Copy server params

This is a preliminary step necessary to move the server to a separate
thread.

BUILD.md

@@ -270,10 +270,10 @@ install` must be run as root)._
 
 #### Option 2: Use prebuilt server
 
- - [`scrcpy-server-v1.20`][direct-scrcpy-server]  
+ - [`scrcpy-server-v1.19`][direct-scrcpy-server]  
-   _(SHA-256: b20aee4951f99b060c4a44000ba94de973f9604758ef62beb253b371aad3df34)_
+   _(SHA-256: 876f9322182e6aac6a58db1334f4225855ef3a17eaebc80aab6601d9d1ecb867)_
 
-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.20/scrcpy-server-v1.20
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.19/scrcpy-server-v1.19
 
 Download the prebuilt server somewhere, and specify its path during the Meson
 configuration:

FAQ.it.md

@@ -140,24 +140,6 @@ Potresti anche dover configurare il [comportamento di ridimensionamento][scaling
 [scaling behavior]: https://github.com/Genymobile/scrcpy/issues/40#issuecomment-424466723
 
 
-### Problema con Wayland
-
-Per impostazione predefinita, SDL utilizza x11 su Linux. Il [video driver] può essere cambiato attraversio la variabile d'ambiente `SDL_VIDEODRIVER`:
-
-[video driver]: https://wiki.libsdl.org/FAQUsingSDL#how_do_i_choose_a_specific_video_driver
-
-```bash
-export SDL_VIDEODRIVER=wayland
-scrcpy
-```
-
-Su alcune distribuzioni (almeno Fedora), il pacchetto `libdecor` deve essere installato manualmente.
-
-Vedi le issues [#2554] e [#2559].
-
-[#2554]: https://github.com/Genymobile/scrcpy/issues/2554
-[#2559]: https://github.com/Genymobile/scrcpy/issues/2559
-
 
 ### Crash del compositore KWin
 

FAQ.md

@@ -222,27 +222,6 @@ scrcpy -m 800
 You could also try another [encoder](README.md#encoder).
 
 
-If you encounter this exception on Android 12, then just upgrade to scrcpy >=
-1.18 (see [#2129]):
-
-```
-> ERROR: Exception on thread Thread[main,5,main]
-java.lang.AssertionError: java.lang.reflect.InvocationTargetException
-    at com.genymobile.scrcpy.wrappers.SurfaceControl.setDisplaySurface(SurfaceControl.java:75)
-    ...
-Caused by: java.lang.reflect.InvocationTargetException
-    at java.lang.reflect.Method.invoke(Native Method)
-    at com.genymobile.scrcpy.wrappers.SurfaceControl.setDisplaySurface(SurfaceControl.java:73)
-    ... 7 more
-Caused by: java.lang.IllegalArgumentException: displayToken must not be null
-    at android.view.SurfaceControl$Transaction.setDisplaySurface(SurfaceControl.java:3067)
-    at android.view.SurfaceControl.setDisplaySurface(SurfaceControl.java:2147)
-    ... 9 more
-```
-
-[#2129]: https://github.com/Genymobile/scrcpy/issues/2129
-
-
 ## Command line on Windows
 
 Some Windows users are not familiar with the command line. Here is how to open a
@@ -283,6 +262,6 @@ to add some arguments.
 
 This FAQ is available in other languages:
 
- - [Italiano (Italiano, `it`) - v1.19](FAQ.it.md)
+ - [Italiano (Italiano, `it`) - v1.17](FAQ.it.md)
  - [한국어 (Korean, `ko`) - v1.11](FAQ.ko.md)
  - [简体中文 (Simplified Chinese, `zh-Hans`) - v1.18](FAQ.zh-Hans.md)

README.it.md

@@ -1,6 +1,6 @@
 _Apri il [README](README.md) originale e sempre aggiornato._
 
-# scrcpy (v1.19)
+# scrcpy (v1.17)
 
 Questa applicazione fornisce la visualizzazione e il controllo dei dispositivi Android collegati via USB (o [via TCP/IP][article-tcpip]). Non richiede alcun accesso _root_.
 Funziona su _GNU/Linux_, _Windows_ e _macOS_.
@@ -205,11 +205,10 @@ Se anche `--max-size` è specificata, il ridimensionamento è applicato dopo il
 Per bloccare l'orientamento della trasmissione:
 
 ```bash
-scrcpy --lock-video-orientation     # orientamento iniziale (corrente)
+scrcpy --lock-video-orientation 0   # orientamento naturale
-scrcpy --lock-video-orientation=0   # orientamento naturale
+scrcpy --lock-video-orientation 1   # 90° antiorario
-scrcpy --lock-video-orientation=1   # 90° antiorario
+scrcpy --lock-video-orientation 2   # 180°
-scrcpy --lock-video-orientation=2   # 180°
+scrcpy --lock-video-orientation 3   # 90° orario
-scrcpy --lock-video-orientation=3   # 90° orario
 ```
 
 Questo influisce sull'orientamento della registrazione.
@@ -232,9 +231,7 @@ Per elencare i codificatori disponibili puoi immettere un nome di codificatore n
 scrcpy --encoder _
 ```
 
-### Cattura
+### Registrazione
-
-#### Registrazione
 
 È possibile registrare lo schermo durante la trasmissione:
 
@@ -256,75 +253,6 @@ I "fotogrammi saltati" sono registrati nonostante non siano mostrati in tempo re
 [packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
 
 
-#### v4l2loopback
-
-Su Linux è possibile inviare il flusso video ad un dispositivo v4l2 loopback, cosicchè un dispositivo Android possa essere aperto come una webcam da qualsiasi strumento compatibile con v4l2.
-
-Il modulo `v4l2loopback` deve essere installato:
-
-```bash
-sudo apt install v4l2loopback-dkms
-```
-
-Per creare un dispositvo v4l2:
-
-```bash
-sudo modprobe v4l2loopback
-```
-
-Questo creerà un nuovo dispositivo video in `/dev/videoN` dove `N` è un intero (più [opzioni](https://github.com/umlaeute/v4l2loopback#options) sono disponibili per crere più dispositivi o dispositivi con ID specifici).
-
-Per elencare i dispositvi attivati:
-
-```bash
-# necessita del pacchetto v4l-utils
-v4l2-ctl --list-devices
-
-# semplice ma potrebbe essere sufficiente
-ls /dev/video*
-```
-
-Per avviare scrcpy utilizzando un v4l2 sink:
-
-```bash
-scrcpy --v4l2-sink=/dev/videoN
-scrcpy --v4l2-sink=/dev/videoN --no-display  # disabilita la finestra di trasmissione
-scrcpy --v4l2-sink=/dev/videoN -N            # versione corta
-```
-
-(sostituisci `N` con l'ID del dispositivo, controlla con `ls /dev/video*`)
-
-Una volta abilitato, puoi aprire il tuo flusso video con uno strumento compatibile con v4l2:
-
-```bash
-ffplay -i /dev/videoN
-vlc v4l2:///dev/videoN   # VLC potrebbe aggiungere del ritardo per il buffer
-```
-
-Per esempio potresti catturare il video in [OBS].
-
-[OBS]: https://obsproject.com/
-
-
-#### Buffering
-
-È possibile aggiungere del buffer. Questo aumenta la latenza ma riduce il jitter (vedi [#2464]).
-
-[#2464]: https://github.com/Genymobile/scrcpy/issues/2464
-
-L'opzione è disponibile per il buffer della visualizzazione:
-
-```bash
-scrcpy --display-buffer=50  # aggiungi 50 ms di buffer per la visualizzazione
-```
-
-e per il V4L2 sink:
-
-```bash
-scrcpy --v4l2-buffer=500    #  aggiungi 50 ms di buffer per il v4l2 sink
-```
-
-
 ### Connessione
 
 #### Wireless
@@ -551,6 +479,15 @@ scrcpy --turn-screen-off --stay-awake
 scrcpy -Sw
 ```
 
+#### Renderizzare i fotogrammi scaduti
+
+Per minimizzare la latenza _scrcpy_ renderizza sempre l'ultimo fotogramma decodificato disponibile in maniera predefinita e tralascia quelli precedenti.
+
+Per forzare la renderizzazione di tutti i fotogrammi (a costo di una possibile latenza superiore), utilizzare:
+
+```bash
+scrcpy --render-expired-frames
+```
 
 #### Mostrare i tocchi
 
@@ -670,14 +607,14 @@ Non c'è alcuna risposta visiva, un log è stampato nella console.
 
 #### Trasferimento di file verso il dispositivo
 
-Per trasferire un file in `/sdcard/Download` del dispositivo trascina e rilascia un file (non APK) nella finestra di _scrcpy_.
+Per trasferire un file in `/sdcard/` del dispositivo trascina e rilascia un file (non APK) nella finestra di _scrcpy_.
 
 Non c'è alcuna risposta visiva, un log è stampato nella console.
 
 La cartella di destinazione può essere cambiata all'avvio:
 
 ```bash
-scrcpy --push-target=/sdcard/Movies/
+scrcpy --push-target=/sdcard/Download/
 ```
 
 
@@ -716,10 +653,10 @@ _<kbd>[Super]</kbd> è il pulsante <kbd>Windows</kbd> o <kbd>Cmd</kbd>._
  | Rotazione schermo a sinistra                         | <kbd>MOD</kbd>+<kbd>←</kbd> _(sinistra)_
  | Rotazione schermo a destra                        | <kbd>MOD</kbd>+<kbd>→</kbd> _(destra)_
  | Ridimensiona finestra a 1:1 (pixel-perfect)        | <kbd>MOD</kbd>+<kbd>g</kbd>
- | Ridimensiona la finestra per rimuovere i bordi neri       | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Doppio click sinistro¹_
+ | Ridimensiona la finestra per rimuovere i bordi neri       | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Doppio click¹_
  | Premi il tasto `HOME`                             | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Click centrale_
  | Premi il tasto `BACK`                             | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Click destro²_
- | Premi il tasto `APP_SWITCH`                       | <kbd>MOD</kbd>+<kbd>s</kbd> \| _4° click³_
+ | Premi il tasto `APP_SWITCH`                       | <kbd>MOD</kbd>+<kbd>s</kbd>
  | Premi il tasto `MENU` (sblocca lo schermo)             | <kbd>MOD</kbd>+<kbd>m</kbd>
  | Premi il tasto `VOLUME_UP`                        | <kbd>MOD</kbd>+<kbd>↑</kbd> _(su)_
  | Premi il tasto `VOLUME_DOWN`                      | <kbd>MOD</kbd>+<kbd>↓</kbd> _(giù)_
@@ -728,26 +665,18 @@ _<kbd>[Super]</kbd> è il pulsante <kbd>Windows</kbd> o <kbd>Cmd</kbd>._
  | Spegni lo schermo del dispositivo (continua a trasmettere)     | <kbd>MOD</kbd>+<kbd>o</kbd>
  | Accendi lo schermo del dispositivo                       | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
  | Ruota lo schermo del dispositivo                        | <kbd>MOD</kbd>+<kbd>r</kbd>
- | Espandi il pannello delle notifiche                   | <kbd>MOD</kbd>+<kbd>n</kbd> \| _5° click³_
+ | Espandi il pannello delle notifiche                   | <kbd>MOD</kbd>+<kbd>n</kbd>
- | Espandi il pannello delle impostazioni                   | <kbd>MOD</kbd>+<kbd>n</kbd>+<kbd>n</kbd> \| _Doppio 5° click³_
+ | Chiudi il pannello delle notifiche                 | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
- | Chiudi pannelli                 | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | Copia negli appunti³                          | <kbd>MOD</kbd>+<kbd>c</kbd>
- | Copia negli appunti⁴                          | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | Taglia negli appunti³                           | <kbd>MOD</kbd>+<kbd>x</kbd>
- | Taglia negli appunti⁴                           | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | Sincronizza gli appunti e incolla³           | <kbd>MOD</kbd>+<kbd>v</kbd>
- | Sincronizza gli appunti e incolla⁴           | <kbd>MOD</kbd>+<kbd>v</kbd>
  | Inietta il testo degli appunti del computer              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
  | Abilita/Disabilita il contatore FPS (su stdout)      | <kbd>MOD</kbd>+<kbd>i</kbd>
  | Pizzica per zoomare                               | <kbd>Ctrl</kbd>+_click e trascina_
 
 _¹Doppio click sui bordi neri per rimuoverli._  
 _²Il tasto destro accende lo schermo se era spento, preme BACK in caso contrario._  
-_³4° e 5° pulsante del mouse, se il tuo mouse ne dispone._  
+_³Solo in Android >= 7._
-_⁴Solo in Android >= 7._
-
-Le scorciatoie con pulsanti ripetuti sono eseguite rilasciando e premendo il pulsante una seconda volta. Per esempio, per eseguire "Espandi il pannello delle impostazioni":
-
-1. Premi e tieni premuto <kbd>MOD</kbd>.
-2. Poi premi due volte <kbd>n</kbd>.
-3. Infine rilascia <kbd>MOD</kbd>.
 
 Tutte le scorciatoie <kbd>Ctrl</kbd>+_tasto_ sono inoltrate al dispositivo, così sono gestite dall'applicazione attiva.
 

README.jp.md

@@ -1,6 +1,6 @@
 _Only the original [README](README.md) is guaranteed to be up-to-date._
 
-# scrcpy (v1.19)
+# scrcpy (v1.17)
 
 このアプリケーションはUSB(もしくは[TCP/IP経由][article-tcpip])で接続されたAndroidデバイスの表示と制御を提供します。このアプリケーションは _root_ でのアクセスを必要としません。このアプリケーションは _GNU/Linux_ 、 _Windows_ そして _macOS_ 上で動作します。
 
@@ -103,22 +103,19 @@ scoop install adb    # まだ入手していない場合
 brew install scrcpy
 ```
 
-`PATH`からアクセス可能な`adb`が必要です。もし持っていない場合はインストールしてください。
+`PATH`から`adb`へのアクセスが必要です。もしまだ持っていない場合:
 
 ```bash
-brew install android-platform-tools
+# Homebrew >= 2.6.0
+brew install --cask android-platform-tools
+
+# Homebrew < 2.6.0
+brew cask install android-platform-tools
 ```
 
-`adb`は[MacPorts]からでもインストールできます。
-
-```bash
-sudo port install scrcpy
-```
-
-[MacPorts]: https://www.macports.org/
-
 また、[アプリケーションをビルド][BUILD]することも可能です。
 
+
 ## 実行
 
 Androidデバイスを接続し、実行:
@@ -187,11 +184,10 @@ scrcpy --crop 1224:1440:0:0   # オフセット位置(0,0)で1224x1440
 ミラーリングの向きをロックするには:
 
 ```bash
-scrcpy --lock-video-orientation     # 現在の向き
+scrcpy --lock-video-orientation 0   # 自然な向き
-scrcpy --lock-video-orientation=0   # 自然な向き
+scrcpy --lock-video-orientation 1   # 90°反時計回り
-scrcpy --lock-video-orientation=1   # 90°反時計回り
+scrcpy --lock-video-orientation 2   # 180°
-scrcpy --lock-video-orientation=2   # 180°
+scrcpy --lock-video-orientation 3   # 90°時計回り
-scrcpy --lock-video-orientation=3   # 90°時計回り
 ```
 
 この設定は録画の向きに影響します。
@@ -214,9 +210,7 @@ scrcpy --encoder OMX.qcom.video.encoder.avc
 scrcpy --encoder _
 ```
 
-### キャプチャ
+### 録画
-
-#### 録画
 
 ミラーリング中に画面の録画をすることが可能です:
 
@@ -239,77 +233,6 @@ scrcpy -Nr file.mkv
 
 [パケット遅延のバリエーション]: https://en.wikipedia.org/wiki/Packet_delay_variation
 
-#### v4l2loopback
-
-Linuxでは、ビデオストリームをv4l2ループバックデバイスに送信することができます。
-v4l2loopbackのデバイスにビデオストリームを送信することで、Androidデバイスをウェブカメラのようにv4l2対応ツールで開くこともできます。
-
-`v4l2loopback` モジュールのインストールが必要です。
-
-```bash
-sudo apt install v4l2loopback-dkms
-```
-
-v4l2デバイスを作成する。
-
-```bash
-sudo modprobe v4l2loopback
-```
-
-これにより、新しいビデオデバイスが `/dev/videoN` に作成されます。（`N` は整数）
-(複数のデバイスや特定のIDのデバイスを作成するために、より多くの[オプション](https://github.com/umlaeute/v4l2loopback#options)が利用可能です。
-多くの[オプション]()が利用可能で複数のデバイスや特定のIDのデバイスを作成できます。
-
-
-有効なデバイスを一覧表示する:
-
-```bash
-# v4l-utilsパッケージが必要
-v4l2-ctl --list-devices
-
-# シンプルですが十分これで確認できます
-ls /dev/video*
-```
-
-v4l2シンクを使用してscrcpyを起動する。
-
-```bash
-scrcpy --v4l2-sink=/dev/videoN
-scrcpy --v4l2-sink=/dev/videoN --no-display  # ミラーリングウィンドウを無効化する
-scrcpy --v4l2-sink=/dev/videoN -N            # 短縮版
-```
-
-(`N` をデバイス ID に置き換えて、`ls /dev/video*` で確認してください)
-有効にすると、v4l2対応のツールでビデオストリームを開けます。
-
-```bash
-ffplay -i /dev/videoN
-vlc v4l2:///dev/videoN   # VLCではバッファリングの遅延が発生する場合があります
-```
-
-例えばですが [OBS]の中にこの映像を取り込めことができます。
-
-[OBS]: https://obsproject.com/
-
-
-#### Buffering
-
-バッファリングを追加することも可能です。これによりレイテンシーは増加しますが、ジッターは減少します。（参照
-[#2464])
-
-[#2464]: https://github.com/Genymobile/scrcpy/issues/2464
-
-このオプションでディスプレイバッファリングを設定できます。
-
-```bash
-scrcpy --display-buffer=50  # ディスプレイに50msのバッファリングを追加する
-```
-
-V4L2の場合はこちらのオプションで設定できます。
-
-```bash
-scrcpy --v4l2-buffer=500    # add 500 ms buffering for v4l2 sink
-```
 
 ### 接続
 
@@ -534,6 +457,16 @@ scrcpy -Sw
 ```
 
 
+#### 期限切れフレームをレンダリングする
+
+初期状態では、待ち時間を最小限にするために、_scrcpy_ は最後にデコードされたフレームをレンダリングし、前のフレームを削除します。
+
+全フレームのレンダリングを強制するには(待ち時間が長くなる可能性があります):
+
+```bash
+scrcpy --render-expired-frames
+```
+
 #### タッチを表示
 
 プレゼンテーションの場合(物理デバイス上で)物理的なタッチを表示すると便利な場合があります。
@@ -653,14 +586,14 @@ APKをインストールするには、(`.apk`で終わる)APKファイルを _s
 
 #### デバイスにファイルを送る
 
-デバイスの`/sdcard/Download`ディレクトリにファイルを送るには、(APKではない)ファイルを _scrcpy_ の画面にドラッグ&ドロップします。
+デバイスの`/sdcard/`ディレクトリにファイルを送るには、(APKではない)ファイルを _scrcpy_ の画面にドラッグ&ドロップします。
 
 見た目のフィードバックはありません。コンソールにログが出力されます。
 
 転送先ディレクトリを起動時に変更することができます:
 
 ```bash
-scrcpy --push-target=/sdcard/Movies/
+scrcpy --push-target /sdcard/foo/bar/
 ```
 
 
@@ -701,7 +634,7 @@ _<kbd>[Super]</kbd>は通常<kbd>Windows</kbd>もしくは<kbd>Cmd</kbd>キー
  | ウィンドウサイズを変更して黒い境界線を削除      | <kbd>MOD</kbd>+<kbd>w</kbd> \| _ダブルクリック¹_
  | `HOME`をクリック                             | <kbd>MOD</kbd>+<kbd>h</kbd> \| _真ん中クリック_
  | `BACK`をクリック                             | <kbd>MOD</kbd>+<kbd>b</kbd> \| _右クリック²_
- | `APP_SWITCH`をクリック                       | <kbd>MOD</kbd>+<kbd>s</kbd> \| _4クリック³_
+ | `APP_SWITCH`をクリック                       | <kbd>MOD</kbd>+<kbd>s</kbd>
  | `MENU` (画面のアンロック)をクリック            | <kbd>MOD</kbd>+<kbd>m</kbd>
  | `VOLUME_UP`をクリック                        | <kbd>MOD</kbd>+<kbd>↑</kbd> _(上)_
  | `VOLUME_DOWN`をクリック                      | <kbd>MOD</kbd>+<kbd>↓</kbd> _(下)_
@@ -710,8 +643,7 @@ _<kbd>[Super]</kbd>は通常<kbd>Windows</kbd>もしくは<kbd>Cmd</kbd>キー
  | デバイス画面をオフにする(ミラーリングしたまま)  | <kbd>MOD</kbd>+<kbd>o</kbd>
  | デバイス画面をオンにする                      | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
  | デバイス画面を回転する                        | <kbd>MOD</kbd>+<kbd>r</kbd>
- | 通知パネルを展開する                          | <kbd>MOD</kbd>+<kbd>n</kbd> \| _5ボタンクリック³_
+ | 通知パネルを展開する                          | <kbd>MOD</kbd>+<kbd>n</kbd>
- | 設定パネルを展開する                          | <kbd>MOD</kbd>+<kbd>n</kbd>+<kbd>n</kbd> \| _5ダブルクリック³_
  | 通知パネルを折りたたむ                        | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
  | クリップボードへのコピー³                     | <kbd>MOD</kbd>+<kbd>c</kbd>
  | クリップボードへのカット³                     | <kbd>MOD</kbd>+<kbd>x</kbd>
@@ -722,17 +654,11 @@ _<kbd>[Super]</kbd>は通常<kbd>Windows</kbd>もしくは<kbd>Cmd</kbd>キー
 
 _¹黒い境界線を削除するため、境界線上でダブルクリック_  
 _²もしスクリーンがオフの場合、右クリックでスクリーンをオンする。それ以外の場合はBackを押します._  
-_³4と5はマウスのボタンです、もしあなたのマウスにボタンがあれば使えます._  
+_³Android 7以上のみ._
-_⁴Android 7以上のみ._
-
-キーを繰り返すショートカットはキーを離して2回目を押したら実行されます。例えば「設定パネルを展開する」を実行する場合は以下のように操作する。
-
- 1. <kbd>MOD</kbd> キーを押し、押したままにする.
- 2. その後に <kbd>n</kbd>キーを2回押す.
- 3. 最後に <kbd>MOD</kbd>キーを離す.
 
 全ての<kbd>Ctrl</kbd>+_キー_ ショートカットはデバイスに転送されます、そのためアクティブなアプリケーションによって処理されます。
 
+
 ## カスタムパス
 
 特定の _adb_ バイナリを使用する場合、そのパスを環境変数`ADB`で構成します:

README.md

@@ -1,37 +1,26 @@
-# scrcpy (v1.20)
+# scrcpy (v1.19)
 
-<img src="data/icon.svg" width="128" height="128" alt="scrcpy" align="right" />
+![icon](data/icon.png)
 
 [Read in another language](#translations)
 
-This application provides display and control of Android devices connected via
+This application provides display and control of Android devices connected on
-USB (or [over TCP/IP](#wireless)). It does not require any _root_ access.
+USB (or [over TCP/IP][article-tcpip]). It does not require any _root_ access.
 It works on _GNU/Linux_, _Windows_ and _macOS_.
 
 ![screenshot](assets/screenshot-debian-600.jpg)
 
 It focuses on:
 
- - **lightness**: native, displays only the device screen
+ - **lightness** (native, displays only the device screen)
- - **performance**: 30~120fps, depending on the device
+ - **performance** (30~60fps)
- - **quality**: 1920×1080 or above
+ - **quality** (1920×1080 or above)
- - **low latency**: [35~70ms][lowlatency]
+ - **low latency** ([35~70ms][lowlatency])
- - **low startup time**: ~1 second to display the first image
+ - **low startup time** (~1 second to display the first image)
- - **non-intrusiveness**: nothing is left installed on the device
+ - **non-intrusiveness** (nothing is left installed on the device)
- - **user benefits**: no account, no ads, no internet required
- - **freedom**: free and open source software
 
 [lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
 
-Its features include:
- - [recording](#recording)
- - mirroring with [device screen off](#turn-screen-off)
- - [copy-paste](#copy-paste) in both directions
- - [configurable quality](#capture-configuration)
- - device screen [as a webcam (V4L2)](#v4l2loopback) (Linux-only)
- - [physical keyboard simulation (HID)](#physical-keyboard-simulation-hid)
-   (Linux-only)
- - and more…
 
 ## Requirements
 
@@ -101,10 +90,10 @@ process][BUILD_simple]).
 For Windows, for simplicity, a prebuilt archive with all the dependencies
 (including `adb`) is available:
 
- - [`scrcpy-win64-v1.20.zip`][direct-win64]  
+ - [`scrcpy-win64-v1.19.zip`][direct-win64]  
-   _(SHA-256: 548532b616288bcaeceff6881ad5e6f0928e5ae2b48c380385f03627401cfdba)_
+   _(SHA-256: 383d6483f25ac0092d4bb9fef6c967351ecd50fc248e0c82932db97d6d32f11b)_
 
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.20/scrcpy-win64-v1.20.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.19/scrcpy-win64-v1.19.zip
 
 It is also available in [Chocolatey]:
 
@@ -337,9 +326,7 @@ For example, you could capture the video within [OBS].
 #### Buffering
 
 It is possible to add buffering. This increases latency but reduces jitter (see
-[#2464]).
+#2464).
-
-[#2464]: https://github.com/Genymobile/scrcpy/issues/2464
 
 The option is available for display buffering:
 
@@ -412,66 +399,21 @@ autoadb scrcpy -s '{}'
 
 [AutoAdb]: https://github.com/rom1v/autoadb
 
-#### Tunnels
+#### SSH tunnel
 
 To connect to a remote device, it is possible to connect a local `adb` client to
 a remote `adb` server (provided they use the same version of the _adb_
-protocol).
+protocol):
-
-##### Remote ADB server
-
-To connect to a remote ADB server, make the server listen on all interfaces:
 
 ```bash
-adb kill-server
+adb kill-server    # kill the local adb server on 5037
-adb -a nodaemon server start
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
 # keep this open
 ```
 
-**Warning: all communications between clients and ADB server are unencrypted.**
+From another terminal:
-
-Suppose that this server is accessible at 192.168.1.2. Then, from another
-terminal, run scrcpy:
 
 ```bash
-export ADB_SERVER_SOCKET=tcp:192.168.1.2:5037
-scrcpy --tunnel-host=192.168.1.2
-```
-
-By default, scrcpy uses the local port used for `adb forward` tunnel
-establishment (typically `27183`, see `--port`). It is also possible to force a
-different tunnel port (it may be useful in more complex situations, when more
-redirections are involved):
-
-```
-scrcpy --tunnel-port=1234
-```
-
-
-##### SSH tunnel
-
-To communicate with a remote ADB server securely, it is preferable to use a SSH
-tunnel.
-
-First, make sure the ADB server is running on the remote computer:
-
-```bash
-adb start-server
-```
-
-Then, establish a SSH tunnel:
-
-```bash
-# local  5038 --> remote  5037
-# local 27183 <-- remote 27183
-ssh -CN -L5038:localhost:5037 -R27183:localhost:27183 your_remote_computer
-# keep this open
-```
-
-From another terminal, run scrcpy:
-
-```bash
-export ADB_SERVER_SOCKET=tcp:localhost:5038
 scrcpy
 ```
 
@@ -479,16 +421,14 @@ To avoid enabling remote port forwarding, you could force a forward connection
 instead (notice the `-L` instead of `-R`):
 
 ```bash
-# local  5038 --> remote  5037
+adb kill-server    # kill the local adb server on 5037
-# local 27183 --> remote 27183
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
-ssh -CN -L5038:localhost:5037 -L27183:localhost:27183 your_remote_computer
 # keep this open
 ```
 
-From another terminal, run scrcpy:
+From another terminal:
 
 ```bash
-export ADB_SERVER_SOCKET=tcp:localhost:5038
 scrcpy --force-adb-forward
 ```
 
@@ -642,14 +582,6 @@ scrcpy --turn-screen-off --stay-awake
 scrcpy -Sw
 ```
 
-#### Power off on close
-
-To turn the device screen off when closing scrcpy:
-
-```bash
-scrcpy --power-off-on-close
-```
-
 
 #### Show touches
 
@@ -746,7 +678,7 @@ a location inverted through the center of the screen.
 By default, scrcpy uses Android key or text injection: it works everywhere, but
 is limited to ASCII.
 
-On Linux, scrcpy can simulate a physical USB keyboard on Android to provide a
+On Linux, scrcpy can simulate a USB physical keyboard on Android to provide a
 better input experience (using [USB HID over AOAv2][hid-aoav2]): the virtual
 keyboard is disabled and it works for all characters and IME.
 
@@ -898,7 +830,7 @@ _<kbd>[Super]</kbd> is typically the <kbd>Windows</kbd> or <kbd>Cmd</kbd> key._
  | Turn device screen on                       | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
  | Rotate device screen                        | <kbd>MOD</kbd>+<kbd>r</kbd>
  | Expand notification panel                   | <kbd>MOD</kbd>+<kbd>n</kbd> \| _5th-click³_
- | Expand settings panel                       | <kbd>MOD</kbd>+<kbd>n</kbd>+<kbd>n</kbd> \| _Double-5th-click³_
+ | Expand settings panel                       |  <kbd>MOD</kbd>+<kbd>n</kbd>+<kbd>n</kbd> \| _Double-5th-click³_
  | Collapse panels                             | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
  | Copy to clipboard⁴                          | <kbd>MOD</kbd>+<kbd>c</kbd>
  | Cut to clipboard⁴                           | <kbd>MOD</kbd>+<kbd>x</kbd>
@@ -906,8 +838,6 @@ _<kbd>[Super]</kbd> is typically the <kbd>Windows</kbd> or <kbd>Cmd</kbd> key._
  | Inject computer clipboard text              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
  | Enable/disable FPS counter (on stdout)      | <kbd>MOD</kbd>+<kbd>i</kbd>
  | Pinch-to-zoom                               | <kbd>Ctrl</kbd>+_click-and-move_
- | Drag & drop APK file                        | Install APK from computer
- | Drag & drop non-APK file                    | [Push file to device](#push-file-to-device)
 
 _¹Double-click on black borders to remove them._  
 _²Right-click turns the screen on if it was off, presses BACK otherwise._  
@@ -997,10 +927,10 @@ Read the [developers page].
 This README is available in other languages:
 
 - [Indonesian (Indonesia, `id`) - v1.16](README.id.md)
-- [Italiano (Italiano, `it`) - v1.19](README.it.md)
+- [Italiano (Italiano, `it`) - v1.17](README.it.md)
-- [日本語 (Japanese, `jp`) - v1.19](README.jp.md)
+- [日本語 (Japanese, `jp`) - v1.17](README.jp.md)
 - [한국어 (Korean, `ko`) - v1.11](README.ko.md)
-- [Português Brasileiro (Brazilian Portuguese, `pt-BR`) - v1.19](README.pt-br.md)
+- [português brasileiro (Brazilian Portuguese, `pt-BR`) - v1.17](README.pt-br.md)
 - [Español (Spanish, `sp`) - v1.17](README.sp.md)
 - [简体中文 (Simplified Chinese, `zh-Hans`) - v1.17](README.zh-Hans.md)
 - [繁體中文 (Traditional Chinese, `zh-Hant`) - v1.15](README.zh-Hant.md)

README.pt-br.md

@@ -1,6 +1,6 @@
 _Apenas o [README](README.md) original é garantido estar atualizado._
 
-# scrcpy (v1.19)
+# scrcpy (v1.17)
 
 Esta aplicação fornece exibição e controle de dispositivos Android conectados via
 USB (ou [via TCP/IP][article-tcpip]). Não requer nenhum acesso _root_.
@@ -38,18 +38,6 @@ controlá-lo usando teclado e mouse.
 
 <a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
 
-### Sumário
-
- - Linux: `apt install scrcpy`
- - Windows: [baixar][direct-win64]
- - macOS: `brew install scrcpy`
-
-  Compilar pelos arquivos fontes: [BUILD] ([processo simplificado][BUILD_simple])
-
-[BUILD]: BUILD.md
-[BUILD_simple]: BUILD.md#simple
-
-
 ### Linux
 
 No Debian (_testing_ e _sid_ por enquanto) e Ubuntu (20.04):
@@ -79,7 +67,9 @@ Para Gentoo, uma [Ebuild] está disponível: [`scrcpy/`][ebuild-link].
 [Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
 [ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
 
-Você também pode [compilar o app manualmente][BUILD] ([processo simplificado][BUILD_simple]).
+Você também pode [compilar o app manualmente][BUILD] (não se preocupe, não é tão
+difícil).
+
 
 
 ### Windows
@@ -123,18 +113,13 @@ brew install scrcpy
 Você precisa do `adb`, acessível pelo seu `PATH`. Se você ainda não o tem:
 
 ```bash
-brew install android-platform-tools
+# Homebrew >= 2.6.0
+brew install --cask android-platform-tools
+
+# Homebrew < 2.6.0
+brew cask install android-platform-tools
 ```
 
-Está também disponivel em [MacPorts], que prepara o adb para você:
-
-```bash
-sudo port install scrcpy
-```
-
-[MacPorts]: https://www.macports.org/
-
-
 Você também pode [compilar o app manualmente][BUILD].
 
 
@@ -210,11 +195,10 @@ Se `--max-size` também for especificado, o redimensionamento é aplicado após
 Para travar a orientação do espelhamento:
 
 ```bash
-scrcpy --lock-video-orientation     # orientação inicial (Atual)
+scrcpy --lock-video-orientation 0   # orientação natural
-scrcpy --lock-video-orientation=0   # orientação natural
+scrcpy --lock-video-orientation 1   # 90° sentido anti-horário
-scrcpy --lock-video-orientation=1   # 90° sentido anti-horário
+scrcpy --lock-video-orientation 2   # 180°
-scrcpy --lock-video-orientation=2   # 180°
+scrcpy --lock-video-orientation 3   # 90° sentido horário
-scrcpy --lock-video-orientation=3   # 90° sentido horário
 ```
 
 Isso afeta a orientação de gravação.
@@ -238,9 +222,7 @@ erro dará os encoders disponíveis:
 scrcpy --encoder _
 ```
 
-### Captura
+### Gravando
-
-#### Gravando
 
 É possível gravar a tela enquanto ocorre o espelhamento:
 
@@ -264,79 +246,6 @@ pacotes][packet delay variation] não impacta o arquivo gravado.
 [packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
 
 
-#### v4l2loopback
-
-Em Linux, é possível enviar a transmissão do video para um disposiivo v4l2 loopback, assim
-o dispositivo Android pode ser aberto como uma webcam por qualquer ferramneta capaz de v4l2
-
-The module `v4l2loopback` must be installed:
-
-```bash
-sudo apt install v4l2loopback-dkms
-```
-
-Para criar um dispositivo v4l2:
-
-```bash
-sudo modprobe v4l2loopback
-```
-
-Isso criara um novo dispositivo de vídeo em `/dev/videoN`, onde `N` é uma integer
-(mais [opções](https://github.com/umlaeute/v4l2loopback#options) estão disponiveis
-para criar varios dispositivos ou dispositivos com IDs específicas).
-
-Para listar os dispositivos disponíveis:
-
-```bash
-# requer o pacote v4l-utils
-v4l2-ctl --list-devices
-
-# simples, mas pode ser suficiente
-ls /dev/video*
-```
-
-Para iniciar o scrcpy usando o coletor v4l2 (sink):
-
-```bash
-scrcpy --v4l2-sink=/dev/videoN
-scrcpy --v4l2-sink=/dev/videoN --no-display  # desativa a janela espelhada
-scrcpy --v4l2-sink=/dev/videoN -N            # versão curta
-```
-
-(troque `N` pelo ID do dipositivo, verifique com `ls /dev/video*`)
-
-Uma vez ativado, você pode abrir suas trasmissões de videos com uma ferramenta capaz de v4l2:
-
-```bash
-ffplay -i /dev/videoN
-vlc v4l2:///dev/videoN   # VLC pode adicionar um pouco de atraso de buffering
-```
-
-Por exemplo, você pode capturar o video dentro do [OBS].
-
-[OBS]: https://obsproject.com/
-
-
-#### Buffering
-
-É possivel adicionar buffering. Isso aumenta a latência, mas reduz a tenção (jitter) (veja
-[#2464]).
-
-[#2464]: https://github.com/Genymobile/scrcpy/issues/2464
-
-A opção éta disponivel para buffering de exibição:
-
-```bash
-scrcpy --display-buffer=50  # adiciona 50 ms de buffering para a exibição
-```
-
-e coletor V4L2:
-
-```bash
-scrcpy --v4l2-buffer=500    # adiciona 500 ms de buffering para coletor V4L2
-```
-
-,
 ### Conexão
 
 #### Sem fio
@@ -579,6 +488,18 @@ scrcpy -Sw
 ```
 
 
+#### Renderizar frames expirados
+
+Por padrão, para minimizar a latência, _scrcpy_ sempre renderiza o último frame decodificado
+disponível, e descarta o anterior.
+
+Para forçar a renderização de todos os frames (com o custo de um possível aumento de
+latência), use:
+
+```bash
+scrcpy --render-expired-frames
+```
+
 #### Mostrar toques
 
 Para apresentações, pode ser útil mostrar toques físicos (no dispositivo
@@ -726,7 +647,7 @@ Não existe feedback visual, um log é imprimido no console.
 
 #### Enviar arquivo para dispositivo
 
-Para enviar um arquivo para `/sdcard/Download/` no dispositivo, arraste e solte um arquivo (não-APK) para a
+Para enviar um arquivo para `/sdcard/` no dispositivo, arraste e solte um arquivo (não-APK) para a
 janela do _scrcpy_.
 
 Não existe feedback visual, um log é imprimido no console.
@@ -773,12 +694,12 @@ _<kbd>[Super]</kbd> é tipicamente a tecla <kbd>Windows</kbd> ou <kbd>Cmd</kbd>.
  | Mudar modo de tela cheia                    | <kbd>MOD</kbd>+<kbd>f</kbd>
  | Rotacionar display para esquerda            | <kbd>MOD</kbd>+<kbd>←</kbd> _(esquerda)_
  | Rotacionar display para direita             | <kbd>MOD</kbd>+<kbd>→</kbd> _(direita)_
- | Redimensionar janela para 1:1 (pixel-perfeito) | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | Redimensionar janela para 1:1 (pixel-perfect) | <kbd>MOD</kbd>+<kbd>g</kbd>
- | Redimensionar janela para remover bordas pretas | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Clique-duplo-esquerdo¹_
+ | Redimensionar janela para remover bordas pretas | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Clique-duplo¹_
  | Clicar em `HOME`                            | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Clique-do-meio_
  | Clicar em `BACK`                            | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Clique-direito²_
- | Clicar em `APP_SWITCH`                      | <kbd>MOD</kbd>+<kbd>s</kbd> \| _Clique-do-4.°³_
+ | Clicar em `APP_SWITCH`                      | <kbd>MOD</kbd>+<kbd>s</kbd>
- | Clicar em `MENU` (desbloquear tela)         | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | Clicar em `MENU` (desbloquear tela          | <kbd>MOD</kbd>+<kbd>m</kbd>
  | Clicar em `VOLUME_UP`                       | <kbd>MOD</kbd>+<kbd>↑</kbd> _(cima)_
  | Clicar em `VOLUME_DOWN`                     | <kbd>MOD</kbd>+<kbd>↓</kbd> _(baixo)_
  | Clicar em `POWER`                           | <kbd>MOD</kbd>+<kbd>p</kbd>
@@ -786,27 +707,18 @@ _<kbd>[Super]</kbd> é tipicamente a tecla <kbd>Windows</kbd> ou <kbd>Cmd</kbd>.
  | Desligar tela do dispositivo (continuar espelhando) | <kbd>MOD</kbd>+<kbd>o</kbd>
  | Ligar tela do dispositivo                   | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
  | Rotacionar tela do dispositivo              | <kbd>MOD</kbd>+<kbd>r</kbd>
- | Expandir painel de notificação              | <kbd>MOD</kbd>+<kbd>n</kbd> \| _Clique-do-5.°³_
+ | Expandir painel de notificação              | <kbd>MOD</kbd>+<kbd>n</kbd>
- | Expandir painel de configurção              | <kbd>MOD</kbd>+<kbd>n</kbd>+<kbd>n</kbd> \| _Clique-duplo-do-5.°³_
+ | Colapsar painel de notificação              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
- | Colapsar paineis                            | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | Copiar para área de transferência³          | <kbd>MOD</kbd>+<kbd>c</kbd>
- | Copiar para área de transferência⁴          | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | Recortar para área de transferência³        | <kbd>MOD</kbd>+<kbd>x</kbd>
- | Recortar para área de transferência⁴        | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | Sincronizar áreas de transferência e colar³ | <kbd>MOD</kbd>+<kbd>v</kbd>
- | Sincronizar áreas de transferência e colar⁴ | <kbd>MOD</kbd>+<kbd>v</kbd>
  | Injetar texto da área de transferência do computador | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
  | Ativar/desativar contador de FPS (em stdout) | <kbd>MOD</kbd>+<kbd>i</kbd>
- | Pinçar para dar zoom                        | <kbd>Ctrl</kbd>+_Clicar-e-mover_
+ | Pinçar para dar zoom                        | <kbd>Ctrl</kbd>+_clicar-e-mover_
 
-_¹Clique-duplo-esquerdo na borda preta para remove-la._  
+_¹Clique-duplo em bordas pretas para removê-las._  
-_²Clique-direito liga a tela caso esteja desligada, pressione BACK caso contrário._  
+_²Clique-direito liga a tela se ela estiver desligada, pressiona BACK caso contrário._
-_³4.° and 5.° botões do mouse, caso o mouse possua._  
+_³Apenas em Android >= 7._
-_⁴Apenas em Android >= 7._
-
-Atalhos com teclas reptidas são executados soltando e precionando a tecla
-uma segunda vez. Por exemplo, para executar "Expandir painel de Configurção":
-
- 1. Mantenha pressionado <kbd>MOD</kbd>.
- 2. Depois click duas vezes <kbd>n</kbd>.
- 3. Finalmente, solte <kbd>MOD</kbd>.
 
 Todos os atalhos <kbd>Ctrl</kbd>+_tecla_ são encaminhados para o dispositivo, para que eles sejam
 tratados pela aplicação ativa.
@@ -817,9 +729,7 @@ tratados pela aplicação ativa.
 Para usar um binário _adb_ específico, configure seu caminho na variável de ambiente
 `ADB`:
 
-```bash
+    ADB=/caminho/para/adb scrcpy
-ADB=/caminho/para/adb scrcpy
-```
 
 Para sobrepor o caminho do arquivo `scrcpy-server`, configure seu caminho em
 `SCRCPY_SERVER_PATH`.
@@ -841,6 +751,8 @@ Um colega me desafiou a encontrar um nome tão impronunciável quanto [gnirehtet
 
 Veja [BUILD].
 
+[BUILD]: BUILD.md
+
 
 ## Problemas comuns
 

app/meson.build

@@ -1,7 +1,6 @@
 src = [
     'src/main.c',
     'src/adb.c',
-    'src/adb_tunnel.c',
     'src/cli.c',
     'src/clock.c',
     'src/compat.c',
@@ -25,41 +24,18 @@ src = [
     'src/server.c',
     'src/stream.c',
     'src/video_buffer.c',
-    'src/util/acksync.c',
-    'src/util/file.c',
-    'src/util/intr.c',
     'src/util/log.c',
     'src/util/net.c',
-    'src/util/net_intr.c',
     'src/util/process.c',
-    'src/util/process_intr.c',
+    'src/util/str_util.c',
-    'src/util/strbuf.c',
-    'src/util/str.c',
-    'src/util/term.c',
     'src/util/thread.c',
     'src/util/tick.c',
 ]
 
-conf = configuration_data()
-
 if host_machine.system() == 'windows'
-    src += [
+    src += [ 'src/sys/win/process.c' ]
-        'src/sys/win/file.c',
-        'src/sys/win/process.c',
-    ]
-    conf.set('_WIN32_WINNT', '0x0600')
-    conf.set('WINVER', '0x0600')
 else
-    src += [
+    src += [ 'src/sys/unix/process.c' ]
-        'src/sys/unix/file.c',
-        'src/sys/unix/process.c',
-    ]
-    conf.set('_POSIX_C_SOURCE', '200809L')
-    conf.set('_XOPEN_SOURCE', '700')
-    conf.set('_GNU_SOURCE', true)
-    if host_machine.system() == 'darwin'
-        conf.set('_DARWIN_C_SOURCE', true)
-    endif
 endif
 
 v4l2_support = host_machine.system() == 'linux'
@@ -139,6 +115,8 @@ if host_machine.system() == 'windows'
     dependencies += cc.find_library('ws2_32')
 endif
 
+conf = configuration_data()
+
 foreach f : check_functions
   if cc.has_function(f)
     define = 'HAVE_' + f.underscorify().to_upper()
@@ -208,10 +186,7 @@ if get_option('buildtype') == 'debug'
             'tests/test_cli.c',
             'src/cli.c',
             'src/options.c',
-            'src/util/net.c',
+            'src/util/str_util.c',
-            'src/util/str.c',
-            'src/util/strbuf.c',
-            'src/util/term.c',
         ]],
         ['test_clock', [
             'tests/test_clock.c',
@@ -220,8 +195,7 @@ if get_option('buildtype') == 'debug'
         ['test_control_msg_serialize', [
             'tests/test_control_msg_serialize.c',
             'src/control_msg.c',
-            'src/util/str.c',
+            'src/util/str_util.c',
-            'src/util/strbuf.c',
         ]],
         ['test_device_msg_deserialize', [
             'tests/test_device_msg_deserialize.c',
@@ -230,14 +204,9 @@ if get_option('buildtype') == 'debug'
         ['test_queue', [
             'tests/test_queue.c',
         ]],
-        ['test_strbuf', [
+        ['test_strutil', [
-            'tests/test_strbuf.c',
+            'tests/test_strutil.c',
-            'src/util/strbuf.c',
+            'src/util/str_util.c',
-        ]],
-        ['test_str', [
-            'tests/test_str.c',
-            'src/util/str.c',
-            'src/util/strbuf.c',
         ]],
     ]
 

app/scrcpy.1

@@ -136,10 +136,6 @@ Set the TCP port (range) used by the client to listen.
 
 Default is 27183:27199.
 
-.TP
-.B \-\-power\-off\-on\-close
-Turn the device screen off when closing scrcpy.
-
 .TP
 .B \-\-prefer\-text
 Inject alpha characters and space as text events instead of key events.
@@ -203,18 +199,6 @@ Enable "show touches" on start, restore the initial value on exit.
 
 It only shows physical touches (not clicks from scrcpy).
 
-.TP
-.BI "\-\-tunnel\-host " ip
-Set the IP address of the adb tunnel to reach the scrcpy server. This option automatically enables --force-adb-forward.
-
-Default is localhost.
-
-.TP
-.BI "\-\-tunnel\-port " port
-Set the TCP port of the adb tunnel to reach the scrcpy server. This option automatically enables --force-adb-forward.
-
-Default is 0 (not forced): the local port used for establishing the tunnel will be used.
-
 .TP
 .BI "\-\-v4l2-sink " /dev/videoN
 Output to v4l2loopback device.
@@ -380,10 +364,6 @@ Pinch-to-zoom from the center of the screen
 .B Drag & drop APK file
 Install APK from computer
 
-.TP
-.B Drag & drop non-APK file
-Push file to device (see \fB\-\-push\-target\fR)
-
 
 .SH Environment variables
 

app/src/adb.c

@@ -5,10 +5,8 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "util/file.h"
 #include "util/log.h"
-#include "util/process_intr.h"
+#include "util/str_util.h"
-#include "util/str.h"
 
 static const char *adb_command;
 
@@ -70,7 +68,7 @@ show_adb_installation_msg() {
         {"pacman", "pacman -S android-tools"},
     };
     for (size_t i = 0; i < ARRAY_LEN(pkg_managers); ++i) {
-        if (sc_file_executable_exists(pkg_managers[i].binary)) {
+        if (search_executable(pkg_managers[i].binary)) {
             LOGI("You may install 'adb' by \"%s\"", pkg_managers[i].command);
             return;
         }
@@ -82,7 +80,7 @@ show_adb_installation_msg() {
 }
 
 static void
-show_adb_err_msg(enum sc_process_result err, const char *const argv[]) {
+show_adb_err_msg(enum process_result err, const char *const argv[]) {
 #define MAX_COMMAND_STRING_LEN 1024
     char *buf = malloc(MAX_COMMAND_STRING_LEN);
     if (!buf) {
@@ -91,18 +89,18 @@ show_adb_err_msg(enum sc_process_result err, const char *const argv[]) {
     }
 
     switch (err) {
-        case SC_PROCESS_ERROR_GENERIC:
+        case PROCESS_ERROR_GENERIC:
             argv_to_string(argv, buf, MAX_COMMAND_STRING_LEN);
             LOGE("Failed to execute: %s", buf);
             break;
-        case SC_PROCESS_ERROR_MISSING_BINARY:
+        case PROCESS_ERROR_MISSING_BINARY:
             argv_to_string(argv, buf, MAX_COMMAND_STRING_LEN);
             LOGE("Command not found: %s", buf);
             LOGE("(make 'adb' accessible from your PATH or define its full"
                  "path in the ADB environment variable)");
             show_adb_installation_msg();
             break;
-        case SC_PROCESS_SUCCESS:
+        case PROCESS_SUCCESS:
             // do nothing
             break;
     }
@@ -110,15 +108,16 @@ show_adb_err_msg(enum sc_process_result err, const char *const argv[]) {
     free(buf);
 }
 
-static sc_pid
+process_t
-adb_execute_p(const char *serial, const char *const adb_cmd[],
+adb_execute_redirect(const char *serial, const char *const adb_cmd[],
-              size_t len, sc_pipe *pout) {
+                     size_t len, pipe_t *pipe_stdin, pipe_t *pipe_stdout,
+                     pipe_t *pipe_stderr) {
     int i;
-    sc_pid pid;
+    process_t process;
 
     const char **argv = malloc((len + 4) * sizeof(*argv));
     if (!argv) {
-        return SC_PROCESS_NONE;
+        return PROCESS_NONE;
     }
 
     argv[0] = get_adb_command();
@@ -132,25 +131,26 @@ adb_execute_p(const char *serial, const char *const adb_cmd[],
 
     memcpy(&argv[i], adb_cmd, len * sizeof(const char *));
     argv[len + i] = NULL;
-    enum sc_process_result r =
+    enum process_result r =
-        sc_process_execute_p(argv, &pid, NULL, pout, NULL);
+        process_execute_redirect(argv, &process, pipe_stdin, pipe_stdout,
-    if (r != SC_PROCESS_SUCCESS) {
+                                 pipe_stderr);
+    if (r != PROCESS_SUCCESS) {
         show_adb_err_msg(r, argv);
-        pid = SC_PROCESS_NONE;
+        process = PROCESS_NONE;
     }
 
     free(argv);
-    return pid;
+    return process;
 }
 
-sc_pid
+process_t
 adb_execute(const char *serial, const char *const adb_cmd[], size_t len) {
-    return adb_execute_p(serial, adb_cmd, len, NULL);
+    return adb_execute_redirect(serial, adb_cmd, len, NULL, NULL, NULL);
 }
 
-static sc_pid
+process_t
-adb_exec_forward(const char *serial, uint16_t local_port,
+adb_forward(const char *serial, uint16_t local_port,
-                 const char *device_socket_name) {
+            const char *device_socket_name) {
     char local[4 + 5 + 1]; // tcp:PORT
     char remote[108 + 14 + 1]; // localabstract:NAME
     sprintf(local, "tcp:%" PRIu16, local_port);
@@ -159,17 +159,17 @@ adb_exec_forward(const char *serial, uint16_t local_port,
     return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 }
 
-static sc_pid
+process_t
-adb_exec_forward_remove(const char *serial, uint16_t local_port) {
+adb_forward_remove(const char *serial, uint16_t local_port) {
     char local[4 + 5 + 1]; // tcp:PORT
     sprintf(local, "tcp:%" PRIu16, local_port);
     const char *const adb_cmd[] = {"forward", "--remove", local};
     return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 }
 
-static sc_pid
+process_t
-adb_exec_reverse(const char *serial, const char *device_socket_name,
+adb_reverse(const char *serial, const char *device_socket_name,
-                 uint16_t local_port) {
+            uint16_t local_port) {
     char local[4 + 5 + 1]; // tcp:PORT
     char remote[108 + 14 + 1]; // localabstract:NAME
     sprintf(local, "tcp:%" PRIu16, local_port);
@@ -178,131 +178,102 @@ adb_exec_reverse(const char *serial, const char *device_socket_name,
     return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 }
 
-static sc_pid
+process_t
-adb_exec_reverse_remove(const char *serial, const char *device_socket_name) {
+adb_reverse_remove(const char *serial, const char *device_socket_name) {
     char remote[108 + 14 + 1]; // localabstract:NAME
     snprintf(remote, sizeof(remote), "localabstract:%s", device_socket_name);
     const char *const adb_cmd[] = {"reverse", "--remove", remote};
     return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 }
 
-static sc_pid
+process_t
-adb_exec_push(const char *serial, const char *local, const char *remote) {
+adb_push(const char *serial, const char *local, const char *remote) {
 #ifdef __WINDOWS__
     // Windows will parse the string, so the paths must be quoted
     // (see sys/win/command.c)
-    local = sc_str_quote(local);
+    local = strquote(local);
     if (!local) {
-        return SC_PROCESS_NONE;
+        return PROCESS_NONE;
     }
-    remote = sc_str_quote(remote);
+    remote = strquote(remote);
     if (!remote) {
         free((void *) local);
-        return SC_PROCESS_NONE;
+        return PROCESS_NONE;
     }
 #endif
 
     const char *const adb_cmd[] = {"push", local, remote};
-    sc_pid pid = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
+    process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 
 #ifdef __WINDOWS__
     free((void *) remote);
     free((void *) local);
 #endif
 
-    return pid;
+    return proc;
 }
 
-static sc_pid
+process_t
-adb_exec_install(const char *serial, const char *local) {
+adb_install(const char *serial, const char *local) {
 #ifdef __WINDOWS__
     // Windows will parse the string, so the local name must be quoted
     // (see sys/win/command.c)
-    local = sc_str_quote(local);
+    local = strquote(local);
     if (!local) {
-        return SC_PROCESS_NONE;
+        return PROCESS_NONE;
     }
 #endif
 
     const char *const adb_cmd[] = {"install", "-r", local};
-    sc_pid pid = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
+    process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 
 #ifdef __WINDOWS__
     free((void *) local);
 #endif
 
-    return pid;
+    return proc;
 }
 
-static sc_pid
+static ssize_t
-adb_exec_get_serialno(sc_pipe *pout) {
+adb_execute_for_output(const char *serial, const char *const adb_cmd[],
-    const char *const adb_cmd[] = {"get-serialno"};
+                       size_t adb_cmd_len, char *buf, size_t buf_len,
-    return adb_execute_p(NULL, adb_cmd, ARRAY_LEN(adb_cmd), pout);
+                       const char *name) {
+    pipe_t pipe_stdout;
+    process_t proc = adb_execute_redirect(serial, adb_cmd, adb_cmd_len, NULL,
+                                          &pipe_stdout, NULL);
+
+    ssize_t r = read_pipe_all(pipe_stdout, buf, buf_len);
+    close_pipe(pipe_stdout);
+
+    if (!process_check_success(proc, name, true)) {
+        return -1;
+    }
+
+    return r;
 }
 
-bool
+static size_t
-adb_forward(struct sc_intr *intr, const char *serial, uint16_t local_port,
+truncate_first_line(char *data, size_t len) {
-            const char *device_socket_name) {
+    data[len - 1] = '\0';
-    sc_pid pid = adb_exec_forward(serial, local_port, device_socket_name);
+    char *eol = strpbrk(data, "\r\n");
-    return sc_process_check_success_intr(intr, pid, "adb forward", true);
+    if (eol) {
-}
+        *eol = '\0';
-
+        len = eol - data;
-bool
+    }
-adb_forward_remove(struct sc_intr *intr, const char *serial,
+    return len;
-                   uint16_t local_port) {
-    sc_pid pid = adb_exec_forward_remove(serial, local_port);
-    return sc_process_check_success_intr(intr, pid, "adb forward --remove",
-                                         true);
-}
-
-bool
-adb_reverse(struct sc_intr *intr, const char *serial,
-            const char *device_socket_name, uint16_t local_port) {
-    sc_pid pid = adb_exec_reverse(serial, device_socket_name, local_port);
-    return sc_process_check_success_intr(intr, pid, "adb reverse", true);
-}
-
-bool
-adb_reverse_remove(struct sc_intr *intr, const char *serial,
-                   const char *device_socket_name) {
-    sc_pid pid = adb_exec_reverse_remove(serial, device_socket_name);
-    return sc_process_check_success_intr(intr, pid, "adb reverse --remove",
-                                         true);
-}
-
-bool
-adb_push(struct sc_intr *intr, const char *serial, const char *local,
-         const char *remote) {
-    sc_pid pid = adb_exec_push(serial, local, remote);
-    return sc_process_check_success_intr(intr, pid, "adb push", true);
-}
-
-bool
-adb_install(struct sc_intr *intr, const char *serial, const char *local) {
-    sc_pid pid = adb_exec_install(serial, local);
-    return sc_process_check_success_intr(intr, pid, "adb install", true);
 }
 
 char *
-adb_get_serialno(struct sc_intr *intr) {
+adb_get_serialno(void) {
-    sc_pipe pout;
-    sc_pid pid = adb_exec_get_serialno(&pout);
-    if (pid == SC_PROCESS_NONE) {
-        LOGE("Could not execute \"adb get-serialno\"");
-        return NULL;
-    }
-
     char buf[128];
-    ssize_t r = sc_pipe_read_all_intr(intr, pid, pout, buf, sizeof(buf));
-    sc_pipe_close(pout);
 
-    bool ok =
+    const char *const adb_cmd[] = {"get-serialno"};
-        sc_process_check_success_intr(intr, pid, "adb get-serialno", true);
+    ssize_t r = adb_execute_for_output(NULL, adb_cmd, ARRAY_LEN(adb_cmd),
-    if (!ok) {
+                                       buf, sizeof(buf), "get-serialno");
+    if (r <= 0) {
         return NULL;
     }
 
-    sc_str_truncate(buf, r, " \r\n");
+    truncate_first_line(buf, r);
-
     return strdup(buf);
 }

app/src/adb.h

@@ -6,40 +6,38 @@
 #include <stdbool.h>
 #include <inttypes.h>
 
-#include "util/intr.h"
+#include "util/process.h"
 
-sc_pid
+process_t
 adb_execute(const char *serial, const char *const adb_cmd[], size_t len);
 
-bool
+process_t
-adb_forward(struct sc_intr *intr, const char *serial, uint16_t local_port,
+adb_execute_redirect(const char *serial, const char *const adb_cmd[],
+                     size_t len, pipe_t *pipe_stdin, pipe_t *pipe_stdout,
+                     pipe_t *pipe_stderr);
+
+process_t
+adb_forward(const char *serial, uint16_t local_port,
             const char *device_socket_name);
 
-bool
+process_t
-adb_forward_remove(struct sc_intr *intr, const char *serial,
+adb_forward_remove(const char *serial, uint16_t local_port);
-                   uint16_t local_port);
 
-bool
+process_t
-adb_reverse(struct sc_intr *intr, const char *serial,
+adb_reverse(const char *serial, const char *device_socket_name,
-            const char *device_socket_name, uint16_t local_port);
+            uint16_t local_port);
 
-bool
+process_t
-adb_reverse_remove(struct sc_intr *intr, const char *serial,
+adb_reverse_remove(const char *serial, const char *device_socket_name);
-                   const char *device_socket_name);
 
-bool
+process_t
-adb_push(struct sc_intr *intr, const char *serial, const char *local,
+adb_push(const char *serial, const char *local, const char *remote);
-         const char *remote);
 
-bool
+process_t
-adb_install(struct sc_intr *intr, const char *serial, const char *local);
+adb_install(const char *serial, const char *local);
 
-/**
+// Return the result of "adb get-serialno".
- * Execute `adb get-serialno`
- *
- * Return the result, to be freed by the caller, or NULL on error.
- */
 char *
-adb_get_serialno(struct sc_intr *intr);
+adb_get_serialno(void);
 
 #endif

app/src/adb_tunnel.c

@@ -1,165 +0,0 @@
-#include "adb_tunnel.h"
-
-#include <assert.h>
-
-#include "adb.h"
-#include "util/log.h"
-#include "util/net_intr.h"
-#include "util/process_intr.h"
-
-#define SC_SOCKET_NAME "scrcpy"
-
-static bool
-listen_on_port(struct sc_intr *intr, sc_socket socket, uint16_t port) {
-    return net_listen_intr(intr, socket, IPV4_LOCALHOST, port, 1);
-}
-
-static bool
-enable_tunnel_reverse_any_port(struct sc_adb_tunnel *tunnel,
-                               struct sc_intr *intr, const char *serial,
-                               struct sc_port_range port_range) {
-    uint16_t port = port_range.first;
-    for (;;) {
-        if (!adb_reverse(intr, serial, SC_SOCKET_NAME, port)) {
-            // the command itself failed, it will fail on any port
-            return false;
-        }
-
-        // At the application level, the device part is "the server" because it
-        // serves video stream and control. However, at the network level, the
-        // client listens and the server connects to the client. That way, the
-        // client can listen before starting the server app, so there is no
-        // need to try to connect until the server socket is listening on the
-        // device.
-        sc_socket server_socket = net_socket();
-        if (server_socket != SC_SOCKET_NONE) {
-            bool ok = listen_on_port(intr, server_socket, port);
-            if (ok) {
-                // success
-                tunnel->server_socket = server_socket;
-                tunnel->local_port = port;
-                tunnel->enabled = true;
-                return true;
-            }
-
-            net_close(server_socket);
-        }
-
-        if (sc_intr_is_interrupted(intr)) {
-            // Stop immediately
-            return false;
-        }
-
-        // failure, disable tunnel and try another port
-        if (!adb_reverse_remove(intr, serial, SC_SOCKET_NAME)) {
-            LOGW("Could not remove reverse tunnel on port %" PRIu16, port);
-        }
-
-        // check before incrementing to avoid overflow on port 65535
-        if (port < port_range.last) {
-            LOGW("Could not listen on port %" PRIu16", retrying on %" PRIu16,
-                 port, (uint16_t) (port + 1));
-            port++;
-            continue;
-        }
-
-        if (port_range.first == port_range.last) {
-            LOGE("Could not listen on port %" PRIu16, port_range.first);
-        } else {
-            LOGE("Could not listen on any port in range %" PRIu16 ":%" PRIu16,
-                 port_range.first, port_range.last);
-        }
-        return false;
-    }
-}
-
-static bool
-enable_tunnel_forward_any_port(struct sc_adb_tunnel *tunnel,
-                               struct sc_intr *intr, const char *serial,
-                               struct sc_port_range port_range) {
-    tunnel->forward = true;
-
-    uint16_t port = port_range.first;
-    for (;;) {
-        if (adb_forward(intr, serial, port, SC_SOCKET_NAME)) {
-            // success
-            tunnel->local_port = port;
-            tunnel->enabled = true;
-            return true;
-        }
-
-        if (sc_intr_is_interrupted(intr)) {
-            // Stop immediately
-            return false;
-        }
-
-        if (port < port_range.last) {
-            LOGW("Could not forward port %" PRIu16", retrying on %" PRIu16,
-                 port, (uint16_t) (port + 1));
-            port++;
-            continue;
-        }
-
-        if (port_range.first == port_range.last) {
-            LOGE("Could not forward port %" PRIu16, port_range.first);
-        } else {
-            LOGE("Could not forward any port in range %" PRIu16 ":%" PRIu16,
-                 port_range.first, port_range.last);
-        }
-        return false;
-    }
-}
-
-void
-sc_adb_tunnel_init(struct sc_adb_tunnel *tunnel) {
-    tunnel->enabled = false;
-    tunnel->forward = false;
-    tunnel->server_socket = SC_SOCKET_NONE;
-    tunnel->local_port = 0;
-}
-
-bool
-sc_adb_tunnel_open(struct sc_adb_tunnel *tunnel, struct sc_intr *intr,
-                   const char *serial, struct sc_port_range port_range,
-                   bool force_adb_forward) {
-    assert(!tunnel->enabled);
-
-    if (!force_adb_forward) {
-        // Attempt to use "adb reverse"
-        if (enable_tunnel_reverse_any_port(tunnel, intr, serial, port_range)) {
-            return true;
-        }
-
-        // if "adb reverse" does not work (e.g. over "adb connect"), it
-        // fallbacks to "adb forward", so the app socket is the client
-
-        LOGW("'adb reverse' failed, fallback to 'adb forward'");
-    }
-
-    return enable_tunnel_forward_any_port(tunnel, intr, serial, port_range);
-}
-
-bool
-sc_adb_tunnel_close(struct sc_adb_tunnel *tunnel, struct sc_intr *intr,
-                    const char *serial) {
-    assert(tunnel->enabled);
-
-    bool ret;
-    if (tunnel->forward) {
-        ret = adb_forward_remove(intr, serial, tunnel->local_port);
-    } else {
-        ret = adb_reverse_remove(intr, serial, SC_SOCKET_NAME);
-
-        assert(tunnel->server_socket != SC_SOCKET_NONE);
-        if (!net_close(tunnel->server_socket)) {
-            LOGW("Could not close server socket");
-        }
-
-        // server_socket is never used anymore
-    }
-
-    // Consider tunnel disabled even if the command failed
-    tunnel->enabled = false;
-
-    return ret;
-}

app/src/adb_tunnel.h

@@ -1,47 +0,0 @@
-#ifndef SC_ADB_TUNNEL_H
-#define SC_ADB_TUNNEL_H
-
-#include "common.h"
-
-#include <stdbool.h>
-#include <stdint.h>
-
-#include "options.h"
-#include "util/intr.h"
-#include "util/net.h"
-
-struct sc_adb_tunnel {
-    bool enabled;
-    bool forward; // use "adb forward" instead of "adb reverse"
-    sc_socket server_socket; // only used if !forward
-    uint16_t local_port;
-};
-
-/**
- * Initialize the adb tunnel struct to default values
- */
-void
-sc_adb_tunnel_init(struct sc_adb_tunnel *tunnel);
-
-/**
- * Open a tunnel
- *
- * Blocking calls may be interrupted asynchronously via `intr`.
- *
- * If `force_adb_forward` is not set, then attempts to set up an "adb reverse"
- * tunnel first. Only if it fails (typical on old Android version connected via
- * TCP/IP), use "adb forward".
- */
-bool
-sc_adb_tunnel_open(struct sc_adb_tunnel *tunnel, struct sc_intr *intr,
-                   const char *serial, struct sc_port_range port_range,
-                   bool force_adb_forward);
-
-/**
- * Close the tunnel
- */
-bool
-sc_adb_tunnel_close(struct sc_adb_tunnel *tunnel, struct sc_intr *intr,
-                    const char *serial);
-
-#endif

app/src/aoa_hid.c

@@ -35,7 +35,7 @@ sc_hid_event_init(struct sc_hid_event *hid_event, uint16_t accessory_id,
     hid_event->accessory_id = accessory_id;
     hid_event->buffer = buffer;
     hid_event->size = buffer_size;
-    hid_event->ack_to_wait = SC_SEQUENCE_INVALID;
+    hid_event->delay = 0;
 }
 
 void
@@ -118,10 +118,7 @@ sc_aoa_open_usb_handle(libusb_device *device, libusb_device_handle **handle) {
 }
 
 bool
-sc_aoa_init(struct sc_aoa *aoa, const char *serial,
+sc_aoa_init(struct sc_aoa *aoa, const char *serial) {
-            struct sc_acksync *acksync) {
-    assert(acksync);
-
     cbuf_init(&aoa->queue);
 
     if (!sc_mutex_init(&aoa->mutex)) {
@@ -158,7 +155,6 @@ sc_aoa_init(struct sc_aoa *aoa, const char *serial,
     }
 
     aoa->stopped = false;
-    aoa->acksync = acksync;
 
     return true;
 }
@@ -336,28 +332,23 @@ run_aoa_thread(void *data) {
         assert(non_empty);
         (void) non_empty;
 
-        uint64_t ack_to_wait = event.ack_to_wait;
+        assert(event.delay >= 0);
-        sc_mutex_unlock(&aoa->mutex);
+        if (event.delay) {
-
+            // Wait during the specified delay before injecting the HID event
-        if (ack_to_wait != SC_SEQUENCE_INVALID) {
+            sc_tick deadline = sc_tick_now() + event.delay;
-            LOGD("Waiting ack from server sequence=%" PRIu64_, ack_to_wait);
+            bool timed_out = false;
-            // Do not block the loop indefinitely if the ack never comes (it should
+            while (!aoa->stopped && !timed_out) {
-            // never happen)
+                timed_out = !sc_cond_timedwait(&aoa->event_cond, &aoa->mutex,
-            sc_tick deadline = sc_tick_now() + SC_TICK_FROM_MS(500);
+                                               deadline);
-            enum sc_acksync_wait_result result =
+            }
-                sc_acksync_wait(aoa->acksync, ack_to_wait, deadline);
+            if (aoa->stopped) {
-
+                sc_mutex_unlock(&aoa->mutex);
-            if (result == SC_ACKSYNC_WAIT_TIMEOUT) {
-                LOGW("Ack not received after 500ms, discarding HID event");
-                sc_hid_event_destroy(&event);
-                continue;
-            } else if (result == SC_ACKSYNC_WAIT_INTR) {
-                // stopped
-                sc_hid_event_destroy(&event);
                 break;
             }
         }
 
+        sc_mutex_unlock(&aoa->mutex);
+
         bool ok = sc_aoa_send_hid_event(aoa, &event);
         sc_hid_event_destroy(&event);
         if (!ok) {
@@ -386,8 +377,6 @@ sc_aoa_stop(struct sc_aoa *aoa) {
     aoa->stopped = true;
     sc_cond_signal(&aoa->event_cond);
     sc_mutex_unlock(&aoa->mutex);
-
-    sc_acksync_interrupt(aoa->acksync);
 }
 
 void

app/src/aoa_hid.h

@@ -6,7 +6,6 @@
 
 #include <libusb-1.0/libusb.h>
 
-#include "util/acksync.h"
 #include "util/cbuf.h"
 #include "util/thread.h"
 #include "util/tick.h"
@@ -15,7 +14,7 @@ struct sc_hid_event {
     uint16_t accessory_id;
     unsigned char *buffer;
     uint16_t size;
-    uint64_t ack_to_wait;
+    sc_tick delay;
 };
 
 // Takes ownership of buffer
@@ -37,12 +36,10 @@ struct sc_aoa {
     sc_cond event_cond;
     bool stopped;
     struct sc_hid_event_queue queue;
-
-    struct sc_acksync *acksync;
 };
 
 bool
-sc_aoa_init(struct sc_aoa *aoa, const char *serial, struct sc_acksync *acksync);
+sc_aoa_init(struct sc_aoa *aoa, const char *serial);
 
 void
 sc_aoa_destroy(struct sc_aoa *aoa);

app/src/clock.h

@@ -26,7 +26,7 @@ struct sc_clock_point {
  * array.
  *
  * To estimate the slope, it splits the last SC_CLOCK_RANGE points into two
- * sets of SC_CLOCK_RANGE/2 points, and computes their centroid ("average
+ * sets of SC_CLOCK_RANGE/2 points, and compute their centroid ("average
  * point"). The slope of the estimated affine function is that of the line
  * passing through these two points.
  *

app/src/compat.h

@@ -1,17 +1,16 @@
 #ifndef COMPAT_H
 #define COMPAT_H
 
-#include "config.h"
+#define _POSIX_C_SOURCE 200809L
+#define _XOPEN_SOURCE 700
+#define _GNU_SOURCE
+#ifdef __APPLE__
+# define _DARWIN_C_SOURCE
+#endif
 
 #include <libavformat/version.h>
 #include <SDL2/SDL_version.h>
 
-#ifndef __WIN32
-# define PRIu64_ PRIu64
-#else
-# define PRIu64_ "I64u"  // Windows...
-#endif
-
 // In ffmpeg/doc/APIchanges:
 // 2018-02-06 - 0694d87024 - lavf 58.9.100 - avformat.h
 //   Deprecate use of av_register_input_format(), av_register_output_format(),
@@ -44,11 +43,6 @@
 # define SCRCPY_SDL_HAS_WINDOW_ALWAYS_ON_TOP
 #endif
 
-#if SDL_VERSION_ATLEAST(2, 0, 6)
-// <https://github.com/libsdl-org/SDL/commit/d7a318de563125e5bb465b1000d6bc9576fbc6fc>
-# define SCRCPY_SDL_HAS_HINT_TOUCH_MOUSE_EVENTS
-#endif
-
 #if SDL_VERSION_ATLEAST(2, 0, 8)
 // <https://hg.libsdl.org/SDL/rev/dfde5d3f9781>
 # define SCRCPY_SDL_HAS_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR

app/src/control_msg.c

@@ -7,7 +7,7 @@
 
 #include "util/buffer_util.h"
 #include "util/log.h"
-#include "util/str.h"
+#include "util/str_util.h"
 
 /**
  * Map an enum value to a string based on an array, without crashing on an
@@ -56,7 +56,7 @@ static const char *const screen_power_mode_labels[] = {
 };
 
 static void
-write_position(uint8_t *buf, const struct sc_position *position) {
+write_position(uint8_t *buf, const struct position *position) {
     buffer_write32be(&buf[0], position->point.x);
     buffer_write32be(&buf[4], position->point.y);
     buffer_write16be(&buf[8], position->screen_size.width);
@@ -66,7 +66,7 @@ write_position(uint8_t *buf, const struct sc_position *position) {
 // write length (2 bytes) + string (non nul-terminated)
 static size_t
 write_string(const char *utf8, size_t max_len, unsigned char *buf) {
-    size_t len = sc_str_utf8_truncation_index(utf8, max_len);
+    size_t len = utf8_truncation_index(utf8, max_len);
     buffer_write32be(buf, len);
     memcpy(&buf[4], utf8, len);
     return 4 + len;
@@ -118,12 +118,11 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
             buf[1] = msg->inject_keycode.action;
             return 2;
         case CONTROL_MSG_TYPE_SET_CLIPBOARD: {
-            buffer_write64be(&buf[1], msg->set_clipboard.sequence);
+            buf[1] = !!msg->set_clipboard.paste;
-            buf[9] = !!msg->set_clipboard.paste;
             size_t len = write_string(msg->set_clipboard.text,
                                       CONTROL_MSG_CLIPBOARD_TEXT_MAX_LENGTH,
-                                      &buf[10]);
+                                      &buf[2]);
-            return 10 + len;
+            return 2 + len;
         }
         case CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE:
             buf[1] = msg->set_screen_power_mode.mode;
@@ -171,6 +170,11 @@ control_msg_log(const struct control_msg *msg) {
                          (long) msg->inject_touch_event.buttons);
             } else {
                 // numeric pointer id
+#ifndef __WIN32
+# define PRIu64_ PRIu64
+#else
+# define PRIu64_ "I64u"  // Windows...
+#endif
                 LOG_CMSG("touch [id=%" PRIu64_ "] %-4s position=%" PRIi32 ",%"
                              PRIi32 " pressure=%g buttons=%06lx",
                          id,
@@ -195,8 +199,7 @@ control_msg_log(const struct control_msg *msg) {
                      KEYEVENT_ACTION_LABEL(msg->inject_keycode.action));
             break;
         case CONTROL_MSG_TYPE_SET_CLIPBOARD:
-            LOG_CMSG("clipboard %" PRIu64_ " %s \"%s\"",
+            LOG_CMSG("clipboard %s \"%s\"",
-                     msg->set_clipboard.sequence,
                      msg->set_clipboard.paste ? "paste" : "copy",
                      msg->set_clipboard.text);
             break;

app/src/control_msg.h

@@ -57,11 +57,11 @@ struct control_msg {
             enum android_motionevent_action action;
             enum android_motionevent_buttons buttons;
             uint64_t pointer_id;
-            struct sc_position position;
+            struct position position;
             float pressure;
         } inject_touch_event;
         struct {
-            struct sc_position position;
+            struct position position;
             int32_t hscroll;
             int32_t vscroll;
         } inject_scroll_event;
@@ -70,7 +70,6 @@ struct control_msg {
             // screen may only be turned on on ACTION_DOWN
         } back_or_screen_on;
         struct {
-            uint64_t sequence;
             char *text; // owned, to be freed by free()
             bool paste;
         } set_clipboard;

app/src/controller.c

@@ -5,11 +5,10 @@
 #include "util/log.h"
 
 bool
-controller_init(struct controller *controller, sc_socket control_socket,
+controller_init(struct controller *controller, sc_socket control_socket) {
-                struct sc_acksync *acksync) {
     cbuf_init(&controller->queue);
 
-    bool ok = receiver_init(&controller->receiver, control_socket, acksync);
+    bool ok = receiver_init(&controller->receiver, control_socket);
     if (!ok) {
         return false;
     }

app/src/controller.h

@@ -7,7 +7,6 @@
 
 #include "control_msg.h"
 #include "receiver.h"
-#include "util/acksync.h"
 #include "util/cbuf.h"
 #include "util/net.h"
 #include "util/thread.h"
@@ -25,8 +24,7 @@ struct controller {
 };
 
 bool
-controller_init(struct controller *controller, sc_socket control_socket,
+controller_init(struct controller *controller, sc_socket control_socket);
-                struct sc_acksync *acksync);
 
 void
 controller_destroy(struct controller *controller);

app/src/coords.h

@@ -3,22 +3,22 @@
 
 #include <stdint.h>
 
-struct sc_size {
+struct size {
     uint16_t width;
     uint16_t height;
 };
 
-struct sc_point {
+struct point {
     int32_t x;
     int32_t y;
 };
 
-struct sc_position {
+struct position {
     // The video screen size may be different from the real device screen size,
     // so store to which size the absolute position apply, to scale it
     // accordingly.
-    struct sc_size screen_size;
+    struct size screen_size;
-    struct sc_point point;
+    struct point point;
 };
 
 #endif

app/src/device_msg.c

@@ -1,6 +1,5 @@
 #include "device_msg.h"
 
-#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ -35,11 +34,6 @@ device_msg_deserialize(const unsigned char *buf, size_t len,
             msg->clipboard.text = text;
             return 5 + clipboard_len;
         }
-        case DEVICE_MSG_TYPE_ACK_CLIPBOARD: {
-            uint64_t sequence = buffer_read64be(&buf[1]);
-            msg->ack_clipboard.sequence = sequence;
-            return 9;
-        }
         default:
             LOGW("Unknown device message type: %d", (int) msg->type);
             return -1; // error, we cannot recover

app/src/device_msg.h

@@ -13,7 +13,6 @@
 
 enum device_msg_type {
     DEVICE_MSG_TYPE_CLIPBOARD,
-    DEVICE_MSG_TYPE_ACK_CLIPBOARD,
 };
 
 struct device_msg {
@@ -22,9 +21,6 @@ struct device_msg {
         struct {
             char *text; // owned, to be freed by free()
         } clipboard;
-        struct {
-            uint64_t sequence;
-        } ack_clipboard;
     };
 };
 

app/src/events.h

@@ -1,4 +1,2 @@
-#define EVENT_NEW_FRAME                 SDL_USEREVENT
+#define EVENT_NEW_FRAME       SDL_USEREVENT
-#define EVENT_STREAM_STOPPED           (SDL_USEREVENT + 1)
+#define EVENT_STREAM_STOPPED (SDL_USEREVENT + 1)
-#define EVENT_SERVER_CONNECTION_FAILED (SDL_USEREVENT + 2)
-#define EVENT_SERVER_CONNECTED         (SDL_USEREVENT + 3)

app/src/file_handler.c

@@ -5,7 +5,6 @@
 
 #include "adb.h"
 #include "util/log.h"
-#include "util/process_intr.h"
 
 #define DEFAULT_PUSH_TARGET "/sdcard/Download/"
 
@@ -17,7 +16,6 @@ file_handler_request_destroy(struct file_handler_request *req) {
 bool
 file_handler_init(struct file_handler *file_handler, const char *serial,
                   const char *push_target) {
-    assert(serial);
 
     cbuf_init(&file_handler->queue);
 
@@ -32,26 +30,23 @@ file_handler_init(struct file_handler *file_handler, const char *serial,
         return false;
     }
 
-    ok = sc_intr_init(&file_handler->intr);
+    if (serial) {
-    if (!ok) {
+        file_handler->serial = strdup(serial);
-        LOGE("Could not create intr");
+        if (!file_handler->serial) {
-        sc_cond_destroy(&file_handler->event_cond);
+            LOGW("Could not strdup serial");
-        sc_mutex_destroy(&file_handler->mutex);
+            sc_cond_destroy(&file_handler->event_cond);
-    }
+            sc_mutex_destroy(&file_handler->mutex);
-
+            return false;
-    file_handler->serial = strdup(serial);
+        }
-    if (!file_handler->serial) {
+    } else {
-        LOGE("Could not strdup serial");
+        file_handler->serial = NULL;
-        sc_intr_destroy(&file_handler->intr);
-        sc_cond_destroy(&file_handler->event_cond);
-        sc_mutex_destroy(&file_handler->mutex);
-        return false;
     }
 
     // lazy initialization
     file_handler->initialized = false;
 
     file_handler->stopped = false;
+    file_handler->current_process = PROCESS_NONE;
 
     file_handler->push_target = push_target ? push_target : DEFAULT_PUSH_TARGET;
 
@@ -62,7 +57,6 @@ void
 file_handler_destroy(struct file_handler *file_handler) {
     sc_cond_destroy(&file_handler->event_cond);
     sc_mutex_destroy(&file_handler->mutex);
-    sc_intr_destroy(&file_handler->intr);
     free(file_handler->serial);
 
     struct file_handler_request req;
@@ -71,6 +65,16 @@ file_handler_destroy(struct file_handler *file_handler) {
     }
 }
 
+static process_t
+install_apk(const char *serial, const char *file) {
+    return adb_install(serial, file);
+}
+
+static process_t
+push_file(const char *serial, const char *file, const char *push_target) {
+    return adb_push(serial, file, push_target);
+}
+
 bool
 file_handler_request(struct file_handler *file_handler,
                      file_handler_action_t action, char *file) {
@@ -102,16 +106,10 @@ file_handler_request(struct file_handler *file_handler,
 static int
 run_file_handler(void *data) {
     struct file_handler *file_handler = data;
-    struct sc_intr *intr = &file_handler->intr;
-
-    const char *serial = file_handler->serial;
-    assert(serial);
-
-    const char *push_target = file_handler->push_target;
-    assert(push_target);
 
     for (;;) {
         sc_mutex_lock(&file_handler->mutex);
+        file_handler->current_process = PROCESS_NONE;
         while (!file_handler->stopped && cbuf_is_empty(&file_handler->queue)) {
             sc_cond_wait(&file_handler->event_cond, &file_handler->mutex);
         }
@@ -124,26 +122,43 @@ run_file_handler(void *data) {
         bool non_empty = cbuf_take(&file_handler->queue, &req);
         assert(non_empty);
         (void) non_empty;
+
+        process_t process;
+        if (req.action == ACTION_INSTALL_APK) {
+            LOGI("Installing %s...", req.file);
+            process = install_apk(file_handler->serial, req.file);
+        } else {
+            LOGI("Pushing %s...", req.file);
+            process = push_file(file_handler->serial, req.file,
+                                file_handler->push_target);
+        }
+        file_handler->current_process = process;
         sc_mutex_unlock(&file_handler->mutex);
 
         if (req.action == ACTION_INSTALL_APK) {
-            LOGI("Installing %s...", req.file);
+            if (process_check_success(process, "adb install", false)) {
-            bool ok = adb_install(intr, serial, req.file);
-            if (ok) {
                 LOGI("%s successfully installed", req.file);
             } else {
                 LOGE("Failed to install %s", req.file);
             }
         } else {
-            LOGI("Pushing %s...", req.file);
+            if (process_check_success(process, "adb push", false)) {
-            bool ok = adb_push(intr, serial, req.file, push_target);
+                LOGI("%s successfully pushed to %s", req.file,
-            if (ok) {
+                                                     file_handler->push_target);
-                LOGI("%s successfully pushed to %s", req.file, push_target);
             } else {
-                LOGE("Failed to push %s to %s", req.file, push_target);
+                LOGE("Failed to push %s to %s", req.file,
+                                                file_handler->push_target);
             }
         }
 
+        sc_mutex_lock(&file_handler->mutex);
+        // Close the process (it is necessary already terminated)
+        // Execute this call with mutex locked to avoid race conditions with
+        // file_handler_stop()
+        process_close(file_handler->current_process);
+        file_handler->current_process = PROCESS_NONE;
+        sc_mutex_unlock(&file_handler->mutex);
+
         file_handler_request_destroy(&req);
     }
     return 0;
@@ -168,7 +183,11 @@ file_handler_stop(struct file_handler *file_handler) {
     sc_mutex_lock(&file_handler->mutex);
     file_handler->stopped = true;
     sc_cond_signal(&file_handler->event_cond);
-    sc_intr_interrupt(&file_handler->intr);
+    if (file_handler->current_process != PROCESS_NONE) {
+        if (!process_terminate(file_handler->current_process)) {
+            LOGW("Could not terminate push/install process");
+        }
+    }
     sc_mutex_unlock(&file_handler->mutex);
 }
 

app/src/file_handler.h

@@ -8,7 +8,6 @@
 #include "adb.h"
 #include "util/cbuf.h"
 #include "util/thread.h"
-#include "util/intr.h"
 
 typedef enum {
     ACTION_INSTALL_APK,
@@ -30,9 +29,8 @@ struct file_handler {
     sc_cond event_cond;
     bool stopped;
     bool initialized;
+    process_t current_process;
     struct file_handler_request_queue queue;
-
-    struct sc_intr intr;
 };
 
 bool

app/src/hid_keyboard.c

@@ -278,8 +278,7 @@ push_mod_lock_state(struct sc_hid_keyboard *kb, uint16_t sdl_mod) {
 
 static void
 sc_key_processor_process_key(struct sc_key_processor *kp,
-                             const SDL_KeyboardEvent *event,
+                             const SDL_KeyboardEvent *event) {
-                             uint64_t ack_to_wait) {
     if (event->repeat) {
         // In USB HID protocol, key repeat is handled by the host (Android), so
         // just ignore key repeat here.
@@ -299,12 +298,16 @@ sc_key_processor_process_key(struct sc_key_processor *kp,
             }
         }
 
-        if (ack_to_wait) {
+        SDL_Keycode keycode = event->keysym.sym;
+        bool down = event->type == SDL_KEYDOWN;
+        bool ctrl = event->keysym.mod & KMOD_CTRL;
+        bool shift = event->keysym.mod & KMOD_SHIFT;
+        if (ctrl && !shift && keycode == SDLK_v && down) {
             // Ctrl+v is pressed, so clipboard synchronization has been
-            // requested. Wait until clipboard synchronization is acknowledged
+            // requested. Wait a bit so that the clipboard is set before
-            // by the server, otherwise it could paste the old clipboard
+            // injecting Ctrl+v via HID, otherwise it would paste the old
-            // content.
+            // clipboard content.
-            hid_event.ack_to_wait = ack_to_wait;
+            hid_event.delay = SC_TICK_FROM_MS(2);
         }
 
         if (!sc_aoa_push_hid_event(kb->aoa, &hid_event)) {
@@ -345,10 +348,6 @@ sc_hid_keyboard_init(struct sc_hid_keyboard *kb, struct sc_aoa *aoa) {
         .process_text = sc_key_processor_process_text,
     };
 
-    // Clipboard synchronization is requested over the control socket, while HID
-    // events are sent over AOA, so it must wait for clipboard synchronization
-    // to be acknowledged by the device before injecting Ctrl+v.
-    kb->key_processor.async_paste = true;
     kb->key_processor.ops = &ops;
 
     return true;

app/src/icon.c

@@ -8,9 +8,9 @@
 
 #include "config.h"
 #include "compat.h"
-#include "util/file.h"
 #include "util/log.h"
-#include "util/str.h"
+#include "util/process.h"
+#include "util/str_util.h"
 
 #define SCRCPY_PORTABLE_ICON_FILENAME "icon.png"
 #define SCRCPY_DEFAULT_ICON_PATH \
@@ -26,7 +26,7 @@ get_icon_path(void) {
     if (icon_path_env) {
         // if the envvar is set, use it
 #ifdef __WINDOWS__
-        char *icon_path = sc_str_from_wchars(icon_path_env);
+        char *icon_path = utf8_from_wide_char(icon_path_env);
 #else
         char *icon_path = strdup(icon_path_env);
 #endif
@@ -46,7 +46,7 @@ get_icon_path(void) {
         return NULL;
     }
 #else
-    char *icon_path = sc_file_get_local_path(SCRCPY_PORTABLE_ICON_FILENAME);
+    char *icon_path = get_local_file_path(SCRCPY_PORTABLE_ICON_FILENAME);
     if (!icon_path) {
         LOGE("Could not get icon path");
         return NULL;
@@ -158,12 +158,6 @@ free_ctx:
     return result;
 }
 
-#if !SDL_VERSION_ATLEAST(2, 0, 10)
-// SDL_PixelFormatEnum has been introduced in SDL 2.0.10. Use int for older SDL
-// versions.
-typedef int SDL_PixelFormatEnum;
-#endif
-
 static SDL_PixelFormatEnum
 to_sdl_pixel_format(enum AVPixelFormat fmt) {
     switch (fmt) {
@@ -178,9 +172,7 @@ to_sdl_pixel_format(enum AVPixelFormat fmt) {
         case AV_PIX_FMT_BGR565BE: return SDL_PIXELFORMAT_BGR565;
         case AV_PIX_FMT_BGR555BE: return SDL_PIXELFORMAT_BGR555;
         case AV_PIX_FMT_RGB444BE: return SDL_PIXELFORMAT_RGB444;
-#if SDL_VERSION_ATLEAST(2, 0, 12)
         case AV_PIX_FMT_BGR444BE: return SDL_PIXELFORMAT_BGR444;
-#endif
         case AV_PIX_FMT_PAL8: return SDL_PIXELFORMAT_INDEX8;
         default: return SDL_PIXELFORMAT_UNKNOWN;
     }

app/src/input_manager.c

@@ -82,8 +82,6 @@ input_manager_init(struct input_manager *im, struct controller *controller,
     im->last_keycode = SDLK_UNKNOWN;
     im->last_mod = 0;
     im->key_repeat = 0;
-
-    im->next_sequence = 1; // 0 is reserved for SC_SEQUENCE_INVALID
 }
 
 static void
@@ -210,35 +208,35 @@ collapse_panels(struct controller *controller) {
     }
 }
 
-static bool
+static void
-set_device_clipboard(struct controller *controller, bool paste,
+set_device_clipboard(struct controller *controller, bool paste) {
-                     uint64_t sequence) {
     char *text = SDL_GetClipboardText();
     if (!text) {
         LOGW("Could not get clipboard text: %s", SDL_GetError());
-        return false;
+        return;
+    }
+    if (!*text) {
+        // empty text
+        SDL_free(text);
+        return;
     }
 
     char *text_dup = strdup(text);
     SDL_free(text);
     if (!text_dup) {
         LOGW("Could not strdup input text");
-        return false;
+        return;
     }
 
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_SET_CLIPBOARD;
-    msg.set_clipboard.sequence = sequence;
     msg.set_clipboard.text = text_dup;
     msg.set_clipboard.paste = paste;
 
     if (!controller_push_msg(controller, &msg)) {
         free(text_dup);
         LOGW("Could not request 'set device clipboard'");
-        return false;
     }
-
-    return true;
 }
 
 static void
@@ -334,7 +332,7 @@ input_manager_process_text_input(struct input_manager *im,
 static bool
 simulate_virtual_finger(struct input_manager *im,
                         enum android_motionevent_action action,
-                        struct sc_point point) {
+                        struct point point) {
     bool up = action == AMOTION_EVENT_ACTION_UP;
 
     struct control_msg msg;
@@ -354,8 +352,8 @@ simulate_virtual_finger(struct input_manager *im,
     return true;
 }
 
-static struct sc_point
+static struct point
-inverse_point(struct sc_point point, struct sc_size size) {
+inverse_point(struct point point, struct size size) {
     point.x = size.width - point.x;
     point.y = size.height - point.y;
     return point;
@@ -464,10 +462,8 @@ input_manager_process_key(struct input_manager *im,
                         // inject the text as input events
                         clipboard_paste(controller);
                     } else {
-                        // store the text in the device clipboard and paste,
+                        // store the text in the device clipboard and paste
-                        // without requesting an acknowledgment
+                        set_device_clipboard(controller, true);
-                        set_device_clipboard(controller, true,
-                                             SC_SEQUENCE_INVALID);
                     }
                 }
                 return;
@@ -516,36 +512,18 @@ input_manager_process_key(struct input_manager *im,
         return;
     }
 
-    uint64_t ack_to_wait = SC_SEQUENCE_INVALID;
+    if (ctrl && !shift && keycode == SDLK_v && down && !repeat) {
-    bool is_ctrl_v = ctrl && !shift && keycode == SDLK_v && down && !repeat;
-    if (is_ctrl_v) {
         if (im->legacy_paste) {
             // inject the text as input events
             clipboard_paste(controller);
             return;
         }
-
-        // Request an acknowledgement only if necessary
-        uint64_t sequence = im->kp->async_paste ? im->next_sequence
-                                                : SC_SEQUENCE_INVALID;
-
         // Synchronize the computer clipboard to the device clipboard before
         // sending Ctrl+v, to allow seamless copy-paste.
-        bool ok = set_device_clipboard(controller, false, sequence);
+        set_device_clipboard(controller, false);
-        if (!ok) {
-            LOGW("Clipboard could not be synchronized, Ctrl+v not injected");
-            return;
-        }
-
-        if (im->kp->async_paste) {
-            // The key processor must wait for this ack before injecting Ctrl+v
-            ack_to_wait = sequence;
-            // Increment only when the request succeeded
-            ++im->next_sequence;
-        }
     }
 
-    im->kp->ops->process_key(im->kp, event, ack_to_wait);
+    im->kp->ops->process_key(im->kp, event);
 }
 
 static void
@@ -567,10 +545,10 @@ input_manager_process_mouse_motion(struct input_manager *im,
     im->mp->ops->process_mouse_motion(im->mp, event);
 
     if (im->vfinger_down) {
-        struct sc_point mouse =
+        struct point mouse =
             screen_convert_window_to_frame_coords(im->screen, event->x,
                                                   event->y);
-        struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size);
+        struct point vfinger = inverse_point(mouse, im->screen->frame_size);
         simulate_virtual_finger(im, AMOTION_EVENT_ACTION_MOVE, vfinger);
     }
 }
@@ -652,10 +630,10 @@ input_manager_process_mouse_button(struct input_manager *im,
 #define CTRL_PRESSED (SDL_GetModState() & (KMOD_LCTRL | KMOD_RCTRL))
     if ((down && !im->vfinger_down && CTRL_PRESSED)
             || (!down && im->vfinger_down)) {
-        struct sc_point mouse =
+        struct point mouse =
             screen_convert_window_to_frame_coords(im->screen, event->x,
                                                               event->y);
-        struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size);
+        struct point vfinger = inverse_point(mouse, im->screen->frame_size);
         enum android_motionevent_action action = down
                                                ? AMOTION_EVENT_ACTION_DOWN
                                                : AMOTION_EVENT_ACTION_UP;

app/src/input_manager.h

@@ -38,8 +38,6 @@ struct input_manager {
     unsigned key_repeat;
     SDL_Keycode last_keycode;
     uint16_t last_mod;
-
-    uint64_t next_sequence; // used for request acknowledgements
 };
 
 void

app/src/keyboard_inject.c

@@ -188,13 +188,7 @@ convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to,
 
 static void
 sc_key_processor_process_key(struct sc_key_processor *kp,
-                             const SDL_KeyboardEvent *event,
+                             const SDL_KeyboardEvent *event) {
-                             uint64_t ack_to_wait) {
-    // The device clipboard synchronization and the key event messages are
-    // serialized, there is nothing special to do to ensure that the clipboard
-    // is set before injecting Ctrl+v.
-    (void) ack_to_wait;
-
     struct sc_keyboard_inject *ki = DOWNCAST(kp);
 
     if (event->repeat) {
@@ -256,7 +250,5 @@ sc_keyboard_inject_init(struct sc_keyboard_inject *ki,
         .process_text = sc_key_processor_process_text,
     };
 
-    // Key injection and clipboard synchronization are serialized
-    ki->key_processor.async_paste = false;
     ki->key_processor.ops = &ops;
 }

app/src/main.c

@@ -47,9 +47,6 @@ main(int argc, char *argv[]) {
     setbuf(stderr, NULL);
 #endif
 
-    printf("scrcpy " SCRCPY_VERSION
-           " <https://github.com/Genymobile/scrcpy>\n");
-
     struct scrcpy_cli_args args = {
         .opts = scrcpy_options_default,
         .help = false,
@@ -76,6 +73,8 @@ main(int argc, char *argv[]) {
         return 0;
     }
 
+    LOGI("scrcpy " SCRCPY_VERSION " <https://github.com/Genymobile/scrcpy>");
+
 #ifdef SCRCPY_LAVF_REQUIRES_REGISTER_ALL
     av_register_all();
 #endif

app/src/mouse_inject.c

@@ -125,7 +125,7 @@ convert_mouse_wheel(const SDL_MouseWheelEvent *from, struct screen *screen,
     int mouse_y;
     SDL_GetMouseState(&mouse_x, &mouse_y);
 
-    struct sc_position position = {
+    struct position position = {
         .screen_size = screen->frame_size,
         .point = screen_convert_window_to_frame_coords(screen,
                                                        mouse_x, mouse_y),

app/src/options.c

@@ -19,8 +19,6 @@ const struct scrcpy_options scrcpy_options_default = {
         .first = DEFAULT_LOCAL_PORT_RANGE_FIRST,
         .last = DEFAULT_LOCAL_PORT_RANGE_LAST,
     },
-    .tunnel_host = 0,
-    .tunnel_port = 0,
     .shortcut_mods = {
         .data = {SC_MOD_LALT, SC_MOD_LSUPER},
         .count = 2,

app/src/options.h

@@ -77,8 +77,6 @@ struct scrcpy_options {
     enum sc_record_format record_format;
     enum sc_keyboard_input_mode keyboard_input_mode;
     struct sc_port_range port_range;
-    uint32_t tunnel_host;
-    uint16_t tunnel_port;
     struct sc_shortcut_mods shortcut_mods;
     uint16_t max_size;
     uint32_t bit_rate;

app/src/receiver.c

@@ -7,16 +7,12 @@
 #include "util/log.h"
 
 bool
-receiver_init(struct receiver *receiver, sc_socket control_socket,
+receiver_init(struct receiver *receiver, sc_socket control_socket) {
-              struct sc_acksync *acksync) {
     bool ok = sc_mutex_init(&receiver->mutex);
     if (!ok) {
         return false;
     }
-
     receiver->control_socket = control_socket;
-    receiver->acksync = acksync;
-
     return true;
 }
 
@@ -26,7 +22,7 @@ receiver_destroy(struct receiver *receiver) {
 }
 
 static void
-process_msg(struct receiver *receiver, struct device_msg *msg) {
+process_msg(struct device_msg *msg) {
     switch (msg->type) {
         case DEVICE_MSG_TYPE_CLIPBOARD: {
             char *current = SDL_GetClipboardText();
@@ -41,17 +37,11 @@ process_msg(struct receiver *receiver, struct device_msg *msg) {
             SDL_SetClipboardText(msg->clipboard.text);
             break;
         }
-        case DEVICE_MSG_TYPE_ACK_CLIPBOARD:
-            assert(receiver->acksync);
-            LOGD("Ack device clipboard sequence=%" PRIu64_,
-                 msg->ack_clipboard.sequence);
-            sc_acksync_ack(receiver->acksync, msg->ack_clipboard.sequence);
-            break;
     }
 }
 
 static ssize_t
-process_msgs(struct receiver *receiver, const unsigned char *buf, size_t len) {
+process_msgs(const unsigned char *buf, size_t len) {
     size_t head = 0;
     for (;;) {
         struct device_msg msg;
@@ -63,7 +53,7 @@ process_msgs(struct receiver *receiver, const unsigned char *buf, size_t len) {
             return head;
         }
 
-        process_msg(receiver, &msg);
+        process_msg(&msg);
         device_msg_destroy(&msg);
 
         head += r;
@@ -91,7 +81,7 @@ run_receiver(void *data) {
         }
 
         head += r;
-        ssize_t consumed = process_msgs(receiver, buf, head);
+        ssize_t consumed = process_msgs(buf, head);
         if (consumed == -1) {
             // an error occurred
             break;

app/src/receiver.h

@@ -5,7 +5,6 @@
 
 #include <stdbool.h>
 
-#include "util/acksync.h"
 #include "util/net.h"
 #include "util/thread.h"
 
@@ -15,13 +14,10 @@ struct receiver {
     sc_socket control_socket;
     sc_thread thread;
     sc_mutex mutex;
-
-    struct sc_acksync *acksync;
 };
 
 bool
-receiver_init(struct receiver *receiver, sc_socket control_socket,
+receiver_init(struct receiver *receiver, sc_socket control_socket);
-              struct sc_acksync *acksync);
 
 void
 receiver_destroy(struct receiver *receiver);

app/src/recorder.c

@@ -6,7 +6,7 @@
 #include <libavutil/time.h>
 
 #include "util/log.h"
-#include "util/str.h"
+#include "util/str_util.h"
 
 /** Downcast packet_sink to recorder */
 #define DOWNCAST(SINK) container_of(SINK, struct recorder, packet_sink)
@@ -26,7 +26,7 @@ find_muxer(const char *name) {
         oformat = av_oformat_next(oformat);
 #endif
         // until null or containing the requested name
-    } while (oformat && !sc_str_list_contains(oformat->name, ',', name));
+    } while (oformat && !strlist_contains(oformat->name, ',', name));
     return oformat;
 }
 
@@ -372,7 +372,7 @@ bool
 recorder_init(struct recorder *recorder,
               const char *filename,
               enum sc_record_format format,
-              struct sc_size declared_frame_size) {
+              struct size declared_frame_size) {
     recorder->filename = strdup(filename);
     if (!recorder->filename) {
         LOGE("Could not strdup filename");

app/src/recorder.h

@@ -25,7 +25,7 @@ struct recorder {
     char *filename;
     enum sc_record_format format;
     AVFormatContext *ctx;
-    struct sc_size declared_frame_size;
+    struct size declared_frame_size;
     bool header_written;
 
     sc_thread thread;
@@ -44,7 +44,7 @@ struct recorder {
 
 bool
 recorder_init(struct recorder *recorder, const char *filename,
-              enum sc_record_format format, struct sc_size declared_frame_size);
+              enum sc_record_format format, struct size declared_frame_size);
 
 void
 recorder_destroy(struct recorder *recorder);

app/src/scrcpy.c

@@ -27,7 +27,6 @@
 #include "screen.h"
 #include "server.h"
 #include "stream.h"
-#include "util/acksync.h"
 #include "util/log.h"
 #include "util/net.h"
 #ifdef HAVE_V4L2
@@ -35,7 +34,7 @@
 #endif
 
 struct scrcpy {
-    struct sc_server server;
+    struct server server;
     struct screen screen;
     struct stream stream;
     struct decoder decoder;
@@ -47,8 +46,6 @@ struct scrcpy {
     struct file_handler file_handler;
 #ifdef HAVE_AOA_HID
     struct sc_aoa aoa;
-    // sequence/ack helper to synchronize clipboard and Ctrl+v via HID
-    struct sc_acksync acksync;
 #endif
     union {
         struct sc_keyboard_inject keyboard_inject;
@@ -60,30 +57,41 @@ struct scrcpy {
     struct input_manager input_manager;
 };
 
-static inline void
-push_event(uint32_t type, const char *name) {
-    SDL_Event event;
-    event.type = type;
-    int ret = SDL_PushEvent(&event);
-    if (ret < 0) {
-        LOGE("Could not post %s event: %s", name, SDL_GetError());
-        // What could we do?
-    }
-}
-#define PUSH_EVENT(TYPE) push_event(TYPE, # TYPE)
-
 #ifdef _WIN32
 BOOL WINAPI windows_ctrl_handler(DWORD ctrl_type) {
     if (ctrl_type == CTRL_C_EVENT) {
-        PUSH_EVENT(SDL_QUIT);
+        SDL_Event event;
+        event.type = SDL_QUIT;
+        SDL_PushEvent(&event);
         return TRUE;
     }
     return FALSE;
 }
 #endif // _WIN32
 
-static void
+// init SDL and set appropriate hints
-sdl_set_hints(const char *render_driver) {
+static bool
+sdl_init_and_configure(bool display, const char *render_driver,
+                       bool disable_screensaver) {
+    uint32_t flags = display ? SDL_INIT_VIDEO : SDL_INIT_EVENTS;
+    if (SDL_Init(flags)) {
+        LOGC("Could not initialize SDL: %s", SDL_GetError());
+        return false;
+    }
+
+    atexit(SDL_Quit);
+
+#ifdef _WIN32
+    // Clean up properly on Ctrl+C on Windows
+    bool ok = SetConsoleCtrlHandler(windows_ctrl_handler, TRUE);
+    if (!ok) {
+        LOGW("Could not set Ctrl+C handler");
+    }
+#endif // _WIN32
+
+    if (!display) {
+        return true;
+    }
 
     if (render_driver && !SDL_SetHint(SDL_HINT_RENDER_DRIVER, render_driver)) {
         LOGW("Could not set render driver");
@@ -101,15 +109,6 @@ sdl_set_hints(const char *render_driver) {
     }
 #endif
 
-#ifdef SCRCPY_SDL_HAS_HINT_TOUCH_MOUSE_EVENTS
-    // Disable synthetic mouse events from touch events
-    // Touch events with id SDL_TOUCH_MOUSEID are ignored anyway, but it is
-    // better not to generate them in the first place.
-    if (!SDL_SetHint(SDL_HINT_TOUCH_MOUSE_EVENTS, "0")) {
-        LOGW("Could not disable synthetic mouse events");
-    }
-#endif
-
 #ifdef SCRCPY_SDL_HAS_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR
     // Disable compositor bypassing on X11
     if (!SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0")) {
@@ -121,21 +120,6 @@ sdl_set_hints(const char *render_driver) {
     if (!SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, "0")) {
         LOGW("Could not disable minimize on focus loss");
     }
-}
-
-static void
-sdl_configure(bool display, bool disable_screensaver) {
-#ifdef _WIN32
-    // Clean up properly on Ctrl+C on Windows
-    bool ok = SetConsoleCtrlHandler(windows_ctrl_handler, TRUE);
-    if (!ok) {
-        LOGW("Could not set Ctrl+C handler");
-    }
-#endif // _WIN32
-
-    if (!display) {
-        return;
-    }
 
     if (disable_screensaver) {
         LOGD("Screensaver disabled");
@@ -144,6 +128,8 @@ sdl_configure(bool display, bool disable_screensaver) {
         LOGD("Screensaver enabled");
         SDL_EnableScreenSaver();
     }
+
+    return true;
 }
 
 static bool
@@ -220,29 +206,6 @@ event_loop(struct scrcpy *s, const struct scrcpy_options *options) {
     return false;
 }
 
-static bool
-await_for_server(void) {
-    SDL_Event event;
-    while (SDL_WaitEvent(&event)) {
-        switch (event.type) {
-            case SDL_QUIT:
-                LOGD("User requested to quit");
-                return false;
-            case EVENT_SERVER_CONNECTION_FAILED:
-                LOGE("Server connection failed");
-                return false;
-            case EVENT_SERVER_CONNECTED:
-                LOGD("Server connected");
-                return true;
-            default:
-                break;
-        }
-    }
-
-    LOGE("SDL_WaitEvent() error: %s", SDL_GetError());
-    return false;
-}
-
 static SDL_LogPriority
 sdl_priority_from_av_level(int level) {
     switch (level) {
@@ -285,33 +248,9 @@ stream_on_eos(struct stream *stream, void *userdata) {
     (void) stream;
     (void) userdata;
 
-    PUSH_EVENT(EVENT_STREAM_STOPPED);
+    SDL_Event stop_event;
-}
+    stop_event.type = EVENT_STREAM_STOPPED;
-
+    SDL_PushEvent(&stop_event);
-static void
-sc_server_on_connection_failed(struct sc_server *server, void *userdata) {
-    (void) server;
-    (void) userdata;
-
-    PUSH_EVENT(EVENT_SERVER_CONNECTION_FAILED);
-}
-
-static void
-sc_server_on_connected(struct sc_server *server, void *userdata) {
-    (void) server;
-    (void) userdata;
-
-    PUSH_EVENT(EVENT_SERVER_CONNECTED);
-}
-
-static void
-sc_server_on_disconnected(struct sc_server *server, void *userdata) {
-    (void) server;
-    (void) userdata;
-
-    LOGD("Server disconnected");
-    // Do nothing, the disconnection will be handled by the "stream stopped"
-    // event
 }
 
 bool
@@ -319,14 +258,6 @@ scrcpy(struct scrcpy_options *options) {
     static struct scrcpy scrcpy;
     struct scrcpy *s = &scrcpy;
 
-    // Minimal SDL initialization
-    if (SDL_Init(SDL_INIT_EVENTS)) {
-        LOGC("Could not initialize SDL: %s", SDL_GetError());
-        return false;
-    }
-
-    atexit(SDL_Quit);
-
     bool ret = false;
 
     bool server_started = false;
@@ -343,15 +274,12 @@ scrcpy(struct scrcpy_options *options) {
     bool controller_started = false;
     bool screen_initialized = false;
 
-    struct sc_acksync *acksync = NULL;
+    bool record = !!options->record_filename;
-
+    struct server_params params = {
-    struct sc_server_params params = {
         .serial = options->serial,
         .log_level = options->log_level,
         .crop = options->crop,
         .port_range = options->port_range,
-        .tunnel_host = options->tunnel_host,
-        .tunnel_port = options->tunnel_port,
         .max_size = options->max_size,
         .bit_rate = options->bit_rate,
         .max_fps = options->max_fps,
@@ -366,46 +294,30 @@ scrcpy(struct scrcpy_options *options) {
         .power_off_on_close = options->power_off_on_close,
     };
 
-    static const struct sc_server_callbacks cbs = {
+    if (!server_init(&s->server, &params)) {
-        .on_connection_failed = sc_server_on_connection_failed,
-        .on_connected = sc_server_on_connected,
-        .on_disconnected = sc_server_on_disconnected,
-    };
-    if (!sc_server_init(&s->server, &params, &cbs, NULL)) {
         return false;
     }
 
-    if (!sc_server_start(&s->server)) {
+    if (!server_start(&s->server)) {
         goto end;
     }
 
     server_started = true;
 
-    if (options->display) {
+    if (!sdl_init_and_configure(options->display, options->render_driver,
-        sdl_set_hints(options->render_driver);
+                                options->disable_screensaver)) {
-    }
-
-    // Initialize SDL video in addition if display is enabled
-    if (options->display && SDL_Init(SDL_INIT_VIDEO)) {
-        LOGC("Could not initialize SDL: %s", SDL_GetError());
         goto end;
     }
 
-    sdl_configure(options->display, options->disable_screensaver);
+    char device_name[DEVICE_NAME_FIELD_LENGTH];
+    struct size frame_size;
 
-    // Await for server without blocking Ctrl+C handling
+    if (!server_connect_to(&s->server, device_name, &frame_size)) {
-    if (!await_for_server()) {
         goto end;
     }
 
-    // It is necessarily initialized here, since the device is connected
-    struct sc_server_info *info = &s->server.info;
-
-    const char *serial = s->server.params.serial;
-    assert(serial);
-
     if (options->display && options->control) {
-        if (!file_handler_init(&s->file_handler, serial,
+        if (!file_handler_init(&s->file_handler, options->serial,
                                options->push_target)) {
             goto end;
         }
@@ -423,11 +335,11 @@ scrcpy(struct scrcpy_options *options) {
     }
 
     struct recorder *rec = NULL;
-    if (options->record_filename) {
+    if (record) {
         if (!recorder_init(&s->recorder,
                            options->record_filename,
                            options->record_format,
-                           info->frame_size)) {
+                           frame_size)) {
             goto end;
         }
         rec = &s->recorder;
@@ -450,18 +362,7 @@ scrcpy(struct scrcpy_options *options) {
     }
 
     if (options->control) {
-#ifdef HAVE_AOA_HID
+        if (!controller_init(&s->controller, s->server.control_socket)) {
-        if (options->keyboard_input_mode == SC_KEYBOARD_INPUT_MODE_HID) {
-            bool ok = sc_acksync_init(&s->acksync);
-            if (!ok) {
-                goto end;
-            }
-
-            acksync = &s->acksync;
-        }
-#endif
-        if (!controller_init(&s->controller, s->server.control_socket,
-                             acksync)) {
             goto end;
         }
         controller_initialized = true;
@@ -484,11 +385,11 @@ scrcpy(struct scrcpy_options *options) {
 
     if (options->display) {
         const char *window_title =
-            options->window_title ? options->window_title : info->device_name;
+            options->window_title ? options->window_title : device_name;
 
         struct screen_params screen_params = {
             .window_title = window_title,
-            .frame_size = info->frame_size,
+            .frame_size = frame_size,
             .always_on_top = options->always_on_top,
             .window_x = options->window_x,
             .window_y = options->window_y,
@@ -511,8 +412,8 @@ scrcpy(struct scrcpy_options *options) {
 
 #ifdef HAVE_V4L2
     if (options->v4l2_device) {
-        if (!sc_v4l2_sink_init(&s->v4l2_sink, options->v4l2_device,
+        if (!sc_v4l2_sink_init(&s->v4l2_sink, options->v4l2_device, frame_size,
-                               info->frame_size, options->v4l2_buffer)) {
+                               options->v4l2_buffer)) {
             goto end;
         }
 
@@ -537,7 +438,21 @@ scrcpy(struct scrcpy_options *options) {
 #ifdef HAVE_AOA_HID
             bool aoa_hid_ok = false;
 
-            bool ok = sc_aoa_init(&s->aoa, serial, acksync);
+            char *serialno = NULL;
+
+            const char *serial = options->serial;
+            if (!serial) {
+                serialno = adb_get_serialno();
+                if (!serialno) {
+                    LOGE("Could not get device serial");
+                    goto aoa_hid_end;
+                }
+                serial = serialno;
+                LOGI("Device serial: %s", serial);
+            }
+
+            bool ok = sc_aoa_init(&s->aoa, serial);
+            free(serialno);
             if (!ok) {
                 goto aoa_hid_end;
             }
@@ -602,9 +517,6 @@ end:
         sc_hid_keyboard_destroy(&s->keyboard_hid);
         sc_aoa_stop(&s->aoa);
     }
-    if (acksync) {
-        sc_acksync_destroy(acksync);
-    }
 #endif
     if (controller_started) {
         controller_stop(&s->controller);
@@ -618,7 +530,7 @@ end:
 
     if (server_started) {
         // shutdown the sockets and kill the server
-        sc_server_stop(&s->server);
+        server_stop(&s->server);
     }
 
     // now that the sockets are shutdown, the stream and controller are
@@ -663,7 +575,7 @@ end:
         file_handler_destroy(&s->file_handler);
     }
 
-    sc_server_destroy(&s->server);
+    server_destroy(&s->server);
 
     return ret;
 }

app/src/screen.c

@@ -14,9 +14,9 @@
 
 #define DOWNCAST(SINK) container_of(SINK, struct screen, frame_sink)
 
-static inline struct sc_size
+static inline struct size
-get_rotated_size(struct sc_size size, int rotation) {
+get_rotated_size(struct size size, int rotation) {
-    struct sc_size rotated_size;
+    struct size rotated_size;
     if (rotation & 1) {
         rotated_size.width = size.height;
         rotated_size.height = size.width;
@@ -27,26 +27,26 @@ get_rotated_size(struct sc_size size, int rotation) {
     return rotated_size;
 }
 
-// get the window size in a struct sc_size
+// get the window size in a struct size
-static struct sc_size
+static struct size
 get_window_size(const struct screen *screen) {
     int width;
     int height;
     SDL_GetWindowSize(screen->window, &width, &height);
 
-    struct sc_size size;
+    struct size size;
     size.width = width;
     size.height = height;
     return size;
 }
 
-static struct sc_point
+static struct point
 get_window_position(const struct screen *screen) {
     int x;
     int y;
     SDL_GetWindowPosition(screen->window, &x, &y);
 
-    struct sc_point point;
+    struct point point;
     point.x = x;
     point.y = y;
     return point;
@@ -54,7 +54,7 @@ get_window_position(const struct screen *screen) {
 
 // set the window size to be applied when fullscreen is disabled
 static void
-set_window_size(struct screen *screen, struct sc_size new_size) {
+set_window_size(struct screen *screen, struct size new_size) {
     assert(!screen->fullscreen);
     assert(!screen->maximized);
     SDL_SetWindowSize(screen->window, new_size.width, new_size.height);
@@ -62,7 +62,7 @@ set_window_size(struct screen *screen, struct sc_size new_size) {
 
 // get the preferred display bounds (i.e. the screen bounds with some margins)
 static bool
-get_preferred_display_bounds(struct sc_size *bounds) {
+get_preferred_display_bounds(struct size *bounds) {
     SDL_Rect rect;
 #ifdef SCRCPY_SDL_HAS_GET_DISPLAY_USABLE_BOUNDS
 # define GET_DISPLAY_BOUNDS(i, r) SDL_GetDisplayUsableBounds((i), (r))
@@ -80,7 +80,7 @@ get_preferred_display_bounds(struct sc_size *bounds) {
 }
 
 static bool
-is_optimal_size(struct sc_size current_size, struct sc_size content_size) {
+is_optimal_size(struct size current_size, struct size content_size) {
     // The size is optimal if we can recompute one dimension of the current
     // size from the other
     return current_size.height == current_size.width * content_size.height
@@ -94,16 +94,16 @@ is_optimal_size(struct sc_size current_size, struct sc_size content_size) {
 //    crops the black borders)
 //  - it keeps the aspect ratio
 //  - it scales down to make it fit in the display_size
-static struct sc_size
+static struct size
-get_optimal_size(struct sc_size current_size, struct sc_size content_size) {
+get_optimal_size(struct size current_size, struct size content_size) {
     if (content_size.width == 0 || content_size.height == 0) {
         // avoid division by 0
         return current_size;
     }
 
-    struct sc_size window_size;
+    struct size window_size;
 
-    struct sc_size display_size;
+    struct size display_size;
     if (!get_preferred_display_bounds(&display_size)) {
         // could not get display bounds, do not constraint the size
         window_size.width = current_size.width;
@@ -135,10 +135,10 @@ get_optimal_size(struct sc_size current_size, struct sc_size content_size) {
 
 // initially, there is no current size, so use the frame size as current size
 // req_width and req_height, if not 0, are the sizes requested by the user
-static inline struct sc_size
+static inline struct size
-get_initial_optimal_size(struct sc_size content_size, uint16_t req_width,
+get_initial_optimal_size(struct size content_size, uint16_t req_width,
                          uint16_t req_height) {
-    struct sc_size window_size;
+    struct size window_size;
     if (!req_width && !req_height) {
         window_size = get_optimal_size(content_size, content_size);
     } else {
@@ -166,9 +166,9 @@ screen_update_content_rect(struct screen *screen) {
     int dh;
     SDL_GL_GetDrawableSize(screen->window, &dw, &dh);
 
-    struct sc_size content_size = screen->content_size;
+    struct size content_size = screen->content_size;
     // The drawable size is the window size * the HiDPI scale
-    struct sc_size drawable_size = {dw, dh};
+    struct size drawable_size = {dw, dh};
 
     SDL_Rect *rect = &screen->rect;
 
@@ -200,7 +200,7 @@ screen_update_content_rect(struct screen *screen) {
 static inline SDL_Texture *
 create_texture(struct screen *screen) {
     SDL_Renderer *renderer = screen->renderer;
-    struct sc_size size = screen->frame_size;
+    struct size size = screen->frame_size;
     SDL_Texture *texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12,
                                              SDL_TEXTUREACCESS_STREAMING,
                                              size.width, size.height);
@@ -224,45 +224,6 @@ create_texture(struct screen *screen) {
     return texture;
 }
 
-// render the texture to the renderer
-//
-// Set the update_content_rect flag if the window or content size may have
-// changed, so that the content rectangle is recomputed
-static void
-screen_render(struct screen *screen, bool update_content_rect) {
-    if (update_content_rect) {
-        screen_update_content_rect(screen);
-    }
-
-    SDL_RenderClear(screen->renderer);
-    if (screen->rotation == 0) {
-        SDL_RenderCopy(screen->renderer, screen->texture, NULL, &screen->rect);
-    } else {
-        // rotation in RenderCopyEx() is clockwise, while screen->rotation is
-        // counterclockwise (to be consistent with --lock-video-orientation)
-        int cw_rotation = (4 - screen->rotation) % 4;
-        double angle = 90 * cw_rotation;
-
-        SDL_Rect *dstrect = NULL;
-        SDL_Rect rect;
-        if (screen->rotation & 1) {
-            rect.x = screen->rect.x + (screen->rect.w - screen->rect.h) / 2;
-            rect.y = screen->rect.y + (screen->rect.h - screen->rect.w) / 2;
-            rect.w = screen->rect.h;
-            rect.h = screen->rect.w;
-            dstrect = ▭
-        } else {
-            assert(screen->rotation == 2);
-            dstrect = &screen->rect;
-        }
-
-        SDL_RenderCopyEx(screen->renderer, screen->texture, NULL, dstrect,
-                         angle, NULL, 0);
-    }
-    SDL_RenderPresent(screen->renderer);
-}
-
-
 #if defined(__APPLE__) || defined(__WINDOWS__)
 # define CONTINUOUS_RESIZING_WORKAROUND
 #endif
@@ -321,33 +282,17 @@ sc_video_buffer_on_new_frame(struct sc_video_buffer *vb, bool previous_skipped,
     (void) vb;
     struct screen *screen = userdata;
 
-    // event_failed implies previous_skipped (the previous frame may not have
-    // been consumed if the event was not sent)
-    assert(!screen->event_failed || previous_skipped);
-
-    bool need_new_event;
     if (previous_skipped) {
         fps_counter_add_skipped_frame(&screen->fps_counter);
         // The EVENT_NEW_FRAME triggered for the previous frame will consume
-        // this new frame instead, unless the previous event failed
+        // this new frame instead
-        need_new_event = screen->event_failed;
     } else {
-        need_new_event = true;
-    }
-
-    if (need_new_event) {
         static SDL_Event new_frame_event = {
             .type = EVENT_NEW_FRAME,
         };
 
         // Post the event on the UI thread
-        int ret = SDL_PushEvent(&new_frame_event);
+        SDL_PushEvent(&new_frame_event);
-        if (ret < 0) {
-            LOGW("Could not post new frame event: %s", SDL_GetError());
-            screen->event_failed = true;
-        } else {
-            screen->event_failed = false;
-        }
     }
 }
 
@@ -357,7 +302,6 @@ screen_init(struct screen *screen, const struct screen_params *params) {
     screen->has_frame = false;
     screen->fullscreen = false;
     screen->maximized = false;
-    screen->event_failed = false;
 
     static const struct sc_video_buffer_callbacks cbs = {
         .on_new_frame = sc_video_buffer_on_new_frame,
@@ -386,13 +330,13 @@ screen_init(struct screen *screen, const struct screen_params *params) {
     if (screen->rotation) {
         LOGI("Initial display rotation set to %u", screen->rotation);
     }
-    struct sc_size content_size =
+    struct size content_size =
         get_rotated_size(screen->frame_size, screen->rotation);
     screen->content_size = content_size;
 
-    struct sc_size window_size =
+    struct size window_size = get_initial_optimal_size(content_size,
-        get_initial_optimal_size(content_size,params->window_width,
+                                                       params->window_width,
-                                 params->window_height);
+                                                       params->window_height);
     uint32_t window_flags = SDL_WINDOW_HIDDEN
                           | SDL_WINDOW_RESIZABLE
                           | SDL_WINDOW_ALLOW_HIGHDPI;
@@ -564,10 +508,10 @@ screen_destroy(struct screen *screen) {
 }
 
 static void
-resize_for_content(struct screen *screen, struct sc_size old_content_size,
+resize_for_content(struct screen *screen, struct size old_content_size,
-                   struct sc_size new_content_size) {
+                                                 struct size new_content_size) {
-    struct sc_size window_size = get_window_size(screen);
+    struct size window_size = get_window_size(screen);
-    struct sc_size target_size = {
+    struct size target_size = {
         .width = (uint32_t) window_size.width * new_content_size.width
                 / old_content_size.width,
         .height = (uint32_t) window_size.height * new_content_size.height
@@ -578,7 +522,7 @@ resize_for_content(struct screen *screen, struct sc_size old_content_size,
 }
 
 static void
-set_content_size(struct screen *screen, struct sc_size new_content_size) {
+set_content_size(struct screen *screen, struct size new_content_size) {
     if (!screen->fullscreen && !screen->maximized) {
         resize_for_content(screen, screen->content_size, new_content_size);
     } else if (!screen->resize_pending) {
@@ -609,7 +553,7 @@ screen_set_rotation(struct screen *screen, unsigned rotation) {
         return;
     }
 
-    struct sc_size new_content_size =
+    struct size new_content_size =
         get_rotated_size(screen->frame_size, rotation);
 
     set_content_size(screen, new_content_size);
@@ -622,7 +566,7 @@ screen_set_rotation(struct screen *screen, unsigned rotation) {
 
 // recreate the texture and resize the window if the frame size has changed
 static bool
-prepare_for_frame(struct screen *screen, struct sc_size new_frame_size) {
+prepare_for_frame(struct screen *screen, struct size new_frame_size) {
     if (screen->frame_size.width != new_frame_size.width
             || screen->frame_size.height != new_frame_size.height) {
         // frame dimension changed, destroy texture
@@ -630,7 +574,7 @@ prepare_for_frame(struct screen *screen, struct sc_size new_frame_size) {
 
         screen->frame_size = new_frame_size;
 
-        struct sc_size new_content_size =
+        struct size new_content_size =
             get_rotated_size(new_frame_size, screen->rotation);
         set_content_size(screen, new_content_size);
 
@@ -671,7 +615,7 @@ screen_update_frame(struct screen *screen) {
 
     fps_counter_add_rendered_frame(&screen->fps_counter);
 
-    struct sc_size new_frame_size = {frame->width, frame->height};
+    struct size new_frame_size = {frame->width, frame->height};
     if (!prepare_for_frame(screen, new_frame_size)) {
         return false;
     }
@@ -681,6 +625,40 @@ screen_update_frame(struct screen *screen) {
     return true;
 }
 
+void
+screen_render(struct screen *screen, bool update_content_rect) {
+    if (update_content_rect) {
+        screen_update_content_rect(screen);
+    }
+
+    SDL_RenderClear(screen->renderer);
+    if (screen->rotation == 0) {
+        SDL_RenderCopy(screen->renderer, screen->texture, NULL, &screen->rect);
+    } else {
+        // rotation in RenderCopyEx() is clockwise, while screen->rotation is
+        // counterclockwise (to be consistent with --lock-video-orientation)
+        int cw_rotation = (4 - screen->rotation) % 4;
+        double angle = 90 * cw_rotation;
+
+        SDL_Rect *dstrect = NULL;
+        SDL_Rect rect;
+        if (screen->rotation & 1) {
+            rect.x = screen->rect.x + (screen->rect.w - screen->rect.h) / 2;
+            rect.y = screen->rect.y + (screen->rect.h - screen->rect.w) / 2;
+            rect.w = screen->rect.h;
+            rect.h = screen->rect.w;
+            dstrect = &rect;
+        } else {
+            assert(screen->rotation == 2);
+            dstrect = &screen->rect;
+        }
+
+        SDL_RenderCopyEx(screen->renderer, screen->texture, NULL, dstrect,
+                         angle, NULL, 0);
+    }
+    SDL_RenderPresent(screen->renderer);
+}
+
 void
 screen_switch_fullscreen(struct screen *screen) {
     uint32_t new_mode = screen->fullscreen ? 0 : SDL_WINDOW_FULLSCREEN_DESKTOP;
@@ -704,10 +682,10 @@ screen_resize_to_fit(struct screen *screen) {
         return;
     }
 
-    struct sc_point point = get_window_position(screen);
+    struct point point = get_window_position(screen);
-    struct sc_size window_size = get_window_size(screen);
+    struct size window_size = get_window_size(screen);
 
-    struct sc_size optimal_size =
+    struct size optimal_size =
         get_optimal_size(window_size, screen->content_size);
 
     // Center the window related to the device screen
@@ -733,7 +711,7 @@ screen_resize_to_pixel_perfect(struct screen *screen) {
         screen->maximized = false;
     }
 
-    struct sc_size content_size = screen->content_size;
+    struct size content_size = screen->content_size;
     SDL_SetWindowSize(screen->window, content_size.width, content_size.height);
     LOGD("Resized to pixel-perfect: %ux%u", content_size.width,
                                             content_size.height);
@@ -788,7 +766,7 @@ screen_handle_event(struct screen *screen, SDL_Event *event) {
     return false;
 }
 
-struct sc_point
+struct point
 screen_convert_drawable_to_frame_coords(struct screen *screen,
                                         int32_t x, int32_t y) {
     unsigned rotation = screen->rotation;
@@ -802,7 +780,7 @@ screen_convert_drawable_to_frame_coords(struct screen *screen,
     y = (int64_t) (y - screen->rect.y) * h / screen->rect.h;
 
     // rotate
-    struct sc_point result;
+    struct point result;
     switch (rotation) {
         case 0:
             result.x = x;
@@ -825,7 +803,7 @@ screen_convert_drawable_to_frame_coords(struct screen *screen,
     return result;
 }
 
-struct sc_point
+struct point
 screen_convert_window_to_frame_coords(struct screen *screen,
                                       int32_t x, int32_t y) {
     screen_hidpi_scale_coords(screen, &x, &y);

app/src/screen.h

@@ -27,13 +27,13 @@ struct screen {
     SDL_Renderer *renderer;
     SDL_Texture *texture;
     struct sc_opengl gl;
-    struct sc_size frame_size;
+    struct size frame_size;
-    struct sc_size content_size; // rotated frame_size
+    struct size content_size; // rotated frame_size
 
     bool resize_pending; // resize requested while fullscreen or maximized
     // The content size the last time the window was not maximized or
     // fullscreen (meaningful only when resize_pending is true)
-    struct sc_size windowed_content_size;
+    struct size windowed_content_size;
 
     // client rotation: 0, 1, 2 or 3 (x90 degrees counterclockwise)
     unsigned rotation;
@@ -44,14 +44,12 @@ struct screen {
     bool maximized;
     bool mipmaps;
 
-    bool event_failed; // in case SDL_PushEvent() returned an error
-
     AVFrame *frame;
 };
 
 struct screen_params {
     const char *window_title;
-    struct sc_size frame_size;
+    struct size frame_size;
     bool always_on_top;
 
     int16_t window_x;
@@ -93,6 +91,13 @@ screen_destroy(struct screen *screen);
 void
 screen_hide_window(struct screen *screen);
 
+// render the texture to the renderer
+//
+// Set the update_content_rect flag if the window or content size may have
+// changed, so that the content rectangle is recomputed
+void
+screen_render(struct screen *screen, bool update_content_rect);
+
 // switch the fullscreen mode
 void
 screen_switch_fullscreen(struct screen *screen);
@@ -115,13 +120,13 @@ screen_handle_event(struct screen *screen, SDL_Event *event);
 
 // convert point from window coordinates to frame coordinates
 // x and y are expressed in pixels
-struct sc_point
+struct point
 screen_convert_window_to_frame_coords(struct screen *screen,
                                       int32_t x, int32_t y);
 
 // convert point from drawable coordinates to frame coordinates
 // x and y are expressed in pixels
-struct sc_point
+struct point
 screen_convert_drawable_to_frame_coords(struct screen *screen,
                                         int32_t x, int32_t y);
 

app/src/server.c

@@ -8,16 +8,15 @@
 #include <SDL2/SDL_platform.h>
 
 #include "adb.h"
-#include "util/file.h"
 #include "util/log.h"
-#include "util/net_intr.h"
+#include "util/net.h"
-#include "util/process_intr.h"
+#include "util/str_util.h"
-#include "util/str.h"
 
-#define SC_SERVER_FILENAME "scrcpy-server"
+#define SOCKET_NAME "scrcpy"
+#define SERVER_FILENAME "scrcpy-server"
 
-#define SC_SERVER_PATH_DEFAULT PREFIX "/share/scrcpy/" SC_SERVER_FILENAME
+#define DEFAULT_SERVER_PATH PREFIX "/share/scrcpy/" SERVER_FILENAME
-#define SC_DEVICE_SERVER_PATH "/data/local/tmp/scrcpy-server.jar"
+#define DEVICE_SERVER_PATH "/data/local/tmp/scrcpy-server.jar"
 
 static char *
 get_server_path(void) {
@@ -29,7 +28,7 @@ get_server_path(void) {
     if (server_path_env) {
         // if the envvar is set, use it
 #ifdef __WINDOWS__
-        char *server_path = sc_str_from_wchars(server_path_env);
+        char *server_path = utf8_from_wide_char(server_path_env);
 #else
         char *server_path = strdup(server_path_env);
 #endif
@@ -42,18 +41,18 @@ get_server_path(void) {
     }
 
 #ifndef PORTABLE
-    LOGD("Using server: " SC_SERVER_PATH_DEFAULT);
+    LOGD("Using server: " DEFAULT_SERVER_PATH);
-    char *server_path = strdup(SC_SERVER_PATH_DEFAULT);
+    char *server_path = strdup(DEFAULT_SERVER_PATH);
     if (!server_path) {
         LOGE("Could not allocate memory");
         return NULL;
     }
 #else
-    char *server_path = sc_file_get_local_path(SC_SERVER_FILENAME);
+    char *server_path = get_local_file_path(SERVER_FILENAME);
     if (!server_path) {
         LOGE("Could not get local file path, "
-             "using " SC_SERVER_FILENAME " from current directory");
+             "using " SERVER_FILENAME " from current directory");
-        return strdup(SC_SERVER_FILENAME);
+        return strdup(SERVER_FILENAME);
     }
 
     LOGD("Using server (portable): %s", server_path);
@@ -63,7 +62,7 @@ get_server_path(void) {
 }
 
 static void
-sc_server_params_destroy(struct sc_server_params *params) {
+server_params_destroy(struct server_params *params) {
     // The server stores a copy of the params provided by the user
     free((char *) params->serial);
     free((char *) params->crop);
@@ -72,8 +71,7 @@ sc_server_params_destroy(struct sc_server_params *params) {
 }
 
 static bool
-sc_server_params_copy(struct sc_server_params *dst,
+server_params_copy(struct server_params *dst, const struct server_params *src) {
-                      const struct sc_server_params *src) {
     *dst = *src;
 
     // The params reference user-allocated memory, so we must copy them to
@@ -97,24 +95,159 @@ sc_server_params_copy(struct sc_server_params *dst,
     return true;
 
 error:
-    sc_server_params_destroy(dst);
+    server_params_destroy(dst);
     return false;
 }
 
 static bool
-push_server(struct sc_intr *intr, const char *serial) {
+push_server(const char *serial) {
     char *server_path = get_server_path();
     if (!server_path) {
         return false;
     }
-    if (!sc_file_is_regular(server_path)) {
+    if (!is_regular_file(server_path)) {
         LOGE("'%s' does not exist or is not a regular file\n", server_path);
         free(server_path);
         return false;
     }
-    bool ok = adb_push(intr, serial, server_path, SC_DEVICE_SERVER_PATH);
+    process_t process = adb_push(serial, server_path, DEVICE_SERVER_PATH);
     free(server_path);
-    return ok;
+    return process_check_success(process, "adb push", true);
+}
+
+static bool
+enable_tunnel_reverse(const char *serial, uint16_t local_port) {
+    process_t process = adb_reverse(serial, SOCKET_NAME, local_port);
+    return process_check_success(process, "adb reverse", true);
+}
+
+static bool
+disable_tunnel_reverse(const char *serial) {
+    process_t process = adb_reverse_remove(serial, SOCKET_NAME);
+    return process_check_success(process, "adb reverse --remove", true);
+}
+
+static bool
+enable_tunnel_forward(const char *serial, uint16_t local_port) {
+    process_t process = adb_forward(serial, local_port, SOCKET_NAME);
+    return process_check_success(process, "adb forward", true);
+}
+
+static bool
+disable_tunnel_forward(const char *serial, uint16_t local_port) {
+    process_t process = adb_forward_remove(serial, local_port);
+    return process_check_success(process, "adb forward --remove", true);
+}
+
+static bool
+disable_tunnel(struct server *server) {
+    const char *serial = server->params.serial;
+    if (server->tunnel_forward) {
+        return disable_tunnel_forward(serial, server->local_port);
+    }
+    return disable_tunnel_reverse(serial);
+}
+
+static sc_socket
+listen_on_port(uint16_t port) {
+#define IPV4_LOCALHOST 0x7F000001
+    return net_listen(IPV4_LOCALHOST, port, 1);
+}
+
+static bool
+enable_tunnel_reverse_any_port(struct server *server,
+                               struct sc_port_range port_range) {
+    const char *serial = server->params.serial;
+    uint16_t port = port_range.first;
+    for (;;) {
+        if (!enable_tunnel_reverse(serial, port)) {
+            // the command itself failed, it will fail on any port
+            return false;
+        }
+
+        // At the application level, the device part is "the server" because it
+        // serves video stream and control. However, at the network level, the
+        // client listens and the server connects to the client. That way, the
+        // client can listen before starting the server app, so there is no
+        // need to try to connect until the server socket is listening on the
+        // device.
+        server->server_socket = listen_on_port(port);
+        if (server->server_socket != SC_INVALID_SOCKET) {
+            // success
+            server->local_port = port;
+            return true;
+        }
+
+        // failure, disable tunnel and try another port
+        if (!disable_tunnel_reverse(serial)) {
+            LOGW("Could not remove reverse tunnel on port %" PRIu16, port);
+        }
+
+        // check before incrementing to avoid overflow on port 65535
+        if (port < port_range.last) {
+            LOGW("Could not listen on port %" PRIu16", retrying on %" PRIu16,
+                 port, (uint16_t) (port + 1));
+            port++;
+            continue;
+        }
+
+        if (port_range.first == port_range.last) {
+            LOGE("Could not listen on port %" PRIu16, port_range.first);
+        } else {
+            LOGE("Could not listen on any port in range %" PRIu16 ":%" PRIu16,
+                 port_range.first, port_range.last);
+        }
+        return false;
+    }
+}
+
+static bool
+enable_tunnel_forward_any_port(struct server *server,
+                               struct sc_port_range port_range) {
+    server->tunnel_forward = true;
+
+    const char *serial = server->params.serial;
+    uint16_t port = port_range.first;
+    for (;;) {
+        if (enable_tunnel_forward(serial, port)) {
+            // success
+            server->local_port = port;
+            return true;
+        }
+
+        if (port < port_range.last) {
+            LOGW("Could not forward port %" PRIu16", retrying on %" PRIu16,
+                 port, (uint16_t) (port + 1));
+            port++;
+            continue;
+        }
+
+        if (port_range.first == port_range.last) {
+            LOGE("Could not forward port %" PRIu16, port_range.first);
+        } else {
+            LOGE("Could not forward any port in range %" PRIu16 ":%" PRIu16,
+                 port_range.first, port_range.last);
+        }
+        return false;
+    }
+}
+
+static bool
+enable_tunnel_any_port(struct server *server, struct sc_port_range port_range,
+                       bool force_adb_forward) {
+    if (!force_adb_forward) {
+        // Attempt to use "adb reverse"
+        if (enable_tunnel_reverse_any_port(server, port_range)) {
+            return true;
+        }
+
+        // if "adb reverse" does not work (e.g. over "adb connect"), it
+        // fallbacks to "adb forward", so the app socket is the client
+
+        LOGW("'adb reverse' failed, fallback to 'adb forward'");
+    }
+
+    return enable_tunnel_forward_any_port(server, port_range);
 }
 
 static const char *
@@ -136,9 +269,8 @@ log_level_to_server_string(enum sc_log_level level) {
     }
 }
 
-static sc_pid
+static process_t
-execute_server(struct sc_server *server,
+execute_server(struct server *server, const struct server_params *params) {
-               const struct sc_server_params *params) {
     const char *serial = server->params.serial;
 
     char max_size_string[6];
@@ -154,7 +286,7 @@ execute_server(struct sc_server *server,
     sprintf(display_id_string, "%"PRIu32, params->display_id);
     const char *const cmd[] = {
         "shell",
-        "CLASSPATH=" SC_DEVICE_SERVER_PATH,
+        "CLASSPATH=" DEVICE_SERVER_PATH,
         "app_process",
 #ifdef SERVER_DEBUGGER
 # define SERVER_DEBUGGER_PORT "5005"
@@ -176,7 +308,7 @@ execute_server(struct sc_server *server,
         bit_rate_string,
         max_fps_string,
         lock_video_orientation_string,
-        server->tunnel.forward ? "true" : "false",
+        server->tunnel_forward ? "true" : "false",
         params->crop ? params->crop : "-",
         "true", // always send frame meta (packet boundaries + timestamp)
         params->control ? "true" : "false",
@@ -201,373 +333,279 @@ execute_server(struct sc_server *server,
     return adb_execute(serial, cmd, ARRAY_LEN(cmd));
 }
 
-static bool
+static sc_socket
-connect_and_read_byte(struct sc_intr *intr, sc_socket socket,
+connect_and_read_byte(uint16_t port) {
-                      uint32_t tunnel_host, uint16_t tunnel_port) {
+    sc_socket socket = net_connect(IPV4_LOCALHOST, port);
-    bool ok = net_connect_intr(intr, socket, tunnel_host, tunnel_port);
+    if (socket == SC_INVALID_SOCKET) {
-    if (!ok) {
+        return SC_INVALID_SOCKET;
-        return false;
     }
 
     char byte;
     // the connection may succeed even if the server behind the "adb tunnel"
     // is not listening, so read one byte to detect a working connection
-    if (net_recv_intr(intr, socket, &byte, 1) != 1) {
+    if (net_recv(socket, &byte, 1) != 1) {
         // the server is not listening yet behind the adb tunnel
-        return false;
+        net_close(socket);
+        return SC_INVALID_SOCKET;
     }
-
+    return socket;
-    return true;
 }
 
 static sc_socket
-connect_to_server(struct sc_server *server, uint32_t attempts, sc_tick delay,
+connect_to_server(uint16_t port, uint32_t attempts, uint32_t delay) {
-                  uint32_t host, uint16_t port) {
     do {
         LOGD("Remaining connection attempts: %d", (int) attempts);
-        sc_socket socket = net_socket();
+        sc_socket socket = connect_and_read_byte(port);
-        if (socket != SC_SOCKET_NONE) {
+        if (socket != SC_INVALID_SOCKET) {
-            bool ok = connect_and_read_byte(&server->intr, socket, host, port);
+            // it worked!
-            if (ok) {
+            return socket;
-                // it worked!
-                return socket;
-            }
-
-            net_close(socket);
         }
-
-        if (sc_intr_is_interrupted(&server->intr)) {
-            // Stop immediately
-            break;
-        }
-
         if (attempts) {
-            sc_mutex_lock(&server->mutex);
+            SDL_Delay(delay);
-            sc_tick deadline = sc_tick_now() + delay;
-            bool timed_out = false;
-            while (!server->stopped && !timed_out) {
-                timed_out = !sc_cond_timedwait(&server->cond_stopped,
-                                               &server->mutex, deadline);
-            }
-            bool stopped = server->stopped;
-            sc_mutex_unlock(&server->mutex);
-
-            if (stopped) {
-                LOGI("Connection attempt stopped");
-                break;
-            }
         }
     } while (--attempts > 0);
-    return SC_SOCKET_NONE;
+    return SC_INVALID_SOCKET;
 }
 
 bool
-sc_server_init(struct sc_server *server, const struct sc_server_params *params,
+server_init(struct server *server, const struct server_params *params) {
-              const struct sc_server_callbacks *cbs, void *cbs_userdata) {
+    bool ok = server_params_copy(&server->params, params);
-    bool ok = sc_server_params_copy(&server->params, params);
     if (!ok) {
         LOGE("Could not copy server params");
         return false;
     }
 
+    server->process = PROCESS_NONE;
+
     ok = sc_mutex_init(&server->mutex);
     if (!ok) {
-        LOGE("Could not create server mutex");
+        server_params_destroy(&server->params);
-        sc_server_params_destroy(&server->params);
         return false;
     }
 
-    ok = sc_cond_init(&server->cond_stopped);
+    ok = sc_cond_init(&server->process_terminated_cond);
     if (!ok) {
-        LOGE("Could not create server cond_stopped");
         sc_mutex_destroy(&server->mutex);
-        sc_server_params_destroy(&server->params);
+        server_params_destroy(&server->params);
         return false;
     }
 
-    ok = sc_intr_init(&server->intr);
+    server->process_terminated = false;
-    if (!ok) {
-        LOGE("Could not create intr");
-        sc_cond_destroy(&server->cond_stopped);
-        sc_mutex_destroy(&server->mutex);
-        sc_server_params_destroy(&server->params);
-        return false;
-    }
 
-    server->stopped = false;
+    server->server_socket = SC_INVALID_SOCKET;
+    server->video_socket = SC_INVALID_SOCKET;
+    server->control_socket = SC_INVALID_SOCKET;
 
-    server->video_socket = SC_SOCKET_NONE;
+    server->local_port = 0;
-    server->control_socket = SC_SOCKET_NONE;
 
-    sc_adb_tunnel_init(&server->tunnel);
+    server->tunnel_enabled = false;
-
+    server->tunnel_forward = false;
-    assert(cbs);
-    assert(cbs->on_connection_failed);
-    assert(cbs->on_connected);
-    assert(cbs->on_disconnected);
-
-    server->cbs = cbs;
-    server->cbs_userdata = cbs_userdata;
-
-    return true;
-}
-
-static bool
-device_read_info(struct sc_intr *intr, sc_socket device_socket,
-                 struct sc_server_info *info) {
-    unsigned char buf[SC_DEVICE_NAME_FIELD_LENGTH + 4];
-    ssize_t r = net_recv_all_intr(intr, device_socket, buf, sizeof(buf));
-    if (r < SC_DEVICE_NAME_FIELD_LENGTH + 4) {
-        LOGE("Could not retrieve device information");
-        return false;
-    }
-    // in case the client sends garbage
-    buf[SC_DEVICE_NAME_FIELD_LENGTH - 1] = '\0';
-    memcpy(info->device_name, (char *) buf, sizeof(info->device_name));
-
-    info->frame_size.width = (buf[SC_DEVICE_NAME_FIELD_LENGTH] << 8)
-                           | buf[SC_DEVICE_NAME_FIELD_LENGTH + 1];
-    info->frame_size.height = (buf[SC_DEVICE_NAME_FIELD_LENGTH + 2] << 8)
-                            | buf[SC_DEVICE_NAME_FIELD_LENGTH + 3];
-    return true;
-}
-
-static bool
-sc_server_connect_to(struct sc_server *server, struct sc_server_info *info) {
-    struct sc_adb_tunnel *tunnel = &server->tunnel;
-
-    assert(tunnel->enabled);
-
-    const char *serial = server->params.serial;
-
-    sc_socket video_socket = SC_SOCKET_NONE;
-    sc_socket control_socket = SC_SOCKET_NONE;
-    if (!tunnel->forward) {
-        video_socket = net_accept_intr(&server->intr, tunnel->server_socket);
-        if (video_socket == SC_SOCKET_NONE) {
-            goto fail;
-        }
-
-        control_socket = net_accept_intr(&server->intr, tunnel->server_socket);
-        if (control_socket == SC_SOCKET_NONE) {
-            goto fail;
-        }
-    } else {
-        uint32_t tunnel_host = server->params.tunnel_host;
-        if (!tunnel_host) {
-            tunnel_host = IPV4_LOCALHOST;
-        }
-
-        uint16_t tunnel_port = server->params.tunnel_port;
-        if (!tunnel_port) {
-            tunnel_port = tunnel->local_port;
-        }
-
-        uint32_t attempts = 100;
-        sc_tick delay = SC_TICK_FROM_MS(100);
-        video_socket = connect_to_server(server, attempts, delay, tunnel_host,
-                                         tunnel_port);
-        if (video_socket == SC_SOCKET_NONE) {
-            goto fail;
-        }
-
-        // we know that the device is listening, we don't need several attempts
-        control_socket = net_socket();
-        if (control_socket == SC_SOCKET_NONE) {
-            goto fail;
-        }
-        bool ok = net_connect_intr(&server->intr, control_socket, tunnel_host,
-                                   tunnel_port);
-        if (!ok) {
-            goto fail;
-        }
-    }
-
-    // we don't need the adb tunnel anymore
-    sc_adb_tunnel_close(tunnel, &server->intr, serial);
-
-    // The sockets will be closed on stop if device_read_info() fails
-    bool ok = device_read_info(&server->intr, video_socket, info);
-    if (!ok) {
-        goto fail;
-    }
-
-    assert(video_socket != SC_SOCKET_NONE);
-    assert(control_socket != SC_SOCKET_NONE);
-
-    server->video_socket = video_socket;
-    server->control_socket = control_socket;
-
-    return true;
-
-fail:
-    if (video_socket != SC_SOCKET_NONE) {
-        if (!net_close(video_socket)) {
-            LOGW("Could not close video socket");
-        }
-    }
-
-    if (control_socket != SC_SOCKET_NONE) {
-        if (!net_close(control_socket)) {
-            LOGW("Could not close control socket");
-        }
-    }
-
-    // Always leave this function with tunnel disabled
-    sc_adb_tunnel_close(tunnel, &server->intr, serial);
-
-    return false;
-}
-
-static void
-sc_server_on_terminated(void *userdata) {
-    struct sc_server *server = userdata;
-
-    // If the server process dies before connecting to the server socket,
-    // then the client will be stuck forever on accept(). To avoid the problem,
-    // wake up the accept() call (or any other) when the server dies, like on
-    // stop() (it is safe to call interrupt() twice).
-    sc_intr_interrupt(&server->intr);
-
-    server->cbs->on_disconnected(server, server->cbs_userdata);
-
-    LOGD("Server terminated");
-}
-
-static bool
-sc_server_fill_serial(struct sc_server *server) {
-    // Retrieve the actual device immediately if not provided, so that all
-    // future adb commands are executed for this specific device, even if other
-    // devices are connected afterwards (without "more than one
-    // device/emulator" error)
-    if (!server->params.serial) {
-        // The serial is owned by sc_server_params, and will be freed on destroy
-        server->params.serial = adb_get_serialno(&server->intr);
-        if (!server->params.serial) {
-            LOGE("Could not get device serial");
-            return false;
-        }
-    }
 
     return true;
 }
 
 static int
-run_server(void *data) {
+run_wait_server(void *data) {
-    struct sc_server *server = data;
+    struct server *server = data;
+    process_wait(server->process, false); // ignore exit code
 
-    if (!sc_server_fill_serial(server)) {
+    sc_mutex_lock(&server->mutex);
-        goto error_connection_failed;
+    server->process_terminated = true;
+    sc_cond_signal(&server->process_terminated_cond);
+    sc_mutex_unlock(&server->mutex);
+
+    // no need for synchronization, server_socket is initialized before this
+    // thread was created
+    if (server->server_socket != SC_INVALID_SOCKET) {
+        // Unblock any accept()
+        net_interrupt(server->server_socket);
     }
 
-    const struct sc_server_params *params = &server->params;
+    LOGD("Server terminated");
+    return 0;
+}
 
-    LOGD("Device serial: %s", params->serial);
+bool
+server_start(struct server *server) {
+    const struct server_params *params = &server->params;
 
-    bool ok = push_server(&server->intr, params->serial);
+    if (!push_server(params->serial)) {
-    if (!ok) {
+        /* server->serial will be freed on server_destroy() */
-        goto error_connection_failed;
+        return false;
     }
 
-    ok = sc_adb_tunnel_open(&server->tunnel, &server->intr, params->serial,
+    if (!enable_tunnel_any_port(server, params->port_range,
-                            params->port_range, params->force_adb_forward);
+                                params->force_adb_forward)) {
-    if (!ok) {
+        return false;
-        goto error_connection_failed;
     }
 
     // server will connect to our server socket
-    sc_pid pid = execute_server(server, params);
+    server->process = execute_server(server, params);
-    if (pid == SC_PROCESS_NONE) {
+    if (server->process == PROCESS_NONE) {
-        sc_adb_tunnel_close(&server->tunnel, &server->intr, params->serial);
+        goto error;
-        goto error_connection_failed;
     }
 
-    static const struct sc_process_listener listener = {
+    // If the server process dies before connecting to the server socket, then
-        .on_terminated = sc_server_on_terminated,
+    // the client will be stuck forever on accept(). To avoid the problem, we
-    };
+    // must be able to wake up the accept() call when the server dies. To keep
-    struct sc_process_observer observer;
+    // things simple and multiplatform, just spawn a new thread waiting for the
-    ok = sc_process_observer_init(&observer, pid, &listener, server);
+    // server process and calling shutdown()/close() on the server socket if
+    // necessary to wake up any accept() blocking call.
+    bool ok = sc_thread_create(&server->wait_server_thread, run_wait_server,
+                               "wait-server", server);
     if (!ok) {
-        sc_process_terminate(pid);
+        process_terminate(server->process);
-        sc_process_wait(pid, true); // ignore exit code
+        process_wait(server->process, true); // ignore exit code
-        sc_adb_tunnel_close(&server->tunnel, &server->intr, params->serial);
+        goto error;
-        goto error_connection_failed;
     }
 
-    ok = sc_server_connect_to(server, &server->info);
+    server->tunnel_enabled = true;
-    // The tunnel is always closed by server_connect_to()
+
-    if (!ok) {
+    return true;
-        sc_process_terminate(pid);
+
-        sc_process_wait(pid, true); // ignore exit code
+error:
-        sc_process_observer_join(&observer);
+    // The server socket (if any) will be closed on server_destroy()
-        sc_process_observer_destroy(&observer);
+
-        goto error_connection_failed;
+    disable_tunnel(server);
+
+    return false;
+}
+
+static bool
+device_read_info(sc_socket device_socket, char *device_name,
+                 struct size *size) {
+    unsigned char buf[DEVICE_NAME_FIELD_LENGTH + 4];
+    ssize_t r = net_recv_all(device_socket, buf, sizeof(buf));
+    if (r < DEVICE_NAME_FIELD_LENGTH + 4) {
+        LOGE("Could not retrieve device information");
+        return false;
+    }
+    // in case the client sends garbage
+    buf[DEVICE_NAME_FIELD_LENGTH - 1] = '\0';
+    // strcpy is safe here, since name contains at least
+    // DEVICE_NAME_FIELD_LENGTH bytes and strlen(buf) < DEVICE_NAME_FIELD_LENGTH
+    strcpy(device_name, (char *) buf);
+    size->width = (buf[DEVICE_NAME_FIELD_LENGTH] << 8)
+            | buf[DEVICE_NAME_FIELD_LENGTH + 1];
+    size->height = (buf[DEVICE_NAME_FIELD_LENGTH + 2] << 8)
+            | buf[DEVICE_NAME_FIELD_LENGTH + 3];
+    return true;
+}
+
+bool
+server_connect_to(struct server *server, char *device_name, struct size *size) {
+    if (!server->tunnel_forward) {
+        server->video_socket = net_accept(server->server_socket);
+        if (server->video_socket == SC_INVALID_SOCKET) {
+            return false;
+        }
+
+        server->control_socket = net_accept(server->server_socket);
+        if (server->control_socket == SC_INVALID_SOCKET) {
+            // the video_socket will be cleaned up on destroy
+            return false;
+        }
+
+        // we don't need the server socket anymore
+        if (!net_close(server->server_socket)) {
+            LOGW("Could not close server socket on connect");
+        }
+        // Do not attempt to close it again on server_destroy()
+        server->server_socket = SC_INVALID_SOCKET;
+    } else {
+        uint32_t attempts = 100;
+        uint32_t delay = 100; // ms
+        server->video_socket =
+            connect_to_server(server->local_port, attempts, delay);
+        if (server->video_socket == SC_INVALID_SOCKET) {
+            return false;
+        }
+
+        // we know that the device is listening, we don't need several attempts
+        server->control_socket =
+            net_connect(IPV4_LOCALHOST, server->local_port);
+        if (server->control_socket == SC_INVALID_SOCKET) {
+            return false;
+        }
     }
 
-    // Now connected
+    // we don't need the adb tunnel anymore
-    server->cbs->on_connected(server, server->cbs_userdata);
+    disable_tunnel(server); // ignore failure
+    server->tunnel_enabled = false;
 
-    // Wait for server_stop()
+    // The sockets will be closed on stop if device_read_info() fails
-    sc_mutex_lock(&server->mutex);
+    return device_read_info(server->video_socket, device_name, size);
-    while (!server->stopped) {
+}
-        sc_cond_wait(&server->cond_stopped, &server->mutex);
+
+void
+server_stop(struct server *server) {
+    if (server->server_socket != SC_INVALID_SOCKET) {
+        if (!net_interrupt(server->server_socket)) {
+            LOGW("Could not interrupt server socket");
+        }
+    }
+    if (server->video_socket != SC_INVALID_SOCKET) {
+        if (!net_interrupt(server->video_socket)) {
+            LOGW("Could not interrupt video socket");
+        }
+    }
+    if (server->control_socket != SC_INVALID_SOCKET) {
+        if (!net_interrupt(server->control_socket)) {
+            LOGW("Could not interrupt control socket");
+        }
+    }
+
+    assert(server->process != PROCESS_NONE);
+
+    if (server->tunnel_enabled) {
+        // ignore failure
+        disable_tunnel(server);
     }
-    sc_mutex_unlock(&server->mutex);
 
     // Give some delay for the server to terminate properly
+    sc_mutex_lock(&server->mutex);
+    bool signaled = false;
+    if (!server->process_terminated) {
 #define WATCHDOG_DELAY SC_TICK_FROM_SEC(1)
-    sc_tick deadline = sc_tick_now() + WATCHDOG_DELAY;
+        signaled = sc_cond_timedwait(&server->process_terminated_cond,
-    bool terminated = sc_process_observer_timedwait(&observer, deadline);
+                                     &server->mutex,
+                                     sc_tick_now() + WATCHDOG_DELAY);
+    }
+    sc_mutex_unlock(&server->mutex);
 
     // After this delay, kill the server if it's not dead already.
     // On some devices, closing the sockets is not sufficient to wake up the
     // blocking calls while the device is asleep.
-    if (!terminated) {
+    if (!signaled) {
-        // The process may have terminated since the check, but it is not
+        // The process is terminated, but not reaped (closed) yet, so its PID
-        // reaped (closed) yet, so its PID is still valid, and it is ok to call
+        // is still valid.
-        // sc_process_terminate() even in that case.
         LOGW("Killing the server...");
-        sc_process_terminate(pid);
+        process_terminate(server->process);
     }
 
-    sc_process_observer_join(&observer);
+    sc_thread_join(&server->wait_server_thread, NULL);
-    sc_process_observer_destroy(&observer);
+    process_close(server->process);
-
-    sc_process_close(pid);
-
-    return 0;
-
-error_connection_failed:
-    server->cbs->on_connection_failed(server, server->cbs_userdata);
-    return -1;
-}
-
-bool
-sc_server_start(struct sc_server *server) {
-    bool ok = sc_thread_create(&server->thread, run_server, "server", server);
-    if (!ok) {
-        LOGE("Could not create server thread");
-        return false;
-    }
-
-    return true;
 }
 
 void
-sc_server_stop(struct sc_server *server) {
+server_destroy(struct server *server) {
-    sc_mutex_lock(&server->mutex);
+    if (server->server_socket != SC_INVALID_SOCKET) {
-    server->stopped = true;
+        if (!net_close(server->server_socket)) {
-    sc_cond_signal(&server->cond_stopped);
+            LOGW("Could not close server socket");
-    sc_intr_interrupt(&server->intr);
+        }
-    sc_mutex_unlock(&server->mutex);
+    }
+    if (server->video_socket != SC_INVALID_SOCKET) {
+        if (!net_close(server->video_socket)) {
+            LOGW("Could not close video socket");
+        }
+    }
+    if (server->control_socket != SC_INVALID_SOCKET) {
+        if (!net_close(server->control_socket)) {
+            LOGW("Could not close control socket");
+        }
+    }
 
-    sc_thread_join(&server->thread, NULL);
+    server_params_destroy(&server->params);
-}
+    sc_cond_destroy(&server->process_terminated_cond);
-
-void
-sc_server_destroy(struct sc_server *server) {
-    sc_server_params_destroy(&server->params);
-    sc_intr_destroy(&server->intr);
-    sc_cond_destroy(&server->cond_stopped);
     sc_mutex_destroy(&server->mutex);
 }

app/src/server.h

@@ -8,29 +8,19 @@
 #include <stdint.h>
 
 #include "adb.h"
-#include "adb_tunnel.h"
 #include "coords.h"
 #include "options.h"
-#include "util/intr.h"
 #include "util/log.h"
 #include "util/net.h"
 #include "util/thread.h"
 
-#define SC_DEVICE_NAME_FIELD_LENGTH 64
+struct server_params {
-struct sc_server_info {
-    char device_name[SC_DEVICE_NAME_FIELD_LENGTH];
-    struct sc_size frame_size;
-};
-
-struct sc_server_params {
     const char *serial;
     enum sc_log_level log_level;
     const char *crop;
     const char *codec_options;
     const char *encoder_name;
     struct sc_port_range port_range;
-    uint32_t tunnel_host;
-    uint16_t tunnel_port;
     uint16_t max_size;
     uint32_t bit_rate;
     uint16_t max_fps;
@@ -43,62 +33,45 @@ struct sc_server_params {
     bool power_off_on_close;
 };
 
-struct sc_server {
+struct server {
     // The internal allocated strings are copies owned by the server
-    struct sc_server_params params;
+    struct server_params params;
 
-    sc_thread thread;
+    process_t process;
-    struct sc_server_info info; // initialized once connected
+    sc_thread wait_server_thread;
 
     sc_mutex mutex;
-    sc_cond cond_stopped;
+    sc_cond process_terminated_cond;
-    bool stopped;
+    bool process_terminated;
-
-    struct sc_intr intr;
-    struct sc_adb_tunnel tunnel;
 
+    sc_socket server_socket; // only used if !tunnel_forward
     sc_socket video_socket;
     sc_socket control_socket;
-
+    uint16_t local_port; // selected from port_range
-    const struct sc_server_callbacks *cbs;
+    bool tunnel_enabled;
-    void *cbs_userdata;
+    bool tunnel_forward; // use "adb forward" instead of "adb reverse"
-};
-
-struct sc_server_callbacks {
-    /**
-     * Called when the server failed to connect
-     *
-     * If it is called, then on_connected() and on_disconnected() will never be
-     * called.
-     */
-    void (*on_connection_failed)(struct sc_server *server, void *userdata);
-
-    /**
-     * Called on server connection
-     */
-    void (*on_connected)(struct sc_server *server, void *userdata);
-
-    /**
-     * Called on server disconnection (after it has been connected)
-     */
-    void (*on_disconnected)(struct sc_server *server, void *userdata);
 };
 
 // init the server with the given params
 bool
-sc_server_init(struct sc_server *server, const struct sc_server_params *params,
+server_init(struct server *server, const struct server_params *params);
-               const struct sc_server_callbacks *cbs, void *cbs_userdata);
 
-// start the server asynchronously
+// push, enable tunnel et start the server
 bool
-sc_server_start(struct sc_server *server);
+server_start(struct server *server);
+
+#define DEVICE_NAME_FIELD_LENGTH 64
+// block until the communication with the server is established
+// device_name must point to a buffer of at least DEVICE_NAME_FIELD_LENGTH bytes
+bool
+server_connect_to(struct server *server, char *device_name, struct size *size);
 
 // disconnect and kill the server process
 void
-sc_server_stop(struct sc_server *server);
+server_stop(struct server *server);
 
 // close and release sockets
 void
-sc_server_destroy(struct sc_server *server);
+server_destroy(struct server *server);
 
 #endif

app/src/sys/unix/file.c

@@ -1,75 +0,0 @@
-#include "util/file.h"
-
-#include <limits.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-bool
-sc_file_executable_exists(const char *file) {
-    char *path = getenv("PATH");
-    if (!path)
-        return false;
-    path = strdup(path);
-    if (!path)
-        return false;
-
-    bool ret = false;
-    size_t file_len = strlen(file);
-    char *saveptr;
-    for (char *dir = strtok_r(path, ":", &saveptr); dir;
-            dir = strtok_r(NULL, ":", &saveptr)) {
-        size_t dir_len = strlen(dir);
-        char *fullpath = malloc(dir_len + file_len + 2);
-        if (!fullpath)
-            continue;
-        memcpy(fullpath, dir, dir_len);
-        fullpath[dir_len] = '/';
-        memcpy(fullpath + dir_len + 1, file, file_len + 1);
-
-        struct stat sb;
-        bool fullpath_executable = stat(fullpath, &sb) == 0 &&
-            sb.st_mode & S_IXUSR;
-        free(fullpath);
-        if (fullpath_executable) {
-            ret = true;
-            break;
-        }
-    }
-
-    free(path);
-    return ret;
-}
-
-char *
-sc_file_get_executable_path(void) {
-// <https://stackoverflow.com/a/1024937/1987178>
-#ifdef __linux__
-    char buf[PATH_MAX + 1]; // +1 for the null byte
-    ssize_t len = readlink("/proc/self/exe", buf, PATH_MAX);
-    if (len == -1) {
-        perror("readlink");
-        return NULL;
-    }
-    buf[len] = '\0';
-    return strdup(buf);
-#else
-    // in practice, we only need this feature for portable builds, only used on
-    // Windows, so we don't care implementing it for every platform
-    // (it's useful to have a working version on Linux for debugging though)
-    return NULL;
-#endif
-}
-
-bool
-sc_file_is_regular(const char *path) {
-    struct stat path_stat;
-
-    if (stat(path, &path_stat)) {
-        perror("stat");
-        return false;
-    }
-    return S_ISREG(path_stat.st_mode);
-}
-

app/src/sys/unix/process.c

@@ -3,16 +3,56 @@
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <limits.h>
 #include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
 #include "util/log.h"
 
-enum sc_process_result
+bool
-sc_process_execute_p(const char *const argv[], sc_pid *pid,
+search_executable(const char *file) {
-                     int *pin, int *pout, int *perr) {
+    char *path = getenv("PATH");
+    if (!path)
+        return false;
+    path = strdup(path);
+    if (!path)
+        return false;
+
+    bool ret = false;
+    size_t file_len = strlen(file);
+    char *saveptr;
+    for (char *dir = strtok_r(path, ":", &saveptr); dir;
+            dir = strtok_r(NULL, ":", &saveptr)) {
+        size_t dir_len = strlen(dir);
+        char *fullpath = malloc(dir_len + file_len + 2);
+        if (!fullpath)
+            continue;
+        memcpy(fullpath, dir, dir_len);
+        fullpath[dir_len] = '/';
+        memcpy(fullpath + dir_len + 1, file, file_len + 1);
+
+        struct stat sb;
+        bool fullpath_executable = stat(fullpath, &sb) == 0 &&
+            sb.st_mode & S_IXUSR;
+        free(fullpath);
+        if (fullpath_executable) {
+            ret = true;
+            break;
+        }
+    }
+
+    free(path);
+    return ret;
+}
+
+enum process_result
+process_execute_redirect(const char *const argv[], pid_t *pid, int *pipe_stdin,
+                     int *pipe_stdout, int *pipe_stderr) {
     int in[2];
     int out[2];
     int err[2];
@@ -20,44 +60,44 @@ sc_process_execute_p(const char *const argv[], sc_pid *pid,
 
     if (pipe(internal) == -1) {
         perror("pipe");
-        return SC_PROCESS_ERROR_GENERIC;
+        return PROCESS_ERROR_GENERIC;
     }
-    if (pin) {
+    if (pipe_stdin) {
         if (pipe(in) == -1) {
             perror("pipe");
             close(internal[0]);
             close(internal[1]);
-            return SC_PROCESS_ERROR_GENERIC;
+            return PROCESS_ERROR_GENERIC;
         }
     }
-    if (pout) {
+    if (pipe_stdout) {
         if (pipe(out) == -1) {
             perror("pipe");
             // clean up
-            if (pin) {
+            if (pipe_stdin) {
                 close(in[0]);
                 close(in[1]);
             }
             close(internal[0]);
             close(internal[1]);
-            return SC_PROCESS_ERROR_GENERIC;
+            return PROCESS_ERROR_GENERIC;
         }
     }
-    if (perr) {
+    if (pipe_stderr) {
         if (pipe(err) == -1) {
             perror("pipe");
             // clean up
-            if (pout) {
+            if (pipe_stdout) {
                 close(out[0]);
                 close(out[1]);
             }
-            if (pin) {
+            if (pipe_stdin) {
                 close(in[0]);
                 close(in[1]);
             }
             close(internal[0]);
             close(internal[1]);
-            return SC_PROCESS_ERROR_GENERIC;
+            return PROCESS_ERROR_GENERIC;
         }
     }
 
@@ -65,39 +105,39 @@ sc_process_execute_p(const char *const argv[], sc_pid *pid,
     if (*pid == -1) {
         perror("fork");
         // clean up
-        if (perr) {
+        if (pipe_stderr) {
             close(err[0]);
             close(err[1]);
         }
-        if (pout) {
+        if (pipe_stdout) {
             close(out[0]);
             close(out[1]);
         }
-        if (pin) {
+        if (pipe_stdin) {
             close(in[0]);
             close(in[1]);
         }
         close(internal[0]);
         close(internal[1]);
-        return SC_PROCESS_ERROR_GENERIC;
+        return PROCESS_ERROR_GENERIC;
     }
 
     if (*pid == 0) {
-        if (pin) {
+        if (pipe_stdin) {
             if (in[0] != STDIN_FILENO) {
                 dup2(in[0], STDIN_FILENO);
                 close(in[0]);
             }
             close(in[1]);
         }
-        if (pout) {
+        if (pipe_stdout) {
             if (out[1] != STDOUT_FILENO) {
                 dup2(out[1], STDOUT_FILENO);
                 close(out[1]);
             }
             close(out[0]);
         }
-        if (perr) {
+        if (pipe_stderr) {
             if (err[1] != STDERR_FILENO) {
                 dup2(err[1], STDERR_FILENO);
                 close(err[1]);
@@ -105,15 +145,15 @@ sc_process_execute_p(const char *const argv[], sc_pid *pid,
             close(err[0]);
         }
         close(internal[0]);
-        enum sc_process_result err;
+        enum process_result err;
         if (fcntl(internal[1], F_SETFD, FD_CLOEXEC) == 0) {
             execvp(argv[0], (char *const *) argv);
             perror("exec");
-            err = errno == ENOENT ? SC_PROCESS_ERROR_MISSING_BINARY
+            err = errno == ENOENT ? PROCESS_ERROR_MISSING_BINARY
-                                  : SC_PROCESS_ERROR_GENERIC;
+                                  : PROCESS_ERROR_GENERIC;
         } else {
             perror("fcntl");
-            err = SC_PROCESS_ERROR_GENERIC;
+            err = PROCESS_ERROR_GENERIC;
         }
         // send err to the parent
         if (write(internal[1], &err, sizeof(err)) == -1) {
@@ -128,33 +168,38 @@ sc_process_execute_p(const char *const argv[], sc_pid *pid,
 
     close(internal[1]);
 
-    enum sc_process_result res = SC_PROCESS_SUCCESS;
+    enum process_result res = PROCESS_SUCCESS;
     // wait for EOF or receive err from child
     if (read(internal[0], &res, sizeof(res)) == -1) {
         perror("read");
-        res = SC_PROCESS_ERROR_GENERIC;
+        res = PROCESS_ERROR_GENERIC;
     }
 
     close(internal[0]);
 
-    if (pin) {
+    if (pipe_stdin) {
         close(in[0]);
-        *pin = in[1];
+        *pipe_stdin = in[1];
     }
-    if (pout) {
+    if (pipe_stdout) {
-        *pout = out[0];
+        *pipe_stdout = out[0];
         close(out[1]);
     }
-    if (perr) {
+    if (pipe_stderr) {
-        *perr = err[0];
+        *pipe_stderr = err[0];
         close(err[1]);
     }
 
     return res;
 }
 
+enum process_result
+process_execute(const char *const argv[], pid_t *pid) {
+    return process_execute_redirect(argv, pid, NULL, NULL, NULL);
+}
+
 bool
-sc_process_terminate(pid_t pid) {
+process_terminate(pid_t pid) {
     if (pid <= 0) {
         LOGC("Requested to kill %d, this is an error. Please report the bug.\n",
              (int) pid);
@@ -163,8 +208,8 @@ sc_process_terminate(pid_t pid) {
     return kill(pid, SIGKILL) != -1;
 }
 
-sc_exit_code
+exit_code_t
-sc_process_wait(pid_t pid, bool close) {
+process_wait(pid_t pid, bool close) {
     int code;
     int options = WEXITED;
     if (!close) {
@@ -175,7 +220,7 @@ sc_process_wait(pid_t pid, bool close) {
     int r = waitid(P_PID, pid, &info, options);
     if (r == -1 || info.si_code != CLD_EXITED) {
         // could not wait, or exited unexpectedly, probably by a signal
-        code = SC_EXIT_CODE_NONE;
+        code = NO_EXIT_CODE;
     } else {
         code = info.si_status;
     }
@@ -183,17 +228,48 @@ sc_process_wait(pid_t pid, bool close) {
 }
 
 void
-sc_process_close(pid_t pid) {
+process_close(pid_t pid) {
-    sc_process_wait(pid, true); // ignore exit code
+    process_wait(pid, true); // ignore exit code
+}
+
+char *
+get_executable_path(void) {
+// <https://stackoverflow.com/a/1024937/1987178>
+#ifdef __linux__
+    char buf[PATH_MAX + 1]; // +1 for the null byte
+    ssize_t len = readlink("/proc/self/exe", buf, PATH_MAX);
+    if (len == -1) {
+        perror("readlink");
+        return NULL;
+    }
+    buf[len] = '\0';
+    return strdup(buf);
+#else
+    // in practice, we only need this feature for portable builds, only used on
+    // Windows, so we don't care implementing it for every platform
+    // (it's useful to have a working version on Linux for debugging though)
+    return NULL;
+#endif
+}
+
+bool
+is_regular_file(const char *path) {
+    struct stat path_stat;
+
+    if (stat(path, &path_stat)) {
+        perror("stat");
+        return false;
+    }
+    return S_ISREG(path_stat.st_mode);
 }
 
 ssize_t
-sc_pipe_read(int pipe, char *data, size_t len) {
+read_pipe(int pipe, char *data, size_t len) {
     return read(pipe, data, len);
 }
 
 void
-sc_pipe_close(int pipe) {
+close_pipe(int pipe) {
     if (close(pipe)) {
         perror("close pipe");
     }

app/src/sys/win/file.c

@@ -1,43 +0,0 @@
-#include "util/file.h"
-
-#include <windows.h>
-
-#include <sys/stat.h>
-
-#include "util/log.h"
-#include "util/str.h"
-
-char *
-sc_file_get_executable_path(void) {
-    HMODULE hModule = GetModuleHandleW(NULL);
-    if (!hModule) {
-        return NULL;
-    }
-    WCHAR buf[MAX_PATH + 1]; // +1 for the null byte
-    int len = GetModuleFileNameW(hModule, buf, MAX_PATH);
-    if (!len) {
-        return NULL;
-    }
-    buf[len] = '\0';
-    return sc_str_from_wchars(buf);
-}
-
-bool
-sc_file_is_regular(const char *path) {
-    wchar_t *wide_path = sc_str_to_wchars(path);
-    if (!wide_path) {
-        LOGC("Could not allocate wide char string");
-        return false;
-    }
-
-    struct _stat path_stat;
-    int r = _wstat(wide_path, &path_stat);
-    free(wide_path);
-
-    if (r) {
-        perror("stat");
-        return false;
-    }
-    return S_ISREG(path_stat.st_mode);
-}
-

app/src/sys/win/process.c

@@ -1,11 +1,10 @@
 #include "util/process.h"
 
-#include <processthreadsapi.h>
-
 #include <assert.h>
+#include <sys/stat.h>
 
 #include "util/log.h"
-#include "util/str.h"
+#include "util/str_util.h"
 
 #define CMD_MAX_LEN 8192
 
@@ -15,21 +14,19 @@ build_cmd(char *cmd, size_t len, const char *const argv[]) {
     // <http://daviddeley.com/autohotkey/parameters/parameters.htm#WINPASS>
     // only make it work for this very specific program
     // (don't handle escaping nor quotes)
-    size_t ret = sc_str_join(cmd, argv, ' ', len);
+    size_t ret = xstrjoin(cmd, argv, ' ', len);
     if (ret >= len) {
-        LOGE("Command too long (%" SC_PRIsizet " chars)", len - 1);
+        LOGE("Command too long (%" PRIsizet " chars)", len - 1);
         return false;
     }
     return true;
 }
 
-enum sc_process_result
+enum process_result
-sc_process_execute_p(const char *const argv[], HANDLE *handle,
+process_execute_redirect(const char *const argv[], HANDLE *handle,
-                     HANDLE *pin, HANDLE *pout, HANDLE *perr) {
+                         HANDLE *pipe_stdin, HANDLE *pipe_stdout,
-    enum sc_process_result ret = SC_PROCESS_ERROR_GENERIC;
+                         HANDLE *pipe_stderr) {
-
+    enum process_result ret = PROCESS_ERROR_GENERIC;
-    // Add 1 per non-NULL pointer
-    unsigned handle_count = !!pin + !!pout + !!perr;
 
     SECURITY_ATTRIBUTES sa;
     sa.nLength = sizeof(SECURITY_ATTRIBUTES);
@@ -39,178 +36,130 @@ sc_process_execute_p(const char *const argv[], HANDLE *handle,
     HANDLE stdin_read_handle;
     HANDLE stdout_write_handle;
     HANDLE stderr_write_handle;
-    if (pin) {
+    if (pipe_stdin) {
-        if (!CreatePipe(&stdin_read_handle, pin, &sa, 0)) {
+        if (!CreatePipe(&stdin_read_handle, pipe_stdin, &sa, 0)) {
             perror("pipe");
-            return SC_PROCESS_ERROR_GENERIC;
+            return PROCESS_ERROR_GENERIC;
         }
-        if (!SetHandleInformation(*pin, HANDLE_FLAG_INHERIT, 0)) {
+        if (!SetHandleInformation(*pipe_stdin, HANDLE_FLAG_INHERIT, 0)) {
             LOGE("SetHandleInformation stdin failed");
             goto error_close_stdin;
         }
     }
-    if (pout) {
+    if (pipe_stdout) {
-        if (!CreatePipe(pout, &stdout_write_handle, &sa, 0)) {
+        if (!CreatePipe(pipe_stdout, &stdout_write_handle, &sa, 0)) {
             perror("pipe");
             goto error_close_stdin;
         }
-        if (!SetHandleInformation(*pout, HANDLE_FLAG_INHERIT, 0)) {
+        if (!SetHandleInformation(*pipe_stdout, HANDLE_FLAG_INHERIT, 0)) {
             LOGE("SetHandleInformation stdout failed");
             goto error_close_stdout;
         }
     }
-    if (perr) {
+    if (pipe_stderr) {
-        if (!CreatePipe(perr, &stderr_write_handle, &sa, 0)) {
+        if (!CreatePipe(pipe_stderr, &stderr_write_handle, &sa, 0)) {
             perror("pipe");
             goto error_close_stdout;
         }
-        if (!SetHandleInformation(*perr, HANDLE_FLAG_INHERIT, 0)) {
+        if (!SetHandleInformation(*pipe_stderr, HANDLE_FLAG_INHERIT, 0)) {
             LOGE("SetHandleInformation stderr failed");
             goto error_close_stderr;
         }
     }
 
-    STARTUPINFOEXW si;
+    STARTUPINFOW si;
     PROCESS_INFORMATION pi;
     memset(&si, 0, sizeof(si));
-    si.StartupInfo.cb = sizeof(si);
+    si.cb = sizeof(si);
-    HANDLE handles[3];
+    if (pipe_stdin || pipe_stdout || pipe_stderr) {
-
+        si.dwFlags = STARTF_USESTDHANDLES;
-    LPPROC_THREAD_ATTRIBUTE_LIST lpAttributeList = NULL;
+        if (pipe_stdin) {
-    if (handle_count) {
+            si.hStdInput = stdin_read_handle;
-        si.StartupInfo.dwFlags = STARTF_USESTDHANDLES;
-        if (pin) {
-            si.StartupInfo.hStdInput = stdin_read_handle;
         }
-        if (pout) {
+        if (pipe_stdout) {
-            si.StartupInfo.hStdOutput = stdout_write_handle;
+            si.hStdOutput = stdout_write_handle;
         }
-        if (perr) {
+        if (pipe_stderr) {
-            si.StartupInfo.hStdError = stderr_write_handle;
+            si.hStdError = stderr_write_handle;
         }
-
-        SIZE_T size;
-        // Call it once to know the required buffer size
-        BOOL ok =
-            InitializeProcThreadAttributeList(NULL, 1, 0, &size)
-                || GetLastError() == ERROR_INSUFFICIENT_BUFFER;
-        if (!ok) {
-            goto error_close_stderr;
-        }
-
-        lpAttributeList = malloc(size);
-        if (!lpAttributeList) {
-            goto error_close_stderr;
-        }
-
-        ok = InitializeProcThreadAttributeList(lpAttributeList, 1, 0, &size);
-        if (!ok) {
-            free(lpAttributeList);
-            goto error_close_stderr;
-        }
-
-        // Explicitly pass the HANDLEs that must be inherited
-        unsigned i = 0;
-        if (pin) {
-            handles[i++] = stdin_read_handle;
-        }
-        if (pout) {
-            handles[i++] = stdout_write_handle;
-        }
-        if (perr) {
-            handles[i++] = stderr_write_handle;
-        }
-        ok = UpdateProcThreadAttribute(lpAttributeList, 0,
-                                       PROC_THREAD_ATTRIBUTE_HANDLE_LIST,
-                                       handles, handle_count * sizeof(HANDLE),
-                                       NULL, NULL);
-        if (!ok) {
-            goto error_free_attribute_list;
-        }
-
-        si.lpAttributeList = lpAttributeList;
     }
 
     char *cmd = malloc(CMD_MAX_LEN);
     if (!cmd || !build_cmd(cmd, CMD_MAX_LEN, argv)) {
-        goto error_free_attribute_list;
+        *handle = NULL;
+        goto error_close_stderr;
     }
 
-    wchar_t *wide = sc_str_to_wchars(cmd);
+    wchar_t *wide = utf8_to_wide_char(cmd);
     free(cmd);
     if (!wide) {
         LOGC("Could not allocate wide char string");
-        goto error_free_attribute_list;
+        goto error_close_stderr;
     }
 
-    BOOL bInheritHandles = handle_count > 0;
+    if (!CreateProcessW(NULL, wide, NULL, NULL, TRUE, 0, NULL, NULL, &si,
-    DWORD dwCreationFlags = handle_count > 0 ? EXTENDED_STARTUPINFO_PRESENT : 0;
+                        &pi)) {
-    BOOL ok = CreateProcessW(NULL, wide, NULL, NULL, bInheritHandles,
+        free(wide);
-                             dwCreationFlags, NULL, NULL, &si.StartupInfo, &pi);
+        *handle = NULL;
-    free(wide);
+
-    if (!ok) {
         if (GetLastError() == ERROR_FILE_NOT_FOUND) {
-            ret = SC_PROCESS_ERROR_MISSING_BINARY;
+            ret = PROCESS_ERROR_MISSING_BINARY;
         }
-        goto error_free_attribute_list;
+        goto error_close_stderr;
-    }
-
-    if (lpAttributeList) {
-        DeleteProcThreadAttributeList(lpAttributeList);
-        free(lpAttributeList);
     }
 
     // These handles are used by the child process, close them for this process
-    if (pin) {
+    if (pipe_stdin) {
         CloseHandle(stdin_read_handle);
     }
-    if (pout) {
+    if (pipe_stdout) {
         CloseHandle(stdout_write_handle);
     }
-    if (perr) {
+    if (pipe_stderr) {
         CloseHandle(stderr_write_handle);
     }
 
+    free(wide);
     *handle = pi.hProcess;
 
-    return SC_PROCESS_SUCCESS;
+    return PROCESS_SUCCESS;
 
-error_free_attribute_list:
-    if (lpAttributeList) {
-        DeleteProcThreadAttributeList(lpAttributeList);
-        free(lpAttributeList);
-    }
 error_close_stderr:
-    if (perr) {
+    if (pipe_stderr) {
-        CloseHandle(*perr);
+        CloseHandle(*pipe_stderr);
         CloseHandle(stderr_write_handle);
     }
 error_close_stdout:
-    if (pout) {
+    if (pipe_stdout) {
-        CloseHandle(*pout);
+        CloseHandle(*pipe_stdout);
         CloseHandle(stdout_write_handle);
     }
 error_close_stdin:
-    if (pin) {
+    if (pipe_stdin) {
-        CloseHandle(*pin);
+        CloseHandle(*pipe_stdin);
         CloseHandle(stdin_read_handle);
     }
 
     return ret;
 }
 
+enum process_result
+process_execute(const char *const argv[], HANDLE *handle) {
+    return process_execute_redirect(argv, handle, NULL, NULL, NULL);
+}
+
 bool
-sc_process_terminate(HANDLE handle) {
+process_terminate(HANDLE handle) {
     return TerminateProcess(handle, 1);
 }
 
-sc_exit_code
+exit_code_t
-sc_process_wait(HANDLE handle, bool close) {
+process_wait(HANDLE handle, bool close) {
     DWORD code;
     if (WaitForSingleObject(handle, INFINITE) != WAIT_OBJECT_0
             || !GetExitCodeProcess(handle, &code)) {
         // could not wait or retrieve the exit code
-        code = SC_EXIT_CODE_NONE;
+        code = NO_EXIT_CODE; // max value, it's unsigned
     }
     if (close) {
         CloseHandle(handle);
@@ -219,14 +168,48 @@ sc_process_wait(HANDLE handle, bool close) {
 }
 
 void
-sc_process_close(HANDLE handle) {
+process_close(HANDLE handle) {
     bool closed = CloseHandle(handle);
     assert(closed);
     (void) closed;
 }
 
+char *
+get_executable_path(void) {
+    HMODULE hModule = GetModuleHandleW(NULL);
+    if (!hModule) {
+        return NULL;
+    }
+    WCHAR buf[MAX_PATH + 1]; // +1 for the null byte
+    int len = GetModuleFileNameW(hModule, buf, MAX_PATH);
+    if (!len) {
+        return NULL;
+    }
+    buf[len] = '\0';
+    return utf8_from_wide_char(buf);
+}
+
+bool
+is_regular_file(const char *path) {
+    wchar_t *wide_path = utf8_to_wide_char(path);
+    if (!wide_path) {
+        LOGC("Could not allocate wide char string");
+        return false;
+    }
+
+    struct _stat path_stat;
+    int r = _wstat(wide_path, &path_stat);
+    free(wide_path);
+
+    if (r) {
+        perror("stat");
+        return false;
+    }
+    return S_ISREG(path_stat.st_mode);
+}
+
 ssize_t
-sc_pipe_read(HANDLE pipe, char *data, size_t len) {
+read_pipe(HANDLE pipe, char *data, size_t len) {
     DWORD r;
     if (!ReadFile(pipe, data, len, &r, NULL)) {
         return -1;
@@ -235,7 +218,7 @@ sc_pipe_read(HANDLE pipe, char *data, size_t len) {
 }
 
 void
-sc_pipe_close(HANDLE pipe) {
+close_pipe(HANDLE pipe) {
     if (!CloseHandle(pipe)) {
         LOGW("Cannot close pipe");
     }

app/src/trait/key_processor.h

@@ -14,31 +14,12 @@
  * Component able to process and inject keys should implement this trait.
  */
 struct sc_key_processor {
-    /**
-     * Set by the implementation to indicate that it must explicitly wait for
-     * the clipboard to be set on the device before injecting Ctrl+v to avoid
-     * race conditions. If it is set, the input_manager will pass a valid
-     * ack_to_wait to process_key() in case of clipboard synchronization
-     * resulting of the key event.
-     */
-    bool async_paste;
-
     const struct sc_key_processor_ops *ops;
 };
 
 struct sc_key_processor_ops {
-
-    /**
-     * Process the keyboard event
-     *
-     * The `sequence` number (if different from `SC_SEQUENCE_INVALID`) indicates
-     * the acknowledgement number to wait for before injecting this event.
-     * This allows to ensure that the device clipboard is set before injecting
-     * Ctrl+v on the device.
-     */
     void
-    (*process_key)(struct sc_key_processor *kp, const SDL_KeyboardEvent *event,
+    (*process_key)(struct sc_key_processor *kp, const SDL_KeyboardEvent *event);
-                   uint64_t ack_to_wait);
 
     void
     (*process_text)(struct sc_key_processor *kp,

app/src/util/acksync.c

@@ -1,76 +0,0 @@
-#include "acksync.h"
-
-#include <assert.h>
-#include "util/log.h"
-
-bool
-sc_acksync_init(struct sc_acksync *as) {
-    bool ok = sc_mutex_init(&as->mutex);
-    if (!ok) {
-        return false;
-    }
-
-    ok = sc_cond_init(&as->cond);
-    if (!ok) {
-        sc_mutex_destroy(&as->mutex);
-        return false;
-    }
-
-    as->stopped = false;
-    as->ack = SC_SEQUENCE_INVALID;
-
-    return true;
-}
-
-void
-sc_acksync_destroy(struct sc_acksync *as) {
-    sc_cond_destroy(&as->cond);
-    sc_mutex_destroy(&as->mutex);
-}
-
-void
-sc_acksync_ack(struct sc_acksync *as, uint64_t sequence) {
-    sc_mutex_lock(&as->mutex);
-
-    // Acknowledgements must be monotonic
-    assert(sequence >= as->ack);
-
-    as->ack = sequence;
-    sc_cond_signal(&as->cond);
-
-    sc_mutex_unlock(&as->mutex);
-}
-
-enum sc_acksync_wait_result
-sc_acksync_wait(struct sc_acksync *as, uint64_t ack, sc_tick deadline) {
-    sc_mutex_lock(&as->mutex);
-
-    bool timed_out = false;
-    while (!as->stopped && as->ack < ack && !timed_out) {
-        timed_out = !sc_cond_timedwait(&as->cond, &as->mutex, deadline);
-    }
-
-    enum sc_acksync_wait_result ret;
-    if (as->stopped) {
-        ret = SC_ACKSYNC_WAIT_INTR;
-    } else if (as->ack >= ack) {
-        ret = SC_ACKSYNC_WAIT_OK;
-    } else {
-        assert(timed_out);
-        ret = SC_ACKSYNC_WAIT_TIMEOUT;
-    }
-    sc_mutex_unlock(&as->mutex);
-
-    return ret;
-}
-
-/**
- * Interrupt any `sc_acksync_wait()`
- */
-void
-sc_acksync_interrupt(struct sc_acksync *as) {
-    sc_mutex_lock(&as->mutex);
-    as->stopped = true;
-    sc_cond_signal(&as->cond);
-    sc_mutex_unlock(&as->mutex);
-}

app/src/util/acksync.h

@@ -1,66 +0,0 @@
-#ifndef SC_ACK_SYNC_H
-#define SC_ACK_SYNC_H
-
-#include "common.h"
-
-#include "thread.h"
-
-#define SC_SEQUENCE_INVALID 0
-
-/**
- * Helper to wait for acknowledgments
- *
- * In practice, it is used to wait for device clipboard acknowledgement from the
- * server before injecting Ctrl+v via AOA HID, in order to avoid pasting the
- * content of the old device clipboard (if Ctrl+v was injected before the
- * clipboard content was actually set).
- */
-struct sc_acksync {
-    sc_mutex mutex;
-    sc_cond cond;
-
-    bool stopped;
-
-    // Last acked value, initially SC_SEQUENCE_INVALID
-    uint64_t ack;
-};
-
-enum sc_acksync_wait_result {
-    // Acknowledgment received
-    SC_ACKSYNC_WAIT_OK,
-
-    // Timeout expired
-    SC_ACKSYNC_WAIT_TIMEOUT,
-
-    // Interrupted from another thread by sc_acksync_interrupt()
-    SC_ACKSYNC_WAIT_INTR,
-};
-
-bool
-sc_acksync_init(struct sc_acksync *as);
-
-void
-sc_acksync_destroy(struct sc_acksync *as);
-
-/**
- * Acknowledge `sequence`
- *
- * The `sequence` must be greater than (or equal to) any previous acknowledged
- * sequence.
- */
-void
-sc_acksync_ack(struct sc_acksync *as, uint64_t sequence);
-
-/**
- * Wait for acknowledgment of sequence `ack` (or higher)
- */
-enum sc_acksync_wait_result
-sc_acksync_wait(struct sc_acksync *as, uint64_t ack, sc_tick deadline);
-
-/**
- * Interrupt any `sc_acksync_wait()`
- */
-void
-sc_acksync_interrupt(struct sc_acksync *as);
-
-#endif

app/src/util/file.c

@@ -1,48 +0,0 @@
-#include "file.h"
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "util/log.h"
-
-char *
-sc_file_get_local_path(const char *name) {
-    char *executable_path = sc_file_get_executable_path();
-    if (!executable_path) {
-        return NULL;
-    }
-
-    // dirname() does not work correctly everywhere, so get the parent
-    // directory manually.
-    // See <https://github.com/Genymobile/scrcpy/issues/2619>
-    char *p = strrchr(executable_path, SC_PATH_SEPARATOR);
-    if (!p) {
-        LOGE("Unexpected executable path: \"%s\" (it should contain a '%c')",
-             executable_path, SC_PATH_SEPARATOR);
-        free(executable_path);
-        return NULL;
-    }
-
-    *p = '\0'; // modify executable_path in place
-    char *dir = executable_path;
-    size_t dirlen = strlen(dir);
-    size_t namelen = strlen(name);
-
-    size_t len = dirlen + namelen + 2; // +2: '/' and '\0'
-    char *file_path = malloc(len);
-    if (!file_path) {
-        LOGE("Could not alloc path");
-        free(executable_path);
-        return NULL;
-    }
-
-    memcpy(file_path, dir, dirlen);
-    file_path[dirlen] = SC_PATH_SEPARATOR;
-    // namelen + 1 to copy the final '\0'
-    memcpy(&file_path[dirlen + 1], name, namelen + 1);
-
-    free(executable_path);
-
-    return file_path;
-}
-

app/src/util/file.h

@@ -1,49 +0,0 @@
-#ifndef SC_FILE_H
-#define SC_FILE_H
-
-#include "common.h"
-
-#include <stdbool.h>
-
-#ifdef _WIN32
-# define SC_PATH_SEPARATOR '\\'
-#else
-# define SC_PATH_SEPARATOR '/'
-#endif
-
-#ifndef _WIN32
-/**
- * Indicate if an executable exists using $PATH
- *
- * In practice, it is only used to know if a package manager is available on
- * the system. It is only implemented on Linux.
- */
-bool
-sc_file_executable_exists(const char *file);
-#endif
-
-/**
- * Return the absolute path of the executable (the scrcpy binary)
- *
- * The result must be freed by the caller using free(). It may return NULL on
- * error.
- */
-char *
-sc_file_get_executable_path(void);
-
-/**
- * Return the absolute path of a file in the same directory as the executable
- *
- * The result must be freed by the caller using free(). It may return NULL on
- * error.
- */
-char *
-sc_file_get_local_path(const char *name);
-
-/**
- * Indicate if the file exists and is not a directory
- */
-bool
-sc_file_is_regular(const char *path);
-
-#endif

app/src/util/intr.c

@@ -1,83 +0,0 @@
-#include "intr.h"
-
-#include "util/log.h"
-
-#include <assert.h>
-
-bool
-sc_intr_init(struct sc_intr *intr) {
-    bool ok = sc_mutex_init(&intr->mutex);
-    if (!ok) {
-        LOGE("Could not init intr mutex");
-        return false;
-    }
-
-    intr->socket = SC_SOCKET_NONE;
-    intr->process = SC_PROCESS_NONE;
-
-    atomic_store_explicit(&intr->interrupted, false, memory_order_relaxed);
-
-    return true;
-}
-
-bool
-sc_intr_set_socket(struct sc_intr *intr, sc_socket socket) {
-    assert(intr->process == SC_PROCESS_NONE);
-
-    sc_mutex_lock(&intr->mutex);
-    bool interrupted =
-        atomic_load_explicit(&intr->interrupted, memory_order_relaxed);
-    if (!interrupted) {
-        intr->socket = socket;
-    }
-    sc_mutex_unlock(&intr->mutex);
-
-    return !interrupted;
-}
-
-bool
-sc_intr_set_process(struct sc_intr *intr, sc_pid pid) {
-    assert(intr->socket == SC_SOCKET_NONE);
-
-    sc_mutex_lock(&intr->mutex);
-    bool interrupted =
-        atomic_load_explicit(&intr->interrupted, memory_order_relaxed);
-    if (!interrupted) {
-        intr->process = pid;
-    }
-    sc_mutex_unlock(&intr->mutex);
-
-    return !interrupted;
-}
-
-void
-sc_intr_interrupt(struct sc_intr *intr) {
-    sc_mutex_lock(&intr->mutex);
-
-    atomic_store_explicit(&intr->interrupted, true, memory_order_relaxed);
-
-    // No more than one component to interrupt
-    assert(intr->socket == SC_SOCKET_NONE ||
-           intr->process == SC_PROCESS_NONE);
-
-    if (intr->socket != SC_SOCKET_NONE) {
-        LOGD("Interrupting socket");
-        net_interrupt(intr->socket);
-        intr->socket = SC_SOCKET_NONE;
-    }
-    if (intr->process != SC_PROCESS_NONE) {
-        LOGD("Interrupting process");
-        sc_process_terminate(intr->process);
-        intr->process = SC_PROCESS_NONE;
-    }
-
-    sc_mutex_unlock(&intr->mutex);
-}
-
-void
-sc_intr_destroy(struct sc_intr *intr) {
-    assert(intr->socket == SC_SOCKET_NONE);
-    assert(intr->process == SC_PROCESS_NONE);
-
-    sc_mutex_destroy(&intr->mutex);
-}

app/src/util/intr.h

@@ -1,78 +0,0 @@
-#ifndef SC_INTR_H
-#define SC_INTR_H
-
-#include "common.h"
-
-#include <stdatomic.h>
-#include <stdbool.h>
-
-#include "net.h"
-#include "process.h"
-#include "thread.h"
-
-/**
- * Interruptor to wake up a blocking call from another thread
- *
- * It allows to register a socket or a process before a blocking call, and
- * interrupt/close from another thread to wake up the blocking call.
- */
-struct sc_intr {
-    sc_mutex mutex;
-
-    sc_socket socket;
-    sc_pid process;
-
-    // Written protected by the mutex to avoid race conditions against
-    // sc_intr_set_socket() and sc_intr_set_process(), but can be read
-    // (atomically) without mutex
-    atomic_bool interrupted;
-};
-
-/**
- * Initialize an interruptor
- */
-bool
-sc_intr_init(struct sc_intr *intr);
-
-/**
- * Set a socket as the interruptible component
- *
- * Call with SC_SOCKET_NONE to unset.
- */
-bool
-sc_intr_set_socket(struct sc_intr *intr, sc_socket socket);
-
-/**
- * Set a process as the interruptible component
- *
- * Call with SC_PROCESS_NONE to unset.
- */
-bool
-sc_intr_set_process(struct sc_intr *intr, sc_pid socket);
-
-/**
- * Interrupt the current interruptible component
- *
- * Must be called from a different thread.
- */
-void
-sc_intr_interrupt(struct sc_intr *intr);
-
-/**
- * Read the interrupted state
- *
- * It is exposed as a static inline function because it just loads from an
- * atomic.
- */
-static inline bool
-sc_intr_is_interrupted(struct sc_intr *intr) {
-    return atomic_load_explicit(&intr->interrupted, memory_order_relaxed);
-}
-
-/**
- * Destroy the interruptor
- */
-void
-sc_intr_destroy(struct sc_intr *intr);
-
-#endif

app/src/util/net.c

@@ -7,7 +7,6 @@
 #include "log.h"
 
 #ifdef __WINDOWS__
-# include <ws2tcpip.h>
   typedef int socklen_t;
   typedef SOCKET sc_raw_socket;
 #else
@@ -47,13 +46,13 @@ static inline sc_socket
 wrap(sc_raw_socket sock) {
 #ifdef __WINDOWS__
     if (sock == INVALID_SOCKET) {
-        return SC_SOCKET_NONE;
+        return SC_INVALID_SOCKET;
     }
 
     struct sc_socket_windows *socket = malloc(sizeof(*socket));
     if (!socket) {
         closesocket(sock);
-        return SC_SOCKET_NONE;
+        return SC_INVALID_SOCKET;
     }
 
     socket->socket = sock;
@@ -68,7 +67,7 @@ wrap(sc_raw_socket sock) {
 static inline sc_raw_socket
 unwrap(sc_socket socket) {
 #ifdef __WINDOWS__
-    if (socket == SC_SOCKET_NONE) {
+    if (socket == SC_INVALID_SOCKET) {
         return INVALID_SOCKET;
     }
 
@@ -95,18 +94,13 @@ net_perror(const char *s) {
 }
 
 sc_socket
-net_socket(void) {
+net_connect(uint32_t addr, uint16_t port) {
     sc_raw_socket raw_sock = socket(AF_INET, SOCK_STREAM, 0);
     sc_socket sock = wrap(raw_sock);
-    if (sock == SC_SOCKET_NONE) {
+    if (sock == SC_INVALID_SOCKET) {
         net_perror("socket");
+        return SC_INVALID_SOCKET;
     }
-    return sock;
-}
-
-bool
-net_connect(sc_socket socket, uint32_t addr, uint16_t port) {
-    sc_raw_socket raw_sock = unwrap(socket);
 
     SOCKADDR_IN sin;
     sin.sin_family = AF_INET;
@@ -115,15 +109,21 @@ net_connect(sc_socket socket, uint32_t addr, uint16_t port) {
 
     if (connect(raw_sock, (SOCKADDR *) &sin, sizeof(sin)) == SOCKET_ERROR) {
         net_perror("connect");
-        return false;
+        net_close(sock);
+        return SC_INVALID_SOCKET;
     }
 
-    return true;
+    return sock;
 }
 
-bool
+sc_socket
-net_listen(sc_socket socket, uint32_t addr, uint16_t port, int backlog) {
+net_listen(uint32_t addr, uint16_t port, int backlog) {
-    sc_raw_socket raw_sock = unwrap(socket);
+    sc_raw_socket raw_sock = socket(AF_INET, SOCK_STREAM, 0);
+    sc_socket sock = wrap(raw_sock);
+    if (sock == SC_INVALID_SOCKET) {
+        net_perror("socket");
+        return SC_INVALID_SOCKET;
+    }
 
     int reuse = 1;
     if (setsockopt(raw_sock, SOL_SOCKET, SO_REUSEADDR, (const void *) &reuse,
@@ -138,15 +138,17 @@ net_listen(sc_socket socket, uint32_t addr, uint16_t port, int backlog) {
 
     if (bind(raw_sock, (SOCKADDR *) &sin, sizeof(sin)) == SOCKET_ERROR) {
         net_perror("bind");
-        return false;
+        net_close(sock);
+        return SC_INVALID_SOCKET;
     }
 
     if (listen(raw_sock, backlog) == SOCKET_ERROR) {
         net_perror("listen");
-        return false;
+        net_close(sock);
+        return SC_INVALID_SOCKET;
     }
 
-    return true;
+    return sock;
 }
 
 sc_socket
@@ -196,7 +198,7 @@ net_send_all(sc_socket socket, const void *buf, size_t len) {
 
 bool
 net_interrupt(sc_socket socket) {
-    assert(socket != SC_SOCKET_NONE);
+    assert(socket != SC_INVALID_SOCKET);
 
     sc_raw_socket raw_sock = unwrap(socket);
 
@@ -226,15 +228,3 @@ net_close(sc_socket socket) {
     return !close(raw_sock);
 #endif
 }
-
-bool
-net_parse_ipv4(const char *s, uint32_t *ipv4) {
-    struct in_addr addr;
-    if (!inet_pton(AF_INET, s, &addr)) {
-        LOGE("Invalid IPv4 address: %s", s);
-        return false;
-    }
-
-    *ipv4 = ntohl(addr.s_addr);
-    return true;
-}

app/src/util/net.h

@@ -11,7 +11,7 @@
 
 # include <winsock2.h>
 # include <stdatomic.h>
-# define SC_SOCKET_NONE NULL
+# define SC_INVALID_SOCKET NULL
   typedef struct sc_socket_windows {
       SOCKET socket;
       atomic_flag closed;
@@ -20,13 +20,10 @@
 #else // not __WINDOWS__
 
 # include <sys/socket.h>
-# define SC_SOCKET_NONE -1
+# define SC_INVALID_SOCKET -1
   typedef int sc_socket;
-
 #endif
 
-#define IPV4_LOCALHOST 0x7F000001
-
 bool
 net_init(void);
 
@@ -34,13 +31,10 @@ void
 net_cleanup(void);
 
 sc_socket
-net_socket(void);
+net_connect(uint32_t addr, uint16_t port);
 
-bool
+sc_socket
-net_connect(sc_socket socket, uint32_t addr, uint16_t port);
+net_listen(uint32_t addr, uint16_t port, int backlog);
-
-bool
-net_listen(sc_socket socket, uint32_t addr, uint16_t port, int backlog);
 
 sc_socket
 net_accept(sc_socket server_socket);
@@ -68,10 +62,4 @@ net_interrupt(sc_socket socket);
 bool
 net_close(sc_socket socket);
 
-/**
- * Parse `ip` "xxx.xxx.xxx.xxx" to an IPv4 host representation
- */
-bool
-net_parse_ipv4(const char *ip, uint32_t *ipv4);
-
 #endif

app/src/util/net_intr.c

@@ -1,97 +0,0 @@
-#include "net_intr.h"
-
-bool
-net_connect_intr(struct sc_intr *intr, sc_socket socket, uint32_t addr,
-                 uint16_t port) {
-    if (!sc_intr_set_socket(intr, socket)) {
-        // Already interrupted
-        return false;
-    }
-
-    bool ret = net_connect(socket, addr, port);
-
-    sc_intr_set_socket(intr, SC_SOCKET_NONE);
-    return ret;
-}
-
-bool
-net_listen_intr(struct sc_intr *intr, sc_socket socket, uint32_t addr,
-                uint16_t port, int backlog) {
-    if (!sc_intr_set_socket(intr, socket)) {
-        // Already interrupted
-        return false;
-    }
-
-    bool ret = net_listen(socket, addr, port, backlog);
-
-    sc_intr_set_socket(intr, SC_SOCKET_NONE);
-    return ret;
-}
-
-sc_socket
-net_accept_intr(struct sc_intr *intr, sc_socket server_socket) {
-    if (!sc_intr_set_socket(intr, server_socket)) {
-        // Already interrupted
-        return SC_SOCKET_NONE;
-    }
-
-    sc_socket socket = net_accept(server_socket);
-
-    sc_intr_set_socket(intr, SC_SOCKET_NONE);
-    return socket;
-}
-
-ssize_t
-net_recv_intr(struct sc_intr *intr, sc_socket socket, void *buf, size_t len) {
-    if (!sc_intr_set_socket(intr, socket)) {
-        // Already interrupted
-        return -1;
-    }
-
-    ssize_t r = net_recv(socket, buf, len);
-
-    sc_intr_set_socket(intr, SC_SOCKET_NONE);
-    return r;
-}
-
-ssize_t
-net_recv_all_intr(struct sc_intr *intr, sc_socket socket, void *buf,
-                  size_t len) {
-    if (!sc_intr_set_socket(intr, socket)) {
-        // Already interrupted
-        return -1;
-    }
-
-    ssize_t r = net_recv_all(socket, buf, len);
-
-    sc_intr_set_socket(intr, SC_SOCKET_NONE);
-    return r;
-}
-
-ssize_t
-net_send_intr(struct sc_intr *intr, sc_socket socket, const void *buf,
-              size_t len) {
-    if (!sc_intr_set_socket(intr, socket)) {
-        // Already interrupted
-        return -1;
-    }
-
-    ssize_t w = net_send(socket, buf, len);
-
-    sc_intr_set_socket(intr, SC_SOCKET_NONE);
-    return w;
-}
-
-ssize_t
-net_send_all_intr(struct sc_intr *intr, sc_socket socket, const void *buf,
-                  size_t len) {
-    if (!sc_intr_set_socket(intr, socket)) {
-        // Already interrupted
-        return -1;
-    }
-
-    ssize_t w = net_send_all(socket, buf, len);
-
-    sc_intr_set_socket(intr, SC_SOCKET_NONE);
-    return w;
-}

app/src/util/net_intr.h

@@ -1,35 +0,0 @@
-#ifndef SC_NET_INTR_H
-#define SC_NET_INTR_H
-
-#include "common.h"
-
-#include "intr.h"
-#include "net.h"
-
-bool
-net_connect_intr(struct sc_intr *intr, sc_socket socket, uint32_t addr,
-                 uint16_t port);
-
-bool
-net_listen_intr(struct sc_intr *intr, sc_socket socket, uint32_t addr,
-                uint16_t port, int backlog);
-
-sc_socket
-net_accept_intr(struct sc_intr *intr, sc_socket server_socket);
-
-ssize_t
-net_recv_intr(struct sc_intr *intr, sc_socket socket, void *buf, size_t len);
-
-ssize_t
-net_recv_all_intr(struct sc_intr *intr, sc_socket socket, void *buf,
-                  size_t len);
-
-ssize_t
-net_send_intr(struct sc_intr *intr, sc_socket socket, const void *buf,
-              size_t len);
-
-ssize_t
-net_send_all_intr(struct sc_intr *intr, sc_socket socket, const void *buf,
-                  size_t len);
-
-#endif

app/src/util/process.c

@@ -1,25 +1,18 @@
 #include "process.h"
 
-#include <assert.h>
 #include <libgen.h>
 #include "log.h"
 
-enum sc_process_result
-sc_process_execute(const char *const argv[], sc_pid *pid) {
-    return sc_process_execute_p(argv, pid, NULL, NULL, NULL);
-}
-
 bool
-sc_process_check_success(sc_pid pid, const char *name, bool close) {
+process_check_success(process_t proc, const char *name, bool close) {
-    if (pid == SC_PROCESS_NONE) {
+    if (proc == PROCESS_NONE) {
         LOGE("Could not execute \"%s\"", name);
         return false;
     }
-    sc_exit_code exit_code = sc_process_wait(pid, close);
+    exit_code_t exit_code = process_wait(proc, close);
     if (exit_code) {
-        if (exit_code != SC_EXIT_CODE_NONE) {
+        if (exit_code != NO_EXIT_CODE) {
-            LOGE("\"%s\" returned with value %" SC_PRIexitcode, name,
+            LOGE("\"%s\" returned with value %" PRIexitcode, name, exit_code);
-                 exit_code);
         } else {
             LOGE("\"%s\" exited unexpectedly", name);
         }
@@ -28,11 +21,52 @@ sc_process_check_success(sc_pid pid, const char *name, bool close) {
     return true;
 }
 
+char *
+get_local_file_path(const char *name) {
+    char *executable_path = get_executable_path();
+    if (!executable_path) {
+        return NULL;
+    }
+
+    // dirname() does not work correctly everywhere, so get the parent
+    // directory manually.
+    // See <https://github.com/Genymobile/scrcpy/issues/2619>
+    char *p = strrchr(executable_path, PATH_SEPARATOR);
+    if (!p) {
+        LOGE("Unexpected executable path: \"%s\" (it should contain a '%c')",
+             executable_path, PATH_SEPARATOR);
+        free(executable_path);
+        return NULL;
+    }
+
+    *p = '\0'; // modify executable_path in place
+    char *dir = executable_path;
+    size_t dirlen = strlen(dir);
+    size_t namelen = strlen(name);
+
+    size_t len = dirlen + namelen + 2; // +2: '/' and '\0'
+    char *file_path = malloc(len);
+    if (!file_path) {
+        LOGE("Could not alloc path");
+        free(executable_path);
+        return NULL;
+    }
+
+    memcpy(file_path, dir, dirlen);
+    file_path[dirlen] = PATH_SEPARATOR;
+    // namelen + 1 to copy the final '\0'
+    memcpy(&file_path[dirlen + 1], name, namelen + 1);
+
+    free(executable_path);
+
+    return file_path;
+}
+
 ssize_t
-sc_pipe_read_all(sc_pipe pipe, char *data, size_t len) {
+read_pipe_all(pipe_t pipe, char *data, size_t len) {
     size_t copied = 0;
     while (len > 0) {
-        ssize_t r = sc_pipe_read(pipe, data, len);
+        ssize_t r = read_pipe(pipe, data, len);
         if (r <= 0) {
             return copied ? (ssize_t) copied : r;
         }
@@ -42,80 +76,3 @@ sc_pipe_read_all(sc_pipe pipe, char *data, size_t len) {
     }
     return copied;
 }
-
-static int
-run_observer(void *data) {
-    struct sc_process_observer *observer = data;
-    sc_process_wait(observer->pid, false); // ignore exit code
-
-    sc_mutex_lock(&observer->mutex);
-    observer->terminated = true;
-    sc_cond_signal(&observer->cond_terminated);
-    sc_mutex_unlock(&observer->mutex);
-
-    if (observer->listener) {
-        observer->listener->on_terminated(observer->listener_userdata);
-    }
-
-    return 0;
-}
-
-bool
-sc_process_observer_init(struct sc_process_observer *observer, sc_pid pid,
-                         const struct sc_process_listener *listener,
-                         void *listener_userdata) {
-    // Either no listener, or on_terminated() is defined
-    assert(!listener || listener->on_terminated);
-
-    bool ok = sc_mutex_init(&observer->mutex);
-    if (!ok) {
-        return false;
-    }
-
-    ok = sc_cond_init(&observer->cond_terminated);
-    if (!ok) {
-        sc_mutex_destroy(&observer->mutex);
-        return false;
-    }
-
-    observer->pid = pid;
-    observer->listener = listener;
-    observer->listener_userdata = listener_userdata;
-    observer->terminated = false;
-
-    ok = sc_thread_create(&observer->thread, run_observer, "process_observer",
-                          observer);
-    if (!ok) {
-        sc_cond_destroy(&observer->cond_terminated);
-        sc_mutex_destroy(&observer->mutex);
-        return false;
-    }
-
-    return true;
-}
-
-bool
-sc_process_observer_timedwait(struct sc_process_observer *observer,
-                              sc_tick deadline) {
-    sc_mutex_lock(&observer->mutex);
-    bool timed_out = false;
-    while (!observer->terminated && !timed_out) {
-        timed_out = !sc_cond_timedwait(&observer->cond_terminated,
-                                       &observer->mutex, deadline);
-    }
-    bool terminated = observer->terminated;
-    sc_mutex_unlock(&observer->mutex);
-
-    return terminated;
-}
-
-void
-sc_process_observer_join(struct sc_process_observer *observer) {
-    sc_thread_join(&observer->thread, NULL);
-}
-
-void
-sc_process_observer_destroy(struct sc_process_observer *observer) {
-    sc_cond_destroy(&observer->cond_terminated);
-    sc_mutex_destroy(&observer->mutex);
-}

app/src/util/process.h

@@ -4,173 +4,102 @@
 #include "common.h"
 
 #include <stdbool.h>
-#include "util/thread.h"
 
 #ifdef _WIN32
 
  // not needed here, but winsock2.h must never be included AFTER windows.h
 # include <winsock2.h>
 # include <windows.h>
-# define SC_PRIexitcode "lu"
+# define PATH_SEPARATOR '\\'
+# define PRIexitcode "lu"
 // <https://stackoverflow.com/a/44383330/1987178>
-# define SC_PRIsizet "Iu"
+# define PRIsizet "Iu"
-# define SC_PROCESS_NONE NULL
+# define PROCESS_NONE NULL
-# define SC_EXIT_CODE_NONE -1u // max value as unsigned
+# define NO_EXIT_CODE -1u // max value as unsigned
-  typedef HANDLE sc_pid;
+  typedef HANDLE process_t;
-  typedef DWORD sc_exit_code;
+  typedef DWORD exit_code_t;
-  typedef HANDLE sc_pipe;
+  typedef HANDLE pipe_t;
 
 #else
 
 # include <sys/types.h>
-# define SC_PRIsizet "zu"
+# define PATH_SEPARATOR '/'
-# define SC_PRIexitcode "d"
+# define PRIsizet "zu"
-# define SC_PROCESS_NONE -1
+# define PRIexitcode "d"
-# define SC_EXIT_CODE_NONE -1
+# define PROCESS_NONE -1
-  typedef pid_t sc_pid;
+# define NO_EXIT_CODE -1
-  typedef int sc_exit_code;
+  typedef pid_t process_t;
-  typedef int sc_pipe;
+  typedef int exit_code_t;
+  typedef int pipe_t;
 
 #endif
 
-struct sc_process_listener {
+enum process_result {
-    void (*on_terminated)(void *userdata);
+    PROCESS_SUCCESS,
+    PROCESS_ERROR_GENERIC,
+    PROCESS_ERROR_MISSING_BINARY,
 };
 
-/**
+// execute the command and write the result to the output parameter "process"
- * Tool to observe process termination
+enum process_result
- *
+process_execute(const char *const argv[], process_t *process);
- * To keep things simple and multiplatform, it runs a separate thread to wait
- * for process termination (without closing the process to avoid race
- * conditions).
- *
- * It allows a caller to block until the process is terminated (with a
- * timeout), and to be notified asynchronously from the observer thread.
- *
- * The process is not owned by the observer (the observer will never close it).
- */
-struct sc_process_observer {
-    sc_pid pid;
 
-    sc_mutex mutex;
+enum process_result
-    sc_cond cond_terminated;
+process_execute_redirect(const char *const argv[], process_t *process,
-    bool terminated;
+                         pipe_t *pipe_stdin, pipe_t *pipe_stdout,
+                         pipe_t *pipe_stderr);
 
-    sc_thread thread;
-    const struct sc_process_listener *listener;
-    void *listener_userdata;
-};
-
-enum sc_process_result {
-    SC_PROCESS_SUCCESS,
-    SC_PROCESS_ERROR_GENERIC,
-    SC_PROCESS_ERROR_MISSING_BINARY,
-};
-
-/**
- * Execute the command and write the process id to `pid`
- */
-enum sc_process_result
-sc_process_execute(const char *const argv[], sc_pid *pid);
-
-/**
- * Execute the command and write the process id to `pid`
- *
- * If not NULL, provide a pipe for stdin (`pin`), stdout (`pout`) and stderr
- * (`perr`).
- */
-enum sc_process_result
-sc_process_execute_p(const char *const argv[], sc_pid *pid,
-                     sc_pipe *pin, sc_pipe *pout, sc_pipe *perr);
-
-/**
- * Kill the process
- */
 bool
-sc_process_terminate(sc_pid pid);
+process_terminate(process_t pid);
 
-/**
+// kill the process
- * Wait and close the process (similar to waitpid())
+bool
- *
+process_terminate(process_t pid);
- * The `close` flag indicates if the process must be _closed_ (reaped) (passing
- * false is equivalent to enable WNOWAIT in waitid()).
- */
-sc_exit_code
-sc_process_wait(sc_pid pid, bool close);
 
-/**
+// wait and close the process (like waitpid())
- * Close (reap) the process
+// the "close" flag indicates if the process must be "closed" (reaped)
- *
+// (passing false is equivalent to enable WNOWAIT in waitid())
- * Semantically:
+exit_code_t
- *    sc_process_wait(close) = sc_process_wait(noclose) + sc_process_close()
+process_wait(process_t pid, bool close);
- */
+
+// close the process
+//
+// Semantically, process_wait(close) = process_wait(noclose) + process_close
 void
-sc_process_close(sc_pid pid);
+process_close(process_t pid);
 
-/**
+// convenience function to wait for a successful process execution
- * Convenience function to wait for a successful process execution
+// automatically log process errors with the provided process name
- *
- * Automatically log process errors with the provided process name.
- */
 bool
-sc_process_check_success(sc_pid pid, const char *name, bool close);
+process_check_success(process_t proc, const char *name, bool close);
+
+#ifndef _WIN32
+// only used to find package manager, not implemented for Windows
+bool
+search_executable(const char *file);
+#endif
+
+// return the absolute path of the executable (the scrcpy binary)
+// may be NULL on error; to be freed by free()
+char *
+get_executable_path(void);
+
+// Return the absolute path of a file in the same directory as he executable.
+// May be NULL on error. To be freed by free().
+char *
+get_local_file_path(const char *name);
+
+// returns true if the file exists and is not a directory
+bool
+is_regular_file(const char *path);
 
-/**
- * Read from the pipe
- *
- * Same semantic as read().
- */
 ssize_t
-sc_pipe_read(sc_pipe pipe, char *data, size_t len);
+read_pipe(pipe_t pipe, char *data, size_t len);
 
-/**
- * Read exactly `len` chars from a pipe (unless EOF)
- */
 ssize_t
-sc_pipe_read_all(sc_pipe pipe, char *data, size_t len);
+read_pipe_all(pipe_t pipe, char *data, size_t len);
 
-/**
- * Close the pipe
- */
 void
-sc_pipe_close(sc_pipe pipe);
+close_pipe(pipe_t pipe);
-
-/**
- * Start observing process
- *
- * The listener is optional. If set, its callback will be called from the
- * observer thread once the process is terminated.
- */
-bool
-sc_process_observer_init(struct sc_process_observer *observer, sc_pid pid,
-                         const struct sc_process_listener *listener,
-                         void *listener_userdata);
-
-/**
- * Wait for process termination until a deadline
- *
- * Return true if the process is already terminated. Return false if the
- * process terminatation has not been detected yet (however, it may have
- * terminated in the meantime).
- *
- * To wait without timeout/deadline, just use sc_process_wait() instead.
- */
-bool
-sc_process_observer_timedwait(struct sc_process_observer *observer,
-                              sc_tick deadline);
-
-/**
- * Join the observer thread
- */
-void
-sc_process_observer_join(struct sc_process_observer *observer);
-
-/**
- * Destroy the observer
- *
- * This does not close the associated process.
- */
-void
-sc_process_observer_destroy(struct sc_process_observer *observer);
 
 #endif

app/src/util/process_intr.c

@@ -1,50 +0,0 @@
-#include "process_intr.h"
-
-bool
-sc_process_check_success_intr(struct sc_intr *intr, sc_pid pid,
-                              const char *name, bool close) {
-    if (!sc_intr_set_process(intr, pid)) {
-        // Already interrupted
-        return false;
-    }
-
-    // Always pass close=false, interrupting would be racy otherwise
-    bool ret = sc_process_check_success(pid, name, false);
-
-    sc_intr_set_process(intr, SC_PROCESS_NONE);
-
-    if (close) {
-        // Close separately
-        sc_process_close(pid);
-    }
-
-    return ret;
-}
-
-ssize_t
-sc_pipe_read_intr(struct sc_intr *intr, sc_pid pid, sc_pipe pipe, char *data,
-                  size_t len) {
-    if (!sc_intr_set_process(intr, pid)) {
-        // Already interrupted
-        return false;
-    }
-
-    ssize_t ret = sc_pipe_read(pipe, data, len);
-
-    sc_intr_set_process(intr, SC_PROCESS_NONE);
-    return ret;
-}
-
-ssize_t
-sc_pipe_read_all_intr(struct sc_intr *intr, sc_pid pid, sc_pipe pipe,
-                      char *data, size_t len) {
-    if (!sc_intr_set_process(intr, pid)) {
-        // Already interrupted
-        return false;
-    }
-
-    ssize_t ret = sc_pipe_read_all(pipe, data, len);
-
-    sc_intr_set_process(intr, SC_PROCESS_NONE);
-    return ret;
-}

app/src/util/process_intr.h

@@ -1,21 +0,0 @@
-#ifndef SC_PROCESS_INTR_H
-#define SC_PROCESS_INTR_H
-
-#include "common.h"
-
-#include "intr.h"
-#include "process.h"
-
-bool
-sc_process_check_success_intr(struct sc_intr *intr, sc_pid pid,
-                              const char *name, bool close);
-
-ssize_t
-sc_pipe_read_intr(struct sc_intr *intr, sc_pid pid, sc_pipe pipe, char *data,
-                  size_t len);
-
-ssize_t
-sc_pipe_read_all_intr(struct sc_intr *intr, sc_pid pid, sc_pipe pipe,
-                      char *data, size_t len);
-
-#endif

app/src/util/str.h

@@ -1,117 +0,0 @@
-#ifndef SC_STR_H
-#define SC_STR_H
-
-#include "common.h"
-
-#include <stdbool.h>
-#include <stddef.h>
-
-/**
- * Like strncpy(), except:
- *  - it copies at most n-1 chars
- *  - the dest string is nul-terminated
- *  - it does not write useless bytes if strlen(src) < n
- *  - it returns the number of chars actually written (max n-1) if src has
- *    been copied completely, or n if src has been truncated
- */
-size_t
-sc_strncpy(char *dest, const char *src, size_t n);
-
-/**
- * Join tokens by separator `sep` into `dst`
- *
- * Return the number of chars actually written (max n-1) if no truncation
- * occurred, or n if truncated.
- */
-size_t
-sc_str_join(char *dst, const char *const tokens[], char sep, size_t n);
-
-/**
- * Quote a string
- *
- * Return a new allocated string, surrounded with quotes (`"`).
- */
-char *
-sc_str_quote(const char *src);
-
-/**
- * Parse `s` as an integer into `out`
- *
- * Return true if the conversion succeeded, false otherwise.
- */
-bool
-sc_str_parse_integer(const char *s, long *out);
-
-/**
- * Parse `s` as integers separated by `sep` (for example `1234:2000`) into `out`
- *
- * Returns the number of integers on success, 0 on failure.
- */
-size_t
-sc_str_parse_integers(const char *s, const char sep, size_t max_items,
-                      long *out);
-
-/**
- * Parse `s` as an integer into `out`
- *
- * Like `sc_str_parse_integer()`, but accept 'k'/'K' (x1000) and 'm'/'M'
- * (x1000000) as suffixes.
- *
- * Return true if the conversion succeeded, false otherwise.
- */
-bool
-sc_str_parse_integer_with_suffix(const char *s, long *out);
-
-/**
- * Search `s` in the list separated by `sep`
- *
- * For example, sc_str_list_contains("a,bc,def", ',', "bc") returns true.
- */
-bool
-sc_str_list_contains(const char *list, char sep, const char *s);
-
-/**
- * Return the index to truncate a UTF-8 string at a valid position
- */
-size_t
-sc_str_utf8_truncation_index(const char *utf8, size_t max_len);
-
-#ifdef _WIN32
-/**
- * Convert a UTF-8 string to a wchar_t string
- *
- * Return the new allocated string, to be freed by the caller.
- */
-wchar_t *
-sc_str_to_wchars(const char *utf8);
-
-/**
- * Convert a wchar_t string to a UTF-8 string
- *
- * Return the new allocated string, to be freed by the caller.
- */
-char *
-sc_str_from_wchars(const wchar_t *s);
-#endif
-
-/**
- * Wrap input lines to fit in `columns` columns
- *
- * Break input lines at word boundaries (spaces) so that they fit in `columns`
- * columns, left-indented by `indent` spaces.
- */
-char *
-sc_str_wrap_lines(const char *input, unsigned columns, unsigned indent);
-
-/**
- * Truncate the data after any of the characters from `endchars`
- *
- * An '\0' is always written at the end of the data, even if no newline
- * character is encountered.
- *
- * Return the size of the resulting line.
- */
-size_t
-sc_str_truncate(char *data, size_t len, const char *endchars);
-
-#endif

app/src/util/str_util.c

@@ -1,11 +1,9 @@
-#include "str.h"
+#include "str_util.h"
 
-#include <assert.h>
 #include <errno.h>
 #include <limits.h>
 #include <stdlib.h>
 #include <string.h>
-#include "util/strbuf.h"
 
 #ifdef _WIN32
 # include <windows.h>
@@ -13,7 +11,7 @@
 #endif
 
 size_t
-sc_strncpy(char *dest, const char *src, size_t n) {
+xstrncpy(char *dest, const char *src, size_t n) {
     size_t i;
     for (i = 0; i < n - 1 && src[i] != '\0'; ++i)
         dest[i] = src[i];
@@ -23,7 +21,7 @@ sc_strncpy(char *dest, const char *src, size_t n) {
 }
 
 size_t
-sc_str_join(char *dst, const char *const tokens[], char sep, size_t n) {
+xstrjoin(char *dst, const char *const tokens[], char sep, size_t n) {
     const char *const *remaining = tokens;
     const char *token = *remaining++;
     size_t i = 0;
@@ -33,7 +31,7 @@ sc_str_join(char *dst, const char *const tokens[], char sep, size_t n) {
             if (i == n)
                 goto truncated;
         }
-        size_t w = sc_strncpy(dst + i, token, n - i);
+        size_t w = xstrncpy(dst + i, token, n - i);
         if (w >= n - i)
             goto truncated;
         i += w;
@@ -47,7 +45,7 @@ truncated:
 }
 
 char *
-sc_str_quote(const char *src) {
+strquote(const char *src) {
     size_t len = strlen(src);
     char *quoted = malloc(len + 3);
     if (!quoted) {
@@ -61,7 +59,7 @@ sc_str_quote(const char *src) {
 }
 
 bool
-sc_str_parse_integer(const char *s, long *out) {
+parse_integer(const char *s, long *out) {
     char *endptr;
     if (*s == '\0') {
         return false;
@@ -80,8 +78,7 @@ sc_str_parse_integer(const char *s, long *out) {
 }
 
 size_t
-sc_str_parse_integers(const char *s, const char sep, size_t max_items,
+parse_integers(const char *s, const char sep, size_t max_items, long *out) {
-                      long *out) {
     size_t count = 0;
     char *endptr;
     do {
@@ -110,7 +107,7 @@ sc_str_parse_integers(const char *s, const char sep, size_t max_items,
 }
 
 bool
-sc_str_parse_integer_with_suffix(const char *s, long *out) {
+parse_integer_with_suffix(const char *s, long *out) {
     char *endptr;
     if (*s == '\0') {
         return false;
@@ -144,7 +141,7 @@ sc_str_parse_integer_with_suffix(const char *s, long *out) {
 }
 
 bool
-sc_str_list_contains(const char *list, char sep, const char *s) {
+strlist_contains(const char *list, char sep, const char *s) {
     char *p;
     do {
         p = strchr(list, sep);
@@ -162,7 +159,7 @@ sc_str_list_contains(const char *list, char sep, const char *s) {
 }
 
 size_t
-sc_str_utf8_truncation_index(const char *utf8, size_t max_len) {
+utf8_truncation_index(const char *utf8, size_t max_len) {
     size_t len = strlen(utf8);
     if (len <= max_len) {
         return len;
@@ -180,7 +177,7 @@ sc_str_utf8_truncation_index(const char *utf8, size_t max_len) {
 #ifdef _WIN32
 
 wchar_t *
-sc_str_to_wchars(const char *utf8) {
+utf8_to_wide_char(const char *utf8) {
     int len = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0);
     if (!len) {
         return NULL;
@@ -196,7 +193,7 @@ sc_str_to_wchars(const char *utf8) {
 }
 
 char *
-sc_str_from_wchars(const wchar_t *ws) {
+utf8_from_wide_char(const wchar_t *ws) {
     int len = WideCharToMultiByte(CP_UTF8, 0, ws, -1, NULL, 0, NULL, NULL);
     if (!len) {
         return NULL;
@@ -212,90 +209,3 @@ sc_str_from_wchars(const wchar_t *ws) {
 }
 
 #endif
-
-char *
-sc_str_wrap_lines(const char *input, unsigned columns, unsigned indent) {
-    assert(indent < columns);
-
-    struct sc_strbuf buf;
-
-    // The output string should not be much longer than the input string (just
-    // a few '\n' added), so this initial capacity should hopefully almost
-    // always avoid internal realloc() in string buffer
-    size_t cap = strlen(input) * 3 / 2;
-
-    if (!sc_strbuf_init(&buf, cap)) {
-        return false;
-    }
-
-#define APPEND(S,N) if (!sc_strbuf_append(&buf, S, N)) goto error
-#define APPEND_CHAR(C) if (!sc_strbuf_append_char(&buf, C)) goto error
-#define APPEND_N(C,N) if (!sc_strbuf_append_n(&buf, C, N)) goto error
-#define APPEND_INDENT() if (indent) APPEND_N(' ', indent)
-
-    APPEND_INDENT();
-
-    // The last separator encountered, it must be inserted only conditionnaly,
-    // depending on the next token
-    char pending = 0;
-
-    // col tracks the current column in the current line
-    size_t col = indent;
-    while (*input) {
-        size_t sep_idx = strcspn(input, "\n ");
-        size_t new_col = col + sep_idx;
-        if (pending == ' ') {
-            // The pending space counts
-            ++new_col;
-        }
-        bool wrap = new_col > columns;
-
-        char sep = input[sep_idx];
-        if (sep == ' ')
-            sep = ' ';
-
-        if (wrap) {
-            APPEND_CHAR('\n');
-            APPEND_INDENT();
-            col = indent;
-        } else if (pending) {
-            APPEND_CHAR(pending);
-            ++col;
-            if (pending == '\n')
-            {
-                APPEND_INDENT();
-                col = indent;
-            }
-        }
-
-        if (sep_idx) {
-            APPEND(input, sep_idx);
-            col += sep_idx;
-        }
-
-        pending = sep;
-
-        input += sep_idx;
-        if (*input != '\0') {
-            // Skip the separator
-            ++input;
-        }
-    }
-
-    if (pending)
-        APPEND_CHAR(pending);
-
-    return buf.s;
-
-error:
-    free(buf.s);
-    return NULL;
-}
-
-size_t
-sc_str_truncate(char *data, size_t len, const char *endchars) {
-    data[len - 1] = '\0';
-    size_t idx = strcspn(data, endchars);
-    data[idx] = '\0';
-    return idx;
-}

app/src/util/str_util.h

@@ -0,0 +1,65 @@
+#ifndef STRUTIL_H
+#define STRUTIL_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <stddef.h>
+
+// like strncpy, except:
+//  - it copies at most n-1 chars
+//  - the dest string is nul-terminated
+//  - it does not write useless bytes if strlen(src) < n
+//  - it returns the number of chars actually written (max n-1) if src has
+//    been copied completely, or n if src has been truncated
+size_t
+xstrncpy(char *dest, const char *src, size_t n);
+
+// join tokens by sep into dst
+// returns the number of chars actually written (max n-1) if no truncation
+// occurred, or n if truncated
+size_t
+xstrjoin(char *dst, const char *const tokens[], char sep, size_t n);
+
+// quote a string
+// returns the new allocated string, to be freed by the caller
+char *
+strquote(const char *src);
+
+// parse s as an integer into value
+// returns true if the conversion succeeded, false otherwise
+bool
+parse_integer(const char *s, long *out);
+
+// parse s as integers separated by sep (for example '1234:2000')
+// returns the number of integers on success, 0 on failure
+size_t
+parse_integers(const char *s, const char sep, size_t max_items, long *out);
+
+// parse s as an integer into value
+// like parse_integer(), but accept 'k'/'K' (x1000) and 'm'/'M' (x1000000) as
+// suffix
+// returns true if the conversion succeeded, false otherwise
+bool
+parse_integer_with_suffix(const char *s, long *out);
+
+// search s in the list separated by sep
+// for example, strlist_contains("a,bc,def", ',', "bc") returns true
+bool
+strlist_contains(const char *list, char sep, const char *s);
+
+// return the index to truncate a UTF-8 string at a valid position
+size_t
+utf8_truncation_index(const char *utf8, size_t max_len);
+
+#ifdef _WIN32
+// convert a UTF-8 string to a wchar_t string
+// returns the new allocated string, to be freed by the caller
+wchar_t *
+utf8_to_wide_char(const char *utf8);
+
+char *
+utf8_from_wide_char(const wchar_t *s);
+#endif
+
+#endif

app/src/util/strbuf.c

@@ -1,87 +0,0 @@
-#include "strbuf.h"
-
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <stdio.h>
-
-bool
-sc_strbuf_init(struct sc_strbuf *buf, size_t init_cap) {
-    buf->s = malloc(init_cap + 1); // +1 for '\0'
-    if (!buf->s) {
-        return false;
-    }
-
-    buf->len = 0;
-    buf->cap = init_cap;
-    return true;
-}
-
-static bool
-sc_strbuf_reserve(struct sc_strbuf *buf, size_t len) {
-    if (buf->len + len > buf->cap) {
-        size_t new_cap = buf->cap * 3 / 2 + len;
-        char *s = realloc(buf->s, new_cap + 1); // +1 for '\0'
-        if (!s) {
-            // Leave the old buf->s
-            return false;
-        }
-        buf->s = s;
-        buf->cap = new_cap;
-    }
-    return true;
-}
-
-bool
-sc_strbuf_append(struct sc_strbuf *buf, const char *s, size_t len) {
-    assert(s);
-    assert(*s);
-    assert(strlen(s) >= len);
-    if (!sc_strbuf_reserve(buf, len)) {
-        return false;
-    }
-
-    memcpy(&buf->s[buf->len], s, len);
-    buf->len += len;
-    buf->s[buf->len] = '\0';
-
-    return true;
-}
-
-bool
-sc_strbuf_append_char(struct sc_strbuf *buf, const char c) {
-    if (!sc_strbuf_reserve(buf, 1)) {
-        return false;
-    }
-
-    buf->s[buf->len] = c;
-    buf->len ++;
-    buf->s[buf->len] = '\0';
-
-    return true;
-}
-
-bool
-sc_strbuf_append_n(struct sc_strbuf *buf, const char c, size_t n) {
-    if (!sc_strbuf_reserve(buf, n)) {
-        return false;
-    }
-
-    memset(&buf->s[buf->len], c, n);
-    buf->len += n;
-    buf->s[buf->len] = '\0';
-
-    return true;
-}
-
-void
-sc_strbuf_shrink(struct sc_strbuf *buf) {
-    assert(buf->len <= buf->cap);
-    if (buf->len != buf->cap) {
-        char *s = realloc(buf->s, buf->len + 1); // +1 for '\0'
-        assert(s); // decreasing the size may not fail
-        buf->s = s;
-        buf->cap = buf->len;
-    }
-}

app/src/util/strbuf.h

@@ -1,73 +0,0 @@
-#ifndef SC_STRBUF_H
-#define SC_STRBUF_H
-
-#include "common.h"
-
-#include <stdbool.h>
-#include <stddef.h>
-#include <string.h>
-
-struct sc_strbuf {
-    char *s;
-    size_t len;
-    size_t cap;
-};
-
-/**
- * Initialize the string buffer
- *
- * `buf->s` must be manually freed by the caller.
- */
-bool
-sc_strbuf_init(struct sc_strbuf *buf, size_t init_cap);
-
-/**
- * Append a string
- *
- * Append `len` characters from `s` to the buffer.
- */
-bool
-sc_strbuf_append(struct sc_strbuf *buf, const char *s, size_t len);
-
-/**
- * Append a char
- *
- * Append a single character to the buffer.
- */
-bool
-sc_strbuf_append_char(struct sc_strbuf *buf, const char c);
-
-/**
- * Append a char `n` times
- *
- * Append the same characters `n` times to the buffer.
- */
-bool
-sc_strbuf_append_n(struct sc_strbuf *buf, const char c, size_t n);
-
-/**
- * Append a NUL-terminated string
- */
-static inline bool
-sc_strbuf_append_str(struct sc_strbuf *buf, const char *s) {
-    return sc_strbuf_append(buf, s, strlen(s));
-}
-
-/**
- * Append a static string
- *
- * Append a string whose size is known at compile time (for
- * example a string literal).
- */
-#define sc_strbuf_append_staticstr(BUF, S) \
-    sc_strbuf_append(BUF, S, sizeof(S) - 1)
-
-/**
- * Shrink the buffer capacity to its current length
- *
- * This resizes `buf->s` to fit the content.
- */
-void
-sc_strbuf_shrink(struct sc_strbuf *buf);
-
-#endif

app/src/util/term.c

@@ -1,51 +0,0 @@
-#include "term.h"
-
-#include <assert.h>
-
-#ifdef _WIN32
-# include <windows.h>
-#else
-# include <unistd.h>
-# include <sys/ioctl.h>
-#endif
-
-bool
-sc_term_get_size(unsigned *rows, unsigned *cols) {
-#ifdef _WIN32
-    CONSOLE_SCREEN_BUFFER_INFO csbi;
-
-    bool ok =
-        GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
-    if (!ok) {
-        return false;
-    }
-
-    if (rows) {
-        assert(csbi.srWindow.Bottom >= csbi.srWindow.Top);
-        *rows = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
-    }
-
-    if (cols) {
-        assert(csbi.srWindow.Right >= csbi.srWindow.Left);
-        *cols = csbi.srWindow.Right - csbi.srWindow.Left + 1;
-    }
-
-    return true;
-#else
-    struct winsize ws;
-    int r = ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
-    if (r == -1) {
-        return false;
-    }
-
-    if (rows) {
-        *rows = ws.ws_row;
-    }
-
-    if (cols) {
-        *cols = ws.ws_col;
-    }
-
-    return true;
-#endif
-}

app/src/util/term.h

@@ -1,21 +0,0 @@
-#ifndef SC_TERM_H
-#define SC_TERM_H
-
-#include "common.h"
-
-#include <stdbool.h>
-
-/**
- * Return the terminal dimensions
- *
- * Return false if the dimensions could not be retrieved.
- *
- * Otherwise, return true, and:
- *  - if `rows` is not NULL, then the number of rows is written to `*rows`.
- *  - if `columns` is not NULL, then the number of columns is written to
- *    `*columns`.
- */
-bool
-sc_term_get_size(unsigned *rows, unsigned *cols);
-
-#endif

app/src/util/tick.h

@@ -1,8 +1,6 @@
 #ifndef SC_TICK_H
 #define SC_TICK_H
 
-#include "common.h"
-
 #include <stdint.h>
 
 typedef int64_t sc_tick;

app/src/v4l2_sink.c

@@ -1,7 +1,7 @@
 #include "v4l2_sink.h"
 
 #include "util/log.h"
-#include "util/str.h"
+#include "util/str_util.h"
 
 /** Downcast frame_sink to sc_v4l2_sink */
 #define DOWNCAST(SINK) container_of(SINK, struct sc_v4l2_sink, frame_sink)
@@ -21,7 +21,7 @@ find_muxer(const char *name) {
         oformat = av_oformat_next(oformat);
 #endif
         // until null or containing the requested name
-    } while (oformat && !sc_str_list_contains(oformat->name, ',', name));
+    } while (oformat && !strlist_contains(oformat->name, ',', name));
     return oformat;
 }
 
@@ -359,7 +359,7 @@ sc_v4l2_frame_sink_push(struct sc_frame_sink *sink, const AVFrame *frame) {
 
 bool
 sc_v4l2_sink_init(struct sc_v4l2_sink *vs, const char *device_name,
-                  struct sc_size frame_size, sc_tick buffering_time) {
+                  struct size frame_size, sc_tick buffering_time) {
     vs->device_name = strdup(device_name);
     if (!vs->device_name) {
         LOGE("Could not strdup v4l2 device name");

app/src/v4l2_sink.h

@@ -18,7 +18,7 @@ struct sc_v4l2_sink {
     AVCodecContext *encoder_ctx;
 
     char *device_name;
-    struct sc_size frame_size;
+    struct size frame_size;
     sc_tick buffering_time;
 
     sc_thread thread;
@@ -34,7 +34,7 @@ struct sc_v4l2_sink {
 
 bool
 sc_v4l2_sink_init(struct sc_v4l2_sink *vs, const char *device_name,
-                  struct sc_size frame_size, sc_tick buffering_time);
+                  struct size frame_size, sc_tick buffering_time);
 
 void
 sc_v4l2_sink_destroy(struct sc_v4l2_sink *vs);

app/tests/test_control_msg_serialize.c

@@ -78,7 +78,7 @@ static void test_serialize_inject_touch_event(void) {
         .type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
         .inject_touch_event = {
             .action = AMOTION_EVENT_ACTION_DOWN,
-            .pointer_id = UINT64_C(0x1234567887654321),
+            .pointer_id = 0x1234567887654321L,
             .position = {
                 .point = {
                     .x = 100,
@@ -226,7 +226,6 @@ static void test_serialize_set_clipboard(void) {
     struct control_msg msg = {
         .type = CONTROL_MSG_TYPE_SET_CLIPBOARD,
         .set_clipboard = {
-            .sequence = UINT64_C(0x0102030405060708),
             .paste = true,
             .text = "hello, world!",
         },
@@ -234,11 +233,10 @@ static void test_serialize_set_clipboard(void) {
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
     size_t size = control_msg_serialize(&msg, buf);
-    assert(size == 27);
+    assert(size == 19);
 
     const unsigned char expected[] = {
         CONTROL_MSG_TYPE_SET_CLIPBOARD,
-        0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, // sequence
         1, // paste
         0x00, 0x00, 0x00, 0x0d, // text length
         'h', 'e', 'l', 'l', 'o', ',', ' ', 'w', 'o', 'r', 'l', 'd', '!', // text

app/tests/test_device_msg_deserialize.c

@@ -47,26 +47,11 @@ static void test_deserialize_clipboard_big(void) {
     device_msg_destroy(&msg);
 }
 
-static void test_deserialize_ack_set_clipboard(void) {
-    const unsigned char input[] = {
-        DEVICE_MSG_TYPE_ACK_CLIPBOARD,
-        0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, // sequence
-    };
-
-    struct device_msg msg;
-    ssize_t r = device_msg_deserialize(input, sizeof(input), &msg);
-    assert(r == 9);
-
-    assert(msg.type == DEVICE_MSG_TYPE_ACK_CLIPBOARD);
-    assert(msg.ack_clipboard.sequence == UINT64_C(0x0102030405060708));
-}
-
 int main(int argc, char *argv[]) {
     (void) argc;
     (void) argv;
 
     test_deserialize_clipboard();
     test_deserialize_clipboard_big();
-    test_deserialize_ack_set_clipboard();
     return 0;
 }

app/tests/test_str.c

@@ -1,387 +0,0 @@
-#include "common.h"
-
-#include <assert.h>
-#include <limits.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "util/str.h"
-
-static void test_strncpy_simple(void) {
-    char s[] = "xxxxxxxxxx";
-    size_t w = sc_strncpy(s, "abcdef", sizeof(s));
-
-    // returns strlen of copied string
-    assert(w == 6);
-
-    // is nul-terminated
-    assert(s[6] == '\0');
-
-    // does not write useless bytes
-    assert(s[7] == 'x');
-
-    // copies the content as expected
-    assert(!strcmp("abcdef", s));
-}
-
-static void test_strncpy_just_fit(void) {
-    char s[] = "xxxxxx";
-    size_t w = sc_strncpy(s, "abcdef", sizeof(s));
-
-    // returns strlen of copied string
-    assert(w == 6);
-
-    // is nul-terminated
-    assert(s[6] == '\0');
-
-    // copies the content as expected
-    assert(!strcmp("abcdef", s));
-}
-
-static void test_strncpy_truncated(void) {
-    char s[] = "xxx";
-    size_t w = sc_strncpy(s, "abcdef", sizeof(s));
-
-    // returns 'n' (sizeof(s))
-    assert(w == 4);
-
-    // is nul-terminated
-    assert(s[3] == '\0');
-
-    // copies the content as expected
-    assert(!strncmp("abcdef", s, 3));
-}
-
-static void test_join_simple(void) {
-    const char *const tokens[] = { "abc", "de", "fghi", NULL };
-    char s[] = "xxxxxxxxxxxxxx";
-    size_t w = sc_str_join(s, tokens, ' ', sizeof(s));
-
-    // returns strlen of concatenation
-    assert(w == 11);
-
-    // is nul-terminated
-    assert(s[11] == '\0');
-
-    // does not write useless bytes
-    assert(s[12] == 'x');
-
-    // copies the content as expected
-    assert(!strcmp("abc de fghi", s));
-}
-
-static void test_join_just_fit(void) {
-    const char *const tokens[] = { "abc", "de", "fghi", NULL };
-    char s[] = "xxxxxxxxxxx";
-    size_t w = sc_str_join(s, tokens, ' ', sizeof(s));
-
-    // returns strlen of concatenation
-    assert(w == 11);
-
-    // is nul-terminated
-    assert(s[11] == '\0');
-
-    // copies the content as expected
-    assert(!strcmp("abc de fghi", s));
-}
-
-static void test_join_truncated_in_token(void) {
-    const char *const tokens[] = { "abc", "de", "fghi", NULL };
-    char s[] = "xxxxx";
-    size_t w = sc_str_join(s, tokens, ' ', sizeof(s));
-
-    // returns 'n' (sizeof(s))
-    assert(w == 6);
-
-    // is nul-terminated
-    assert(s[5] == '\0');
-
-    // copies the content as expected
-    assert(!strcmp("abc d", s));
-}
-
-static void test_join_truncated_before_sep(void) {
-    const char *const tokens[] = { "abc", "de", "fghi", NULL };
-    char s[] = "xxxxxx";
-    size_t w = sc_str_join(s, tokens, ' ', sizeof(s));
-
-    // returns 'n' (sizeof(s))
-    assert(w == 7);
-
-    // is nul-terminated
-    assert(s[6] == '\0');
-
-    // copies the content as expected
-    assert(!strcmp("abc de", s));
-}
-
-static void test_join_truncated_after_sep(void) {
-    const char *const tokens[] = { "abc", "de", "fghi", NULL };
-    char s[] = "xxxxxxx";
-    size_t w = sc_str_join(s, tokens, ' ', sizeof(s));
-
-    // returns 'n' (sizeof(s))
-    assert(w == 8);
-
-    // is nul-terminated
-    assert(s[7] == '\0');
-
-    // copies the content as expected
-    assert(!strcmp("abc de ", s));
-}
-
-static void test_quote(void) {
-    const char *s = "abcde";
-    char *out = sc_str_quote(s);
-
-    // add '"' at the beginning and the end
-    assert(!strcmp("\"abcde\"", out));
-
-    free(out);
-}
-
-static void test_utf8_truncate(void) {
-    const char *s = "aÉbÔc";
-    assert(strlen(s) == 7); // É and Ô are 2 bytes-wide
-
-    size_t count;
-
-    count = sc_str_utf8_truncation_index(s, 1);
-    assert(count == 1);
-
-    count = sc_str_utf8_truncation_index(s, 2);
-    assert(count == 1); // É is 2 bytes-wide
-
-    count = sc_str_utf8_truncation_index(s, 3);
-    assert(count == 3);
-
-    count = sc_str_utf8_truncation_index(s, 4);
-    assert(count == 4);
-
-    count = sc_str_utf8_truncation_index(s, 5);
-    assert(count == 4); // Ô is 2 bytes-wide
-
-    count = sc_str_utf8_truncation_index(s, 6);
-    assert(count == 6);
-
-    count = sc_str_utf8_truncation_index(s, 7);
-    assert(count == 7);
-
-    count = sc_str_utf8_truncation_index(s, 8);
-    assert(count == 7); // no more chars
-}
-
-static void test_parse_integer(void) {
-    long value;
-    bool ok = sc_str_parse_integer("1234", &value);
-    assert(ok);
-    assert(value == 1234);
-
-    ok = sc_str_parse_integer("-1234", &value);
-    assert(ok);
-    assert(value == -1234);
-
-    ok = sc_str_parse_integer("1234k", &value);
-    assert(!ok);
-
-    ok = sc_str_parse_integer("123456789876543212345678987654321", &value);
-    assert(!ok); // out-of-range
-}
-
-static void test_parse_integers(void) {
-    long values[5];
-
-    size_t count = sc_str_parse_integers("1234", ':', 5, values);
-    assert(count == 1);
-    assert(values[0] == 1234);
-
-    count = sc_str_parse_integers("1234:5678", ':', 5, values);
-    assert(count == 2);
-    assert(values[0] == 1234);
-    assert(values[1] == 5678);
-
-    count = sc_str_parse_integers("1234:5678", ':', 2, values);
-    assert(count == 2);
-    assert(values[0] == 1234);
-    assert(values[1] == 5678);
-
-    count = sc_str_parse_integers("1234:-5678", ':', 2, values);
-    assert(count == 2);
-    assert(values[0] == 1234);
-    assert(values[1] == -5678);
-
-    count = sc_str_parse_integers("1:2:3:4:5", ':', 5, values);
-    assert(count == 5);
-    assert(values[0] == 1);
-    assert(values[1] == 2);
-    assert(values[2] == 3);
-    assert(values[3] == 4);
-    assert(values[4] == 5);
-
-    count = sc_str_parse_integers("1234:5678", ':', 1, values);
-    assert(count == 0); // max_items == 1
-
-    count = sc_str_parse_integers("1:2:3:4:5", ':', 3, values);
-    assert(count == 0); // max_items == 3
-
-    count = sc_str_parse_integers(":1234", ':', 5, values);
-    assert(count == 0); // invalid
-
-    count = sc_str_parse_integers("1234:", ':', 5, values);
-    assert(count == 0); // invalid
-
-    count = sc_str_parse_integers("1234:", ':', 1, values);
-    assert(count == 0); // invalid, even when max_items == 1
-
-    count = sc_str_parse_integers("1234::5678", ':', 5, values);
-    assert(count == 0); // invalid
-}
-
-static void test_parse_integer_with_suffix(void) {
-    long value;
-    bool ok = sc_str_parse_integer_with_suffix("1234", &value);
-    assert(ok);
-    assert(value == 1234);
-
-    ok = sc_str_parse_integer_with_suffix("-1234", &value);
-    assert(ok);
-    assert(value == -1234);
-
-    ok = sc_str_parse_integer_with_suffix("1234k", &value);
-    assert(ok);
-    assert(value == 1234000);
-
-    ok = sc_str_parse_integer_with_suffix("1234m", &value);
-    assert(ok);
-    assert(value == 1234000000);
-
-    ok = sc_str_parse_integer_with_suffix("-1234k", &value);
-    assert(ok);
-    assert(value == -1234000);
-
-    ok = sc_str_parse_integer_with_suffix("-1234m", &value);
-    assert(ok);
-    assert(value == -1234000000);
-
-    ok = sc_str_parse_integer_with_suffix("123456789876543212345678987654321", &value);
-    assert(!ok); // out-of-range
-
-    char buf[32];
-
-    sprintf(buf, "%ldk", LONG_MAX / 2000);
-    ok = sc_str_parse_integer_with_suffix(buf, &value);
-    assert(ok);
-    assert(value == LONG_MAX / 2000 * 1000);
-
-    sprintf(buf, "%ldm", LONG_MAX / 2000);
-    ok = sc_str_parse_integer_with_suffix(buf, &value);
-    assert(!ok);
-
-    sprintf(buf, "%ldk", LONG_MIN / 2000);
-    ok = sc_str_parse_integer_with_suffix(buf, &value);
-    assert(ok);
-    assert(value == LONG_MIN / 2000 * 1000);
-
-    sprintf(buf, "%ldm", LONG_MIN / 2000);
-    ok = sc_str_parse_integer_with_suffix(buf, &value);
-    assert(!ok);
-}
-
-static void test_strlist_contains(void) {
-    assert(sc_str_list_contains("a,bc,def", ',', "bc"));
-    assert(!sc_str_list_contains("a,bc,def", ',', "b"));
-    assert(sc_str_list_contains("", ',', ""));
-    assert(sc_str_list_contains("abc,", ',', ""));
-    assert(sc_str_list_contains(",abc", ',', ""));
-    assert(sc_str_list_contains("abc,,def", ',', ""));
-    assert(!sc_str_list_contains("abc", ',', ""));
-    assert(sc_str_list_contains(",,|x", '|', ",,"));
-    assert(sc_str_list_contains("xyz", '\0', "xyz"));
-}
-
-static void test_wrap_lines(void) {
-    const char *s = "This is a text to test line wrapping. The lines must be "
-                    "wrapped at a space or a line break.\n"
-                    "\n"
-                    "This rectangle must remains a rectangle because it is "
-                    "drawn in lines having lengths lower than the specified "
-                    "number of columns:\n"
-                    "  +----+\n"
-                    "  |    |\n"
-                    "  +----+\n";
-
-    //                     |----      1    1    2  2|
-    //                     |0    5    0    5    0  3| <-- 24 columns
-    const char *expected = "    This is a text to\n"
-                           "    test line wrapping.\n"
-                           "    The lines must be\n"
-                           "    wrapped at a space\n"
-                           "    or a line break.\n"
-                           "    \n"
-                           "    This rectangle must\n"
-                           "    remains a rectangle\n"
-                           "    because it is drawn\n"
-                           "    in lines having\n"
-                           "    lengths lower than\n"
-                           "    the specified number\n"
-                           "    of columns:\n"
-                           "      +----+\n"
-                           "      |    |\n"
-                           "      +----+\n";
-
-    char *formatted = sc_str_wrap_lines(s, 24, 4);
-    assert(formatted);
-
-    assert(!strcmp(formatted, expected));
-
-    free(formatted);
-}
-
-static void test_truncate(void) {
-    char s[] = "hello\nworld\n!";
-    size_t len = sc_str_truncate(s, sizeof(s), "\n");
-
-    assert(len == 5);
-    assert(!strcmp("hello", s));
-
-    char s2[] = "hello\r\nworkd\r\n!";
-    len = sc_str_truncate(s2, sizeof(s2), "\n\r");
-
-    assert(len == 5);
-    assert(!strcmp("hello", s));
-
-    char s3[] = "hello world\n!";
-    len = sc_str_truncate(s3, sizeof(s3), " \n\r");
-
-    assert(len == 5);
-    assert(!strcmp("hello", s3));
-
-    char s4[] = "hello ";
-    len = sc_str_truncate(s4, sizeof(s4), " \n\r");
-
-    assert(len == 5);
-    assert(!strcmp("hello", s4));
-}
-
-int main(int argc, char *argv[]) {
-    (void) argc;
-    (void) argv;
-
-    test_strncpy_simple();
-    test_strncpy_just_fit();
-    test_strncpy_truncated();
-    test_join_simple();
-    test_join_just_fit();
-    test_join_truncated_in_token();
-    test_join_truncated_before_sep();
-    test_join_truncated_after_sep();
-    test_quote();
-    test_utf8_truncate();
-    test_parse_integer();
-    test_parse_integers();
-    test_parse_integer_with_suffix();
-    test_strlist_contains();
-    test_wrap_lines();
-    test_truncate();
-    return 0;
-}

app/tests/test_strbuf.c

@@ -1,47 +0,0 @@
-#include "common.h"
-
-#include <assert.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "util/strbuf.h"
-
-static void test_strbuf_simple(void) {
-    struct sc_strbuf buf;
-    bool ok = sc_strbuf_init(&buf, 10);
-    assert(ok);
-
-    ok = sc_strbuf_append_staticstr(&buf, "Hello");
-    assert(ok);
-
-    ok = sc_strbuf_append_char(&buf, ' ');
-    assert(ok);
-
-    ok = sc_strbuf_append_staticstr(&buf, "world");
-    assert(ok);
-
-    ok = sc_strbuf_append_staticstr(&buf, "!\n");
-    assert(ok);
-
-    ok = sc_strbuf_append_staticstr(&buf, "This is a test");
-    assert(ok);
-
-    ok = sc_strbuf_append_n(&buf, '.', 3);
-    assert(ok);
-
-    assert(!strcmp(buf.s, "Hello world!\nThis is a test..."));
-
-    sc_strbuf_shrink(&buf);
-    assert(buf.len == buf.cap);
-    assert(!strcmp(buf.s, "Hello world!\nThis is a test..."));
-
-    free(buf.s);
-}
-
-int main(int argc, char *argv[]) {
-    (void) argc;
-    (void) argv;
-
-    test_strbuf_simple();
-    return 0;
-}

app/tests/test_strutil.c

@@ -0,0 +1,321 @@
+#include "common.h"
+
+#include <assert.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "util/str_util.h"
+
+static void test_xstrncpy_simple(void) {
+    char s[] = "xxxxxxxxxx";
+    size_t w = xstrncpy(s, "abcdef", sizeof(s));
+
+    // returns strlen of copied string
+    assert(w == 6);
+
+    // is nul-terminated
+    assert(s[6] == '\0');
+
+    // does not write useless bytes
+    assert(s[7] == 'x');
+
+    // copies the content as expected
+    assert(!strcmp("abcdef", s));
+}
+
+static void test_xstrncpy_just_fit(void) {
+    char s[] = "xxxxxx";
+    size_t w = xstrncpy(s, "abcdef", sizeof(s));
+
+    // returns strlen of copied string
+    assert(w == 6);
+
+    // is nul-terminated
+    assert(s[6] == '\0');
+
+    // copies the content as expected
+    assert(!strcmp("abcdef", s));
+}
+
+static void test_xstrncpy_truncated(void) {
+    char s[] = "xxx";
+    size_t w = xstrncpy(s, "abcdef", sizeof(s));
+
+    // returns 'n' (sizeof(s))
+    assert(w == 4);
+
+    // is nul-terminated
+    assert(s[3] == '\0');
+
+    // copies the content as expected
+    assert(!strncmp("abcdef", s, 3));
+}
+
+static void test_xstrjoin_simple(void) {
+    const char *const tokens[] = { "abc", "de", "fghi", NULL };
+    char s[] = "xxxxxxxxxxxxxx";
+    size_t w = xstrjoin(s, tokens, ' ', sizeof(s));
+
+    // returns strlen of concatenation
+    assert(w == 11);
+
+    // is nul-terminated
+    assert(s[11] == '\0');
+
+    // does not write useless bytes
+    assert(s[12] == 'x');
+
+    // copies the content as expected
+    assert(!strcmp("abc de fghi", s));
+}
+
+static void test_xstrjoin_just_fit(void) {
+    const char *const tokens[] = { "abc", "de", "fghi", NULL };
+    char s[] = "xxxxxxxxxxx";
+    size_t w = xstrjoin(s, tokens, ' ', sizeof(s));
+
+    // returns strlen of concatenation
+    assert(w == 11);
+
+    // is nul-terminated
+    assert(s[11] == '\0');
+
+    // copies the content as expected
+    assert(!strcmp("abc de fghi", s));
+}
+
+static void test_xstrjoin_truncated_in_token(void) {
+    const char *const tokens[] = { "abc", "de", "fghi", NULL };
+    char s[] = "xxxxx";
+    size_t w = xstrjoin(s, tokens, ' ', sizeof(s));
+
+    // returns 'n' (sizeof(s))
+    assert(w == 6);
+
+    // is nul-terminated
+    assert(s[5] == '\0');
+
+    // copies the content as expected
+    assert(!strcmp("abc d", s));
+}
+
+static void test_xstrjoin_truncated_before_sep(void) {
+    const char *const tokens[] = { "abc", "de", "fghi", NULL };
+    char s[] = "xxxxxx";
+    size_t w = xstrjoin(s, tokens, ' ', sizeof(s));
+
+    // returns 'n' (sizeof(s))
+    assert(w == 7);
+
+    // is nul-terminated
+    assert(s[6] == '\0');
+
+    // copies the content as expected
+    assert(!strcmp("abc de", s));
+}
+
+static void test_xstrjoin_truncated_after_sep(void) {
+    const char *const tokens[] = { "abc", "de", "fghi", NULL };
+    char s[] = "xxxxxxx";
+    size_t w = xstrjoin(s, tokens, ' ', sizeof(s));
+
+    // returns 'n' (sizeof(s))
+    assert(w == 8);
+
+    // is nul-terminated
+    assert(s[7] == '\0');
+
+    // copies the content as expected
+    assert(!strcmp("abc de ", s));
+}
+
+static void test_strquote(void) {
+    const char *s = "abcde";
+    char *out = strquote(s);
+
+    // add '"' at the beginning and the end
+    assert(!strcmp("\"abcde\"", out));
+
+    free(out);
+}
+
+static void test_utf8_truncate(void) {
+    const char *s = "aÉbÔc";
+    assert(strlen(s) == 7); // É and Ô are 2 bytes-wide
+
+    size_t count;
+
+    count = utf8_truncation_index(s, 1);
+    assert(count == 1);
+
+    count = utf8_truncation_index(s, 2);
+    assert(count == 1); // É is 2 bytes-wide
+
+    count = utf8_truncation_index(s, 3);
+    assert(count == 3);
+
+    count = utf8_truncation_index(s, 4);
+    assert(count == 4);
+
+    count = utf8_truncation_index(s, 5);
+    assert(count == 4); // Ô is 2 bytes-wide
+
+    count = utf8_truncation_index(s, 6);
+    assert(count == 6);
+
+    count = utf8_truncation_index(s, 7);
+    assert(count == 7);
+
+    count = utf8_truncation_index(s, 8);
+    assert(count == 7); // no more chars
+}
+
+static void test_parse_integer(void) {
+    long value;
+    bool ok = parse_integer("1234", &value);
+    assert(ok);
+    assert(value == 1234);
+
+    ok = parse_integer("-1234", &value);
+    assert(ok);
+    assert(value == -1234);
+
+    ok = parse_integer("1234k", &value);
+    assert(!ok);
+
+    ok = parse_integer("123456789876543212345678987654321", &value);
+    assert(!ok); // out-of-range
+}
+
+static void test_parse_integers(void) {
+    long values[5];
+
+    size_t count = parse_integers("1234", ':', 5, values);
+    assert(count == 1);
+    assert(values[0] == 1234);
+
+    count = parse_integers("1234:5678", ':', 5, values);
+    assert(count == 2);
+    assert(values[0] == 1234);
+    assert(values[1] == 5678);
+
+    count = parse_integers("1234:5678", ':', 2, values);
+    assert(count == 2);
+    assert(values[0] == 1234);
+    assert(values[1] == 5678);
+
+    count = parse_integers("1234:-5678", ':', 2, values);
+    assert(count == 2);
+    assert(values[0] == 1234);
+    assert(values[1] == -5678);
+
+    count = parse_integers("1:2:3:4:5", ':', 5, values);
+    assert(count == 5);
+    assert(values[0] == 1);
+    assert(values[1] == 2);
+    assert(values[2] == 3);
+    assert(values[3] == 4);
+    assert(values[4] == 5);
+
+    count = parse_integers("1234:5678", ':', 1, values);
+    assert(count == 0); // max_items == 1
+
+    count = parse_integers("1:2:3:4:5", ':', 3, values);
+    assert(count == 0); // max_items == 3
+
+    count = parse_integers(":1234", ':', 5, values);
+    assert(count == 0); // invalid
+
+    count = parse_integers("1234:", ':', 5, values);
+    assert(count == 0); // invalid
+
+    count = parse_integers("1234:", ':', 1, values);
+    assert(count == 0); // invalid, even when max_items == 1
+
+    count = parse_integers("1234::5678", ':', 5, values);
+    assert(count == 0); // invalid
+}
+
+static void test_parse_integer_with_suffix(void) {
+    long value;
+    bool ok = parse_integer_with_suffix("1234", &value);
+    assert(ok);
+    assert(value == 1234);
+
+    ok = parse_integer_with_suffix("-1234", &value);
+    assert(ok);
+    assert(value == -1234);
+
+    ok = parse_integer_with_suffix("1234k", &value);
+    assert(ok);
+    assert(value == 1234000);
+
+    ok = parse_integer_with_suffix("1234m", &value);
+    assert(ok);
+    assert(value == 1234000000);
+
+    ok = parse_integer_with_suffix("-1234k", &value);
+    assert(ok);
+    assert(value == -1234000);
+
+    ok = parse_integer_with_suffix("-1234m", &value);
+    assert(ok);
+    assert(value == -1234000000);
+
+    ok = parse_integer_with_suffix("123456789876543212345678987654321", &value);
+    assert(!ok); // out-of-range
+
+    char buf[32];
+
+    sprintf(buf, "%ldk", LONG_MAX / 2000);
+    ok = parse_integer_with_suffix(buf, &value);
+    assert(ok);
+    assert(value == LONG_MAX / 2000 * 1000);
+
+    sprintf(buf, "%ldm", LONG_MAX / 2000);
+    ok = parse_integer_with_suffix(buf, &value);
+    assert(!ok);
+
+    sprintf(buf, "%ldk", LONG_MIN / 2000);
+    ok = parse_integer_with_suffix(buf, &value);
+    assert(ok);
+    assert(value == LONG_MIN / 2000 * 1000);
+
+    sprintf(buf, "%ldm", LONG_MIN / 2000);
+    ok = parse_integer_with_suffix(buf, &value);
+    assert(!ok);
+}
+
+static void test_strlist_contains(void) {
+    assert(strlist_contains("a,bc,def", ',', "bc"));
+    assert(!strlist_contains("a,bc,def", ',', "b"));
+    assert(strlist_contains("", ',', ""));
+    assert(strlist_contains("abc,", ',', ""));
+    assert(strlist_contains(",abc", ',', ""));
+    assert(strlist_contains("abc,,def", ',', ""));
+    assert(!strlist_contains("abc", ',', ""));
+    assert(strlist_contains(",,|x", '|', ",,"));
+    assert(strlist_contains("xyz", '\0', "xyz"));
+}
+
+int main(int argc, char *argv[]) {
+    (void) argc;
+    (void) argv;
+
+    test_xstrncpy_simple();
+    test_xstrncpy_just_fit();
+    test_xstrncpy_truncated();
+    test_xstrjoin_simple();
+    test_xstrjoin_just_fit();
+    test_xstrjoin_truncated_in_token();
+    test_xstrjoin_truncated_before_sep();
+    test_xstrjoin_truncated_after_sep();
+    test_strquote();
+    test_utf8_truncate();
+    test_parse_integer();
+    test_parse_integers();
+    test_parse_integer_with_suffix();
+    test_strlist_contains();
+    return 0;
+}

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.0.2'
+        classpath 'com.android.tools.build:gradle:4.0.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

config/android-checkstyle.gradle

@@ -2,7 +2,7 @@ apply plugin: 'checkstyle'
 check.dependsOn 'checkstyle'
 
 checkstyle {
-    toolVersion = '9.0.1'
+    toolVersion = '6.19'
 }
 
 task checkstyle(type: Checkstyle) {

config/checkstyle/checkstyle.xml

@@ -37,14 +37,6 @@ page at http://checkstyle.sourceforge.net/config.html -->
 
   <module name="SuppressWarningsFilter"/>
 
-  <module name="LineLength">
-    <!-- what is a good max value? -->
-    <property name="max" value="150" />
-    <!-- ignore lines like "$File: //depot/... $" -->
-    <property name="ignorePattern" value="\$File.*\$" />
-    <property name="severity" value="info" />
-  </module>
-
   <module name="TreeWalker">
 
     <!-- Checks for Naming Conventions.                  -->
@@ -80,6 +72,13 @@ page at http://checkstyle.sourceforge.net/config.html -->
 
     <!-- Checks for Size Violations.                    -->
     <!-- See http://checkstyle.sf.net/config_sizes.html -->
+    <module name="LineLength">
+      <!-- what is a good max value? -->
+      <property name="max" value="150" />
+      <!-- ignore lines like "$File: //depot/... $" -->
+      <property name="ignorePattern" value="\$File.*\$" />
+      <property name="severity" value="info" />
+    </module>
     <module name="MethodLength" />
     <module name="ParameterNumber">
       <property name="ignoreOverriddenMethods" value="true"/>
@@ -153,6 +152,26 @@ page at http://checkstyle.sourceforge.net/config.html -->
     </module>
     <module name="UpperEll" />
 
+    <module name="FileContentsHolder" />
+    <!-- Required by comment suppression filters -->
+
+  </module>
+
+  <module name="SuppressionFilter">
+    <!--<property name="file" value="team-props/checkstyle/checkstyle-suppressions.xml" />-->
+  </module>
+
+  <!-- Enable suppression comments -->
+  <module name="SuppressionCommentFilter">
+    <property name="offCommentFormat" value="CHECKSTYLE IGNORE\s+(\S+)" />
+    <property name="onCommentFormat" value="CHECKSTYLE END IGNORE\s+(\S+)" />
+    <property name="checkFormat" value="$1" />
+  </module>
+  <module name="SuppressWithNearbyCommentFilter">
+    <!-- Syntax is "SUPPRESS CHECKSTYLE name" -->
+    <property name="commentFormat" value="SUPPRESS CHECKSTYLE (\w+)" />
+    <property name="checkFormat" value="$1" />
+    <property name="influenceFormat" value="1" />
   </module>
 
 </module>

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

install_release.sh

@@ -2,8 +2,8 @@
 set -e
 
 BUILDDIR=build-auto
-PREBUILT_SERVER_URL=https://github.com/Genymobile/scrcpy/releases/download/v1.20/scrcpy-server-v1.20
+PREBUILT_SERVER_URL=https://github.com/Genymobile/scrcpy/releases/download/v1.19/scrcpy-server-v1.19
-PREBUILT_SERVER_SHA256=b20aee4951f99b060c4a44000ba94de973f9604758ef62beb253b371aad3df34
+PREBUILT_SERVER_SHA256=876f9322182e6aac6a58db1334f4225855ef3a17eaebc80aab6601d9d1ecb867
 
 echo "[scrcpy] Downloading prebuilt server..."
 wget "$PREBUILT_SERVER_URL" -O scrcpy-server

meson.build

@@ -1,5 +1,5 @@
 project('scrcpy', 'c',
-        version: '1.20',
+        version: '1.19',
         meson_version: '>= 0.48',
         default_options: [
             'c_std=c11',

server/build.gradle

@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 31
+    compileSdkVersion 30
     defaultConfig {
         applicationId "com.genymobile.scrcpy"
         minSdkVersion 21
-        targetSdkVersion 31
+        targetSdkVersion 30
-        versionCode 12000
+        versionCode 11900
-        versionName "1.20"
+        versionName "1.19"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
@@ -20,7 +20,7 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    testImplementation 'junit:junit:4.13.1'
+    testImplementation 'junit:junit:4.13'
 }
 
 apply from: "$project.rootDir/config/android-checkstyle.gradle"

server/build_without_gradle.sh

@@ -12,17 +12,15 @@
 set -e
 
 SCRCPY_DEBUG=false
-SCRCPY_VERSION_NAME=1.20
+SCRCPY_VERSION_NAME=1.19
 
-PLATFORM_VERSION=31
+PLATFORM=${ANDROID_PLATFORM:-30}
-PLATFORM=${ANDROID_PLATFORM:-$PLATFORM_VERSION}
+BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-30.0.0}
-BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-31.0.0}
 
 BUILD_DIR="$(realpath ${BUILD_DIR:-build_manual})"
 CLASSES_DIR="$BUILD_DIR/classes"
 SERVER_DIR=$(dirname "$0")
 SERVER_BINARY=scrcpy-server
-ANDROID_JAR="$ANDROID_HOME/platforms/android-$PLATFORM/android.jar"
 
 echo "Platform: android-$PLATFORM"
 echo "Build-tools: $BUILD_TOOLS"
@@ -49,40 +47,23 @@ cd "$SERVER_DIR/src/main/aidl"
 
 echo "Compiling java sources..."
 cd ../java
-javac -bootclasspath "$ANDROID_JAR" -cp "$CLASSES_DIR" -d "$CLASSES_DIR" \
+javac -bootclasspath "$ANDROID_HOME/platforms/android-$PLATFORM/android.jar" \
-    -source 1.8 -target 1.8 \
+    -cp "$CLASSES_DIR" -d "$CLASSES_DIR" -source 1.8 -target 1.8 \
     com/genymobile/scrcpy/*.java \
     com/genymobile/scrcpy/wrappers/*.java
 
 echo "Dexing..."
 cd "$CLASSES_DIR"
+"$ANDROID_HOME/build-tools/$BUILD_TOOLS/dx" --dex \
+    --output "$BUILD_DIR/classes.dex" \
+    android/view/*.class \
+    android/content/*.class \
+    com/genymobile/scrcpy/*.class \
+    com/genymobile/scrcpy/wrappers/*.class
 
-if [[ $PLATFORM_VERSION -lt 31 ]]
+echo "Archiving..."
-then
+cd "$BUILD_DIR"
-    # use dx
+jar cvf "$SERVER_BINARY" classes.dex
-    "$ANDROID_HOME/build-tools/$BUILD_TOOLS/dx" --dex \
+rm -rf classes.dex classes
-        --output "$BUILD_DIR/classes.dex" \
-        android/view/*.class \
-        android/content/*.class \
-        com/genymobile/scrcpy/*.class \
-        com/genymobile/scrcpy/wrappers/*.class
-
-    echo "Archiving..."
-    cd "$BUILD_DIR"
-    jar cvf "$SERVER_BINARY" classes.dex
-    rm -rf classes.dex classes
-else
-    # use d8
-    "$ANDROID_HOME/build-tools/$BUILD_TOOLS/d8" --classpath "$ANDROID_JAR" \
-        --output "$BUILD_DIR/classes.zip" \
-        android/view/*.class \
-        android/content/*.class \
-        com/genymobile/scrcpy/*.class \
-        com/genymobile/scrcpy/wrappers/*.class
-
-    cd "$BUILD_DIR"
-    mv classes.zip "$SERVER_BINARY"
-    rm -rf classes
-fi
 
 echo "Server generated in $BUILD_DIR/$SERVER_BINARY"

server/src/main/java/com/genymobile/scrcpy/CleanUp.java

@@ -1,5 +1,6 @@
 package com.genymobile.scrcpy;
 
+import com.genymobile.scrcpy.wrappers.ContentProvider;
 import com.genymobile.scrcpy.wrappers.ServiceManager;
 
 import android.os.Parcel;
@@ -165,21 +166,14 @@ public final class CleanUp {
 
         if (config.disableShowTouches || config.restoreStayOn != -1) {
             ServiceManager serviceManager = new ServiceManager();
-            Settings settings = new Settings(serviceManager);
+            try (ContentProvider settings = serviceManager.getActivityManager().createSettingsProvider()) {
-            if (config.disableShowTouches) {
+                if (config.disableShowTouches) {
-                Ln.i("Disabling \"show touches\"");
+                    Ln.i("Disabling \"show touches\"");
-                try {
+                    settings.putValue(ContentProvider.TABLE_SYSTEM, "show_touches", "0");
-                    settings.putValue(Settings.TABLE_SYSTEM, "show_touches", "0");
-                } catch (SettingsException e) {
-                    Ln.e("Could not restore \"show_touches\"", e);
                 }
-            }
+                if (config.restoreStayOn != -1) {
-            if (config.restoreStayOn != -1) {
+                    Ln.i("Restoring \"stay awake\"");
-                Ln.i("Restoring \"stay awake\"");
+                    settings.putValue(ContentProvider.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(config.restoreStayOn));
-                try {
-                    settings.putValue(Settings.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(config.restoreStayOn));
-                } catch (SettingsException e) {
-                    Ln.e("Could not restore \"stay_on_while_plugged_in\"", e);
                 }
             }
         }

server/src/main/java/com/genymobile/scrcpy/Command.java

@@ -1,33 +0,0 @@
-package com.genymobile.scrcpy;
-
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.Scanner;
-
-public final class Command {
-    private Command() {
-        // not instantiable
-    }
-
-    public static void exec(String... cmd) throws IOException, InterruptedException {
-        Process process = Runtime.getRuntime().exec(cmd);
-        int exitCode = process.waitFor();
-        if (exitCode != 0) {
-            throw new IOException("Command " + Arrays.toString(cmd) + " returned with value " + exitCode);
-        }
-    }
-
-    public static String execReadLine(String... cmd) throws IOException, InterruptedException {
-        String result = null;
-        Process process = Runtime.getRuntime().exec(cmd);
-        Scanner scanner = new Scanner(process.getInputStream());
-        if (scanner.hasNextLine()) {
-            result = scanner.nextLine();
-        }
-        int exitCode = process.waitFor();
-        if (exitCode != 0) {
-            throw new IOException("Command " + Arrays.toString(cmd) + " returned with value " + exitCode);
-        }
-        return result;
-    }
-}

server/src/main/java/com/genymobile/scrcpy/ControlMessage.java

@@ -18,8 +18,6 @@ public final class ControlMessage {
     public static final int TYPE_SET_SCREEN_POWER_MODE = 10;
     public static final int TYPE_ROTATE_DEVICE = 11;
 
-    public static final long SEQUENCE_INVALID = 0;
-
     private int type;
     private String text;
     private int metaState; // KeyEvent.META_*
@@ -33,7 +31,6 @@ public final class ControlMessage {
     private int vScroll;
     private boolean paste;
     private int repeat;
-    private long sequence;
 
     private ControlMessage() {
     }
@@ -82,10 +79,9 @@ public final class ControlMessage {
         return msg;
     }
 
-    public static ControlMessage createSetClipboard(long sequence, String text, boolean paste) {
+    public static ControlMessage createSetClipboard(String text, boolean paste) {
         ControlMessage msg = new ControlMessage();
         msg.type = TYPE_SET_CLIPBOARD;
-        msg.sequence = sequence;
         msg.text = text;
         msg.paste = paste;
         return msg;
@@ -158,8 +154,4 @@ public final class ControlMessage {
     public int getRepeat() {
         return repeat;
     }
-
-    public long getSequence() {
-        return sequence;
-    }
 }

server/src/main/java/com/genymobile/scrcpy/ControlMessageReader.java

@@ -13,11 +13,11 @@ public class ControlMessageReader {
     static final int INJECT_SCROLL_EVENT_PAYLOAD_LENGTH = 20;
     static final int BACK_OR_SCREEN_ON_LENGTH = 1;
     static final int SET_SCREEN_POWER_MODE_PAYLOAD_LENGTH = 1;
-    static final int SET_CLIPBOARD_FIXED_PAYLOAD_LENGTH = 9;
+    static final int SET_CLIPBOARD_FIXED_PAYLOAD_LENGTH = 1;
 
     private static final int MESSAGE_MAX_SIZE = 1 << 18; // 256k
 
-    public static final int CLIPBOARD_TEXT_MAX_LENGTH = MESSAGE_MAX_SIZE - 14; // type: 1 byte; sequence: 8 bytes; paste flag: 1 byte; length: 4 bytes
+    public static final int CLIPBOARD_TEXT_MAX_LENGTH = MESSAGE_MAX_SIZE - 6; // type: 1 byte; paste flag: 1 byte; length: 4 bytes
     public static final int INJECT_TEXT_MAX_LENGTH = 300;
 
     private final byte[] rawBuffer = new byte[MESSAGE_MAX_SIZE];
@@ -166,13 +166,12 @@ public class ControlMessageReader {
         if (buffer.remaining() < SET_CLIPBOARD_FIXED_PAYLOAD_LENGTH) {
             return null;
         }
-        long sequence = buffer.getLong();
         boolean paste = buffer.get() != 0;
         String text = parseString();
         if (text == null) {
             return null;
         }
-        return ControlMessage.createSetClipboard(sequence, text, paste);
+        return ControlMessage.createSetClipboard(text, paste);
     }
 
     private ControlMessage parseSetScreenPowerMode() {

server/src/main/java/com/genymobile/scrcpy/Controller.java

@@ -120,12 +120,7 @@ public class Controller {
                 }
                 break;
             case ControlMessage.TYPE_SET_CLIPBOARD:
-                long sequence = msg.getSequence();
                 setClipboard(msg.getText(), msg.getPaste());
-                if (sequence != ControlMessage.SEQUENCE_INVALID) {
-                    // Acknowledgement requested
-                    sender.pushAckClipboard(sequence);
-                }
                 break;
             case ControlMessage.TYPE_SET_SCREEN_POWER_MODE:
                 if (device.supportsInputEvents()) {

server/src/main/java/com/genymobile/scrcpy/Device.java

@@ -1,6 +1,7 @@
 package com.genymobile.scrcpy;
 
 import com.genymobile.scrcpy.wrappers.ClipboardManager;
+import com.genymobile.scrcpy.wrappers.ContentProvider;
 import com.genymobile.scrcpy.wrappers.InputManager;
 import com.genymobile.scrcpy.wrappers.ServiceManager;
 import com.genymobile.scrcpy.wrappers.SurfaceControl;
@@ -28,7 +29,6 @@ public final class Device {
     public static final int LOCK_VIDEO_ORIENTATION_INITIAL = -2;
 
     private static final ServiceManager SERVICE_MANAGER = new ServiceManager();
-    private static final Settings SETTINGS = new Settings(SERVICE_MANAGER);
 
     public interface RotationListener {
         void onRotationChanged(int rotation);
@@ -296,7 +296,7 @@ public final class Device {
         }
     }
 
-    public static Settings getSettings() {
+    public static ContentProvider createSettingsProvider() {
-        return SETTINGS;
+        return SERVICE_MANAGER.getActivityManager().createSettingsProvider();
     }
 }

server/src/main/java/com/genymobile/scrcpy/DeviceMessage.java

@@ -3,13 +3,9 @@ package com.genymobile.scrcpy;
 public final class DeviceMessage {
 
     public static final int TYPE_CLIPBOARD = 0;
-    public static final int TYPE_ACK_CLIPBOARD = 1;
-
-    public static final long SEQUENCE_INVALID = ControlMessage.SEQUENCE_INVALID;
 
     private int type;
     private String text;
-    private long sequence;
 
     private DeviceMessage() {
     }
@@ -21,13 +17,6 @@ public final class DeviceMessage {
         return event;
     }
 
-    public static DeviceMessage createAckClipboard(long sequence) {
-        DeviceMessage event = new DeviceMessage();
-        event.type = TYPE_ACK_CLIPBOARD;
-        event.sequence = sequence;
-        return event;
-    }
-
     public int getType() {
         return type;
     }
@@ -35,8 +24,4 @@ public final class DeviceMessage {
     public String getText() {
         return text;
     }
-
-    public long getSequence() {
-        return sequence;
-    }
 }

server/src/main/java/com/genymobile/scrcpy/DeviceMessageSender.java

@@ -8,8 +8,6 @@ public final class DeviceMessageSender {
 
     private String clipboardText;
 
-    private long ack;
-
     public DeviceMessageSender(DesktopConnection connection) {
         this.connection = connection;
     }
@@ -19,34 +17,18 @@ public final class DeviceMessageSender {
         notify();
     }
 
-    public synchronized void pushAckClipboard(long sequence) {
-        ack = sequence;
-        notify();
-    }
-
     public void loop() throws IOException, InterruptedException {
         while (true) {
             String text;
-            long sequence;
             synchronized (this) {
-                while (ack == DeviceMessage.SEQUENCE_INVALID && clipboardText == null) {
+                while (clipboardText == null) {
                     wait();
                 }
                 text = clipboardText;
                 clipboardText = null;
-
-                sequence = ack;
-                ack = DeviceMessage.SEQUENCE_INVALID;
-            }
-
-            if (sequence != DeviceMessage.SEQUENCE_INVALID) {
-                DeviceMessage event = DeviceMessage.createAckClipboard(sequence);
-                connection.sendDeviceMessage(event);
-            }
-            if (text != null) {
-                DeviceMessage event = DeviceMessage.createClipboard(text);
-                connection.sendDeviceMessage(event);
             }
+            DeviceMessage event = DeviceMessage.createClipboard(text);
+            connection.sendDeviceMessage(event);
         }
     }
 }

server/src/main/java/com/genymobile/scrcpy/DeviceMessageWriter.java

@@ -15,7 +15,7 @@ public class DeviceMessageWriter {
 
     public void writeTo(DeviceMessage msg, OutputStream output) throws IOException {
         buffer.clear();
-        buffer.put((byte) msg.getType());
+        buffer.put((byte) DeviceMessage.TYPE_CLIPBOARD);
         switch (msg.getType()) {
             case DeviceMessage.TYPE_CLIPBOARD:
                 String text = msg.getText();
@@ -25,10 +25,6 @@ public class DeviceMessageWriter {
                 buffer.put(raw, 0, len);
                 output.write(rawBuffer, 0, buffer.position());
                 break;
-            case DeviceMessage.TYPE_ACK_CLIPBOARD:
-                buffer.putLong(msg.getSequence());
-                output.write(rawBuffer, 0, buffer.position());
-                break;
             default:
                 Ln.w("Unknown device message: " + msg.getType());
                 break;

server/src/main/java/com/genymobile/scrcpy/Ln.java

@@ -57,18 +57,11 @@ public final class Ln {
         }
     }
 
-    public static void w(String message, Throwable throwable) {
-        if (isEnabled(Level.WARN)) {
-            Log.w(TAG, message, throwable);
-            System.out.println(PREFIX + "WARN: " + message);
-            if (throwable != null) {
-                throwable.printStackTrace();
-            }
-        }
-    }
-
     public static void w(String message) {
-        w(message, null);
+        if (isEnabled(Level.WARN)) {
+            Log.w(TAG, message);
+            System.out.println(PREFIX + "WARN: " + message);
+        }
     }
 
     public static void e(String message, Throwable throwable) {

server/src/main/java/com/genymobile/scrcpy/Server.java

@@ -1,5 +1,7 @@
 package com.genymobile.scrcpy;
 
+import com.genymobile.scrcpy.wrappers.ContentProvider;
+
 import android.graphics.Rect;
 import android.media.MediaCodec;
 import android.media.MediaCodecInfo;
@@ -17,25 +19,24 @@ public final class Server {
         // not instantiable
     }
 
-    private static void initAndCleanUp(Options options) {
+    private static void scrcpy(Options options) throws IOException {
+        Ln.i("Device: " + Build.MANUFACTURER + " " + Build.MODEL + " (Android " + Build.VERSION.RELEASE + ")");
+        final Device device = new Device(options);
+        List<CodecOption> codecOptions = CodecOption.parse(options.getCodecOptions());
+
         boolean mustDisableShowTouchesOnCleanUp = false;
         int restoreStayOn = -1;
         if (options.getShowTouches() || options.getStayAwake()) {
-            Settings settings = Device.getSettings();
+            try (ContentProvider settings = Device.createSettingsProvider()) {
-            if (options.getShowTouches()) {
+                if (options.getShowTouches()) {
-                try {
+                    String oldValue = settings.getAndPutValue(ContentProvider.TABLE_SYSTEM, "show_touches", "1");
-                    String oldValue = settings.getAndPutValue(Settings.TABLE_SYSTEM, "show_touches", "1");
                     // If "show touches" was disabled, it must be disabled back on clean up
                     mustDisableShowTouchesOnCleanUp = !"1".equals(oldValue);
-                } catch (SettingsException e) {
-                    Ln.e("Could not change \"show_touches\"", e);
                 }
-            }
 
-            if (options.getStayAwake()) {
+                if (options.getStayAwake()) {
-                int stayOn = BatteryManager.BATTERY_PLUGGED_AC | BatteryManager.BATTERY_PLUGGED_USB | BatteryManager.BATTERY_PLUGGED_WIRELESS;
+                    int stayOn = BatteryManager.BATTERY_PLUGGED_AC | BatteryManager.BATTERY_PLUGGED_USB | BatteryManager.BATTERY_PLUGGED_WIRELESS;
-                try {
+                    String oldValue = settings.getAndPutValue(ContentProvider.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(stayOn));
-                    String oldValue = settings.getAndPutValue(Settings.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(stayOn));
                     try {
                         restoreStayOn = Integer.parseInt(oldValue);
                         if (restoreStayOn == stayOn) {
@@ -45,25 +46,11 @@ public final class Server {
                     } catch (NumberFormatException e) {
                         restoreStayOn = 0;
                     }
-                } catch (SettingsException e) {
-                    Ln.e("Could not change \"stay_on_while_plugged_in\"", e);
                 }
             }
         }
 
-        try {
+        CleanUp.configure(options.getDisplayId(), restoreStayOn, mustDisableShowTouchesOnCleanUp, true, options.getPowerOffScreenOnClose());
-            CleanUp.configure(options.getDisplayId(), restoreStayOn, mustDisableShowTouchesOnCleanUp, true, options.getPowerOffScreenOnClose());
-        } catch (IOException e) {
-            Ln.e("Could not configure cleanup", e);
-        }
-    }
-
-    private static void scrcpy(Options options) throws IOException {
-        Ln.i("Device: " + Build.MANUFACTURER + " " + Build.MODEL + " (Android " + Build.VERSION.RELEASE + ")");
-        final Device device = new Device(options);
-        List<CodecOption> codecOptions = CodecOption.parse(options.getCodecOptions());
-
-        Thread initThread = startInitThread(options);
 
         boolean tunnelForward = options.isTunnelForward();
 
@@ -95,7 +82,6 @@ public final class Server {
                 // this is expected on close
                 Ln.d("Screen streaming stopped");
             } finally {
-                initThread.interrupt();
                 if (controllerThread != null) {
                     controllerThread.interrupt();
                 }
@@ -106,17 +92,6 @@ public final class Server {
         }
     }
 
-    private static Thread startInitThread(final Options options) {
-        Thread thread = new Thread(new Runnable() {
-            @Override
-            public void run() {
-                initAndCleanUp(options);
-            }
-        });
-        thread.start();
-        return thread;
-    }
-
     private static Thread startController(final Controller controller) {
         Thread thread = new Thread(new Runnable() {
             @Override

server/src/main/java/com/genymobile/scrcpy/Settings.java

@@ -1,84 +0,0 @@
-package com.genymobile.scrcpy;
-
-import com.genymobile.scrcpy.wrappers.ContentProvider;
-import com.genymobile.scrcpy.wrappers.ServiceManager;
-
-import android.os.Build;
-
-import java.io.IOException;
-
-public class Settings {
-
-    public static final String TABLE_SYSTEM = ContentProvider.TABLE_SYSTEM;
-    public static final String TABLE_SECURE = ContentProvider.TABLE_SECURE;
-    public static final String TABLE_GLOBAL = ContentProvider.TABLE_GLOBAL;
-
-    private final ServiceManager serviceManager;
-
-    public Settings(ServiceManager serviceManager) {
-        this.serviceManager = serviceManager;
-    }
-
-    private static void execSettingsPut(String table, String key, String value) throws SettingsException {
-        try {
-            Command.exec("settings", "put", table, key, value);
-        } catch (IOException | InterruptedException e) {
-            throw new SettingsException("put", table, key, value, e);
-        }
-    }
-
-    private static String execSettingsGet(String table, String key) throws SettingsException {
-        try {
-            return Command.execReadLine("settings", "get", table, key);
-        } catch (IOException | InterruptedException e) {
-            throw new SettingsException("get", table, key, null, e);
-        }
-    }
-
-    public String getValue(String table, String key) throws SettingsException {
-        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
-            // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = serviceManager.getActivityManager().createSettingsProvider()) {
-                return provider.getValue(table, key);
-            } catch (SettingsException e) {
-                Ln.w("Could not get settings value via ContentProvider, fallback to settings process", e);
-            }
-        }
-
-        return execSettingsGet(table, key);
-    }
-
-    public void putValue(String table, String key, String value) throws SettingsException {
-        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
-            // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = serviceManager.getActivityManager().createSettingsProvider()) {
-                provider.putValue(table, key, value);
-            } catch (SettingsException e) {
-                Ln.w("Could not put settings value via ContentProvider, fallback to settings process", e);
-            }
-        }
-
-        execSettingsPut(table, key, value);
-    }
-
-    public String getAndPutValue(String table, String key, String value) throws SettingsException {
-        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
-            // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = serviceManager.getActivityManager().createSettingsProvider()) {
-                String oldValue = provider.getValue(table, key);
-                if (!value.equals(oldValue)) {
-                    provider.putValue(table, key, value);
-                }
-                return oldValue;
-            } catch (SettingsException e) {
-                Ln.w("Could not get and put settings value via ContentProvider, fallback to settings process", e);
-            }
-        }
-
-        String oldValue = getValue(table, key);
-        if (!value.equals(oldValue)) {
-             putValue(table, key, value);
-        }
-        return oldValue;
-    }
-}