Jeff Brown 4fe6c3e51b Replace epoll() with poll() and rename PollLoop to Looper.
As part of this change, consolidated and cleaned up the Looper API so
that there are fewer distinctions between the NDK and non-NDK declarations
(no need for two callback types, etc.).

Removed the dependence on specific constants from sys/poll.h such as
POLLIN.  Instead looper.h defines events like LOOPER_EVENT_INPUT for
the events that it supports.  That should help make any future
under-the-hood implementation changes easier.

Fixed a couple of compiler warnings along the way.

Change-Id: I449a7ec780bf061bdd325452f823673e2b39b6ae
2010-09-14 01:59:45 -07:00

74 lines
2.2 KiB
C++

/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "ALooper"
#include <utils/Log.h>
#include <android/looper.h>
#include <utils/Looper.h>
using android::Looper;
using android::sp;
ALooper* ALooper_forThread() {
return Looper::getForThread().get();
}
ALooper* ALooper_prepare(int opts) {
return Looper::prepare(opts).get();
}
void ALooper_acquire(ALooper* looper) {
static_cast<Looper*>(looper)->incStrong((void*)ALooper_acquire);
}
void ALooper_release(ALooper* looper) {
static_cast<Looper*>(looper)->decStrong((void*)ALooper_acquire);
}
int ALooper_pollOnce(int timeoutMillis, int* outFd, int* outEvents, void** outData) {
sp<Looper> looper = Looper::getForThread();
if (looper == NULL) {
LOGE("ALooper_pollOnce: No looper for this thread!");
return ALOOPER_POLL_ERROR;
}
return looper->pollOnce(timeoutMillis, outFd, outEvents, outData);
}
int ALooper_pollAll(int timeoutMillis, int* outFd, int* outEvents, void** outData) {
sp<Looper> looper = Looper::getForThread();
if (looper == NULL) {
LOGE("ALooper_pollAll: No looper for this thread!");
return ALOOPER_POLL_ERROR;
}
return looper->pollAll(timeoutMillis, outFd, outEvents, outData);
}
void ALooper_wake(ALooper* looper) {
static_cast<Looper*>(looper)->wake();
}
int ALooper_addFd(ALooper* looper, int fd, int ident, int events,
ALooper_callbackFunc callback, void* data) {
return static_cast<Looper*>(looper)->addFd(fd, ident, events, callback, data);
}
int ALooper_removeFd(ALooper* looper, int fd) {
return static_cast<Looper*>(looper)->removeFd(fd);
}