42c03e579a
The ALooper API now uses an explicit "identifier" for the integer that is returned rather than implicitly using the fd. This allows the APIs that had the fd to be a little more sane. Change-Id: I8507f535ad484c0bdc4a1bd016d87bb09acd7ff0
83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "ALooper"
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#include <utils/Log.h>
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#include <android/looper.h>
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#include <utils/PollLoop.h>
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using android::PollLoop;
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using android::sp;
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ALooper* ALooper_forThread() {
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return PollLoop::getForThread().get();
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}
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ALooper* ALooper_prepare(int32_t opts) {
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bool allowFds = (opts&ALOOPER_PREPARE_ALLOW_NON_CALLBACKS) != 0;
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sp<PollLoop> loop = PollLoop::getForThread();
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if (loop == NULL) {
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loop = new PollLoop(allowFds);
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PollLoop::setForThread(loop);
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}
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if (loop->getAllowNonCallbacks() != allowFds) {
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LOGW("ALooper_prepare again with different ALOOPER_PREPARE_ALLOW_NON_CALLBACKS");
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}
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return loop.get();
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}
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int32_t ALooper_pollOnce(int timeoutMillis, int* outEvents, void** outData) {
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sp<PollLoop> loop = PollLoop::getForThread();
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if (loop == NULL) {
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LOGW("ALooper_pollOnce: No looper for this thread!");
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return -1;
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}
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return loop->pollOnce(timeoutMillis, outEvents, outData);
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}
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int32_t ALooper_pollAll(int timeoutMillis, int* outEvents, void** outData) {
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sp<PollLoop> loop = PollLoop::getForThread();
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if (loop == NULL) {
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LOGW("ALooper_pollOnce: No looper for this thread!");
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return -1;
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}
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int32_t result;
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while ((result = loop->pollOnce(timeoutMillis, outEvents, outData)) == ALOOPER_POLL_CALLBACK) {
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;
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}
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return result;
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}
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void ALooper_acquire(ALooper* looper) {
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static_cast<PollLoop*>(looper)->incStrong((void*)ALooper_acquire);
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}
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void ALooper_release(ALooper* looper) {
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static_cast<PollLoop*>(looper)->decStrong((void*)ALooper_acquire);
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}
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void ALooper_addFd(ALooper* looper, int fd, int ident, int events,
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ALooper_callbackFunc* callback, void* data) {
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static_cast<PollLoop*>(looper)->setLooperCallback(fd, ident, events, callback, data);
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}
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int32_t ALooper_removeFd(ALooper* looper, int fd) {
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return static_cast<PollLoop*>(looper)->removeCallback(fd) ? 1 : 0;
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}
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