115 lines
3.0 KiB
C++
115 lines
3.0 KiB
C++
/*
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* Copyright (C) 2007 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_NDEBUG 0
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#define LOG_TAG "SoundPoolThread"
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#include "utils/Log.h"
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#include "SoundPoolThread.h"
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namespace android {
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void SoundPoolThread::write(SoundPoolMsg msg) {
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Mutex::Autolock lock(&mLock);
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while (mMsgQueue.size() >= maxMessages) {
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mCondition.wait(mLock);
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}
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// if thread is quitting, don't add to queue
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if (mRunning) {
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mMsgQueue.push(msg);
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mCondition.signal();
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}
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}
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const SoundPoolMsg SoundPoolThread::read() {
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Mutex::Autolock lock(&mLock);
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while (mMsgQueue.size() == 0) {
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mCondition.wait(mLock);
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}
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SoundPoolMsg msg = mMsgQueue[0];
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mMsgQueue.removeAt(0);
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mCondition.signal();
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return msg;
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}
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void SoundPoolThread::quit() {
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Mutex::Autolock lock(&mLock);
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if (mRunning) {
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mRunning = false;
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mMsgQueue.clear();
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mMsgQueue.push(SoundPoolMsg(SoundPoolMsg::KILL, 0));
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mCondition.signal();
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mCondition.wait(mLock);
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}
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LOGV("return from quit");
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}
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SoundPoolThread::SoundPoolThread(SoundPool* soundPool) :
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mSoundPool(soundPool)
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{
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mMsgQueue.setCapacity(maxMessages);
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if (createThreadEtc(beginThread, this, "SoundPoolThread")) {
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mRunning = true;
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}
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}
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SoundPoolThread::~SoundPoolThread()
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{
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quit();
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}
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int SoundPoolThread::beginThread(void* arg) {
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LOGV("beginThread");
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SoundPoolThread* soundPoolThread = (SoundPoolThread*)arg;
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return soundPoolThread->run();
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}
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int SoundPoolThread::run() {
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LOGV("run");
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for (;;) {
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SoundPoolMsg msg = read();
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LOGV("Got message m=%d, mData=%d", msg.mMessageType, msg.mData);
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switch (msg.mMessageType) {
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case SoundPoolMsg::KILL:
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LOGV("goodbye");
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return NO_ERROR;
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case SoundPoolMsg::LOAD_SAMPLE:
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doLoadSample(msg.mData);
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break;
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default:
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LOGW("run: Unrecognized message %d\n",
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msg.mMessageType);
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break;
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}
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}
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}
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void SoundPoolThread::loadSample(int sampleID) {
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write(SoundPoolMsg(SoundPoolMsg::LOAD_SAMPLE, sampleID));
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}
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void SoundPoolThread::doLoadSample(int sampleID) {
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sp <Sample> sample = mSoundPool->findSample(sampleID);
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status_t status = -1;
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if (sample != 0) {
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status = sample->doLoad();
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}
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mSoundPool->notify(SoundPoolEvent(SoundPoolEvent::SAMPLE_LOADED, sampleID, status));
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}
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} // end namespace android
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