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