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Use a condition variable to wake up the audio stream thread

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This should make starting streams a bit more responsive, and allows us to do
more in it that really shouldn't wait for its next wake up.
This commit is contained in:
Chris Robinson 2015-11-27 04:30:09 -08:00
parent 4a078725d4
commit 9568aa6a84
1 changed files with 8 additions and 4 deletions
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12
apps/openmw/mwsound/openal_output.cpp
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@ -217,6 +217,7 @@ struct OpenAL_Output::StreamThread {
typedef std::vector<OpenAL_SoundStream*> StreamVec;
StreamVec mStreams;
boost::recursive_mutex mMutex;
boost::condition_variable_any mCondVar;
boost::thread mThread;
StreamThread()
@ -231,9 +232,9 @@ struct OpenAL_Output::StreamThread {
// boost::thread entry point
void operator()()
{
boost::unique_lock<boost::recursive_mutex> lock(mMutex);
while(1)
{
boost::unique_lock<boost::recursive_mutex> lock(mMutex);
StreamVec::iterator iter = mStreams.begin();
while(iter != mStreams.end())
{
@ -242,16 +243,19 @@ struct OpenAL_Output::StreamThread {
else
++iter;
}
lock.unlock();
boost::this_thread::sleep(boost::posix_time::milliseconds(50));
mCondVar.timed_wait(lock, boost::posix_time::milliseconds(50));
}
}
void add(OpenAL_SoundStream *stream)
{
boost::lock_guard<boost::recursive_mutex> lock(mMutex);
boost::unique_lock<boost::recursive_mutex> lock(mMutex);
if(std::find(mStreams.begin(), mStreams.end(), stream) == mStreams.end())
{
mStreams.push_back(stream);
lock.unlock();
mCondVar.notify_all();
}
}
void remove(OpenAL_SoundStream *stream)