本文整理汇总了C++中nsRefPtr::Drain方法的典型用法代码示例。如果您正苦于以下问题：C++ nsRefPtr::Drain方法的具体用法？C++ nsRefPtr::Drain怎么用？C++ nsRefPtr::Drain使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类nsRefPtr的用法示例。
在下文中一共展示了nsRefPtr::Drain方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: monitor
//.........这里部分代码省略.........
if (NS_FAILED(rv)) {
NS_WARNING("Seek failed");
mPlaybackPosition = oldPosition;
FirePositionChanged(PR_TRUE);
}
if (mState == STATE_SHUTDOWN) {
break;
}
if (mState == STATE_SEEKING && mSeekTime == seekTime) {
// Special case #1: if a seek was requested during metadata load,
// mNextState will have been clobbered. This can only happen when
// we're instantiating a decoder to service a seek request after
// playback has ended, so we know that the clobbered mNextState
// was PAUSED.
// Special case #2: if a seek is requested after the state machine
// entered STATE_ENDED but before the user has seen the ended
// event, playback has not ended as far as the user's
// concerned--the state machine needs to return to the last
// playback state.
// Special case #3: if seeking to the end of the media, transition
// directly into STATE_ENDED.
State nextState = mNextState;
if (nextState == STATE_SEEKING) {
nextState = STATE_PAUSED;
} else if (nextState == STATE_ENDED) {
nextState = mPaused ? STATE_PAUSED : STATE_PLAYING;
} else if (GetDuration() == seekTime) {
nextState = STATE_ENDED;
}
ChangeState(nextState);
}
if (mState != STATE_SEEKING) {
monitor.Exit();
nsCOMPtr<nsIRunnable> stopEvent =
NS_NewRunnableMethod(mDecoder, &nsWaveDecoder::SeekingStopped);
NS_DispatchToMainThread(stopEvent, NS_DISPATCH_SYNC);
monitor.Enter();
}
}
break;
case STATE_PAUSED:
monitor.Wait();
break;
case STATE_ENDED:
FirePositionChanged(PR_TRUE);
if (mAudioStream) {
monitor.Exit();
mAudioStream->Drain();
monitor.Enter();
// After the drain call the audio stream is unusable. Close it so that
// next time audio is used a new stream is created.
CloseAudioStream();
}
mPlaybackEnded = PR_TRUE;
if (mState == STATE_ENDED) {
nsCOMPtr<nsIRunnable> event =
NS_NewRunnableMethod(mDecoder, &nsWaveDecoder::PlaybackEnded);
NS_DispatchToMainThread(event, NS_DISPATCH_NORMAL);
// We've finished playback. Shutdown the state machine thread,
// in order to save memory on thread stacks, particuarly on Linux.
event = new ShutdownThreadEvent(mDecoder->mPlaybackThread);
NS_DispatchToMainThread(event, NS_DISPATCH_NORMAL);
mDecoder->mPlaybackThread = nsnull;
return NS_OK;
}
break;
case STATE_ERROR:
{
nsCOMPtr<nsIRunnable> event = NS_NewRunnableMethod(mDecoder, &nsWaveDecoder::DecodeError);
NS_DispatchToMainThread(event, NS_DISPATCH_NORMAL);
monitor.Wait();
if (mState != STATE_SHUTDOWN) {
NS_WARNING("Invalid state transition");
ChangeState(STATE_ERROR);
}
}
break;
case STATE_SHUTDOWN:
mPlaybackEnded = PR_TRUE;
CloseAudioStream();
return NS_OK;
}
}
return NS_OK;
}