зеркало из https://github.com/mozilla/gecko-dev.git
117 строки
2.4 KiB
C++
117 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set sw=2 ts=2 et tw=80 : */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/AudioChild.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_THREADSAFE_ADDREF(AudioChild);
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NS_IMPL_THREADSAFE_RELEASE(AudioChild);
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AudioChild::AudioChild()
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: mLastPosition(-1),
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mLastPositionTimestamp(0),
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mWriteCounter(0),
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mMinWriteSize(-2),// Initial value, -2, error on -1
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mAudioReentrantMonitor("AudioChild.mReentrantMonitor"),
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mIPCOpen(true),
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mDrained(false)
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{
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MOZ_COUNT_CTOR(AudioChild);
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}
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AudioChild::~AudioChild()
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{
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MOZ_COUNT_DTOR(AudioChild);
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}
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void
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AudioChild::ActorDestroy(ActorDestroyReason aWhy)
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{
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mIPCOpen = false;
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}
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bool
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AudioChild::RecvPositionInFramesUpdate(const int64_t& position,
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const int64_t& time)
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{
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mLastPosition = position;
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mLastPositionTimestamp = time;
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return true;
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}
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bool
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AudioChild::RecvDrainDone()
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{
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ReentrantMonitorAutoEnter mon(mAudioReentrantMonitor);
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mDrained = true;
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mAudioReentrantMonitor.NotifyAll();
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return true;
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}
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int32_t
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AudioChild::WaitForMinWriteSize()
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{
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ReentrantMonitorAutoEnter mon(mAudioReentrantMonitor);
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// -2 : initial value
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while (mMinWriteSize == -2 && mIPCOpen) {
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mAudioReentrantMonitor.Wait();
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}
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return mMinWriteSize;
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}
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bool
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AudioChild::RecvMinWriteSizeDone(const int32_t& minFrames)
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{
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ReentrantMonitorAutoEnter mon(mAudioReentrantMonitor);
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mMinWriteSize = minFrames;
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mAudioReentrantMonitor.NotifyAll();
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return true;
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}
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void
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AudioChild::WaitForDrain()
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{
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ReentrantMonitorAutoEnter mon(mAudioReentrantMonitor);
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while (!mDrained && mIPCOpen) {
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mAudioReentrantMonitor.Wait();
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}
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}
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bool
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AudioChild::RecvWriteDone()
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{
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ReentrantMonitorAutoEnter mon(mAudioReentrantMonitor);
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mWriteCounter += 1;
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mAudioReentrantMonitor.NotifyAll();
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return true;
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}
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void
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AudioChild::WaitForWrite()
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{
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ReentrantMonitorAutoEnter mon(mAudioReentrantMonitor);
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uint64_t writeCounter = mWriteCounter;
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while (mWriteCounter == writeCounter && mIPCOpen) {
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mAudioReentrantMonitor.Wait();
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}
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}
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int64_t
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AudioChild::GetLastKnownPosition()
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{
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return mLastPosition;
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}
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int64_t
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AudioChild::GetLastKnownPositionTimestamp()
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{
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return mLastPositionTimestamp;
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}
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} // namespace dom
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} // namespace mozilla
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