blob: 5363796df737f3667923479b192ddc709730c1a5 [file] [log] [blame]
// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/audio/audio_streams_tracker.h"
#include <limits>
namespace media {
AudioStreamsTracker::AudioStreamsTracker()
: current_stream_count_(0), max_stream_count_(0) {
thread_checker_.DetachFromThread();
}
AudioStreamsTracker::~AudioStreamsTracker() {
DCHECK_EQ(current_stream_count_, 0u);
}
void AudioStreamsTracker::IncreaseStreamCount() {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK_NE(current_stream_count_, std::numeric_limits<size_t>::max());
++current_stream_count_;
if (current_stream_count_ > max_stream_count_)
max_stream_count_ = current_stream_count_;
}
void AudioStreamsTracker::DecreaseStreamCount(size_t count) {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK_GE(current_stream_count_, count);
current_stream_count_ -= count;
}
void AudioStreamsTracker::ResetMaxStreamCount() {
DCHECK(thread_checker_.CalledOnValidThread());
max_stream_count_ = current_stream_count_;
}
size_t AudioStreamsTracker::max_stream_count() const {
DCHECK(thread_checker_.CalledOnValidThread());
return max_stream_count_;
}
} // namespace media