зеркало из https://github.com/mozilla/gecko-dev.git
74 строки
1.9 KiB
C++
74 строки
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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 "MIDIMessageQueue.h"
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#include "mozilla/dom/MIDITypes.h"
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namespace mozilla::dom {
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MIDIMessageQueue::MIDIMessageQueue() : mMutex("MIDIMessageQueue::mMutex") {}
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class MIDIMessageTimestampComparator {
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public:
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bool Equals(const MIDIMessage& a, const MIDIMessage& b) const {
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return a.timestamp() == b.timestamp();
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}
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bool LessThan(const MIDIMessage& a, const MIDIMessage& b) const {
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return a.timestamp() < b.timestamp();
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}
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};
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void MIDIMessageQueue::Add(nsTArray<MIDIMessage>& aMsg) {
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MutexAutoLock lock(mMutex);
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for (auto msg : aMsg) {
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mMessageQueue.InsertElementSorted(msg, MIDIMessageTimestampComparator());
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}
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}
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void MIDIMessageQueue::GetMessagesBefore(TimeStamp aTimestamp,
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nsTArray<MIDIMessage>& aMsgQueue) {
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MutexAutoLock lock(mMutex);
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int i = 0;
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for (auto msg : mMessageQueue) {
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if (aTimestamp < msg.timestamp()) {
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break;
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}
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aMsgQueue.AppendElement(msg);
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i++;
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}
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if (i > 0) {
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mMessageQueue.RemoveElementsAt(0, i);
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}
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}
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void MIDIMessageQueue::GetMessages(nsTArray<MIDIMessage>& aMsgQueue) {
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MutexAutoLock lock(mMutex);
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aMsgQueue.AppendElements(mMessageQueue);
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mMessageQueue.Clear();
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}
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void MIDIMessageQueue::Clear() {
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MutexAutoLock lock(mMutex);
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mMessageQueue.Clear();
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}
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void MIDIMessageQueue::ClearAfterNow() {
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MutexAutoLock lock(mMutex);
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TimeStamp now = TimeStamp::Now();
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int i = 0;
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for (auto msg : mMessageQueue) {
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if (now < msg.timestamp()) {
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break;
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}
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i++;
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}
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if (i > 0) {
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mMessageQueue.RemoveElementsAt(0, i);
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}
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}
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} // namespace mozilla::dom
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