mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-13 01:55:44 +00:00
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim:set ts=2 sw=2 sts=2 et cindent: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef mozilla_dom_MIDIMessageQueue_h
|
|
#define mozilla_dom_MIDIMessageQueue_h
|
|
|
|
#include "mozilla/Mutex.h"
|
|
#include "nsTArray.h"
|
|
|
|
namespace mozilla {
|
|
|
|
class TimeStamp;
|
|
|
|
namespace dom {
|
|
|
|
class MIDIMessage;
|
|
|
|
/**
|
|
* Since some MIDI Messages can be scheduled to be sent in the future, the
|
|
* MIDIMessageQueue is responsible for making sure all MIDI messages are
|
|
* scheduled and sent in order.
|
|
*/
|
|
class MIDIMessageQueue {
|
|
public:
|
|
MIDIMessageQueue();
|
|
~MIDIMessageQueue() = default;
|
|
// Adds an array of possibly out-of-order messages to our queue.
|
|
void Add(nsTArray<MIDIMessage>& aMsg);
|
|
// Retrieve all pending messages before the time specified.
|
|
void GetMessagesBefore(TimeStamp aTimestamp,
|
|
nsTArray<MIDIMessage>& aMsgArray);
|
|
// Get all pending messages.
|
|
void GetMessages(nsTArray<MIDIMessage>& aMsgArray);
|
|
// Erase all pending messages.
|
|
void Clear();
|
|
// Erase all pending messages that would be sent in the future. Useful for
|
|
// when ports are closed, as we must send all messages with timestamps in the
|
|
// past.
|
|
void ClearAfterNow();
|
|
|
|
private:
|
|
// Array of messages to be sent.
|
|
nsTArray<MIDIMessage> mMessageQueue;
|
|
// Mutex for coordinating cross thread array access.
|
|
Mutex mMutex;
|
|
};
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_dom_MIDIMessageQueue_h
|