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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /dom/midi/MIDIMessageQueue.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/midi/MIDIMessageQueue.h')
-rw-r--r-- | dom/midi/MIDIMessageQueue.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/dom/midi/MIDIMessageQueue.h b/dom/midi/MIDIMessageQueue.h new file mode 100644 index 0000000000..cadfc1b249 --- /dev/null +++ b/dom/midi/MIDIMessageQueue.h @@ -0,0 +1,58 @@ +/* -*- 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" + +// XXX Avoid including this here by moving function implementations to the cpp +// file. +#include "mozilla/dom/MIDITypes.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>& aMsgQueue); + // Get all pending messages. + void GetMessages(nsTArray<MIDIMessage>& aMsgQueue); + // 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 MOZ_UNANNOTATED; +}; + +} // namespace dom +} // namespace mozilla + +#endif // mozilla_dom_MIDIMessageQueue_h |