From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- dom/media/systemservices/OSXRunLoopSingleton.cpp | 41 ++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 dom/media/systemservices/OSXRunLoopSingleton.cpp (limited to 'dom/media/systemservices/OSXRunLoopSingleton.cpp') diff --git a/dom/media/systemservices/OSXRunLoopSingleton.cpp b/dom/media/systemservices/OSXRunLoopSingleton.cpp new file mode 100644 index 0000000000..6dea084e27 --- /dev/null +++ b/dom/media/systemservices/OSXRunLoopSingleton.cpp @@ -0,0 +1,41 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/ +/* 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/. */ + +#include "OSXRunLoopSingleton.h" +#include + +#include +#include +#include +#include + +static bool gRunLoopSet = false; +static mozilla::StaticMutex gMutex MOZ_UNANNOTATED; + +void mozilla_set_coreaudio_notification_runloop_if_needed() { + mozilla::StaticMutexAutoLock lock(gMutex); + if (gRunLoopSet) { + return; + } + + /* This is needed so that AudioUnit listeners get called on this thread, and + * not the main thread. If we don't do that, they are not called, or a crash + * occur, depending on the OSX version. */ + AudioObjectPropertyAddress runloop_address = { + kAudioHardwarePropertyRunLoop, kAudioObjectPropertyScopeGlobal, + kAudioObjectPropertyElementMaster}; + + CFRunLoopRef run_loop = nullptr; + + OSStatus r; + r = AudioObjectSetPropertyData(kAudioObjectSystemObject, &runloop_address, 0, + NULL, sizeof(CFRunLoopRef), &run_loop); + if (r != noErr) { + NS_WARNING( + "Could not make global CoreAudio notifications use their own thread."); + } + + gRunLoopSet = true; +} -- cgit v1.2.3