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https://github.com/roytam1/palemoon27.git
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Moonchild
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "mozilla/layers/APZThreadUtils.h"
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#include "mozilla/layers/Compositor.h"
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namespace mozilla {
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namespace layers {
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static bool sThreadAssertionsEnabled = true;
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static PRThread* sControllerThread;
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/*static*/ void
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APZThreadUtils::SetThreadAssertionsEnabled(bool aEnabled) {
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sThreadAssertionsEnabled = aEnabled;
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}
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/*static*/ bool
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APZThreadUtils::GetThreadAssertionsEnabled() {
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return sThreadAssertionsEnabled;
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}
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/*static*/ void
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APZThreadUtils::AssertOnControllerThread() {
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if (!GetThreadAssertionsEnabled()) {
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return;
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}
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static bool sControllerThreadDetermined = false;
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if (!sControllerThreadDetermined) {
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// Technically this may not actually pick up the correct controller thread,
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// if the first call to this method happens from a non-controller thread.
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// If the assertion below fires, it is possible that it is because
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// sControllerThread is not actually the controller thread.
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sControllerThread = PR_GetCurrentThread();
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sControllerThreadDetermined = true;
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}
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MOZ_ASSERT(sControllerThread == PR_GetCurrentThread());
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}
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/*static*/ void
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APZThreadUtils::AssertOnCompositorThread()
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{
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if (GetThreadAssertionsEnabled()) {
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Compositor::AssertOnCompositorThread();
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}
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}
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/*static*/ void
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APZThreadUtils::RunOnControllerThread(Task* aTask)
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{
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#ifdef MOZ_WIDGET_GONK
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// On B2G the controller thread is the compositor thread, and this function
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// is always called from the libui thread or the main thread.
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MessageLoop* loop = CompositorParent::CompositorLoop();
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MOZ_ASSERT(MessageLoop::current() != loop);
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loop->PostTask(FROM_HERE, aTask);
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#else
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// On non-B2G platforms this is only ever called from the controller thread
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// itself.
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AssertOnControllerThread();
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aTask->Run();
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delete aTask;
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#endif
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}
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} // namespace layers
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} // namespace mozilla
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