gecko-dev/gfx/layers/apz/util/APZThreadUtils.cpp

68 строки
1.8 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "mozilla/layers/APZThreadUtils.h"
namespace mozilla {
namespace layers {
static bool sThreadAssertionsEnabled = true;
static MessageLoop* sControllerThread;
/*static*/
void APZThreadUtils::SetThreadAssertionsEnabled(bool aEnabled) {
sThreadAssertionsEnabled = aEnabled;
}
/*static*/
bool APZThreadUtils::GetThreadAssertionsEnabled() {
return sThreadAssertionsEnabled;
}
/*static*/
void APZThreadUtils::SetControllerThread(MessageLoop* aLoop) {
// We must either be setting the initial controller thread, or removing it,
// or re-using an existing controller thread.
MOZ_ASSERT(!sControllerThread || !aLoop || sControllerThread == aLoop);
sControllerThread = aLoop;
}
/*static*/
void APZThreadUtils::AssertOnControllerThread() {
if (!GetThreadAssertionsEnabled()) {
return;
}
MOZ_ASSERT(sControllerThread == MessageLoop::current());
}
/*static*/
void APZThreadUtils::RunOnControllerThread(RefPtr<Runnable>&& aTask) {
RefPtr<Runnable> task = std::move(aTask);
if (!sControllerThread) {
// Could happen on startup
NS_WARNING("Dropping task posted to controller thread");
return;
}
if (sControllerThread == MessageLoop::current()) {
task->Run();
} else {
sControllerThread->PostTask(task.forget());
}
}
/*static*/
bool APZThreadUtils::IsControllerThread() {
return sControllerThread == MessageLoop::current();
}
NS_IMPL_ISUPPORTS(GenericNamedTimerCallbackBase, nsITimerCallback, nsINamed)
} // namespace layers
} // namespace mozilla