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/* -*- Mode: C++; tab-width: 8; 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/. */
#ifndef mozilla_layers_CompositorThread_h
#define mozilla_layers_CompositorThread_h
#include "base/basictypes.h" // for DISALLOW_EVIL_CONSTRUCTORS
#include "base/platform_thread.h" // for PlatformThreadId
#include "base/thread.h" // for Thread
#include "base/message_loop.h"
#include "nsISupportsImpl.h"
#include "ThreadSafeRefcountingWithMainThreadDestruction.h"
namespace mozilla {
namespace layers {
class CompositorThreadHolder final
{
NS_INLINE_DECL_THREADSAFE_REFCOUNTING_WITH_MAIN_THREAD_DESTRUCTION(CompositorThreadHolder)
public:
CompositorThreadHolder();
base::Thread* GetCompositorThread() const {
return mCompositorThread;
}
static CompositorThreadHolder* GetSingleton();
static bool IsActive() {
return !!GetSingleton();
}
/**
* Creates the compositor thread and the global compositor map.
*/
static void Start();
/*
* Waits for all [CrossProcess]CompositorBridgeParents to shutdown and
* releases compositor-thread owned resources.
*/
static void Shutdown();
static MessageLoop* Loop();
// Returns true if the calling thread is the compositor thread.
static bool IsInCompositorThread();
private:
~CompositorThreadHolder();
base::Thread* const mCompositorThread;
static base::Thread* CreateCompositorThread();
static void DestroyCompositorThread(base::Thread* aCompositorThread);
friend class CompositorBridgeParent;
};
base::Thread* CompositorThread();
} // namespace layers
} // namespace mozilla
#endif // mozilla_layers_CompositorThread_h
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