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/* -*- 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/. */
#ifndef mozilla_mscom_MainThreadInvoker_h
#define mozilla_mscom_MainThreadInvoker_h
#include <windows.h>
#include <utility>
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/TimeStamp.h"
#include "nsCOMPtr.h"
#include "nsThreadUtils.h"
class nsIRunnable;
namespace mozilla {
namespace mscom {
class MainThreadInvoker {
public:
MainThreadInvoker();
bool Invoke(already_AddRefed<nsIRunnable>&& aRunnable);
const TimeDuration& GetDuration() const { return mDuration; }
static HANDLE GetTargetThread() { return sMainThread; }
private:
TimeDuration mDuration;
static bool InitStatics();
static VOID CALLBACK MainThreadAPC(ULONG_PTR aParam);
static HANDLE sMainThread;
};
template <typename Class, typename... Args>
inline bool InvokeOnMainThread(const char* aName, Class* aObject,
void (Class::*aMethod)(Args...),
Args&&... aArgs) {
nsCOMPtr<nsIRunnable> runnable(NewNonOwningRunnableMethod<Args...>(
aName, aObject, aMethod, std::forward<Args>(aArgs)...));
MainThreadInvoker invoker;
return invoker.Invoke(runnable.forget());
}
} // namespace mscom
} // namespace mozilla
#endif // mozilla_mscom_MainThreadInvoker_h
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