gecko-dev/xpcom/threads/DelayedRunnable.h

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1.4 KiB
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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 XPCOM_THREADS_DELAYEDRUNNABLE_H_
#define XPCOM_THREADS_DELAYEDRUNNABLE_H_
#include "mozilla/TimeStamp.h"
#include "nsCOMPtr.h"
#include "nsIRunnable.h"
#include "nsITargetShutdownTask.h"
#include "nsITimer.h"
#include "nsThreadUtils.h"
namespace mozilla {
class DelayedRunnable : public Runnable,
public nsITimerCallback,
public nsITargetShutdownTask {
public:
DelayedRunnable(already_AddRefed<nsISerialEventTarget> aTarget,
already_AddRefed<nsIRunnable> aRunnable, uint32_t aDelay);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIRUNNABLE
NS_DECL_NSITIMERCALLBACK
nsresult Init();
/**
* Called when the target is going away so the runnable can be released safely
* on the target thread.
*/
void TargetShutdown() override;
private:
~DelayedRunnable() = default;
nsresult DoRun();
const nsCOMPtr<nsISerialEventTarget> mTarget;
const TimeStamp mDelayedFrom;
const uint32_t mDelay;
mozilla::Mutex mMutex{"DelayedRunnable"};
nsCOMPtr<nsIRunnable> mWrappedRunnable;
nsCOMPtr<nsITimer> mTimer;
};
} // namespace mozilla
#endif