gecko-dev/xpcom/threads/DelayedRunnable.h

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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 "nsIDelayedRunnableObserver.h"
#include "nsIRunnable.h"
#include "nsITimer.h"
#include "nsThreadUtils.h"
namespace mozilla {
class DelayedRunnable : public Runnable, public nsITimerCallback {
public:
DelayedRunnable(already_AddRefed<nsIEventTarget> aTarget,
already_AddRefed<nsIRunnable> aRunnable, uint32_t aDelay);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIRUNNABLE
NS_DECL_NSITIMERCALLBACK
nsresult Init();
/**
* Cancels the underlying timer. Called when the target is going away, so the
* runnable can be released safely on the target thread.
*/
void CancelTimer();
private:
~DelayedRunnable() = default;
nsresult DoRun();
const nsCOMPtr<nsIEventTarget> mTarget;
const nsCOMPtr<nsIDelayedRunnableObserver> mObserver;
nsCOMPtr<nsIRunnable> mWrappedRunnable;
nsCOMPtr<nsITimer> mTimer;
const TimeStamp mDelayedFrom;
uint32_t mDelay;
};
} // namespace mozilla
#endif