зеркало из https://github.com/mozilla/gecko-dev.git
116 строки
3.1 KiB
C++
116 строки
3.1 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/. */
|
|
|
|
#ifndef TimerThread_h___
|
|
#define TimerThread_h___
|
|
|
|
#include "nsIObserver.h"
|
|
#include "nsIRunnable.h"
|
|
#include "nsIThread.h"
|
|
|
|
#include "nsTimerImpl.h"
|
|
#include "nsThreadUtils.h"
|
|
|
|
#include "nsTArray.h"
|
|
|
|
#include "mozilla/Atomics.h"
|
|
#include "mozilla/Attributes.h"
|
|
#include "mozilla/Monitor.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
|
|
#include <algorithm>
|
|
|
|
namespace mozilla {
|
|
class TimeStamp;
|
|
} // namespace mozilla
|
|
|
|
class TimerThread final : public nsIRunnable, public nsIObserver {
|
|
public:
|
|
typedef mozilla::Monitor Monitor;
|
|
typedef mozilla::TimeStamp TimeStamp;
|
|
typedef mozilla::TimeDuration TimeDuration;
|
|
|
|
TimerThread();
|
|
nsresult InitLocks();
|
|
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSIRUNNABLE
|
|
NS_DECL_NSIOBSERVER
|
|
|
|
nsresult Shutdown();
|
|
|
|
nsresult AddTimer(nsTimerImpl* aTimer);
|
|
nsresult RemoveTimer(nsTimerImpl* aTimer);
|
|
TimeStamp FindNextFireTimeForCurrentThread(TimeStamp aDefault,
|
|
uint32_t aSearchBound);
|
|
|
|
void DoBeforeSleep();
|
|
void DoAfterSleep();
|
|
|
|
bool IsOnTimerThread() const {
|
|
return mThread->SerialEventTarget()->IsOnCurrentThread();
|
|
}
|
|
|
|
uint32_t AllowedEarlyFiringMicroseconds() const;
|
|
|
|
private:
|
|
~TimerThread();
|
|
|
|
bool mInitialized;
|
|
|
|
// These internal helper methods must be called while mMonitor is held.
|
|
// AddTimerInternal returns false if the insertion failed.
|
|
bool AddTimerInternal(nsTimerImpl* aTimer);
|
|
bool RemoveTimerInternal(nsTimerImpl* aTimer);
|
|
void RemoveLeadingCanceledTimersInternal();
|
|
void RemoveFirstTimerInternal();
|
|
nsresult Init();
|
|
|
|
already_AddRefed<nsTimerImpl> PostTimerEvent(
|
|
already_AddRefed<nsTimerImpl> aTimerRef);
|
|
|
|
nsCOMPtr<nsIThread> mThread;
|
|
Monitor mMonitor;
|
|
|
|
bool mShutdown;
|
|
bool mWaiting;
|
|
bool mNotified;
|
|
bool mSleeping;
|
|
|
|
class Entry final : public nsTimerImplHolder {
|
|
const TimeStamp mTimeout;
|
|
|
|
public:
|
|
Entry(const TimeStamp& aMinTimeout, const TimeStamp& aTimeout,
|
|
nsTimerImpl* aTimerImpl)
|
|
: nsTimerImplHolder(aTimerImpl),
|
|
mTimeout(std::max(aMinTimeout, aTimeout)) {}
|
|
|
|
nsTimerImpl* Value() const { return mTimerImpl; }
|
|
|
|
already_AddRefed<nsTimerImpl> Take() {
|
|
if (mTimerImpl) {
|
|
mTimerImpl->SetHolder(nullptr);
|
|
}
|
|
return mTimerImpl.forget();
|
|
}
|
|
|
|
static bool UniquePtrLessThan(mozilla::UniquePtr<Entry>& aLeft,
|
|
mozilla::UniquePtr<Entry>& aRight) {
|
|
// This is reversed because std::push_heap() sorts the "largest" to
|
|
// the front of the heap. We want that to be the earliest timer.
|
|
return aRight->mTimeout < aLeft->mTimeout;
|
|
}
|
|
|
|
TimeStamp Timeout() const { return mTimeout; }
|
|
};
|
|
|
|
nsTArray<mozilla::UniquePtr<Entry>> mTimers;
|
|
uint32_t mAllowedEarlyFiringMicroseconds;
|
|
};
|
|
|
|
#endif /* TimerThread_h___ */
|