/* -*- 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" 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 Init(); nsresult Shutdown(); nsresult AddTimer(nsTimerImpl* aTimer); nsresult RemoveTimer(nsTimerImpl* aTimer); void DoBeforeSleep(); void DoAfterSleep(); bool IsOnTimerThread() const { return mThread == NS_GetCurrentThread(); } private: ~TimerThread(); mozilla::Atomic<bool> mInitInProgress; bool mInitialized; // These two internal helper methods must be called while mMonitor is held. // AddTimerInternal returns the position where the timer was added in the // list, or -1 if it failed. int32_t AddTimerInternal(nsTimerImpl* aTimer); bool RemoveTimerInternal(nsTimerImpl* aTimer); void ReleaseTimerInternal(nsTimerImpl* aTimer); already_AddRefed<nsTimerImpl> PostTimerEvent(already_AddRefed<nsTimerImpl> aTimerRef); nsCOMPtr<nsIThread> mThread; Monitor mMonitor; bool mShutdown; bool mWaiting; bool mNotified; bool mSleeping; nsTArray<nsTimerImpl*> mTimers; }; struct TimerAdditionComparator { TimerAdditionComparator(const mozilla::TimeStamp& aNow, nsTimerImpl* aTimerToInsert) : now(aNow) #ifdef DEBUG , timerToInsert(aTimerToInsert) #endif { } bool LessThan(nsTimerImpl* aFromArray, nsTimerImpl* aNewTimer) const { MOZ_ASSERT(aNewTimer == timerToInsert, "Unexpected timer ordering"); // Skip any overdue timers. return aFromArray->mTimeout <= now || aFromArray->mTimeout <= aNewTimer->mTimeout; } bool Equals(nsTimerImpl* aFromArray, nsTimerImpl* aNewTimer) const { return false; } private: const mozilla::TimeStamp& now; #ifdef DEBUG const nsTimerImpl* const timerToInsert; #endif }; #endif /* TimerThread_h___ */