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comparison: xpcom/threads/TimerThread.h
xpcom/threads/TimerThread.h
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| -1:000000000000 | 0:197a793701e6 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef TimerThread_h___ | |
| 7 #define TimerThread_h___ | |
| 8 | |
| 9 #include "nsIObserver.h" | |
| 10 #include "nsIRunnable.h" | |
| 11 #include "nsIThread.h" | |
| 12 | |
| 13 #include "nsTimerImpl.h" | |
| 14 #include "nsThreadUtils.h" | |
| 15 | |
| 16 #include "nsTArray.h" | |
| 17 | |
| 18 #include "mozilla/Atomics.h" | |
| 19 #include "mozilla/Attributes.h" | |
| 20 #include "mozilla/Monitor.h" | |
| 21 | |
| 22 namespace mozilla { | |
| 23 class TimeStamp; | |
| 24 } | |
| 25 | |
| 26 class TimerThread MOZ_FINAL : public nsIRunnable, | |
| 27 public nsIObserver | |
| 28 { | |
| 29 public: | |
| 30 typedef mozilla::Monitor Monitor; | |
| 31 typedef mozilla::TimeStamp TimeStamp; | |
| 32 typedef mozilla::TimeDuration TimeDuration; | |
| 33 | |
| 34 TimerThread(); | |
| 35 NS_HIDDEN_(nsresult) InitLocks(); | |
| 36 | |
| 37 NS_DECL_THREADSAFE_ISUPPORTS | |
| 38 NS_DECL_NSIRUNNABLE | |
| 39 NS_DECL_NSIOBSERVER | |
| 40 | |
| 41 NS_HIDDEN_(nsresult) Init(); | |
| 42 NS_HIDDEN_(nsresult) Shutdown(); | |
| 43 | |
| 44 nsresult AddTimer(nsTimerImpl *aTimer); | |
| 45 nsresult TimerDelayChanged(nsTimerImpl *aTimer); | |
| 46 nsresult RemoveTimer(nsTimerImpl *aTimer); | |
| 47 | |
| 48 void DoBeforeSleep(); | |
| 49 void DoAfterSleep(); | |
| 50 | |
| 51 bool IsOnTimerThread() const | |
| 52 { | |
| 53 return mThread == NS_GetCurrentThread(); | |
| 54 } | |
| 55 | |
| 56 private: | |
| 57 ~TimerThread(); | |
| 58 | |
| 59 mozilla::Atomic<bool> mInitInProgress; | |
| 60 bool mInitialized; | |
| 61 | |
| 62 // These two internal helper methods must be called while mLock is held. | |
| 63 // AddTimerInternal returns the position where the timer was added in the | |
| 64 // list, or -1 if it failed. | |
| 65 int32_t AddTimerInternal(nsTimerImpl *aTimer); | |
| 66 bool RemoveTimerInternal(nsTimerImpl *aTimer); | |
| 67 void ReleaseTimerInternal(nsTimerImpl *aTimer); | |
| 68 | |
| 69 nsCOMPtr<nsIThread> mThread; | |
| 70 Monitor mMonitor; | |
| 71 | |
| 72 bool mShutdown; | |
| 73 bool mWaiting; | |
| 74 bool mNotified; | |
| 75 bool mSleeping; | |
| 76 | |
| 77 nsTArray<nsTimerImpl*> mTimers; | |
| 78 }; | |
| 79 | |
| 80 struct TimerAdditionComparator { | |
| 81 TimerAdditionComparator(const mozilla::TimeStamp &aNow, | |
| 82 nsTimerImpl *aTimerToInsert) : | |
| 83 now(aNow) | |
| 84 #ifdef DEBUG | |
| 85 , timerToInsert(aTimerToInsert) | |
| 86 #endif | |
| 87 {} | |
| 88 | |
| 89 bool LessThan(nsTimerImpl *fromArray, nsTimerImpl *newTimer) const { | |
| 90 NS_ABORT_IF_FALSE(newTimer == timerToInsert, "Unexpected timer ordering"); | |
| 91 | |
| 92 // Skip any overdue timers. | |
| 93 return fromArray->mTimeout <= now || | |
| 94 fromArray->mTimeout <= newTimer->mTimeout; | |
| 95 } | |
| 96 | |
| 97 bool Equals(nsTimerImpl* fromArray, nsTimerImpl* newTimer) const { | |
| 98 return false; | |
| 99 } | |
| 100 | |
| 101 private: | |
| 102 const mozilla::TimeStamp &now; | |
| 103 #ifdef DEBUG | |
| 104 const nsTimerImpl * const timerToInsert; | |
| 105 #endif | |
| 106 }; | |
| 107 | |
| 108 #endif /* TimerThread_h___ */ |
