blob: a7204810a369436bea2e195b07e7ecddf3a01b37 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/* -*- 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___ */
|
