OLD | NEW |
| (Empty) |
1 /* | |
2 * Copyright (C) 2010 Apple Inc. All rights reserved. | |
3 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) | |
4 * Portions Copyright (c) 2010 Motorola Mobility, Inc. All rights reserved. | |
5 * | |
6 * Redistribution and use in source and binary forms, with or without | |
7 * modification, are permitted provided that the following conditions | |
8 * are met: | |
9 * 1. Redistributions of source code must retain the above copyright | |
10 * notice, this list of conditions and the following disclaimer. | |
11 * 2. Redistributions in binary form must reproduce the above copyright | |
12 * notice, this list of conditions and the following disclaimer in the | |
13 * documentation and/or other materials provided with the distribution. | |
14 * | |
15 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | |
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
17 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | |
19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
25 * THE POSSIBILITY OF SUCH DAMAGE. | |
26 */ | |
27 | |
28 #ifndef RunLoop_h | |
29 #define RunLoop_h | |
30 | |
31 #include <wtf/Deque.h> | |
32 #include <wtf/Forward.h> | |
33 #include <wtf/Functional.h> | |
34 #include <wtf/HashMap.h> | |
35 #include <wtf/ThreadSpecific.h> | |
36 #include <wtf/Threading.h> | |
37 | |
38 #if PLATFORM(GTK) | |
39 #include <wtf/gobject/GRefPtr.h> | |
40 #endif | |
41 | |
42 namespace WebCore { | |
43 | |
44 class RunLoop { | |
45 public: | |
46 // Must be called from the main thread (except for the Mac platform, where i
t | |
47 // can be called from any thread). | |
48 static void initializeMainRunLoop(); | |
49 | |
50 // Must be called before entering main run loop. If called, application styl
e run loop will be used, handling events. | |
51 static void setUseApplicationRunLoopOnMainRunLoop(); | |
52 | |
53 static RunLoop* current(); | |
54 static RunLoop* main(); | |
55 | |
56 void dispatch(const Function<void()>&); | |
57 | |
58 static void run(); | |
59 void stop(); | |
60 void wakeUp(); | |
61 | |
62 #if PLATFORM(MAC) | |
63 void runForDuration(double duration); | |
64 #endif | |
65 | |
66 class TimerBase { | |
67 friend class RunLoop; | |
68 public: | |
69 explicit TimerBase(RunLoop*); | |
70 virtual ~TimerBase(); | |
71 | |
72 void startRepeating(double repeatInterval) { start(repeatInterval, true)
; } | |
73 void startOneShot(double interval) { start(interval, false); } | |
74 | |
75 void stop(); | |
76 bool isActive() const; | |
77 | |
78 virtual void fired() = 0; | |
79 | |
80 private: | |
81 void start(double nextFireInterval, bool repeat); | |
82 | |
83 RunLoop* m_runLoop; | |
84 | |
85 #if PLATFORM(WIN) | |
86 static void timerFired(RunLoop*, uint64_t ID); | |
87 uint64_t m_ID; | |
88 bool m_isRepeating; | |
89 #elif PLATFORM(MAC) | |
90 static void timerFired(CFRunLoopTimerRef, void*); | |
91 CFRunLoopTimerRef m_timer; | |
92 #elif PLATFORM(QT) | |
93 static void timerFired(RunLoop*, int ID); | |
94 int m_ID; | |
95 bool m_isRepeating; | |
96 #elif PLATFORM(GTK) | |
97 static gboolean timerFiredCallback(RunLoop::TimerBase*); | |
98 gboolean isRepeating() const { return m_isRepeating; } | |
99 void clearTimerSource(); | |
100 GRefPtr<GSource> m_timerSource; | |
101 gboolean m_isRepeating; | |
102 #endif | |
103 }; | |
104 | |
105 template <typename TimerFiredClass> | |
106 class Timer : public TimerBase { | |
107 public: | |
108 typedef void (TimerFiredClass::*TimerFiredFunction)(); | |
109 | |
110 Timer(RunLoop* runLoop, TimerFiredClass* o, TimerFiredFunction f) | |
111 : TimerBase(runLoop) | |
112 , m_object(o) | |
113 , m_function(f) | |
114 { | |
115 } | |
116 | |
117 private: | |
118 virtual void fired() { (m_object->*m_function)(); } | |
119 | |
120 TimerFiredClass* m_object; | |
121 TimerFiredFunction m_function; | |
122 }; | |
123 | |
124 private: | |
125 friend class WTF::ThreadSpecific<RunLoop>; | |
126 | |
127 RunLoop(); | |
128 ~RunLoop(); | |
129 | |
130 void performWork(); | |
131 | |
132 Mutex m_functionQueueLock; | |
133 Deque<Function<void()> > m_functionQueue; | |
134 | |
135 #if PLATFORM(WIN) | |
136 static bool registerRunLoopMessageWindowClass(); | |
137 static LRESULT CALLBACK RunLoopWndProc(HWND, UINT, WPARAM, LPARAM); | |
138 LRESULT wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); | |
139 HWND m_runLoopMessageWindow; | |
140 | |
141 typedef HashMap<uint64_t, TimerBase*> TimerMap; | |
142 TimerMap m_activeTimers; | |
143 #elif PLATFORM(MAC) | |
144 RunLoop(CFRunLoopRef); | |
145 static void performWork(void*); | |
146 CFRunLoopRef m_runLoop; | |
147 CFRunLoopSourceRef m_runLoopSource; | |
148 int m_nestingLevel; | |
149 #elif PLATFORM(QT) | |
150 typedef HashMap<int, TimerBase*> TimerMap; | |
151 TimerMap m_activeTimers; | |
152 class TimerObject; | |
153 TimerObject* m_timerObject; | |
154 #elif PLATFORM(GTK) | |
155 public: | |
156 static gboolean queueWork(RunLoop*); | |
157 GMainLoop* innermostLoop(); | |
158 void pushNestedMainLoop(GMainLoop*); | |
159 void popNestedMainLoop(); | |
160 private: | |
161 GRefPtr<GMainContext> m_runLoopContext; | |
162 Vector<GRefPtr<GMainLoop> > m_runLoopMainLoops; | |
163 #endif | |
164 }; | |
165 | |
166 } // namespace WebCore | |
167 | |
168 #endif // RunLoop_h | |
OLD | NEW |