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1 /* | 1 /* |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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32 #define WorkerRunLoop_h | 32 #define WorkerRunLoop_h |
33 | 33 |
34 #include "core/dom/ScriptExecutionContext.h" | 34 #include "core/dom/ScriptExecutionContext.h" |
35 #include <wtf/MessageQueue.h> | 35 #include <wtf/MessageQueue.h> |
36 #include <wtf/OwnPtr.h> | 36 #include <wtf/OwnPtr.h> |
37 #include <wtf/PassOwnPtr.h> | 37 #include <wtf/PassOwnPtr.h> |
38 | 38 |
39 namespace WebCore { | 39 namespace WebCore { |
40 | 40 |
41 class ModePredicate; | 41 class ModePredicate; |
42 class WorkerContext; | 42 class WorkerGlobalScope; |
43 class WorkerSharedTimer; | 43 class WorkerSharedTimer; |
44 | 44 |
45 class WorkerRunLoop { | 45 class WorkerRunLoop { |
46 public: | 46 public: |
47 WorkerRunLoop(); | 47 WorkerRunLoop(); |
48 ~WorkerRunLoop(); | 48 ~WorkerRunLoop(); |
49 | 49 |
50 // Blocking call. Waits for tasks and timers, invokes the callbacks. | 50 // Blocking call. Waits for tasks and timers, invokes the callbacks. |
51 void run(WorkerContext*); | 51 void run(WorkerGlobalScope*); |
52 | 52 |
53 enum WaitMode { WaitForMessage, DontWaitForMessage }; | 53 enum WaitMode { WaitForMessage, DontWaitForMessage }; |
54 | 54 |
55 // Waits for a single task and returns. | 55 // Waits for a single task and returns. |
56 MessageQueueWaitResult runInMode(WorkerContext*, const String& mode, Wai
tMode = WaitForMessage); | 56 MessageQueueWaitResult runInMode(WorkerGlobalScope*, const String& mode,
WaitMode = WaitForMessage); |
57 | 57 |
58 void terminate(); | 58 void terminate(); |
59 bool terminated() const { return m_messageQueue.killed(); } | 59 bool terminated() const { return m_messageQueue.killed(); } |
60 | 60 |
61 void postTask(PassOwnPtr<ScriptExecutionContext::Task>); | 61 void postTask(PassOwnPtr<ScriptExecutionContext::Task>); |
62 void postTaskAndTerminate(PassOwnPtr<ScriptExecutionContext::Task>); | 62 void postTaskAndTerminate(PassOwnPtr<ScriptExecutionContext::Task>); |
63 void postTaskForMode(PassOwnPtr<ScriptExecutionContext::Task>, const Str
ing& mode); | 63 void postTaskForMode(PassOwnPtr<ScriptExecutionContext::Task>, const Str
ing& mode); |
64 | 64 |
65 unsigned long createUniqueId() { return ++m_uniqueId; } | 65 unsigned long createUniqueId() { return ++m_uniqueId; } |
66 | 66 |
67 static String defaultMode(); | 67 static String defaultMode(); |
68 | 68 |
69 class Task { | 69 class Task { |
70 WTF_MAKE_NONCOPYABLE(Task); WTF_MAKE_FAST_ALLOCATED; | 70 WTF_MAKE_NONCOPYABLE(Task); WTF_MAKE_FAST_ALLOCATED; |
71 public: | 71 public: |
72 static PassOwnPtr<Task> create(PassOwnPtr<ScriptExecutionContext::Ta
sk> task, const String& mode); | 72 static PassOwnPtr<Task> create(PassOwnPtr<ScriptExecutionContext::Ta
sk> task, const String& mode); |
73 ~Task() { } | 73 ~Task() { } |
74 const String& mode() const { return m_mode; } | 74 const String& mode() const { return m_mode; } |
75 void performTask(const WorkerRunLoop&, ScriptExecutionContext*); | 75 void performTask(const WorkerRunLoop&, ScriptExecutionContext*); |
76 | 76 |
77 private: | 77 private: |
78 Task(PassOwnPtr<ScriptExecutionContext::Task> task, const String& mo
de); | 78 Task(PassOwnPtr<ScriptExecutionContext::Task> task, const String& mo
de); |
79 | 79 |
80 OwnPtr<ScriptExecutionContext::Task> m_task; | 80 OwnPtr<ScriptExecutionContext::Task> m_task; |
81 String m_mode; | 81 String m_mode; |
82 }; | 82 }; |
83 | 83 |
84 private: | 84 private: |
85 friend class RunLoopSetup; | 85 friend class RunLoopSetup; |
86 MessageQueueWaitResult runInMode(WorkerContext*, const ModePredicate&, W
aitMode); | 86 MessageQueueWaitResult runInMode(WorkerGlobalScope*, const ModePredicate
&, WaitMode); |
87 | 87 |
88 // Runs any clean up tasks that are currently in the queue and returns. | 88 // Runs any clean up tasks that are currently in the queue and returns. |
89 // This should only be called when the context is closed or loop has bee
n terminated. | 89 // This should only be called when the context is closed or loop has bee
n terminated. |
90 void runCleanupTasks(WorkerContext*); | 90 void runCleanupTasks(WorkerGlobalScope*); |
91 | 91 |
92 void idleNotification(double idlenessInterval); | 92 void idleNotification(double idlenessInterval); |
93 | 93 |
94 MessageQueue<Task> m_messageQueue; | 94 MessageQueue<Task> m_messageQueue; |
95 OwnPtr<WorkerSharedTimer> m_sharedTimer; | 95 OwnPtr<WorkerSharedTimer> m_sharedTimer; |
96 int m_nestedCount; | 96 int m_nestedCount; |
97 unsigned long m_uniqueId; | 97 unsigned long m_uniqueId; |
98 double m_currentIdleIntervalInSeconds; | 98 double m_currentIdleIntervalInSeconds; |
99 double m_nextIdleNotificationTime; | 99 double m_nextIdleNotificationTime; |
100 }; | 100 }; |
101 | 101 |
102 } // namespace WebCore | 102 } // namespace WebCore |
103 | 103 |
104 #endif // WorkerRunLoop_h | 104 #endif // WorkerRunLoop_h |
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