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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 |
| (...skipping 21 matching lines...) Expand all Loading... |
| 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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