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31 #ifndef WorkerRunLoop_h
32 #define WorkerRunLoop_h
34 #include "core/dom/ExecutionContext.h"
35 #include "core/dom/ExecutionContextTask.h"
36 #include "wtf/Functional.h"
37 #include "wtf/MessageQueue.h"
38 #include "wtf/OwnPtr.h"
39 #include "wtf/PassOwnPtr.h"
44 class WorkerGlobalScope;
45 class WorkerSharedTimer;
52 // Blocking call. Waits for tasks and timers, invokes the callbacks.
53 void run(WorkerGlobalScope*);
55 enum WaitMode { WaitForMessage, DontWaitForMessage };
57 // Waits for a single task and returns.
58 MessageQueueWaitResult runInMode(WorkerGlobalScope*, const String& mode, WaitMode = WaitForMessage);
61 bool terminated() const { return m_messageQueue.killed(); }
63 // Returns true if the loop is still alive, false if it has been terminated.
64 bool postTask(PassOwnPtr<ExecutionContextTask>);
65 bool postTask(const Closure&);
67 void postTaskAndTerminate(PassOwnPtr<ExecutionContextTask>);
69 // Returns true if the loop is still alive, false if it has been terminated.
70 bool postTaskForMode(PassOwnPtr<ExecutionContextTask>, const String& mode);
71 bool postTaskForMode(const Closure&, const String& mode);
73 unsigned long createUniqueId() { return ++m_uniqueId; }
75 static String defaultMode();
80 friend class RunLoopSetup;
81 MessageQueueWaitResult runInMode(WorkerGlobalScope*, const ModePredicate&, WaitMode);
83 // Runs any clean up tasks that are currently in the queue and returns.
84 // This should only be called when the context is closed or loop has been terminated.
85 void runCleanupTasks(WorkerGlobalScope*);
87 MessageQueue<Task> m_messageQueue;
88 OwnPtr<WorkerSharedTimer> m_sharedTimer;
90 unsigned long m_uniqueId;
93 } // namespace WebCore
95 #endif // WorkerRunLoop_h