Multithreading Multi-Threaded Programming

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WaitForSingleObject in worker thread } Worker thread must monitor the events and respond when a event is signaled } Waits until the specified object is in the signaled state or the time-out interval elapses. This function suspends the thread until the specified object becomes signaled. } When the thread is suspended, it’s not using any CPU cycles, which is good. ::WaitForSingleObject( g_eventStart, // the event handle or a CEvent object INFINITE); // the time-out interval. INFINITE means the function will //wait forever until the event becomes signaled ::WaitForSingleObject(g_eventKill, 0); //If you set the time-out to 0, WaitForSingleObject will return immediately, //with a return value of WAIT_OBJECT_0 if the event was signaled. 28 Advanced Windows Network <strong>Programming</strong> 11/11/12
WaitForSingleObject function } Waits until the specified object is in the signaled state or the time-out interval elapses. DWORD WINAPI WaitForSingleObject( _In_ HANDLE hHandle, //A handle to the object. _In_ DWORD dwMilliseconds ); //The time-out interval, in milliseconds. } Return value } WAIT_ABANDONED: The specified object is a mutex object that was not released by the thread that owned the mutex object before the owning thread terminated. } WAIT_OBJECT_0: The state of the specified object is signaled. } WAIT_TIMEOUT: The time-out interval elapsed, and the object's state is nonsignaled. } WAIT_FAILED: The function has failed. To get extended error information, call GetLastError. 29 Advanced Windows Network <strong>Programming</strong> 11/11/12
Page 1 and 2: Multithreading Multi-Threaded Progr
Page 3 and 4: Outline } Windows Message Processin
Page 5 and 6: MSG structure } The system sends a
Page 7 and 8: #include #include LRESULT CALLBAC
Page 9 and 10: Yielding Control } What would happe
Page 11 and 12: Writing the Worker Thread Function
Page 13 and 14: Starting the Thread } To start the
Page 15 and 16: The Running Threads } The AfxBeginT
Page 17 and 18: How the Main Thread Talks to a Work
Page 19 and 20: How does the worker thread get the
Page 21 and 22: What kind Msg in the PostMessage do
Page 23 and 24: Tips for Parameters of (WPARAM wPar
Page 25 and 26: Using Events for Thread Synchroniza
Page 27: Win32 Event HANDLE } CreateEvent fu
Page 31 and 32: WaitForMultipleObjects function } W
Page 33 and 34: Example main thread } Start the thr
Page 35 and 36: Timer in worker thread //the while
Page 37 and 38: Synchronization Classes } The multi
Page 39 and 40: When to Use Which? } Synchronizatio
Page 41 and 42: How to determine which is suitable?
Page 43 and 44: Example of using CCriticalSection }
Page 45 and 46: Example of using CMutex } Mutex is
Page 47 and 48: Example of using CSemaphore - 1 } C
Page 49 and 50: Win32 Semaphore Synchronization Obj
Page 51 and 52: Example of Threads Pool - Thread da
Page 53 and 54: Example of Threads Pool - Stop all
Page 55 and 56: Example of Threads Pool -Thread fun
Page 57 and 58: References } Chapter 11,Windows Mes
Page 59 and 60: 59 Advanced Windows Network Program
Page 61: Classes not derived from CObject 61

Multithreading Multi-Threaded Programming

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