Multithreading Multi-Threaded Programming

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WaitForMultipleObjects in worker thread HANDLE hEventArray[3]; … DWORD Event = 0; // If the 3rd parameter is TRUE, the function returns when the state of all objects in the lpHandles array is signaled. If FALSE, the function returns when the state of any one of the objects is set to signaled. In the latter case, the return value indicates the object whose state caused the function to return. Event = WaitForMultipleObjects(3, hEventArray, FALSE, INFINITE); switch (Event) { case WAIT_OBJECT_0 : … case WAIT_OBJECT_0 + 1: … case WAIT_OBJECT_0 + 2: … } 30 Advanced Windows Network Programming 11/11/12
WaitForMultipleObjects function } Waits until one or all of the specified objects are in the signaled state or the time-out interval elapses. DWORD WINAPI WaitForMultipleObjects( _In_ DWORD nCount, //The number of object handles in the array pointed to by lpHandles. _In_ const HANDLE *lpHandles, //An array of object handles. _In_ BOOL bWaitAll, //If TRUE, the function returns when the state of all objects in //the lpHandles array is signaled. _In_ DWORD dwMilliseconds ); //The time-out interval, in milliseconds. } Return value } WAIT_OBJECT_0 to (WAIT_OBJECT_0 + nCount– 1): If bWaitAll is FALSE, the return value minus WAIT_OBJECT_0 indicates the lpHandles array index of the object that satisfied the wait. } WAIT_ABANDONED_0 to (WAIT_ABANDONED_0 + nCount– 1): the return value indicates that the state of the specified objects is signaled and is an abandoned mutex object. } WAIT_TIMEOUT: The time-out interval elapsed and the conditions specified by the bWaitAll parameter are not satisfied. } WAIT_FAILED: The function has failed. To get extended error information, call GetLastError. 31 Advanced Windows Network Programming 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 and 28: Win32 Event HANDLE } CreateEvent fu
Page 29: WaitForSingleObject function } Wait
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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