Multithreading Multi-Threaded Programming

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PostMessage inside the thread function UINT ComputeThreadProc(LPVOID pparams) { WaitForSingleObject (pparams-> hTerminateEvent, INFINITE) ; lTime = timeGetTime() ; PostMessage (pparams->hwnd, WM_COMPLETE, 0, lTime); } 22 Advanced Windows Network <strong>Programming</strong> 11/11/12
Tips for Parameters of (WPARAM wParam, LPARAM lParam) } Send/PostMessage with a pointer: not safe //Handle to a global memory block,handled by main process char *Buffer=new char[100]; strcpy(Buffer, aString, strlen(aString)); ::SendMessage((pparams->m_hWnd, WM_COMPLETE, (WPARAM) 0, (LPARAM)Buffer); } Send/PostMessage with a Handle //Handle to a global memory block,handled by main process HGLOBAL hShareBuff = GlobalAlloc (GMEM_MOVEABLE, BufferSize); BYTE *Buffer = (BYTE*) GlobalLock (hShareBuff); memcpy(Buffer,RXBuff, BufferSize); ::SendMessage((pparams->m_hWnd, WM_COMPLETE, (WPARAM) BufferSize, (LPARAM) hShareBuff); 23 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: What kind Msg in the PostMessage do
Page 25 and 26: Using Events for Thread Synchroniza
Page 27 and 28: Win32 Event HANDLE } CreateEvent fu
Page 29 and 30: WaitForSingleObject function } Wait
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

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