Multi-Threaded Application
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Hi All, I am working on a multi-threaded appln.In that I want to create an array of worker threads (like CWinThread *multthreads[maxsize]), which manipulates on some data until i ask them to stop(Using waitForSingle/MultipleObject) PEACEFULLY(not terminating). Say if i may want to stop the thread @ the 5th position. I am awaiting for your comments Thanx in advance SUjan
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Hi All, I am working on a multi-threaded appln.In that I want to create an array of worker threads (like CWinThread *multthreads[maxsize]), which manipulates on some data until i ask them to stop(Using waitForSingle/MultipleObject) PEACEFULLY(not terminating). Say if i may want to stop the thread @ the 5th position. I am awaiting for your comments Thanx in advance SUjan
I suggest you look at and use http://www.codeproject.com/threads/threadlibrary.asp[^] Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.com
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I suggest you look at and use http://www.codeproject.com/threads/threadlibrary.asp[^] Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.com
Hi Franks, Thanx 4 the link. I'll look into it.
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I suggest you look at and use http://www.codeproject.com/threads/threadlibrary.asp[^] Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.com
Hi Franks, I tried a dialog based program 4 multithreading. Here i am adding the sourcing which i have created. #define MAX_CONNECTIONS 5 #include static CWinThread *multthreads[MAX_CONNECTIONS]; static CEvent m_eventShutdown[MAX_CONNECTIONS]; static HANDLE hShutDown[MAX_CONNECTIONS]; static int shutdownWait[MAX_CONNECTIONS]; static int ShutThreadIndex; int tableCount = 0; //OnInitDialog for (int count=0;countm_bAutoDelete = FALSE; multthreads[0]->ResumeThread(); hShutDown[1] = multthreads[0]->m_hThread; } //To Shutdown the thread i am using void CMultiTestingDlg::ShutdownThread(int i) { ShutThreadIndex = i; shutdownWait[ShutThreadIndex] = INFINITE; m_eventShutdown[ShutThreadIndex].SetEvent(); TRACE1("\nShutdown Index %d\n",i); } The problem i am facing is, when i give shutdownthread, sometimes it is closing the correct thread, sometimes it is not closing the correct thread. PLEASE HELP ME. AM I GOING ON THE RIGHT DIRECTION. SORRY FOR TROUBLING YOU MUCH. THANX IN ADVANCE Sujan
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Hi Franks, I tried a dialog based program 4 multithreading. Here i am adding the sourcing which i have created. #define MAX_CONNECTIONS 5 #include static CWinThread *multthreads[MAX_CONNECTIONS]; static CEvent m_eventShutdown[MAX_CONNECTIONS]; static HANDLE hShutDown[MAX_CONNECTIONS]; static int shutdownWait[MAX_CONNECTIONS]; static int ShutThreadIndex; int tableCount = 0; //OnInitDialog for (int count=0;countm_bAutoDelete = FALSE; multthreads[0]->ResumeThread(); hShutDown[1] = multthreads[0]->m_hThread; } //To Shutdown the thread i am using void CMultiTestingDlg::ShutdownThread(int i) { ShutThreadIndex = i; shutdownWait[ShutThreadIndex] = INFINITE; m_eventShutdown[ShutThreadIndex].SetEvent(); TRACE1("\nShutdown Index %d\n",i); } The problem i am facing is, when i give shutdownthread, sometimes it is closing the correct thread, sometimes it is not closing the correct thread. PLEASE HELP ME. AM I GOING ON THE RIGHT DIRECTION. SORRY FOR TROUBLING YOU MUCH. THANX IN ADVANCE Sujan
All thread functions DataAccessThreading() are accessing the same global data and they don't know which instance of the thread they are. So the first thread to check eventShutdown[ShutThreadIndex] which see it and behave as requested. I would wrap:
static CWinThread *multthreads[MAX_CONNECTIONS]; static CEvent m_eventShutdown[MAX_CONNECTIONS]; static HANDLE hShutDown[MAX_CONNECTIONS]; static int shutdownWait[MAX_CONNECTIONS]; static int ShutThreadIndex;in a class and create an array of these. The pass the array instance address into the DataAccessThreading() function. Each thread knows which intance it is and only needs to check its specific eventShutdown. Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.com -
Hi All, I am working on a multi-threaded appln.In that I want to create an array of worker threads (like CWinThread *multthreads[maxsize]), which manipulates on some data until i ask them to stop(Using waitForSingle/MultipleObject) PEACEFULLY(not terminating). Say if i may want to stop the thread @ the 5th position. I am awaiting for your comments Thanx in advance SUjan
Hello, I started a multithreaded application a few weeks ago and I find this[^] class extremely usefull. Your code would look like this:
CThread threads[maxsize]; // some code threads[4].Stop(); // Function Kill also applies... // more codeHope this helps.. Multiply it by infinity and take it beyond eternity and you'll still have no idea about what I'm talking about. -
Hi All, I am working on a multi-threaded appln.In that I want to create an array of worker threads (like CWinThread *multthreads[maxsize]), which manipulates on some data until i ask them to stop(Using waitForSingle/MultipleObject) PEACEFULLY(not terminating). Say if i may want to stop the thread @ the 5th position. I am awaiting for your comments Thanx in advance SUjan
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All thread functions DataAccessThreading() are accessing the same global data and they don't know which instance of the thread they are. So the first thread to check eventShutdown[ShutThreadIndex] which see it and behave as requested. I would wrap:
static CWinThread *multthreads[MAX_CONNECTIONS]; static CEvent m_eventShutdown[MAX_CONNECTIONS]; static HANDLE hShutDown[MAX_CONNECTIONS]; static int shutdownWait[MAX_CONNECTIONS]; static int ShutThreadIndex;in a class and create an array of these. The pass the array instance address into the DataAccessThreading() function. Each thread knows which intance it is and only needs to check its specific eventShutdown. Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.comDear Franks, THANX A LOT. I was literally struggling with this. I'll try as per your suggestion. Incase of need i'll trouble(SORRY 4 that) again. Moreover i was having a doubt that whether i am going in the right direction.So your reply helps me a lot. THANX A LOT Yours Sujan
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Hello, I started a multithreaded application a few weeks ago and I find this[^] class extremely usefull. Your code would look like this:
CThread threads[maxsize]; // some code threads[4].Stop(); // Function Kill also applies... // more codeHope this helps.. Multiply it by infinity and take it beyond eternity and you'll still have no idea about what I'm talking about.Hi Bob, Just now only i saw your reply. Thanx, i'll go through the article. Sujan
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All thread functions DataAccessThreading() are accessing the same global data and they don't know which instance of the thread they are. So the first thread to check eventShutdown[ShutThreadIndex] which see it and behave as requested. I would wrap:
static CWinThread *multthreads[MAX_CONNECTIONS]; static CEvent m_eventShutdown[MAX_CONNECTIONS]; static HANDLE hShutDown[MAX_CONNECTIONS]; static int shutdownWait[MAX_CONNECTIONS]; static int ShutThreadIndex;in a class and create an array of these. The pass the array instance address into the DataAccessThreading() function. Each thread knows which intance it is and only needs to check its specific eventShutdown. Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.comDear Franks, I tried by creating a class and used it as you have said, still getting the same problem. Do you have any sample code, which does this. If you do have, will you please post it. I am in deep trouble. SORRY FOR DISTURBING YOU AGAIN. if the code is too large you can send it to my mail id also AWAITING YOUR REPLY Yours Sujan