. NET parallel computing and concurrency 6-gets the maximum number of threads available for the thread pool

1 usingSystem;2 usingSystem.IO;3 usingSystem.Security.Permissions;4 usingSystem.Threading;5 6 classTest7{8     Static voidMain ()9{TenAutoResetEvent mainevent =NewAutoResetEvent (false); One         intWorkerThreads; A         intPortthreads; -  -Threadpool.getmaxthreads ( outWorkerThreads, outPortthreads); theConsole.WriteLine ("\nmaximum worker threads: \t{0}" + -"\nmaximum Completion Port threads: {1}", -WorkerThreads, portthreads); -  +Threadpool.getavailablethreads ( outWorkerThreads, -              outPortthreads); +Console.WriteLine ("\navailable worker threads: \t{0}" + A"\navailable Completion Port threads: {1}\n", atWorkerThreads, portthreads); -  -ThreadPool.QueueUserWorkItem (New -WaitCallback (Threadpooltest.workitemmethod), mainevent); -  -         //Since ThreadPool threads is background threads, in         //wait for the work item to signal before ending Main. -Mainevent.waitone (5000,false); toConsole.ReadLine (); +} -} the  * classThreadpooltest ${Panax Notoginseng     //maintains state information to is passed to Endwritecallback. -     //This information allows the callback to the end of the asynchronous the     //write operation and signal when it is finished. +     classState A{ the          PublicFileStream FStream; +          PublicAutoResetEvent autoevent; -  $          PublicState (FileStream fstream, AutoResetEvent autoevent) ${ -              This. fstream = FStream; -              This. autoevent = autoevent; the} -}Wuyi  theThreadpooltest () {} -  Wu      Public Static voidWorkitemmethod (ObjectMainevent) -{ AboutConsole.WriteLine ("\nstarting workitem.\n"); $AutoResetEvent autoevent =NewAutoResetEvent (false); -  -         //Create some data. -         Const intArraySize = 10000; A         Const intBufferSize = 10000; +         byte[] ByteArray =NewByte[arraysize]; the         NewRandom (). Nextbytes (ByteArray); -  $         //Create The files and the state objects. theFileStream FileWriter1 = the             NewFileStream (@ "C:\[email Protected]##.dat", FileMode.Create, theFileAccess.ReadWrite, Fileshare.readwrite, theBufferSize,true); -FileStream FileWriter2 = in             NewFileStream (@ "C:\[email Protected]##.dat", FileMode.Create, theFileAccess.ReadWrite, Fileshare.readwrite, theBufferSize,true); Aboutstate StateInfo1 =NewState (FileWriter1, autoevent); thestate StateInfo2 =NewState (FileWriter2, autoevent); the  the         //Asynchronously write to the files. +Filewriter1.beginwrite (ByteArray, 0, Bytearray.length, -             NewAsyncCallback (Endwritecallback), stateInfo1); theFilewriter2.beginwrite (ByteArray, 0, Bytearray.length,Bayi             NewAsyncCallback (Endwritecallback), StateInfo2); the  the         //Wait for the callbacks to signal. -Autoevent.waitone (); -Autoevent.waitone (); the  theFilewriter1.close (); theFilewriter2.close (); theConsole.WriteLine ("\nending workitem.\n"); -  the         //Signal Main , the work item is finished. the((AutoResetEvent) mainevent). Set (); the}94  the     Static voidEndwritecallback (IAsyncResult AsyncResult) the{ theConsole.WriteLine ("starting Endwritecallback.");98  Aboutstate StateInfo = (state) asyncresult.asyncstate; -         intWorkerThreads;101         intPortthreads;102         Try103{104Threadpool.getavailablethreads ( outWorkerThreads, the                  outPortthreads);106Console.WriteLine ("\navailable worker threads: \t{0}" +107"\navailable Completion Port threads: {1}\n",108WorkerThreads, portthreads);109  theStateInfo.fStream.EndWrite (AsyncResult);111  the             //Sleep so the other thread have a chance to run113             //Before the current thread ends. the             //thread.sleep (); the} the         finally117{118             //Signal The current thread is finished.119StateInfo.autoEvent.Set (); -Console.WriteLine ("ending Endwritecallback.");121}122}123}124 

. NET parallel computing and concurrency 6-gets the maximum number of threads available for the thread pool