C# Threading.SmartThreadPool类代码示例

		public void WaitForIdleOnSTPThreadForAnotherWorkItemsGroup()
		{ 
			SmartThreadPool smartThreadPool = new SmartThreadPool(10*1000, 25, 0);
			IWorkItemsGroup workItemsGroup1 = smartThreadPool.CreateWorkItemsGroup(int.MaxValue);
			IWorkItemsGroup workItemsGroup2 = smartThreadPool.CreateWorkItemsGroup(int.MaxValue);

			workItemsGroup1.QueueWorkItem(
				new WorkItemCallback(this.DoSomeWork), 
				1000);

			workItemsGroup1.QueueWorkItem(
				new WorkItemCallback(this.DoSomeWork), 
				1000);

			IWorkItemResult wir = workItemsGroup2.QueueWorkItem(
				new WorkItemCallback(this.DoWaitForIdle), 
				workItemsGroup1);

			Exception e;
			wir.GetResult(out e);

			smartThreadPool.Shutdown();

			Assert.IsNull(e);
		} 

        public void WaitAllT()
        {
            SmartThreadPool smartThreadPool = new SmartThreadPool();

            bool success = true;

            IWorkItemResult<int>[] wirs = new IWorkItemResult<int>[5];

            for (int i = 0; i < wirs.Length; ++i)
            {
                wirs[i] = smartThreadPool.QueueWorkItem(new Func<int, int, int>(System.Math.Min), i, i + 1);
            }

            SmartThreadPool.WaitAll(wirs);

            for (int i = 0; i < wirs.Length; ++i)
            {
                if (!wirs[i].IsCompleted)
                {
                    success = false;
                    break;
                }

                int result = wirs[i].GetResult();
                if (i != result)
                {
                    success = false;
                    break;
                }
            }

            smartThreadPool.Shutdown();

            Assert.IsTrue(success);
        }

        public void CancelCanceledWorkItem()
        {
            STPStartInfo stpStartInfo = new STPStartInfo();
            stpStartInfo.StartSuspended = true;

            SmartThreadPool stp = new SmartThreadPool(stpStartInfo);
            IWorkItemResult wir = stp.QueueWorkItem(state => null);

            int counter = 0;

            wir.Cancel();

            try
            {
                wir.GetResult();
            }
            catch (WorkItemCancelException ce)
            {
                ce.GetHashCode();
                ++counter;
            }

            Assert.AreEqual(counter, 1);

            wir.Cancel();

            try
            {
                wir.GetResult();
            }
            finally
            {
                stp.Shutdown();
            }
        }

        public void test()
        {
            SmartThreadPool smartThreadPool = new SmartThreadPool();

            Curl.GlobalInit((int)CURLinitFlag.CURL_GLOBAL_ALL);
            GlobalVar.isCrawling = true;
            //string conn = string.Format(@"Data Source="+System.Environment.CurrentDirectory+"\\data\\{0}", GlobalVar.filename);
            sqlitehelper con = new sqlitehelper(System.Environment.CurrentDirectory + @"\data\" + GlobalVar.filename);
            string sql = "select keyword from Content where flag==0";
            DataTable dt = new DataTable();
            dt = con.GetDataTable(sql);
            IWorkItemResult[] wir = new IWorkItemResult[dt.Rows.Count];
            MessageBox.Show(dt.Rows.Count.ToString());
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                //MessageBox.Show(dt.Rows[i]["keyword"].ToString());
                OneWorker one = new OneWorker(dt.Rows[i]["keyword"].ToString());
                ThreadPool.QueueUserWorkItem(one.work, i);

            }

            bool success = SmartThreadPool.WaitAll(
                   wir);

            if (success)
            {
                GlobalVar.isCrawling = false;

            }
            smartThreadPool.Shutdown();
        }

		public void WaitAny() 
		{ 
			SmartThreadPool smartThreadPool = new SmartThreadPool();
			IWorkItemsGroup workItemsGroup = smartThreadPool.CreateWorkItemsGroup(int.MaxValue);

			bool success = false;

			IWorkItemResult [] wirs = new IWorkItemResult[5];

			for(int i = 0; i < wirs.Length; ++i)
			{
				wirs[i] = 
					workItemsGroup.QueueWorkItem(new WorkItemCallback(this.DoSomeWork), null);
			}

			int index = SmartThreadPool.WaitAny(wirs);

			if (wirs[index].IsCompleted)
			{
				int result = (int)wirs[index].GetResult();
				if (1 == result)
				{
					success = true;
				}
			}

			smartThreadPool.Shutdown();

			Assert.IsTrue(success);
		} 

        public void TestConcurrencyChange()
        {
            SmartThreadPool smartThreadPool = new SmartThreadPool(10 * 1000, 1, 0);

            bool success = false;

            for (int i = 0; i < 100; ++i)
            {
                smartThreadPool.QueueWorkItem(
                    new WorkItemCallback(this.DoSomeWork),
                    null);
            }

            smartThreadPool.Concurrency = 1;
            success = WaitForMaxThreadsValue(smartThreadPool, 1, 1 * 1000);
            Assert.IsTrue(success);

            smartThreadPool.Concurrency = 5;
            success = WaitForMaxThreadsValue(smartThreadPool, 5, 2 * 1000);
            Assert.IsTrue(success);

            smartThreadPool.Concurrency = 25;
            success = WaitForMaxThreadsValue(smartThreadPool, 25, 4 * 1000);
            Assert.IsTrue(success);

            smartThreadPool.Concurrency = 10;
            success = WaitForMaxThreadsValue(smartThreadPool, 10, 10 * 1000);
            Assert.IsTrue(success);

            smartThreadPool.Shutdown();
        }

        public void WorkItemWaitCanceling()
        {
            Assert.Throws<WorkItemTimeoutException>(() =>
            {
                SmartThreadPool smartThreadPool = new SmartThreadPool();

                ManualResetEvent cancelWaitHandle = new ManualResetEvent(false);

                // Queue a work item that will occupy the thread in the pool
                IWorkItemResult wir1 =
                    smartThreadPool.QueueWorkItem(new WorkItemCallback(this.DoSomeWork), null);

                // Queue another work item that will wait for the first to complete
                IWorkItemResult wir2 =
                    smartThreadPool.QueueWorkItem(new WorkItemCallback(this.SignalCancel), cancelWaitHandle);

                try
                {
                    wir1.GetResult(System.Threading.Timeout.Infinite, true, cancelWaitHandle);
                }
                finally
                {
                    smartThreadPool.Shutdown();
                }
            });
        }

        public static void getImagesAsync(List<FilmData> tempFilmList)
        {
            if (isNetworkAvailable())
            {

                SmartThreadPool smartThreadPool = new SmartThreadPool(
                                                                        15 * 1000,   // Idle timeout in milliseconds
                                                                        25,         // Threads upper limit
                                                                        1);         // Threads lower limit
                var bw = new System.ComponentModel.BackgroundWorker();
                bw.DoWork += (s, args) =>
                {
                    foreach (FilmData item in tempFilmList)
                    {
                        if (IsolatedStorageHelper.isFileAlreadySaved(item.imageUrl))
                            ImageHelper.addDownloadedItemsToFilmCollection(item.imageUrl);
                        else
                            smartThreadPool.QueueWorkItem(() => getImageFromUrl(item.imageUrl));
                    }

                    smartThreadPool.WaitForIdle(); // Wait for the completion of all work items
                };
                bw.RunWorkerAsync();
            }
        }

        public void STPAndWIGStartSuspended()
        {
            STPStartInfo stpStartInfo = new STPStartInfo();
            stpStartInfo.StartSuspended = true;

            SmartThreadPool stp = new SmartThreadPool(stpStartInfo);

            WIGStartInfo wigStartInfo = new WIGStartInfo();
            wigStartInfo.StartSuspended = true;

            IWorkItemsGroup wig = stp.CreateWorkItemsGroup(10, wigStartInfo);

            wig.QueueWorkItem(new WorkItemCallback(this.DoWork));

            Assert.IsFalse(wig.WaitForIdle(200));

            wig.Start();

            Assert.IsFalse(wig.WaitForIdle(200));

            stp.Start();

            Assert.IsTrue(wig.WaitForIdle(5000), "WIG is not idle");
            Assert.IsTrue(stp.WaitForIdle(5000), "STP is not idle");
        }

		public void WorkItemWaitCanceling() 
		{ 
			SmartThreadPool smartThreadPool = new SmartThreadPool();
			IWorkItemsGroup workItemsGroup = smartThreadPool.CreateWorkItemsGroup(int.MaxValue);

			ManualResetEvent cancelWaitHandle = new ManualResetEvent(false);

			bool success = false;

			// Queue a work item that will occupy the thread in the pool
			IWorkItemResult wir1 = 
				workItemsGroup.QueueWorkItem(new WorkItemCallback(this.DoSomeWork), null);

			// Queue another work item that will wait for the first to complete
			IWorkItemResult wir2 = 
				workItemsGroup.QueueWorkItem(new WorkItemCallback(this.SignalCancel), cancelWaitHandle);

			try
			{
				wir1.GetResult(System.Threading.Timeout.Infinite, true, cancelWaitHandle);
			}
			catch (WorkItemTimeoutException) 
			{
				success = true;
			}

			smartThreadPool.Shutdown();

			Assert.IsTrue(success);
		} 

        private void btnStart_Click(object sender, RoutedEventArgs e)
        {
            if (_running)
            {
                _wakeupEvent.Set();
                _stp.Cancel();
                _stp.Shutdown(false, 5000);
                _stp = null;
                btnStart.Content = "Start";
                //txtIdleTimeout.Enabled = true;
                _running = false;
            }
            else
            {
                usageHistoryControl1.Reset();
                usageControl1.Value1 = 0;
                usageControl1.Value2 = 0;
                _wakeupEvent.Set();
                _running = true;
                btnStart.Content = "Stop";
                //txtIdleTimeout.Enabled = false;
                STPStartInfo stpStartInfo = new STPStartInfo()
                {
                    MinWorkerThreads = Convert.ToInt32(txtMinThreads.Text),
                    MaxWorkerThreads = Convert.ToInt32(txtMaxThreads.Text),
                    IdleTimeout = Convert.ToInt32(txtIdleTimeout.Text) * 1000,
                    EnableLocalPerformanceCounters = true,
                };

                _stp = new SmartThreadPool(stpStartInfo);
            }
        }

        public void TwoWIGsStartSuspended()
        {
            SmartThreadPool stp = new SmartThreadPool();

            WIGStartInfo wigStartInfo = new WIGStartInfo();
            wigStartInfo.StartSuspended = true;

            IWorkItemsGroup wig1 = stp.CreateWorkItemsGroup(10, wigStartInfo);
            IWorkItemsGroup wig2 = stp.CreateWorkItemsGroup(10, wigStartInfo);

            wig1.QueueWorkItem(new WorkItemCallback(this.DoWork));
            wig2.QueueWorkItem(new WorkItemCallback(this.DoWork));

            Assert.IsFalse(wig1.WaitForIdle(200));
            Assert.IsFalse(wig2.WaitForIdle(200));

            wig1.Start();

            Assert.IsTrue(wig1.WaitForIdle(200));
            Assert.IsFalse(wig2.WaitForIdle(200));

            wig2.Start();

            Assert.IsTrue(wig1.WaitForIdle(0));
            Assert.IsTrue(wig2.WaitForIdle(200));
        }

        private static int calculateLabel(Individual[] weights)
        {
            Individual[] reversedWeights = { weights[1], weights[0] };
            weights[1].ResetScores();
            weights[0].ResetScores();
            SmartThreadPool smtp = new SmartThreadPool();
            for (int index = 0; index < numberOfGames; index++)
            {

                if (index % 2 == 1)
                {
                    smtp.QueueWorkItem(new WorkItemCallback(threadProc), weights);
                }
                else
                {
                    smtp.QueueWorkItem(new WorkItemCallback(threadProc), reversedWeights);
                }

            }
            smtp.WaitForIdle();
            smtp.Shutdown();
            //double strengthRatio = ((double)weights[0].Wins + (double)weights[0].Draws / 2) / numberOfGames;
            //return strengthRatio > 0.5 ? 1 : -1;
            return weights[0].Wins + 1/2 * weights[0].Draws;
        }

        public void TestWIGConcurrencyChange()
        {
            SmartThreadPool smartThreadPool = new SmartThreadPool(10 * 1000, 25, 0);

            IWorkItemsGroup wig = smartThreadPool.CreateWorkItemsGroup(smartThreadPool.MaxThreads);
            bool success = false;

            for (int i = 0; i < 100; ++i)
            {
                wig.QueueWorkItem(new WorkItemCallback(this.DoSomeLongWork), null);
            }

            wig.Concurrency = 1;
            success = WaitForWIGThreadsInUse(wig, 1, 1 * 1000);
            Assert.IsTrue(success);

            wig.Concurrency = 5;
            success = WaitForWIGThreadsInUse(wig, 5, 2 * 1000);
            Assert.IsTrue(success);

            wig.Concurrency = 25;
            success = WaitForWIGThreadsInUse(wig, 25, 4 * 1000);
            Assert.IsTrue(success);

            wig.Concurrency = 10;
            success = WaitForWIGThreadsInUse(wig, 10, 10 * 1000);
            Assert.IsTrue(success);

            smartThreadPool.Shutdown();
        }

        public void ExceptionThrowing()
        {
            SmartThreadPool _smartThreadPool = new SmartThreadPool();

            DivArgs divArgs = new DivArgs();
            divArgs.x = 10;
            divArgs.y = 0;

            IWorkItemResult wir =
                _smartThreadPool.QueueWorkItem(new WorkItemCallback(this.DoDiv), divArgs);

            try
            {
                wir.GetResult();
            }
            catch(WorkItemResultException wire)
            {
                Assert.IsTrue(wire.InnerException is DivideByZeroException);
                return;
            }
            catch(Exception e)
            {
                e.GetHashCode();
                Assert.Fail();
            }
            Assert.Fail();
        }