static void Main(string[] args)
{
// create the first generation task
Task firstGen = new Task(() => {
Console.WriteLine("Message from first generation task");
// comment out this line to stop the fault
throw new Exception();
});
// create the second generation task - only to run on exception
Task secondGen1 = firstGen.ContinueWith(antecedent => {
// write out a message with the antecedent exception
Console.WriteLine("Antecedent task faulted with type: {0}",
antecedent.Exception.GetType());
}, TaskContinuationOptions.OnlyOnFaulted);
// create the second generation task - only to run on no exception
Task secondGen2 = firstGen.ContinueWith(antecedent => {
Console.WriteLine("Antecedent task NOT faulted");
}, TaskContinuationOptions.NotOnFaulted);
// start the first generation task
firstGen.Start();
// wait for input before exiting
Console.WriteLine("Press enter to finish");
Console.ReadLine();
}
/// <summary>
/// Initializes a new instance of the <see cref="RedisCache"/> class.
/// </summary>
/// <param name="configuration">The configuration.</param>
public RedisCache(ConfigurationOptions configuration)
{
if (RedisCache.connection == null)
{
try
{
connectionTask = ConnectionMultiplexer.ConnectAsync(configuration);
connectionTask.ContinueWith(t =>
{
lock (syncronizationObject)
{
if (RedisCache.connection == null)
RedisCache.connection = t.Result;
}
this.cache = RedisCache.connection.GetDatabase();
Trace.TraceInformation("Redis Cache Provider connection complete - Correlation Id = {0}", Trace.CorrelationManager.ActivityId);
});
}
catch (AggregateException age)
{
age.Handle(e =>
{
Trace.TraceError("Redis Cache Provider error - Correlation Id = {0}\n {1}\n {2}", Trace.CorrelationManager.ActivityId, e.Message, e.StackTrace);
return true;
});
}
catch (Exception ex)
{
Trace.TraceError("Redis Cache Provider exception - Correlation Id = {0}\n {1}\n {2}", Trace.CorrelationManager.ActivityId, ex.Message, ex.StackTrace);
}
}
}
private static void Main(string[] args)
{
var task = new Task(() =>
{
Console.WriteLine("Task 1 rolls out");
throw new Exception();
});
task.ContinueWith(
task1 => Console.WriteLine("Task {0} nevermind of state, task result is {1}", task1.Id, task1.Status),
TaskContinuationOptions.None);
task.ContinueWith(
task1 => Console.WriteLine("Task {0} failed, task result is {1}", task1.Id, task1.Status),
TaskContinuationOptions.OnlyOnFaulted);
task.ContinueWith(
task1 => Console.WriteLine("Task {0} failed executing continuation syncchronously, task result is {1}", task1.Id, task1.Status),
TaskContinuationOptions.ExecuteSynchronously);
task.ContinueWith(
task1 => Console.WriteLine("Task {0} runned outside the pool, task result is {1}", task1.Id, task1.Status),
TaskContinuationOptions.OnlyOnCanceled);
task.Start();
Console.ReadLine();
}
private void SetupSigninTaskContinuations(Task<LogOnInfo> signinTask,
TaskCompletionSource<UserViewModel> taskCompletionSource)
{
signinTask.ContinueWith(completedTask => CompleteSignin(completedTask.Result, taskCompletionSource),
TaskContinuationOptions.OnlyOnRanToCompletion);
signinTask.ContinueWith(failedTask => HandleSigninException(failedTask.Exception, taskCompletionSource),
TaskContinuationOptions.OnlyOnFaulted);
taskCompletionSource.Task.ContinueWith(
completedSignin => OnSigninComplete(completedSignin.Result, _logOnInfo.Rooms.Any()),
TaskContinuationOptions.OnlyOnRanToCompletion);
}
private void RunThreadFixApiAsync(Task apiTask, Action success)
{
var context = SynchronizationContext.Current;
apiTask.ContinueWith(result =>
{
context.Post(o => { success.Invoke(); }, null);
}, TaskContinuationOptions.NotOnFaulted);
apiTask.ContinueWith(error =>
{
ToggleMenuCommands(true);
ShowErrorMessage(error.Exception.InnerException.Message);
}, TaskContinuationOptions.OnlyOnFaulted);
}
public Task ProcessMessageAsync(string room, Message message)
{
var task = new Task<ChatMessageViewModel>(() =>
{
ChatMessageViewModel msgVm = CreateMessageViewModel(message);
return msgVm;
});
task.ContinueWith(completedTask => OnMessageProcessed(completedTask.Result, room),
TaskContinuationOptions.OnlyOnRanToCompletion);
task.ContinueWith(ProcessTaskExceptions, TaskContinuationOptions.OnlyOnFaulted);
task.Start();
return task;
}
protected override void OnResume()
{
base.OnResume();
System.Threading.Tasks.Task startWork = new System.Threading.Tasks.Task(() =>
{
System.Threading.Tasks.Task.Delay(3000);
});
startWork.ContinueWith(t =>
{
var auth = FirebaseAuth.Instance;
if (auth.CurrentUser != null)
{
Intent intent = new Intent(Application.Context, typeof(HomeActivity));
StartActivity(intent);
OverridePendingTransition(Resource.Animation.Side_in_right, Resource.Animation.Side_out_left);
//Toast.MakeText(this, "toast", ToastLength.Long).Show();
Finish();
}
else
{
Intent intent = new Intent(Application.Context, typeof(LoginSignupActivity));
StartActivity(intent);
OverridePendingTransition(Resource.Animation.Side_in_right, Resource.Animation.Side_out_left);
Finish();
}
},
TaskScheduler.FromCurrentSynchronizationContext());
startWork.Start();
}
public AsyncResult(AsyncCallback callback, object state, Task task)
{
_state = state;
_task = task;
_completedSynchronously = _task.IsCompleted;
_task.ContinueWith(t => callback(this), TaskContinuationOptions.ExecuteSynchronously);
}
public void Track(Task task, string inprogressText)
{
pictureBox.Image = Resources.spin;
label.Text = inprogressText;
label.ForeColor = DefaultForeColor;
toolTip.RemoveAll();
task
.ContinueWith(t => {
if (t.IsCanceled)
{
label.Text = "Cancelled";
label.ForeColor = Color.Peru;
pictureBox.Image = Resources.Ok;
}
else if (t.IsFaulted)
{
pictureBox.Image = Resources.Error;
label.Text = "ERROR";
label.ForeColor = Color.Red;
toolTip.SetToolTip(pictureBox, t.Exception.InnerException.Message);
toolTip.SetToolTip(label, t.Exception.InnerException.ToString());
}
else
{
pictureBox.Image = Resources.Ok;
label.Text = _rantoCompletionText;
}
}, TaskScheduler.FromCurrentSynchronizationContext())
;
}
public static void LaunchThread()
{
Task<Int32[]> parent = new Task<int[]>(() =>
{
var results = new Int32[3];
// Use this factory configuration...
TaskFactory tf = new TaskFactory(TaskCreationOptions.AttachedToParent, TaskContinuationOptions.ExecuteSynchronously);
// ... to create tasks
tf.StartNew(() => results[0] = 4);
tf.StartNew(() => results[1] = 5);
tf.StartNew(() => results[2] = 6);
return results;
});
parent.Start();
var finalTask = parent.ContinueWith(
parentTask =>
{
foreach (int i in parentTask.Result)
Console.WriteLine(i);
});
// Wait the task parent finished (and the child tasks finished)
finalTask.Wait();
// Result :
// 4
// 5
// 6
Console.ReadKey();
}
public static void Main()
{
bool parentTaskFaulted = false;
Task task = new Task(() =>
{
throw new InvalidOperationException();
});
Task continuationTask = task.ContinueWith(
(antecedentTask) =>
{
parentTaskFaulted =
antecedentTask.IsFaulted;
}, TaskContinuationOptions.OnlyOnFaulted);
task.Start();
continuationTask.Wait();
Trace.Assert(parentTaskFaulted);
if(!task.IsFaulted)
{
task.Wait();
}
else
{
task.Exception.Handle(eachException =>
{
Console.WriteLine(
"ERROR: {0}",
eachException.Message);
return true;
});
}
}
internal static void MakeMsgToRequestDataCalc(int sensorid, string filePath, DateTime acqTime)
{
var msg = new RequestDataCalcMessage
{
Id = Guid.NewGuid(),
SensorID = sensorid,
DateTime = acqTime,
FilePath = filePath,
RoundNum = string.Empty
};
System.Threading.Tasks.Task task = new System.Threading.Tasks.Task(
() =>
{
WarningThread.GetWarningThread().SendWarningProcessMessage(msg);
});
task.Start();
task.ContinueWith(
t =>
{
if (t.Exception != null)
{
Log.Error("发送振动计算请求失败:" + t.Exception.Message, t.Exception);
}
else
{
Log.Info("发送振动计算请求成功");
}
});
}
internal static void LogAndForget(this Task task, string source) =>
task.ContinueWith(
(t, s) => VsShellUtilities.LogError(s as string, t.Exception?.ToString()),
source,
CancellationToken.None,
TaskContinuationOptions.OnlyOnFaulted,
TaskScheduler.Default);
internal static void LogAndForget(this Task task, string source) =>
task.ContinueWith(
(t, s) => VsShellUtilities.LogError(s as string, t.Exception.ToString()),
source,
CancellationToken.None,
TaskContinuationOptions.OnlyOnFaulted,
VsTaskLibraryHelper.GetTaskScheduler(VsTaskRunContext.UIThreadNormalPriority));
public GeoViewModel(MetroTwitStatusBase Tweet)
{
this.ShowAnimation = true;
this.LinkCommand = new RelayCommand<string>(new Action<string>(CommonCommands.OpenLink));
Coordinate coordinate = Tweet.Coordinates != null ? Tweet.Coordinates.Coordinate[0] : Tweet.Geo.BoundingBox.Coordinates[0];
if (coordinate != null)
{
Task task = new Task((Action) (() => this.GeoLookup(coordinate)));
task.ContinueWith((Action<Task>) (t => CommonCommands.CheckTaskExceptions(t)));
task.Start();
object resource = Application.Current.FindResource((object) "ModernColorFeature");
string PinColour = resource == null ? "blue" : "0x" + resource.ToString().Remove(0, 3);
this.GeoImageURI = CoreServices.Instance.CurrentMapService.StaticMapURL(coordinate.Latitude, coordinate.Longitude, 320, 320, PinColour);
GeoViewModel geoViewModel = this;
double num = coordinate.Latitude;
string str1 = num.ToString((IFormatProvider) CultureInfo.InvariantCulture.NumberFormat);
string str2 = ", ";
num = coordinate.Longitude;
string str3 = num.ToString((IFormatProvider) CultureInfo.InvariantCulture.NumberFormat);
string str4 = str1 + str2 + str3;
geoViewModel.GeoPlaceText = str4;
this.LiveMapURL = CoreServices.Instance.CurrentMapService.LiveMapURL(coordinate.Latitude, coordinate.Longitude);
}
this.ShowAnimation = false;
}
void SaveSettings()
{
SetError();
if (MaxChatHistory.Value == null) MaxChatHistory.Value = 100;
var dataDirectory = TextBoxDataDirectory.Text;
var installOnBoot = CheckBoxInstallOnBoot.IsChecked ?? false;
var useLightChat = CheckBoxLightChat.IsChecked ?? false;
var useHardwareRendering = CheckBoxUseHardwareRendering.IsChecked ?? false;
var useTransparentWindows = CheckBoxUseWindowTransparency.IsChecked ?? false;
var maxChatHistory = MaxChatHistory.Value ?? 100;
var enableChatImages = CheckBoxEnableChatImages.IsChecked ?? false;
var enableChatGifs = CheckBoxEnableChatGifs.IsChecked ?? false;
var task = new Task(
() =>
this.SaveSettingsTask(
ref dataDirectory,
installOnBoot,
useLightChat,
useHardwareRendering,
useTransparentWindows,
maxChatHistory,
enableChatImages,
enableChatGifs));
task.ContinueWith((t) =>
{
Dispatcher
.Invoke(new Action(
() => this.SaveSettingsComplete(t)));
});
task.Start();
}
/// <summary> 开启新线程 </summary>
public void NewTaskStart(decimal time, Int64 userid)
{
try
{
if (Variable.PrisonTask.ContainsKey(userid))
{
return;
}
Variable.PrisonTask.TryAdd(userid, true);
var token = new CancellationTokenSource();
var task = new System.Threading.Tasks.Task(() => SpinWait.SpinUntil(() => false, (int)time), token.Token);
task.Start();
task.ContinueWith(m =>
{
if (Variable.PrisonTask.ContainsKey(userid))
{
var a = true;
Variable.PrisonTask.TryRemove(userid, out a);
PrisonOut(userid);
}
token.Cancel();
}, token.Token);
}
catch (Exception ex)
{
XTrace.WriteException(ex);
}
}
static void Main(string[] args)
{
// create a first generation task
Task gen1 = new Task(() => {
// write out a message
Console.WriteLine("First generation task");
});
// create a second generation task
Task gen2 = gen1.ContinueWith(antecedent => {
// write out a message
Console.WriteLine("Second generation task - throws exception");
throw new Exception();
});
// create a third generation task
Task gen3 = gen2.ContinueWith(antecedent => {
// write out a message
Console.WriteLine("Third generation task");
});
// start the first gen task
gen1.Start();
// wait for the last task in the chain to complete
gen3.Wait();
// wait for input before exiting
Console.WriteLine("Press enter to finish");
Console.ReadLine();
}
static GlobalVar()
{
DATA_PATH = Application.persistentDataPath;
//DATA_PATH = DATA_PATH.Substring(0, DATA_PATH.Length - 5); // for Androj
//DATA_PATH = DATA_PATH.Substring(0, DATA_PATH.LastIndexOf("/")); // for Androj
DATA_PATH += "/Data";
DB_PATH = Application.persistentDataPath + "/db";
if (!Directory.Exists(DB_PATH))
{
Directory.CreateDirectory(DB_PATH);
}
GameObject g = new GameObject("ShareContext");
shareContext = g.AddComponent <ShareContext>();
shareContext.initLoadingIndicator();
#if !UNITY_WEBGL && !UNITY_STANDALONE
System.Collections.Generic.Dictionary <string, object> defaults =
new System.Collections.Generic.Dictionary <string, object>();
defaults.Add("BASE_ASSET_DOWNLOAD_URL", "http://www.smallworld3d.com/unity3d/3dbook_test/");
Firebase.RemoteConfig.FirebaseRemoteConfig.SetDefaults(defaults);
BASE_ASSET_DOWNLOAD_URL = Firebase.RemoteConfig.FirebaseRemoteConfig.GetValue("BASE_ASSET_DOWNLOAD_URL").StringValue;
//DebugOnScreen.Log("RemoteConfig configured and ready with BASE_ASSET_DOWNLOAD_URL : " + BASE_ASSET_DOWNLOAD_URL);
//DebugOnScreen.Log("RemoteConfig Fetching data...");
System.Threading.Tasks.Task fetchTask = Firebase.RemoteConfig.FirebaseRemoteConfig.FetchAsync(
TimeSpan.Zero);
fetchTask.ContinueWith(FetchComplete);
#endif
}
public IDisposable Subscribe(IObserver <SearchedFile> observer)
{
LoggingService.Debug("Parallel FindAll starting");
var task = new System.Threading.Tasks.Task(
delegate {
var list = fileList.ToList();
ThrowIfCancellationRequested();
SearchParallel(list, observer);
}, TaskCreationOptions.LongRunning);
task.ContinueWith(
t => {
LoggingService.Debug("Parallel FindAll finished " + (t.IsFaulted ? "with error" : "successfully"));
if (t.Exception != null)
{
observer.OnError(t.Exception);
}
else
{
observer.OnCompleted();
}
this.Dispose();
});
task.Start();
return(this);
}
public static void LaunchThread()
{
Task<int[]> parent = new Task<int[]>(() =>
{
var results = new int[3];
new Task(() => results[0] = 1, TaskCreationOptions.AttachedToParent).Start();
new Task(() => results[1] = 2, TaskCreationOptions.AttachedToParent).Start();
new Task(() => results[2] = 3, TaskCreationOptions.AttachedToParent).Start();
return results;
});
parent.Start();
var finalTask = parent.ContinueWith(
parentTask =>
{
foreach (int i in parentTask.Result)
Console.WriteLine(i);
}
);
// Wait the task parent finished (and the child tasks finished)
finalTask.Wait();
// Result :
// 1
// 2
// 3
Console.ReadKey();
}
/// <summary>
///
/// </summary>
/// <param name="task"></param>
/// <param name="callback"></param>
/// <param name="state"></param>
/// <returns></returns>
public static IAsyncResult ToBegin(Task task, AsyncCallback callback, object state)
{
if (task == null)
throw new ArgumentNullException(nameof(task));
var tcs = new TaskCompletionSource<object>(state);
task.ContinueWith(t =>
{
if (task.IsFaulted)
{
if (task.Exception != null)
tcs.TrySetException(task.Exception.InnerExceptions);
}
else if (task.IsCanceled)
{
tcs.TrySetCanceled();
}
else
{
tcs.TrySetResult(null);
//tcs.TrySetResult(RpcAction.GetTaskResult(t));
}
callback?.Invoke(tcs.Task);
}/*, TaskScheduler.Default*/);
return tcs.Task;
}
protected override Task Send(IList<Message> messages)
{
if (messages == null || messages.Count == 0)
{
var emptyTask = new TaskCompletionSource<object>();
emptyTask.SetResult(null);
return emptyTask.Task;
}
if (_connection.State == ConnectionState.Disconnected)
{
startTask = _connection.Start();
startTask.ContinueWith(t =>
{
throw t.Exception.GetBaseException();
}, TaskContinuationOptions.OnlyOnFaulted);
}
if (!startTask.IsCompleted)
{
startTask.Wait();
}
return _connection.Send("s:"+messages.ToScaleoutString());
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.Main);
//create a new dialog
dialog = CustomProgressDialog.CreateDialog(this);
dialog.OnWindowFocusChanged(true);
Button btnGO = FindViewById<Button>(Resource.Id.go);
btnGO.Click += (s,e) =>
{
int result = 0;
//show the dialog
dialog.Show();
//do some things
Task task = new Task(() =>
{
for (int i = 0; i < 100; i++)
{
result += i;
}
});
task.ContinueWith(t =>
{
Intent intent = new Intent(this, typeof(LastActivity));
intent.PutExtra("name", result.ToString());
StartActivity(intent);
});
task.Start();
};
}
public static Task CreateAndExecuteTaskContinueWith(Action BodyMethod, Action ContinueMethod, TaskCreationOptions t_Options = TaskCreationOptions.None)
{
Task t_task = new Task(BodyMethod, t_Options);
t_task.ContinueWith(_ => ContinueMethod);
t_task.Start();
return t_task;
}
public static void Main()
{
bool parentTaskFaulted = false;
Task task = new Task(() =>
{
throw new ApplicationException();
});
Task faultedTask = task.ContinueWith(
(parentTask) =>
{
parentTaskFaulted = parentTask.IsFaulted;
}, TaskContinuationOptions.OnlyOnFaulted);
task.Start();
faultedTask.Wait();
Trace.Assert(parentTaskFaulted);
if (!task.IsFaulted)
{
task.Wait();
}
else
{
Console.WriteLine(
"ERROR: {0}", task.Exception.Message);
}
}
void MainForm_Shown(object sender, EventArgs e)
{
this.MainForm.Shown -= MainForm_Shown;
UpdateJumpList();
#if !DEBUG
if (SingleInstance.IsFirstInstance(Assembly.GetEntryAssembly().FullName))
{
_mgr = UpdateManager.GitHubUpdateManager("https://github.com/erdomke/InnovatorAdmin");
_mgr.ContinueWith(t =>
{
var listener = this.MainForm as IUpdateListener;
_updates = t.Result.UpdateApp(listener == null ? (Action<int>)null : listener.UpdateCheckProgress);
_updates.ContinueWith(r =>
{
if (r.IsFaulted)
{
Utils.HandleError(r.Exception);
}
else if (!r.IsCanceled && listener != null)
{
listener.UpdateCheckComplete(r.Result == default(ReleaseEntry) ? default(Version) : r.Result.Version.Version);
}
});
});
}
#endif
}
static void Main(string[] args)
{
Task<BankAccount> task = new Task<BankAccount>(() => {
// create a new bank account
BankAccount account = new BankAccount();
// enter a loop
for (int i = 0; i < 1000; i++) {
// increment the account total
account.Balance++;
}
// return the bank account
return account;
});
task.ContinueWith((Task<BankAccount> antecedent) => {
Console.WriteLine("Final Balance: {0}", antecedent.Result.Balance);
});
// start the task
task.Start();
// wait for input before exiting
Console.WriteLine("Press enter to finish");
Console.ReadLine();
}
public DThread(Action action)
{
_task = new System.Threading.Tasks.Task(action, System.Threading.Tasks.TaskCreationOptions.LongRunning);
_task.ContinueWith(_ => {
_finishedEvent.Set();
});
}
public void ParticipateUntil (Task task)
{
ManualResetEventSlim evt = new ManualResetEventSlim (false);
task.ContinueWith (_ => evt.Set (), TaskContinuationOptions.ExecuteSynchronously);
ParticipateUntil (evt, -1);
}
/// <summary>Transmits a packet.</summary>
public Task<ReadonlySessionVariables> Transmit(CsspIdentity packet)
{
lock (this)
{
PreProcessPacket(packet);
}
var t = new Task<ReadonlySessionVariables>(() =>
{
var session = CsGlobal.Transmission.Http.Secured.ClientSession(CsGlobal.Transmission.Http.CsServer.Rsa, CsGlobal.Transmission.Http.CsServer.Website);
session.Request.Data = GetJson_FromPacket(packet);
session.SendRequest();
return session.Response;
}, TaskCreationOptions.LongRunning);
var continuationTask = t.ContinueWith(t1 =>
{
lock (this)
{
LastPacketTransmitted = DateTime.Now;
PostProcessPacket(packet, t1.Exception == null);
}
return t1.Result;
}, TaskScheduler.Default);
t.Start(TaskScheduler.Default);
return continuationTask;
}
private void OnMikuniProtocol()
{
status = DialogManager.ShowStatus(this, Database.GetText("Communicating", "System"));
Manager.LiveDataVector = Database.GetLiveData("QingQi");
for (int i = 0; i < Manager.LiveDataVector.Count; i++)
{
if ((Manager.LiveDataVector[i].ShortName == "TS")
|| (Manager.LiveDataVector[i].ShortName == "ERF")
|| (Manager.LiveDataVector[i].ShortName == "IS"))
{
Manager.LiveDataVector[i].Enabled = false;
}
}
Core.LiveDataVector vec = Manager.LiveDataVector;
vec.DeployEnabledIndex();
vec.DeployShowedIndex();
task = Task.Factory.StartNew(() =>
{
if (!Manager.Commbox.Close() || !Manager.Commbox.Open())
{
throw new IOException(Database.GetText("Open Commbox Fail", "System"));
}
Diag.MikuniOptions options = new Diag.MikuniOptions();
options.Parity = Diag.MikuniParity.Even;
Mikuni protocol = new Mikuni(Manager.Commbox, options);
protocol.StaticDataStream(vec);
});
task.ContinueWith((t) =>
{
ShowResult(t);
});
}
/// <summary>父子任务
/// </summary>
public static void M1()
{
Task<string[]> parent = new Task<string[]>(state =>
{
Console.WriteLine(state);
string[] result = new string[2];
//创建并启动子任务
new Task(() =>
{
result[0] = "我是子任务1。";
}, TaskCreationOptions.AttachedToParent).Start();
new Task(() =>
{
result[1] = "我是子任务2。";
}, TaskCreationOptions.AttachedToParent).Start();
return result;
}, "我是父任务，并在我的处理过程中创建多个子任务，所有子任务完成以后我才会结束执行。");
//任务处理完成后执行的操作
parent.ContinueWith(t =>
{
Array.ForEach(t.Result, r => Console.WriteLine(r));
});
//启动父任务
parent.Start();
}
// http://mnairooz.blogspot.com/2010/07/implementing-asynchronous-callbacks.html
private void MainForm2_Load(object sender, EventArgs e)
{
var parent = new Task<int>(() =>
{
MessageBox.Show(@"In parent");
return 100;
});
Task<int> child = parent.ContinueWith( a =>
{
MessageBox.Show(@"In Child");
return 19 + a.Result;
}, TaskContinuationOptions.OnlyOnRanToCompletion);
parent.Start();
Task.Factory.StartNew(() =>
{
MessageBox.Show(@"In the lone parent...");
return "some";
}).ContinueWith(t =>
{
MessageBox.Show(@"In the lone child");
label2.Text = string.Format("{0} data", t.Result.ToString(CultureInfo.InvariantCulture));
}, TaskScheduler.FromCurrentSynchronizationContext());
// MessageBox.Show(child.Result.ToString());
label1.Text = child.Result.ToString(CultureInfo.InvariantCulture);
}
protected virtual void OnReload()
{
if (DisabledModIds == null || Reset)
{
DisabledModIds = new HashSet <string>();
Reset = false;
}
if (!PluginLoader.IsFirstLoadComplete)
{
return; // if the first load isn't complete, skip all of this
}
var referToState = unchecked (++updateState);
var copy = DisabledModIds.ToArray();
if (disableUpdateTask == null || disableUpdateTask.IsCompleted)
{
disableUpdateTask = UpdateDisabledMods(copy);
}
else
{
disableUpdateTask = disableUpdateTask.ContinueWith(t =>
{
// skip if another got here before the last finished
if (referToState != updateState)
{
return(TaskEx.WhenAll());
}
else
{
return(UpdateDisabledMods(copy));
}
});
}
}
public ConsultarCursosViewModel()
{
this.Periodos = new List<ConsultarPeriodosPeriodoDTO>();
var task = new Task(() =>
{
Status = "Consultando Períodos...";
var modelPeriodos = new ConsultarPeriodosModel();
var requestPeriodos = new ConsultarPeriodosRequest();
modelPeriodos.Execute(requestPeriodos);
if (modelPeriodos.Response.Status == ExecutionStatus.Success) this.Periodos = modelPeriodos.Response.Periodos;
else System.Windows.Forms.MessageBox.Show(string.Concat("Erro ao consultar professores:\n",modelPeriodos.ErrorMessage));
Periodos.Add(new ConsultarPeriodosPeriodoDTO() { Codigo = 0, Nome = "<Nenhum>" });
Status = "Consultando Cursos...";
var modelCursos = new ConsultarCursosModel();
var requestCursos = new ConsultarCursosRequest();
modelCursos.Execute(requestCursos);
if (modelCursos.Response.Status == ExecutionStatus.Success) this.Lista = modelCursos.Response.Cursos;
else System.Windows.Forms.MessageBox.Show(string.Concat("Erro ao consultar professores:\n",modelCursos.ErrorMessage));
});
task.ContinueWith(x =>
{
Status = "";
});
task.Start();
this.ActionCommand = new RelayCommand();
}
public static void Run()
{
//Task<int> t = Task.Run(() => TaskMethod() );
Task<int> t = new Task<int>(() => TaskMethod() );
t.Start();
/*
try {
// Even if continuation is added after the task
// finishes execution, the continuation executes correctly.
Console.WriteLine(t.Result);
}catch(AggregateException e)
{
Console.WriteLine("Accessing result first throws exception.");
}
*/
t.ContinueWith((task) => {
Console.WriteLine("OK");
}, TaskContinuationOptions.OnlyOnRanToCompletion);
Task contTask = t.ContinueWith((task) => {
Console.WriteLine("ERROR");
throw new Exception("Continuation says piss off too");
}, TaskContinuationOptions.OnlyOnFaulted);
try {
Console.WriteLine(t.Result);
}catch(AggregateException e)
{
Console.WriteLine("First task threw exception: " + e.InnerExceptions[0].Message);
}
try {
contTask.Wait();
}catch(AggregateException e)
{
Console.WriteLine("Continuation threw exception: " + e.InnerExceptions[0].Message);
}
}
private static void IgnoreTaskErrors(System.Threading.Tasks.Task task)
{
task.ContinueWith(t => {
var e = t.Exception;
var log = ServiceContainer.Resolve <ILogger> ();
log.Info(Tag, e, "Failed to send GCM info to server.");
}, TaskContinuationOptions.OnlyOnFaulted);
}
public static Task IgnoreCancellation(this Task task)
{
return(task.ContinueWith(
t => { },
CancellationToken.None,
TaskContinuationOptions.NotOnFaulted,
TaskScheduler.Default));
}
private void SessionReceived(long taskId, Session session /*, int budget*/)
{
//ThreadPerTaskScheduler
//System.Threading.Tasks.TaskFactory consumersFactory = new System.Threading.Tasks.TaskFactory(new System.Threading.Tasks.Schedulers.ThreadPerTaskScheduler());
if (chunkBuilderFeed.IsCompleted)
{
return;
}
System.Threading.Tasks.Task consumeTask = System.Threading.Tasks.Task.Factory.StartNew(() => {
//Task consumeTask = consumersFactory.StartNew(() =>{
Consume(session);
}, TaskCreationOptions.LongRunning);
consumeTask.ContinueWith(o => AfterTask(consumeTask, session), TaskContinuationOptions.OnlyOnRanToCompletion
| TaskContinuationOptions.NotOnFaulted | TaskContinuationOptions.NotOnCanceled);
consumeTask.ContinueWith(o => UnexpectedError(consumeTask), TaskContinuationOptions.OnlyOnFaulted);
//consumeTask.Dispose();
}
/// <summary>
/// 投げっぱなしにする場合は、これを呼ぶことでコンパイラの警告の抑制と、例外発生時のロギングを行います。
/// </summary>
public static void FireAndForget(this System.Threading.Tasks.Task task)
{
task.ContinueWith(x =>
{
Debug.Write(x.Exception);
//logger.ErrorException("TaskUnhandled", x.Exception);
}, TaskContinuationOptions.OnlyOnFaulted);
}
public FormWaiting(Task<Object> task)
{
WaitingForTask = task;
WaitingForTask.ContinueWith(SafeClose);
InitializeComponent();
timer.Tick += timer_Tick;
lblWaiting.Tag = 0;
}
private void Start()
{
// start the task that is doing the work
currentWorkCycle = Work();
// chain a continuation that checks for more work, on the same scheduler
currentWorkCycle.ContinueWith(t => this.CheckForMoreWork(), TaskScheduler.Current);
}
public void Run()
{
Task taskData = new Task(GetData);
taskData.Start();
// Producer
Task taskProducer = taskData.ContinueWith(Producer);
}
public static void DontWait(this System.Threading.Tasks.Task task)
{
task.ContinueWith(t => { if (t.Exception != null)
{
throw t.Exception;
}
},
TaskContinuationOptions.OnlyOnFaulted);
}
private void RunBackup(Backup b)
{
this.Status = NodeStatus.Backuping;
if (currentJobs.Count > 0)
{
// Refuse to process 2 simultaneous tasks on win XP since it can only handle 1 VSS snap at any given time.
if (Utilities.PlatForm.Instance().OS == "NT5.1")
{
HubWrite(new NodeMessage {
Context = MessageContext.Task, TaskId = b.Id, Data = "800"
});
Logger.Append(Severity.WARNING, "A task is already running on Win-XP node, refusing to process other.");
return;
}
foreach (BackupManager runningJob in currentJobs.Values)
{
if (runningJob.Backup.BackupSet.Id == b.BackupSetId)
{
HubWrite(new NodeMessage {
Context = MessageContext.Task, TaskId = runningJob.Backup.Id, Data = "800"
});
Logger.Append(Severity.WARNING, "Taskset #" + runningJob.Backup.BackupSetId + " (task id #" + runningJob.Backup.Id + ") " + runningJob.Backup.ToString() + " is already running, refusing to process it twice...");
return;
}
}
}
//backupsList.Add(b);
Logger.Append(Severity.INFO, "Starting task +" + b.Id + ", operation Backup, type " + b.Level.ToString() + ".");
b.HubNotificationEvent += this.HubSendTaskEvent;
try{
System.Threading.Tasks.Task prepareTask = new System.Threading.Tasks.Task(
() => {
b.PrepareAll();
BackupManager bManager = new BackupManager(b);
currentJobs.Add(b.Id, bManager);
bManager.StorageNeeded += AskStorage;
bManager.BackupDoneEvent += this.BackupDone;
bManager.Run();
}, System.Threading.Tasks.TaskCreationOptions.LongRunning);
prepareTask.Start(TaskScheduler.Default);
// handle exceptions...
prepareTask.ContinueWith(
o => { UnexpectedError(prepareTask, b.Id); },
System.Threading.Tasks.TaskContinuationOptions.OnlyOnFaulted
);
}
catch (Exception e) {
Logger.Append(Severity.ERROR, "<--> Interrupting task " + b.Id + " after unexpected error : " + e.ToString());
HubWrite("TSK " + b.Id + " 899 " + e.Message);
BackupDone(b);
}
}
/// <summary>
/// Executes the specified action on a background thread, showing a wait dialog if it is available
/// </summary>
/// <param name="actionName">[Required] description of the action to show in the wait dialog</param>
/// <param name="action">[Required] action to run</param>
/// <param name="throwOnCancel">If specified, an OperationCanceledException is thrown if the operation is canceled</param>
/// <returns>True if the operation succeed and wasn't canceled</returns>
/// <exception cref="OperationCanceledException">Wait was canceled and 'throwOnCancel' is true</exception>
public static bool Wait(string actionName, bool throwOnCancel, Action action)
{
Task t = Task.Run(action);
DebugEngineHost.HostWaitLoop waiterImpl = null;
try
{
waiterImpl = new DebugEngineHost.HostWaitLoop(actionName);
}
catch (FileNotFoundException)
{
// Visual Studio is not installed on this box
}
if (waiterImpl != null)
{
using (ManualResetEvent completeEvent = new ManualResetEvent(false))
{
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
t.ContinueWith((System.Threading.Tasks.Task unused) => completeEvent.Set(), TaskContinuationOptions.ExecuteSynchronously);
try
{
waiterImpl.Wait(completeEvent, cancellationTokenSource);
}
catch (OperationCanceledException) // VS Wait dialog implementation always throws on cancel
{
if (throwOnCancel)
{
throw;
}
return(false);
}
if (cancellationTokenSource.IsCancellationRequested)
{
if (throwOnCancel)
{
throw new OperationCanceledException();
}
return(false);
}
if (t.IsFaulted)
{
throw t.Exception.InnerException;
}
}
}
return(true);
}
private void SendIndex(long taskId, Session s /*, int budget*/)
{
System.Threading.Tasks.Task consumeIndexTask = System.Threading.Tasks.Task.Factory.StartNew(() => {
DataPipeline pipeline = new DataPipeline(PipelineMode.Write, DataProcessingFlags.CCompress | DataProcessingFlags.CChecksum);
//pipeline.Init();
ChunkProcessor cp = new ChunkProcessor(s, pipeline, backup);
cp.Process(indexChunk, backup.MaxChunkSize * 10);
indexChunk.Size = pipeline.Stream.Length;
indexChunk.AddDestination(s.ClientId);
}, TaskCreationOptions.LongRunning);
consumeIndexTask.ContinueWith(o => {
Logger.Append(Severity.INFO, "Processed and sent backup index");
backup.AddHubNotificationEvent(705, Math.Round((double)indexChunk.Size / 1024 / 1024, 1).ToString(), "");
string synthIndexSum = indexChunk.Sum; // for Fulls
if (backup.Bs.ScheduleTimes[0].Level != P2PBackup.Common.BackupLevel.Full)
{
IndexManager idxManager = new IndexManager();
Logger.Append(Severity.INFO, "Building synthetic full index...");
idxManager.CreateSyntheticFullIndex(backup.RefTaskId, taskId, backup.RootDrives);
backup.AddHubNotificationEvent(707, "", "");
synthIndexSum = IndexManager.CheckSumIndex(taskId, false); // for synthetic backups
}
User.SendDoneBackup(taskId, backup.OriginalSize, backup.FinalSize, backup.TotalItems, indexChunk.Name, indexChunk.Sum, synthIndexSum, indexChunk.StorageDestinations, 100);
Logger.Append(Severity.INFO, "Task " + taskId + " has finished. " + backup.TotalItems + " items, " + backup.TotalChunks + " chunks. Original data size=" + Math.Round((double)backup.OriginalSize / 1024 / 1024, 1) + "MB, final=" + Math.Round((double)backup.FinalSize / 1024 / 1024, 1) + "MB");
string statsByKind = "Task " + taskId + " processed: ";
for (int i = 0; i < 10; i++)
{
statsByKind += backup.ItemsByType[i] + " " + ((FileType)i).ToString() + ", ";
}
Logger.Append(Severity.INFO, statsByKind);
#if DEBUG
Logger.Append(Severity.INFO, "DataProcessorStreams statistics : checksum=" + BenchmarkStats.Instance().ChecksumTime
+ "ms, dedup=" + BenchmarkStats.Instance().DedupTime
+ "ms, compress=" + BenchmarkStats.Instance().CompressTime
+ "ms, send=" + BenchmarkStats.Instance().SendTime + "ms.");
Logger.Append(Severity.INFO, "Dedup statistics : lookups=" + BenchmarkStats.Instance().DedupLookups
+ ", hotfound=" + BenchmarkStats.Instance().DedupHotFound
+ ", coldfound=" + BenchmarkStats.Instance().DedupColdFound
+ ", add=" + BenchmarkStats.Instance().DedupAdd + ".");
#endif
User.StorageSessionReceivedEvent -= new User.StorageSessionReceivedHandler(this.SendIndex);
//Console.WriteLine("IndexSessionReceived() : backup typre="+backup. .BackupTimes[0].Type);
backup.AddHubNotificationEvent(706, "", "");
backup.Terminate(true);
BackupDoneEvent(taskId);
}, TaskContinuationOptions.OnlyOnRanToCompletion | TaskContinuationOptions.ExecuteSynchronously
| TaskContinuationOptions.NotOnFaulted | TaskContinuationOptions.NotOnCanceled);
//consumeTask.Dispose();
}
/// <summary>
/// Silently handles the specified exception.
/// </summary>
public static Task SilenceException <T>(this Task task) where T : Exception
{
return(task.ContinueWith(t => {
try {
t.Wait();
} catch (AggregateException ex) {
ex.Handle(e => e is T);
}
}));
}
private void btnTaskContinuationsRun_Click(object sender, EventArgs e)
{//任务调度也是常见的需求，Task支持一个任务结束之后执行另一个任务。
System.Threading.Tasks.Task task1 = System.Threading.Tasks.Task.Factory.StartNew(() => Console.Write("antecedant.."));
System.Threading.Tasks.Task task2 = task1.ContinueWith(task => Console.Write("..continuation"));
//Task也有带返回值的重载，示例代码如下：
System.Threading.Tasks.Task.Factory.StartNew <int>(() => 8)
.ContinueWith(ant => ant.Result * 2)
.ContinueWith(ant => Math.Sqrt(ant.Result))
.ContinueWith(ant => Console.WriteLine(ant.Result)); // output 4
}
/// <summary>
/// Silently handles the specified exception.
/// </summary>
public static Task <U> SilenceException <T, U>(this Task <U> task) where T : Exception
{
return(task.ContinueWith(t => {
try {
return t.Result;
} catch (AggregateException ex) {
ex.Handle(e => e is T);
return default(U);
}
}));
}
// Start a fetch request.
public void FetchData()
{
DebugLog("Fetching data...");
// FetchAsync only fetches new data if the current data is older than the provided
// timespan. Otherwise it assumes the data is "recent enough", and does nothing.
// By default the timespan is 12 hours, and for production apps, this is a good
// number. For this example though, it's set to a timespan of zero, so that
// changes in the console will always show up immediately.
System.Threading.Tasks.Task fetchTask = Firebase.RemoteConfig.FirebaseRemoteConfig.FetchAsync(
TimeSpan.Zero);
fetchTask.ContinueWith(FetchComplete);
}
internal void SessionReceived(Session session /*, int budget*/)
{
if (chunksFeeds.IsCompleted)
{
return; // TODO : verify that in this case, session is closed.
}
/*if(chunksFeeds.IsCompleted){
* SendIndex(session);
* }*/
else
{
System.Threading.Tasks.Task consumeTask = System.Threading.Tasks.Task.Factory.StartNew(() => {
Consume(session);
} /*, null, TaskCreationOptions.LongRunning, TaskScheduler.Default*/);
consumeTask.ContinueWith(o => AfterTask(consumeTask, session), TaskContinuationOptions.OnlyOnRanToCompletion
| TaskContinuationOptions.NotOnFaulted | TaskContinuationOptions.NotOnCanceled);
consumeTask.ContinueWith(o => UnexpectedError(consumeTask), TaskContinuationOptions.OnlyOnFaulted);
consumeTask.ContinueWith(o => Cancel(), TaskContinuationOptions.OnlyOnCanceled);
consumers.Add(consumeTask);
}
}
internal void SendIndex(Session s)
{
// Terminate and free Dedup DB before saving it to ensure all its content has been flushed to disk
dedupIndex.Dispose();
System.Threading.Tasks.Task consumeIndexTask = System.Threading.Tasks.Task.Factory.StartNew(() => {
DataPipeline pipeline = new DataPipeline(PipelineMode.Write, DataProcessingFlags.CCompress | DataProcessingFlags.CChecksum);
ChunkProcessor cp = new ChunkProcessor(s, pipeline, backup, new CancellationToken());
cp.Process(indexChunk, backup.BackupSet.MaxChunkSize * 10);
indexChunk.Size = pipeline.Stream.Length;
indexChunk.AddDestination(s.ToNode.Id);
}, TaskCreationOptions.LongRunning);
consumeIndexTask.ContinueWith(o => {
Logger.Append(Severity.INFO, "Processed and sent backup index");
backup.AddHubNotificationEvent(705, Math.Round((double)indexChunk.Size / 1024 / 1024, 1).ToString(), "");
// set final info : index location
backup.IndexStorageNodes = indexChunk.StorageDestinations;
Logger.Append(Severity.INFO, "Task " + s.TaskId + " has finished. " + backup.TotalItems + " items, " + backup.TotalChunks + " chunks. Original data size=" + Math.Round((double)backup.OriginalSize / 1024 / 1024, 1) + "MB, final=" + Math.Round((double)backup.FinalSize / 1024 / 1024, 1) + "MB");
string statsByKind = "Task " + s.TaskId + " processed: ";
for (int i = 0; i < 10; i++)
{
statsByKind += backup.ItemsByType[i] + " " + ((FileType)i).ToString() + ", ";
}
Logger.Append(Severity.INFO, statsByKind);
#if DEBUG
Logger.Append(Severity.INFO, "DataProcessorStreams statistics : checksum=" + BenchmarkStats.Instance().ChecksumTime
+ "ms, dedup=" + BenchmarkStats.Instance().DedupTime
+ "ms, compress=" + BenchmarkStats.Instance().CompressTime
+ "ms, send=" + BenchmarkStats.Instance().SendTime + "ms.");
Logger.Append(Severity.INFO, "Dedup statistics : lookups=" + BenchmarkStats.Instance().DedupLookups
+ ", hotfound=" + BenchmarkStats.Instance().DedupHotFound
+ ", coldfound=" + BenchmarkStats.Instance().DedupColdFound
+ ", add=" + BenchmarkStats.Instance().DedupAdd + ".");
#endif
//User.SessionReady -= new User.StorageSessionReceivedHandler(this.SendIndex);
backup.AddHubNotificationEvent(706, "", "");
backup.Terminate(true);
BackupDoneEvent(backup);
}, TaskContinuationOptions.OnlyOnRanToCompletion
| TaskContinuationOptions.ExecuteSynchronously
| TaskContinuationOptions.NotOnFaulted
| TaskContinuationOptions.NotOnCanceled
);
//consumeTask.Dispose();
}
protected Task ParseMedicationsAsync(Task <Bundle> result)
{
return(result.ContinueWith(bund =>
{
Task.Run(() => //This is not necessary for such a small dataset but if this was very large it could help because this is a CPU bound process Task.Run is appropriate.
{
MedsToChannel(bund.GetAwaiter().GetResult().Entry
.Select(e => e.Resource as Bundle)
.SelectMany(b => b.Entry
.Select(e => e.Resource))
.ToList());
});
}));
}
private void StartUpdateStateMachine()
{
// cancel previous state machine update request
_cancellationTokenSource.Cancel();
_cancellationTokenSource = new CancellationTokenSource();
var cancellationToken = _cancellationTokenSource.Token;
// make sure all state machine change work is serialized so that cancellation
// doesn't mess the state up.
_lastTask = _lastTask.ContinueWith(async _ =>
{
await UpdateStateMachineWorkerAsync(cancellationToken).ConfigureAwait(false);
}, cancellationToken, TaskContinuationOptions.LazyCancellation, TaskScheduler.Default).Unwrap();
}
Task FetchDataAsync()
{
if (!mInited || mIsLoading || mLastLoadTime + 12 * 60 * 60 > AFramework.Utility.GetCurrentTimeSecond())
{
return(null);
}
mIsLoading = true;
System.Threading.Tasks.Task fetchTask = Firebase.RemoteConfig.FirebaseRemoteConfig.FetchAsync(
#if DEVELOPMENT_BUILD
System.TimeSpan.Zero
#endif
);
return(fetchTask.ContinueWith(FetchComplete));
}
/// <summary>
/// ReferencesGraphProvider supports tracking changes.
/// ProjectContextChanged gets fired everytime dependencies change. TrackChangesAsync updates
/// ExpandedGraphContexts as necessary to reflect changes.
/// </summary>
private void ProjectContextProvider_ProjectContextChanged(object sender, ProjectContextEventArgs e)
{
lock (_changedContextsQueueLock)
{
_changedContextsQueue[e.Context.ProjectFilePath] = e;
// schedule new track changes request in the queue
if (_trackChangesTask == null || _trackChangesTask.IsCompleted)
{
_trackChangesTask = RunTrackChangesAsync();
}
else
{
_trackChangesTask = _trackChangesTask.ContinueWith(t => RunTrackChangesAsync(), TaskScheduler.Default);
}
}
}
private void Export_Click(object sender, RoutedEventArgs e)
{
//State = State.Busy;
//wait.Message = "Пожалуйста, подождите..\nПодготовка отчёта...";
var task = new System.Threading.Tasks.Task(() =>
{
var reportFileName = System.IO.Path.Combine(System.IO.Path.GetTempPath(), _balance.Substation.Name + ".xlsx");
int index = 0;
while (System.IO.File.Exists(reportFileName) == true)
{
try
{
System.IO.File.Delete(reportFileName);
}
catch (System.IO.IOException)
{
reportFileName = System.IO.Path.Combine(System.IO.Path.GetTempPath(), _balance.Substation.Name + " " + ++index + ".xlsx");
}
}
using (var sbe = new Export.SubstationExport(_balance))
sbe.Export(reportFileName);
System.Diagnostics.Process.Start(reportFileName);
//State = State.Idle;
//DispatcherExtensions.InUi(() => wait.Message = "Пожалуйста, подождите..\nПодготовка данных.");
}, System.Threading.Tasks.TaskCreationOptions.AttachedToParent);
task.ContinueWith((s) =>
{
var sb = new System.Text.StringBuilder();
Exception ex = s.Exception.Flatten();
while (ex != null)
{
if (ex.InnerException != null)
{
sb.AppendLine(ex.InnerException.Message);
ex = ex.InnerException;
}
}
EmcosSiteWrapperApp.LogError("Экспорт балансов подстанций - ошибка: " + sb.ToString());
DispatcherExtensions.InUi(() => EmcosSiteWrapperApp.ShowError("Произошла ошибка при формировании отчёта.\nОбратитесь к разработчику."));
}, System.Threading.Tasks.TaskContinuationOptions.OnlyOnFaulted);
task.Start(System.Threading.Tasks.TaskScheduler.Current);
}
public static void DisconnectClient(Client client, string reason)
{
if (client.WebSocket.IsAvailable)
{
string msg = "{\"identifier\":\"" + "error" +
"\",\"param\":\"" + reason + "\"}\n";
System.Threading.Tasks.Task t = client.WebSocket.Send(msg);
t.ContinueWith((prevTask) => {
prevTask.Wait();
RemoveClient(client.WebSocket.ConnectionInfo.Id);
});
}
else
{
RemoveClient(client.WebSocket.ConnectionInfo.Id);
}
}
