Task.WaitAny Método

public:
 static int WaitAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, int millisecondsTimeout, System::Threading::CancellationToken cancellationToken);

public static int WaitAny(System.Threading.Tasks.Task[] tasks, int millisecondsTimeout, System.Threading.CancellationToken cancellationToken);

static member WaitAny : System.Threading.Tasks.Task[] * int * System.Threading.CancellationToken -> int

Public Shared Function WaitAny (tasks As Task(), millisecondsTimeout As Integer, cancellationToken As CancellationToken) As Integer

Parámetros

Devoluciones

Índice de la tarea completada en el argumento de matriz tasks o -1 si se produjo el tiempo de espera.

Excepciones

public:
 static int WaitAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, TimeSpan timeout);

public static int WaitAny(System.Threading.Tasks.Task[] tasks, TimeSpan timeout);

static member WaitAny : System.Threading.Tasks.Task[] * TimeSpan -> int

Public Shared Function WaitAny (tasks As Task(), timeout As TimeSpan) As Integer

Parámetros

Devoluciones

Índice de la tarea completada en el argumento de matriz tasks o -1 si se produjo el tiempo de espera.

Excepciones

public:
 static int WaitAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, int millisecondsTimeout);

public static int WaitAny(System.Threading.Tasks.Task[] tasks, int millisecondsTimeout);

static member WaitAny : System.Threading.Tasks.Task[] * int -> int

Public Shared Function WaitAny (tasks As Task(), millisecondsTimeout As Integer) As Integer

Parámetros

Devoluciones

Índice de la tarea completada en el argumento de matriz tasks o -1 si se produjo el tiempo de espera.

Excepciones

public:
 static int WaitAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, System::Threading::CancellationToken cancellationToken);

public static int WaitAny(System.Threading.Tasks.Task[] tasks, System.Threading.CancellationToken cancellationToken);

static member WaitAny : System.Threading.Tasks.Task[] * System.Threading.CancellationToken -> int

Public Shared Function WaitAny (tasks As Task(), cancellationToken As CancellationToken) As Integer

Parámetros

Devoluciones

Índice de la tarea completada en el argumento de matriz tasks .

Excepciones

public:
 static int WaitAny(... cli::array <System::Threading::Tasks::Task ^> ^ tasks);

public static int WaitAny(params System.Threading.Tasks.Task[] tasks);

static member WaitAny : System.Threading.Tasks.Task[] -> int

Public Shared Function WaitAny (ParamArray tasks As Task()) As Integer

Parámetros

Devoluciones

Índice del objeto completado Task en la tasks matriz.

Excepciones

Ejemplos

En el ejemplo siguiente se inician cinco tareas, cada una de las cuales se suspende durante un mínimo de 50 milisegundos o un máximo de 1050 milisegundos. A continuación, el WaitAny método espera a que se complete cualquiera de las tareas. En el ejemplo se muestra el identificador de tarea de la tarea que finalizó la espera, así como el estado actual de todas las tareas.

using System;
using System.Threading;
using System.Threading.Tasks;

public class Example
{
   public static void Main()
   {
      Task[] tasks = new Task[5];
      for (int ctr = 0; ctr <= 4; ctr++) {
         int factor = ctr;
         tasks[ctr] = Task.Run(() => Thread.Sleep(factor * 250 + 50));
      }
      int index = Task.WaitAny(tasks);
      Console.WriteLine("Wait ended because task #{0} completed.",
                        tasks[index].Id);
      Console.WriteLine("\nCurrent Status of Tasks:");
      foreach (var t in tasks)
         Console.WriteLine("   Task {0}: {1}", t.Id, t.Status);
   }
}
// The example displays output like the following:
//       Wait ended because task #1 completed.
//
//       Current Status of Tasks:
//          Task 1: RanToCompletion
//          Task 2: Running
//          Task 3: Running
//          Task 4: Running
//          Task 5: Running

open System.Threading
open System.Threading.Tasks

let tasks =
    [| for factor = 0 to 4 do
           Task.Run(fun () -> Thread.Sleep(factor * 250 + 50)) |]

let index = Task.WaitAny tasks
printfn $"Wait ended because task #{tasks[index].Id} completed."
printfn "\nCurrent Status of Tasks:"

for t in tasks do
    printfn $"   Task {t.Id}: {t.Status}"


// The example displays output like the following:
//       Wait ended because task #1 completed.
//
//       Current Status of Tasks:
//          Task 1: RanToCompletion
//          Task 2: Running
//          Task 3: Running
//          Task 4: Running
//          Task 5: Running

Imports System.Threading
Imports System.Threading.Tasks

Module Example
   Public Sub Main()
      Dim tasks(4) As Task
      For ctr As Integer = 0 To 4
         Dim factor As Integer = ctr
         tasks(ctr) = Task.Run(Sub() Thread.Sleep(factor * 250 + 50))
      Next
      Dim index As Integer = Task.WaitAny(tasks)

      Console.WriteLine("Wait ended because task #{0} completed.",
                        tasks(index).Id)
      Console.WriteLine()
      Console.WriteLine("Current Status of Tasks:")
      For Each t In tasks
         Console.WriteLine("   Task {0}: {1}", t.Id, t.Status)
      Next
   End Sub
End Module
' The example displays output like the following:
'       Wait ended because task #1 completed.
'
'       Current Status of Tasks:
'          Task 1: RanToCompletion
'          Task 2: Running
'          Task 3: Running
'          Task 4: Running
'          Task 5: Running