WaitHandle.WaitAny Method (WaitHandle())
July 28, 2014
Waits for any of the elements in the specified array to receive a signal.
Assembly: mscorlib (in mscorlib.dll)
'Declaration Public Shared Function WaitAny ( _ waitHandles As WaitHandle() _ ) As Integer
An array that contains the objects for which the current instance will wait.
Return ValueType: System.Int32
The array index of the object that satisfied the wait.
This method returns when any handle is signaled. If more than one object becomes signaled during the call, the return value is the array index of the signaled object with the smallest index value of all the signaled objects. On some implementations, if more that 64 handles are passed, a NotSupportedException is thrown.
The following example demonstrates how to call the WaitAny method to wait for the first of several threads to finish.
This code is part of a larger example provided for the WaitAll(WaitHandle()) method overload.
' Wait for ANY subtask to complete. ' Create an array of ManualResetEvent wait handles. Each subtask will ' signal its ManualResetEvent when it is finished. Dim waitHandles() As WaitHandle = finished.ToArray() Dim index As Integer = WaitHandle.WaitTimeout index = WaitHandle.WaitAny(waitHandles)