Barrier.SignalAndWait Method (TimeSpan)

Signals that a participant has reached the barrier and waits for all other participants to reach the barrier as well, using a TimeSpan object to measure the time interval.

Namespace:  System.Threading
Assembly:  System (in System.dll)

public bool SignalAndWait(
	TimeSpan timeout


Type: System.TimeSpan

A TimeSpan that represents the number of milliseconds to wait, or a TimeSpan that represents -1 milliseconds to wait indefinitely.

Return Value

Type: System.Boolean
true if all other participants reached the barrier; otherwise, false.


The current instance has already been disposed.


timeoutis a negative number other than -1 milliseconds, which represents an infinite time-out, or it is greater than 32,767.


The method was invoked from within a post-phase action, the barrier currently has 0 participants, or the barrier is signaled by more threads than are registered as participants.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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