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Monitor.PulseAll Method

Notifies all waiting threads of a change in the object's state.

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

public static void PulseAll (
	Object obj
)
public static void PulseAll (
	Object obj
)
public static function PulseAll (
	obj : Object
)

Parameters

obj

The object that sends the pulse.

Exception typeCondition

ArgumentNullException

The obj parameter is a null reference (Nothing in Visual Basic).

SynchronizationLockException

The calling thread does not own the lock for the specified object.

The thread that currently owns the lock on the specified object invokes this method to signal all threads waiting to acquire the lock on the object. After the signal is sent, the waiting threads are moved to the ready queue. When the thread that invoked PulseAll releases the lock, the next thread in the ready queue acquires the lock.

Note that a synchronized object holds several references, including a reference to the thread that currently holds the lock, a reference to the ready queue, which contains the threads that are ready to obtain the lock, and a reference to the waiting queue, which contains the threads that are waiting for notification of a change in the object's state.

The Pulse, PulseAll, and Wait methods must be invoked from within a synchronized block of code.

The remarks for the Pulse method explain what happens if Pulse is called when no threads are waiting.

To signal a single thread, use the Pulse method.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

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