File: pr_cnotifyall.rst

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PR_CNotifyAll
=============

Notifies all the threads waiting for a change in the state of monitored
data.


Syntax
------

.. code::

   #include <prcmon.h>

   PRStatus PR_CNotifyAll(void *address);


Parameter
~~~~~~~~~

The function has the following parameter:

``address``
   The address of the monitored object. The calling thread must be in
   the monitor at the time :ref:`PR_CNotifyAll` is called.


Returns
~~~~~~~

 - ``PR_SUCCESS`` indicates that the referenced monitor was located and
   the calling thread was in the monitor.
 - ``PR_FAILURE`` indicates that the referenced monitor could not be
   located or that the calling thread was not in the monitor


Description
-----------

Using the value specified in the address parameter to find a monitor in
the monitor cache, :ref:`PR_CNotifyAll` notifies all threads waiting for
the monitor's state to change. All of the threads waiting on the state
change are then scheduled to reenter the monitor.