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+PR_NotifyAll
+============
+
+Promotes all threads waiting on a specified monitor to a ready state.
+
+
+Syntax
+------
+
+.. code::
+
+   #include <prmon.h>
+
+   PRStatus PR_NotifyAll(PRMonitor *mon);
+
+
+Parameters
+~~~~~~~~~~
+
+The function has the following parameter:
+
+``mon``
+   A reference to an existing structure of type :ref:`PRMonitor`. The
+   monitor object referenced must be one for which the calling thread
+   currently holds the lock.
+
+
+Returns
+~~~~~~~
+
+The function returns one of the following values:
+
+-  If successful, ``PR_SUCCESS``.
+-  If unsuccessful, ``PR_FAILURE``.
+
+
+Description
+-----------
+
+A call to :ref:`PR_NotifyAll` causes all of the threads waiting on the
+monitor to be scheduled to be promoted to a ready state. If no threads
+are waiting, the operation is no-op.
+
+:ref:`PR_NotifyAll` should be used with some care. The expense of
+scheduling multiple threads increases dramatically as the number of
+threads increases.