Notify a thread waiting on a change in the state of monitored data.


#include <prcmon.h>

PRStatus PR_CNotify(void *address);


The function has the following parameter:


The address of the monitored object. The calling thread must be in the monitor defined by the value of the address.


  • PR_SUCCESS indicates that the calling thread is the holder of the mutex for the monitor referred to by the address parameter.

  • PR_FAILURE indicates that the monitor has not been entered by the calling thread.


Using the value specified in the address parameter to find a monitor in the monitor cache, PR_CNotify notifies single a thread waiting for the monitor’s state to change. If a thread is waiting on the monitor (having called PR_CWait), then that thread is made ready. As soon as the thread is scheduled, it attempts to reenter the monitor.