883 B
883 B
PR_NotifyAll
Promotes all threads waiting on a specified monitor to a ready state.
Syntax
#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.