Notifies all of the threads waiting on a specified condition variable.
#include <prcvar.h> PRStatus PR_NotifyAllCondVar(PRCondVar *cvar);
The function returns one of the following values:
PR_SUCCESS
.PR_FAILURE
.The calling thread must hold the lock that protects the condition, as well as the invariants that are tightly bound to the condition.
A call to PR_NotifyAllCondVar
causes all of the threads waiting on the specified condition variable to be promoted to a ready state. If no threads are waiting, the operation is no-op.