Notifies all of the threads waiting on a specified condition variable.
The function returns one of the following values:
- If successful,
- If unsuccessful (for example, if the caller has not locked the lock associated with the condition variable),
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.