PR_NotifyCondVar

NSPR
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Syntax

Parameter

Returns

Description

The calling thread must hold the lock that protects the condition, as well as the invariants that are tightly bound to the condition.

Notification of a condition variable signals a change of state in some monitored data. When the notification occurs, the runtime promotes a thread that is waiting on the condition variable to a ready state. If more than one thread is waiting, the selection of which thread gets promoted cannot be predicted. This implies that all threads waiting on a single condition variable must have the same semantics. If no thread is waiting on the condition variable, the notify operation is a no-op.