PR_NotifyAllCondVar 编辑

Notifies all of the threads waiting on a specified condition variable.

Syntax

#include <prcvar.h>

/wiki/en-US/docs/Mozilla/Projects/NSPR/Reference/PRStatus PR_NotifyAllCondVar(/wiki/en-US/docs/Mozilla/Projects/NSPR/Reference/PRCondVar *cvar);

Returns

The function returns one of the following values:

• If successful, PR_SUCCESS.
• If unsuccessful (for example, if the caller has not locked the lock associated with the condition variable), PR_FAILURE.

Description

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.