WakeConditionVariable

WakeConditionVariable wakes at most one thread waiting on the condition variable. The selection is in FIFO order (i.e., the first thread to wait is the first to be awakened).

Syntax

VOID WakeConditionVariable(
    PCONDITION_VARIABLE pConditionVariable
);

Parameters

pConditionVariable

A pointer to the condition variable.

Return Value

This function does not return a value.

Remarks

This function wakes one thread at most.
Selection is in FIFO order (first-in, first-out).
This function does nothing if no threads are waiting.
The awakened thread must reacquire the associated lock.
This function raises EXCEPTION_ACCESS_VIOLATION if pConditionVariable is NULL.

Requirements

Minimum Supported Version	RTX64 4.5.5
Header	windows.h
Library	Rtx_Rtss.lib

Example

Copy

AcquireSRWLockExclusive(&lock);
dataReady = TRUE;
WakeConditionVariable(&cv);  // Wake one waiter
ReleaseSRWLockExclusive(&lock);