NdisDprReleaseReadWriteLock function (ndis.h)

Article
02/22/2024

The NdisDprReleaseReadWriteLock function releases a lock that was acquired in a preceding call to NdisDprAcquireReadWriteLock.

Note The read-write lock interface is deprecated for NDIS 6.20 and later drivers, which should use NdisReleaseRWLock instead of NdisDprReleaseReadWriteLock.

Syntax

void NdisDprReleaseReadWriteLock(
  [in, out] PNDIS_RW_LOCK Lock,
            PLOCK_STATE   LockState
);

Parameters

[in, out] Lock

A pointer to an NDIS_RW_LOCK variable for the acquired lock to be released.

LockState

A pointer to an opaque LOCK_STATE variable that tracks the state of the lock. This variable exists in the interval between the time the caller acquires and releases the lock.

Return value

None

Remarks

A driver must initialize a lock before calling any other NdisXxxReadWriteLock function that is used to acquire or release read or write access to the resources that are protected by that lock. The NdisInitializeReadWriteLock function is used to initialize a lock.

A driver must call the NdisDprAcquireReadWriteLock function to acquire a lock before the driver can call NdisDprReleaseReadWriteLock. Each call to NdisDprAcquireReadWriteLock requires a reciprocal call to NdisDprReleaseReadWriteLock.

Requirements

Requirement	Value
Minimum supported client	Supported for NDIS 6.0 and 6.1.
Target Platform	Universal
Header	ndis.h (include Ndis.h)
Library	Ndis.lib
IRQL	DISPATCH_LEVEL