KeAcquireInStackQueuedSpinLockForDpc - NtDoc
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// wdm.h
VOID KeAcquireInStackQueuedSpinLockForDpc(
PKSPIN_LOCK SpinLock,
PKLOCK_QUEUE_HANDLE LockHandle
);
View the official Windows Driver Kit DDI referenceNo description available.
The KeAcquireInStackQueuedSpinLockForDpc routine acquires a queued spin lock for a threaded DPC.
SpinLock[in, out] Pointer to the spin lock to acquire as a queued spin lock. You must have already initialized the spin lock by calling KeInitializeSpinLock.
LockHandle[out] Pointer to a KLOCK_QUEUE_HANDLE structure that receives the lock queue handle. Pass this value to the KeReleaseInStackQueuedSpinLockForDpc routine when you release the queued spin lock.
A CustomThreadedDpc routine can use KeAcquireInStackQueuedSpinLockForDpc to acquire a queued spin lock. If CustomThreadedDpc is executing at IRQL = PASSIVE_LEVEL, KeAcquireInStackQueuedSpinLockForDpc raises the current IRQL to DISPATCH_LEVEL. If CustomThreadedDpc is already executing at IRQL = DISPATCH_LEVEL, KeAcquireInStackQueuedSpinLockForDpc does not change the current IRQL.
For more information about queued spin locks, see Queued Spin Locks.
Call KeReleaseInStackQueuedSpinLockForDpc to release the spin lock that KeAcquireInStackQueuedSpinLockForDpc acquired.
KeReleaseInStackQueuedSpinLockForDpc