KeInitializeDpc

VOID
KeInitializeDpc(

IN PKDPC Dpc,
IN PKDEFERRED_ROUTINE DeferredRoutine,
IN PVOID DeferredContext
);

KeInitializeDpc initializes a DPC object, setting up a deferred procedure that can be called with a given context.

Parameters

Dpc

Points to a DPC object for which the caller provides the storage.

DeferredRoutine

Specifies the entry point for a routine to be called when the DPC object is removed from the DPC queue. A DeferredRoutine is declared as follows:

VOID

(*PKDEFERRED_ROUTINE)(

IN PKDPC Dpc;

IN PVOID DeferredContext;

IN PVOID SystemArgument1;

IN PVOID SystemArgument2;

);

DeferredContext

Points to a caller-supplied context to be passed to the DeferredRoutine when it is called.

Comments

The caller can queue an initialized DPC with KeInsertQueueDpc. The caller also can set up a timer object associated with the initialized DPC object and queue the DPC with KeSetTimer.

Storage for the DPC object must be resident: in the device extension of a driver-created device object, in the controller extension of a driver-created controller object, or in nonpaged pool allocated by the caller.

Callers of this routine must be running at IRQL PASSIVE_LEVEL.

See Also

KeInsertQueueDpc, KeRemoveQueueDpc, KeSetTimer