DpcLib.h File Reference

Functions
EFI_STATUS EFIAPI	QueueDpc (IN EFI_TPL DpcTpl, IN EFI_DPC_PROCEDURE DpcProcedure, IN VOID *DpcContext)
EFI_STATUS EFIAPI	DispatchDpc (VOID)

Detailed Description

DpcLib.h.

Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Function Documentation

EFI_STATUS EFIAPI DispatchDpc

(

VOID

)

Dispatch the queue of DPCs. All DPCs that have been queued with a DpcTpl value greater than or equal to the current TPL are invoked in the order that they were queued. DPCs with higher DpcTpl values are invoked before DPCs with lower DpcTpl values.

Return values

EFI_SUCCESS	One or more DPCs were invoked.
EFI_NOT_FOUND	No DPCs were invoked.

EFI_STATUS EFIAPI QueueDpc	(	IN EFI_TPL	DpcTpl,
		IN EFI_DPC_PROCEDURE	DpcProcedure,
		IN VOID *	DpcContext
	)

Add a Deferred Procedure Call to the end of the DPC queue.

Parameters

[in]	DpcTpl	The EFI_TPL that the DPC should invoke.
[in]	DpcProcedure	The pointer to the DPC's function.
[in]	DpcContext	The pointer to the DPC's context. Passed to DpcProcedure when DpcProcedure is invoked.

Return values

EFI_SUCCESS	The DPC was queued.
EFI_INVALID_PARAMETER	DpcTpl is not a valid EFI_TPL.
EFI_INVALID_PARAMETER	DpcProcedure is NULL.
EFI_OUT_OF_RESOURCES	There are not enough resources available to add the DPC to the queue.