Library.c File Reference

#include "DxeMain.h"

Go to the source code of this file.

Functions
EFI_STATUS	CoreAcquireLockOrFail (IN EFI_LOCK *Lock)
VOID	CoreAcquireLock (IN EFI_LOCK *Lock)
VOID	CoreReleaseLock (IN EFI_LOCK *Lock)

Detailed Description

DXE Core library services.

Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file Library.c.

Function Documentation

CoreAcquireLock()

VOID CoreAcquireLock

(

IN EFI_LOCK *

Lock

)

Raising to the task priority level of the mutual exclusion lock, and then acquires ownership of the lock.

Parameters

Lock	The lock to acquire

Returns

Lock owned

Definition at line 59 of file Library.c.

CoreAcquireLockOrFail()

EFI_STATUS CoreAcquireLockOrFail

(

IN EFI_LOCK *

Lock

)

Initialize a basic mutual exclusion lock. Each lock provides mutual exclusion access at it's task priority level. Since there is no-premption (at any TPL) or multiprocessor support, acquiring the lock only consists of raising to the locks TPL.

Parameters

Lock	The EFI_LOCK structure to initialize

Return values

EFI_SUCCESS	Lock Owned.
EFI_ACCESS_DENIED	Reentrant Lock Acquisition, Lock not Owned.

Definition at line 29 of file Library.c.

CoreReleaseLock()

VOID CoreReleaseLock

(

IN EFI_LOCK *

Lock

)

Releases ownership of the mutual exclusion lock, and restores the previous task priority level.

Parameters

Lock	The lock to release

Returns

Lock unowned

Definition at line 80 of file Library.c.