mirror of https://github.com/acidanthera/audk.git
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/** @file
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Internal functions shared in DxeCore module.
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Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _DXE_LIBRARY_H_
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#define _DXE_LIBRARY_H_
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/**
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Raising to the task priority level of the mutual exclusion
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lock, and then acquires ownership of the lock.
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@param Lock The lock to acquire
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@return Lock owned
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**/
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VOID
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CoreAcquireLock (
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IN EFI_LOCK *Lock
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);
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/**
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Initialize a basic mutual exclusion lock. Each lock
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provides mutual exclusion access at it's task priority
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level. Since there is no-premption (at any TPL) or
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multiprocessor support, acquiring the lock only consists
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of raising to the locks TPL.
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@param Lock The EFI_LOCK structure to initialize
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@retval EFI_SUCCESS Lock Owned.
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@retval EFI_ACCESS_DENIED Reentrant Lock Acquisition, Lock not Owned.
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**/
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EFI_STATUS
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CoreAcquireLockOrFail (
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IN EFI_LOCK *Lock
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);
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/**
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Releases ownership of the mutual exclusion lock, and
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restores the previous task priority level.
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@param Lock The lock to release
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@return Lock unowned
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**/
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VOID
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CoreReleaseLock (
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IN EFI_LOCK *Lock
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);
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#endif
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