uefiruntimeservicestablelib.c

来自「EFI BIOS是Intel提出的下一代的BIOS标准。这里上传的Edk源代码是」· C语言 代码 · 共 53 行

/*++

Copyright (c) 2004 - 2006, Intel Corporation                                                         
All rights reserved. This program and the accompanying materials                          
are licensed and made available under the terms and conditions of the BSD License         
which accompanies this distribution.  The full text of the license may be found at        
http://opensource.org/licenses/bsd-license.php                                            
                                                                                          
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.              


Module Name:

  UefiRuntimeServicesTableLib.c
  
Abstract: 

  UEFI Runtime Services Table Library.

--*/

#include "EdkIIGlueUefi.h"

EFI_RUNTIME_SERVICES  *gRT = NULL;

/**
  The constructor function caches the pointer of Runtime Services Table.

  The constructor function caches the pointer of Runtime Services Table.
  It will ASSERT() if the pointer of Runtime Services Table is NULL.
  It will always return EFI_SUCCESS.

  @param  ImageHandle   The firmware allocated handle for the EFI image.
  @param  SystemTable   A pointer to the EFI System Table.

  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.

**/
EFI_STATUS
UefiRuntimeServicesTableLibConstructor (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  //
  // Cache pointer to the EFI Runtime Services Table
  //
  gRT = SystemTable->RuntimeServices;
  ASSERT (gRT != NULL);
  return EFI_SUCCESS;
}