MdePkg/Library/PeiMemoryLib/MemLib.c

   1 /** @file
   2   Base Memory Library functions implementation bases on PeiServcie.
   3
   4   Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #include "MemLibInternals.h"
  16
  17 /**
  18   Copies a source buffer to a destination buffer, and returns the destination buffer.
  19
  20   This function wraps the gPS->CopyMem ().
  21
  22   @param  DestinationBuffer   Pointer to the destination buffer of the memory copy.
  23   @param  SourceBuffer        Pointer to the source buffer of the memory copy.
  24   @param  Length              Number of bytes to copy from SourceBuffer to DestinationBuffer.
  25
  26   @return DestinationBuffer.
  27
  28 **/
  29 VOID *
  30 EFIAPI
  31 InternalMemCopyMem (
  32   OUT     VOID                      *Destination,
  33   IN      CONST VOID                *Source,
  34   IN      UINTN                     Length
  35   )
  36 {
  37   (*GetPeiServicesTablePointer ())->CopyMem (
  38                                       Destination,
  39                                       (VOID*)Source,
  40                                       Length
  41                                       );
  42   return Destination;
  43 }
  44
  45 /**
  46   Fills a target buffer with a byte value, and returns the target buffer.
  47
  48   This function wraps the gPS->SetMem ().
  49
  50   @param  Buffer    Memory to set.
  51   @param  Size    Number of bytes to set.
  52   @param  Value     Value of the set operation.
  53
  54   @return Buffer.
  55
  56 **/
  57 VOID *
  58 EFIAPI
  59 InternalMemSetMem (
  60   OUT     VOID                      *Buffer,
  61   IN      UINTN                     Size,
  62   IN      UINT8                     Value
  63   )
  64 {
  65   (*GetPeiServicesTablePointer ())->SetMem (
  66                                       Buffer,
  67                                       Size,
  68                                       Value
  69                                       );
  70   return Buffer;
  71 }