MdePkg/Library/PeiMemoryLib/MemLib.c

   1 /** @file
   2   Base Memory Library functions implementation bases on PeiServcie.
   3
   4   Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include "MemLibInternals.h"
  10
  11 /**
  12   Copies a source buffer to a destination buffer, and returns the destination buffer.
  13
  14   This function wraps the gPS->CopyMem ().
  15
  16   @param  DestinationBuffer   The pointer to the destination buffer of the memory copy.
  17   @param  SourceBuffer        The pointer to the source buffer of the memory copy.
  18   @param  Length              The number of bytes to copy from SourceBuffer to DestinationBuffer.
  19
  20   @return DestinationBuffer.
  21
  22 **/
  23 VOID *
  24 EFIAPI
  25 InternalMemCopyMem (
  26   OUT     VOID                      *Destination,
  27   IN      CONST VOID                *Source,
  28   IN      UINTN                     Length
  29   )
  30 {
  31   (*GetPeiServicesTablePointer ())->CopyMem (
  32                                       Destination,
  33                                       (VOID*)Source,
  34                                       Length
  35                                       );
  36   return Destination;
  37 }
  38
  39 /**
  40   Fills a target buffer with a byte value, and returns the target buffer.
  41
  42   This function wraps the gPS->SetMem ().
  43
  44   @param  Buffer    Memory to set.
  45   @param  Size      The number of bytes to set.
  46   @param  Value     Value of the set operation.
  47
  48   @return Buffer.
  49
  50 **/
  51 VOID *
  52 EFIAPI
  53 InternalMemSetMem (
  54   OUT     VOID                      *Buffer,
  55   IN      UINTN                     Size,
  56   IN      UINT8                     Value
  57   )
  58 {
  59   (*GetPeiServicesTablePointer ())->SetMem (
  60                                       Buffer,
  61                                       Size,
  62                                       Value
  63                                       );
  64   return Buffer;
  65 }