reactos/ntoskrnl/rtl/mem.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS kernel
   4  * FILE:            kernel/rtl/mem.c
   5  * PURPOSE:         Graceful system shutdown if a bug is detected
   6  * PROGRAMMER:      David Welch (welch@mcmail.com)
   7  * UPDATE HISTORY:
   8  *                  Created 22/05/98
   9  */
  10
  11 /* INCLUDES *****************************************************************/
  12
  13 #include <internal/kernel.h>
  14 #include <internal/linkage.h>
  15 #include <internal/string.h>
  16
  17 #include <ddk/ntddk.h>
  18
  19 #include <internal/debug.h>
  20
  21 /* FUNCTIONS *****************************************************************/
  22
  23 ULONG RtlCompareMemory(PVOID Source1, PVOID Source2, ULONG Length)
  24 /*
  25  * FUNCTION: Compares blocks of memory and returns the number of equal bytes
  26  * ARGUMENTS:
  27  *      Source1 = Block to compare
  28  *      Source2 = Block to compare
  29  *      Length = Number of bytes to compare
  30  * RETURNS: Number of equal bytes
  31  */
  32 {
  33    int i,total;
  34
  35    for (i=0,total=0;i<Length;i++)
  36      {
  37         if ( ((PUCHAR)Source1)[i] == ((PUCHAR)Source2)[i] )
  38           {
  39              total++;
  40           }
  41      }
  42    return(total);
  43 }
  44
  45 VOID RtlCopyBytes(PVOID Destination,
  46                   CONST VOID* Source,
  47                   ULONG Length)
  48 {
  49    RtlCopyMemory(Destination,Source,Length);
  50 }
  51
  52 VOID RtlCopyMemory(VOID* Destination, VOID* Source, ULONG Length)
  53 {
  54    memcpy(Destination,Source,Length);
  55 }
  56
  57 VOID RtlFillMemory(PVOID Destination, ULONG Length, UCHAR Fill)
  58 {
  59    memset(Destination,Fill,Length);
  60 }
  61
  62 VOID RtlZeroMemory(PVOID Destination, ULONG Length)
  63 {
  64    RtlFillMemory(Destination,Length,0);
  65 }
  66
  67 VOID RtlMoveMemory(PVOID Destination,
  68                    CONST VOID* Source,
  69                    ULONG Length)
  70 {
  71    memmove(Destination,Source,Length);
  72 }