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minor improvements

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svn path=/trunk/; revision=810
This commit is contained in:
Eric Kohl 1999-12-01 15:22:49 +00:00
parent 13436cd7f7
commit 2ea8bb5aa4
1 changed files with 66 additions and 29 deletions
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95
reactos/ntoskrnl/rtl/mem.c
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@ -1,4 +1,4 @@
/* $Id: mem.c,v 1.6 1999/11/09 18:03:39 ekohl Exp $
/* $Id: mem.c,v 1.7 1999/12/01 15:22:49 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -22,7 +22,11 @@
ULONG
STDCALL
RtlCompareMemory(PVOID Source1, PVOID Source2, ULONG Length)
RtlCompareMemory (
PVOID Source1,
PVOID Source2,
ULONG Length
)
/*
* FUNCTION: Compares blocks of memory and returns the number of equal bytes
* ARGUMENTS:
@ -33,7 +37,7 @@ RtlCompareMemory(PVOID Source1, PVOID Source2, ULONG Length)
*/
{
int i,total;
for (i=0,total=0;i<Length;i++)
{
if ( ((PUCHAR)Source1)[i] == ((PUCHAR)Source2)[i] )
@ -44,12 +48,46 @@ RtlCompareMemory(PVOID Source1, PVOID Source2, ULONG Length)
return(total);
}
ULONG
STDCALL
RtlCompareMemoryUlong (
PVOID Source,
ULONG Length,
ULONG Value
)
/*
* FUNCTION: Compares a block of ULONGs with an ULONG and returns the number of equal bytes
* ARGUMENTS:
* Source = Block to compare
* Length = Number of bytes to compare
* Value = Value to compare
* RETURNS: Number of equal bytes
*/
{
PULONG ptr = (PULONG)Source;
ULONG len = Length / sizeof(ULONG);
int i;
for (i = 0; i < len; i++)
{
if (*ptr != Value)
break;
ptr++;
}
return (ULONG)((PCHAR)ptr - (PCHAR)Source);
}
#if 0
VOID RtlCopyBytes(PVOID Destination,
CONST VOID* Source,
ULONG Length)
{
RtlCopyMemory(Destination,Source,Length);
}
#endif
VOID RtlCopyMemory(VOID* Destination, CONST VOID* Source, ULONG Length)
{
@ -75,35 +113,20 @@ RtlFillMemory (
VOID
STDCALL
RtlFillMemoryUlong (
PVOID Destination,
ULONG Length,
ULONG Fill
)
{
PULONG Dest = Destination;
ULONG Count = Length / 4;
while (Count > 0)
{
*Dest = Fill;
Dest++;
Count--;
}
}
VOID
STDCALL
RtlZeroMemory (
PVOID Destination,
ULONG Length
ULONG Length,
ULONG Fill
)
{
RtlFillMemory (
Destination,
Length,
0
);
PULONG Dest = Destination;
ULONG Count = Length / sizeof(ULONG);
while (Count > 0)
{
*Dest = Fill;
Dest++;
Count--;
}
}
@ -123,4 +146,18 @@ RtlMoveMemory (
}
VOID
STDCALL
RtlZeroMemory (
PVOID Destination,
ULONG Length
)
{
RtlFillMemory (
Destination,
Length,
0
);
}
/* EOF */