Implement RtlCopyMemory() and RtlSameMemory(), no inline functions in static library
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This commit is contained in:
Rafal Kupiec 2022-08-21 16:27:57 +02:00
parent 18d5a6d794
commit e61108d9b5
Signed by: belliash
GPG Key ID: 4E829243E0CFE6B4
4 changed files with 108 additions and 10 deletions

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@ -10,6 +10,7 @@ include_directories(
list(APPEND XTKLIB_SOURCE
${XTKLIB_SOURCE_DIR}/hl/cport.c
${XTKLIB_SOURCE_DIR}/hl/${ARCH}/cpufunc.c
${XTKLIB_SOURCE_DIR}/rtl/memory.c
${XTKLIB_SOURCE_DIR}/rtl/plist.c
${XTKLIB_SOURCE_DIR}/rtl/widestr.c)

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@ -14,28 +14,35 @@
#include "xttypes.h"
XTINLINE
XTAPI
PVOID
RtlCopyMemory(IN PVOID Destination,
IN PCVOID Source,
IN SIZE_T Length);
VOID
RtlInitializeListHead(IN PLIST_ENTRY ListHead);
XTINLINE
VOID
RtlInitializeListHead32(IN PLIST_ENTRY32 ListHead);
XTINLINE
VOID
RtlInsertHeadList(IN OUT PLIST_ENTRY ListHead,
IN OUT PLIST_ENTRY Entry);
XTINLINE
VOID
RtlInsertTailList(IN OUT PLIST_ENTRY ListHead,
IN OUT PLIST_ENTRY Entry);
XTINLINE
BOOLEAN
RtlListEmpty(PLIST_ENTRY ListHead);
XTAPI
SIZE_T
RtlSameMemory(IN PCVOID LeftBuffer,
IN PCVOID RightBuffer,
IN SIZE_T Length);
INT
RtlWideStringCompare(IN CONST PWCHAR String1,
IN CONST PWCHAR String2,

95
sdk/xtklib/rtl/memory.c Normal file
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@ -0,0 +1,95 @@
/**
* PROJECT: ExectOS
* COPYRIGHT: See COPYING.md in the top level directory
* FILE: sdk/xtklib/rtl/memory.c
* DESCRIPTION: Memory related routines
* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
*/
#include <xtkmapi.h>
/**
* This routine copies a block of memory.
*
* @param Destination
* Supplies a pointer to the buffer where data will be copied to.
*
* @param Source
* Supplies a pointer to the source buffer that will be copied.
*
* @param Length
* Specifies the number of bytes to copy.
*
* @return Returns the destination pointer.
*
* @since NT 3.5
*/
XTAPI
PVOID
RtlCopyMemory(IN PVOID Destination,
IN PCVOID Source,
IN SIZE_T Length)
{
PCHAR DestinationBytes = (PCHAR)Destination;
PCHAR SourceBytes = (PCHAR)Source;
/* Forward buffer copy */
while(Length--)
{
*DestinationBytes++ = *SourceBytes++;
}
/* Return pointer to destination buffer */
return Destination;
}
/**
* This routine compares the first bytes of the specified memory buffers.
*
* @param LeftBuffer
* Supplies a pointer to the first block of memory to compare.
*
* @param RightBuffer
* Supplies a pointer to the second block of memory to compare.
*
* @param Length
* Specifies a number of bytes to compare.
*
* @return A value indicating the relationship between the content of the memory blocks.
* It returns zero (0) if both memory blocks are equal or a value different than
* zero representing which is greater if they do not match.
*
* @since XT 1.0
*/
XTAPI
SIZE_T
RtlSameMemory(IN PCVOID LeftBuffer,
IN PCVOID RightBuffer,
IN SIZE_T Length)
{
CONST UCHAR *Left = (PUCHAR)LeftBuffer;
CONST UCHAR *Right = (PUCHAR)RightBuffer;
/* Check if there is anything to compare */
if(Length)
{
/* Iterate through whole buffer length */
while(Length--)
{
/* Compare bytes from both bufers */
if(*Left != *Right)
{
/* Buffers differ */
return (*Left - *Right);
}
/* Advance to next byte */
Left++;
Right++;
}
}
/* Buffers equal */
return 0;
}

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@ -19,7 +19,6 @@
*
* @since XT 1.0
*/
XTINLINE
VOID
RtlInitializeListHead(IN PLIST_ENTRY ListHead)
{
@ -37,7 +36,6 @@ RtlInitializeListHead(IN PLIST_ENTRY ListHead)
*
* @since XT 1.0
*/
XTINLINE
VOID
RtlInitializeListHead32(IN PLIST_ENTRY32 ListHead)
{
@ -58,7 +56,6 @@ RtlInitializeListHead32(IN PLIST_ENTRY32 ListHead)
*
* @since XT 1.0
*/
XTINLINE
VOID
RtlInsertHeadList(IN OUT PLIST_ENTRY ListHead,
IN OUT PLIST_ENTRY Entry)
@ -82,7 +79,6 @@ RtlInsertHeadList(IN OUT PLIST_ENTRY ListHead,
*
* @since XT 1.0
*/
XTINLINE
VOID
RtlInsertTailList(IN OUT PLIST_ENTRY ListHead,
IN OUT PLIST_ENTRY Entry)
@ -103,7 +99,6 @@ RtlInsertTailList(IN OUT PLIST_ENTRY ListHead,
*
* @since XT 1.0
*/
XTINLINE
BOOLEAN
RtlListEmpty(PLIST_ENTRY ListHead)
{