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Add SetMemN() and ScanMemN() to the BaseMemoryLib class and all BaseMemoryLib implementations 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9517 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
mdkinney 2009-12-05 18:48:52 +00:00
parent 432cf05bcf
commit f7753a96ba
17 changed files with 624 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
MdePkg/Include/Library/BaseMemoryLib.h
View File

@ -147,6 +147,33 @@ SetMem64 (
IN UINT64 Value
);
/**
Fills a target buffer with a value that is size UINTN, and returns the target buffer.
This function fills Length bytes of Buffer with the UINTN sized value specified by
Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMemN (
OUT VOID *Buffer,
IN UINTN Length,
IN UINTN Value
);
/**
Fills a target buffer with zeros, and returns the target buffer.
@ -312,6 +339,35 @@ ScanMem64 (
IN UINT64 Value
);
/**
Scans a target buffer for a UINTN sized value, and returns a pointer to the matching
UINTN sized value in the target buffer.
This function searches target the buffer specified by Buffer and Length from the lowest
address to the highest address for a UINTN sized value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMemN (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINTN Value
);
/**
Copies a source GUID to a destination GUID.

38
MdePkg/Library/BaseMemoryLib/ScanMem8Wrapper.c
View File

@ -1,5 +1,5 @@
/** @file
ScanMem8() implementation.
ScanMem8() and ScanMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -60,3 +60,39 @@ ScanMem8 (
return (VOID*)InternalMemScanMem8 (Buffer, Length, Value);
}
/**
Scans a target buffer for a UINTN sized value, and returns a pointer to the matching
UINTN sized value in the target buffer.
This function searches target the buffer specified by Buffer and Length from the lowest
address to the highest address for a UINTN sized value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMemN (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return ScanMem64 (Buffer, Length, (UINT64)Value);
}
return ScanMem32 (Buffer, Length, (UINT32)Value);
}

35
MdePkg/Library/BaseMemoryLib/SetMemWrapper.c
View File

@ -1,5 +1,5 @@
/** @file
SetMem() implementation.
SetMem() and SetMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -55,3 +55,36 @@ SetMem (
return InternalMemSetMem (Buffer, Length, Value);
}
/**
Fills a target buffer with a value that is size UINTN, and returns the target buffer.
This function fills Length bytes of Buffer with the UINTN sized value specified by
Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMemN (
OUT VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return SetMem64 (Buffer, Length, (UINT64)Value);
}
return SetMem32 (Buffer, Length, (UINT32)Value);
}

38
MdePkg/Library/BaseMemoryLibMmx/ScanMem8Wrapper.c
View File

@ -1,5 +1,5 @@
/** @file
ScanMem8() implementation.
ScanMem8() and ScanMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -60,3 +60,39 @@ ScanMem8 (
return (VOID*)InternalMemScanMem8 (Buffer, Length, Value);
}
/**
Scans a target buffer for a UINTN sized value, and returns a pointer to the matching
UINTN sized value in the target buffer.
This function searches target the buffer specified by Buffer and Length from the lowest
address to the highest address for a UINTN sized value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMemN (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return ScanMem64 (Buffer, Length, (UINT64)Value);
}
return ScanMem32 (Buffer, Length, (UINT32)Value);
}

35
MdePkg/Library/BaseMemoryLibMmx/SetMemWrapper.c
View File

@ -1,5 +1,5 @@
/** @file
SetMem() implementation.
SetMem() and SetMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -55,3 +55,36 @@ SetMem (
return InternalMemSetMem (Buffer, Length, Value);
}
/**
Fills a target buffer with a value that is size UINTN, and returns the target buffer.
This function fills Length bytes of Buffer with the UINTN sized value specified by
Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMemN (
OUT VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return SetMem64 (Buffer, Length, (UINT64)Value);
}
return SetMem32 (Buffer, Length, (UINT32)Value);
}

38
MdePkg/Library/BaseMemoryLibOptDxe/ScanMem8Wrapper.c
View File

@ -1,5 +1,5 @@
/** @file
ScanMem8() implementation.
ScanMem8() and ScanMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -60,3 +60,39 @@ ScanMem8 (
return (VOID*)InternalMemScanMem8 (Buffer, Length, Value);
}
/**
Scans a target buffer for a UINTN sized value, and returns a pointer to the matching
UINTN sized value in the target buffer.
This function searches target the buffer specified by Buffer and Length from the lowest
address to the highest address for a UINTN sized value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMemN (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return ScanMem64 (Buffer, Length, (UINT64)Value);
}
return ScanMem32 (Buffer, Length, (UINT32)Value);
}

35
MdePkg/Library/BaseMemoryLibOptDxe/SetMemWrapper.c
View File

@ -1,5 +1,5 @@
/** @file
SetMem() implementation.
SetMem() and SetMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -55,3 +55,36 @@ SetMem (
return InternalMemSetMem (Buffer, Length, Value);
}
/**
Fills a target buffer with a value that is size UINTN, and returns the target buffer.
This function fills Length bytes of Buffer with the UINTN sized value specified by
Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMemN (
OUT VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return SetMem64 (Buffer, Length, (UINT64)Value);
}
return SetMem32 (Buffer, Length, (UINT32)Value);
}

38
MdePkg/Library/BaseMemoryLibOptPei/ScanMem8Wrapper.c
View File

@ -1,5 +1,5 @@
/** @file
ScanMem8() implementation.
ScanMem8() and ScanMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -60,3 +60,39 @@ ScanMem8 (
return (VOID*)InternalMemScanMem8 (Buffer, Length, Value);
}
/**
Scans a target buffer for a UINTN sized value, and returns a pointer to the matching
UINTN sized value in the target buffer.
This function searches target the buffer specified by Buffer and Length from the lowest
address to the highest address for a UINTN sized value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMemN (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return ScanMem64 (Buffer, Length, (UINT64)Value);
}
return ScanMem32 (Buffer, Length, (UINT32)Value);
}

35
MdePkg/Library/BaseMemoryLibOptPei/SetMemWrapper.c
View File

@ -1,5 +1,5 @@
/** @file
SetMem() implementation.
SetMem() and SetMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -55,3 +55,36 @@ SetMem (
return InternalMemSetMem (Buffer, Length, Value);
}
/**
Fills a target buffer with a value that is size UINTN, and returns the target buffer.
This function fills Length bytes of Buffer with the UINTN sized value specified by
Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMemN (
OUT VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return SetMem64 (Buffer, Length, (UINT64)Value);
}
return SetMem32 (Buffer, Length, (UINT32)Value);
}

38
MdePkg/Library/BaseMemoryLibRepStr/ScanMem8Wrapper.c
View File

@ -1,5 +1,5 @@
/** @file
ScanMem8() implementation.
ScanMem8() and ScanMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -60,3 +60,39 @@ ScanMem8 (
return (VOID*)InternalMemScanMem8 (Buffer, Length, Value);
}
/**
Scans a target buffer for a UINTN sized value, and returns a pointer to the matching
UINTN sized value in the target buffer.
This function searches target the buffer specified by Buffer and Length from the lowest
address to the highest address for a UINTN sized value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMemN (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return ScanMem64 (Buffer, Length, (UINT64)Value);
}
return ScanMem32 (Buffer, Length, (UINT32)Value);
}

35
MdePkg/Library/BaseMemoryLibRepStr/SetMemWrapper.c
View File

@ -1,5 +1,5 @@
/** @file
SetMem() implementation.
SetMem() and SetMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -55,3 +55,36 @@ SetMem (
return InternalMemSetMem (Buffer, Length, Value);
}
/**
Fills a target buffer with a value that is size UINTN, and returns the target buffer.
This function fills Length bytes of Buffer with the UINTN sized value specified by
Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMemN (
OUT VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return SetMem64 (Buffer, Length, (UINT64)Value);
}
return SetMem32 (Buffer, Length, (UINT32)Value);
}

38
MdePkg/Library/BaseMemoryLibSse2/ScanMem8Wrapper.c
View File

@ -1,5 +1,5 @@
/** @file
ScanMem8() implementation.
ScanMem8() and ScanMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -60,3 +60,39 @@ ScanMem8 (
return (VOID*)InternalMemScanMem8 (Buffer, Length, Value);
}
/**
Scans a target buffer for a UINTN sized value, and returns a pointer to the matching
UINTN sized value in the target buffer.
This function searches target the buffer specified by Buffer and Length from the lowest
address to the highest address for a UINTN sized value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMemN (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return ScanMem64 (Buffer, Length, (UINT64)Value);
}
return ScanMem32 (Buffer, Length, (UINT32)Value);
}

35
MdePkg/Library/BaseMemoryLibSse2/SetMemWrapper.c
View File

@ -1,5 +1,5 @@
/** @file
SetMem() implementation.
SetMem() and SetMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -55,3 +55,36 @@ SetMem (
return InternalMemSetMem (Buffer, Length, Value);
}
/**
Fills a target buffer with a value that is size UINTN, and returns the target buffer.
This function fills Length bytes of Buffer with the UINTN sized value specified by
Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMemN (
OUT VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return SetMem64 (Buffer, Length, (UINT64)Value);
}
return SetMem32 (Buffer, Length, (UINT32)Value);
}

38
MdePkg/Library/PeiMemoryLib/ScanMem8Wrapper.c
View File

@ -1,5 +1,5 @@
/** @file
ScanMem8() implementation.
ScanMem8() and ScanMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -60,3 +60,39 @@ ScanMem8 (
return (VOID*)InternalMemScanMem8 (Buffer, Length, Value);
}
/**
Scans a target buffer for a UINTN sized value, and returns a pointer to the matching
UINTN sized value in the target buffer.
This function searches target the buffer specified by Buffer and Length from the lowest
address to the highest address for a UINTN sized value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMemN (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return ScanMem64 (Buffer, Length, (UINT64)Value);
}
return ScanMem32 (Buffer, Length, (UINT32)Value);
}

35
MdePkg/Library/PeiMemoryLib/SetMemWrapper.c
View File

@ -1,5 +1,5 @@
/** @file
SetMem() implementation.
SetMem() and SetMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -55,3 +55,36 @@ SetMem (
return InternalMemSetMem (Buffer, Length, Value);
}
/**
Fills a target buffer with a value that is size UINTN, and returns the target buffer.
This function fills Length bytes of Buffer with the UINTN sized value specified by
Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMemN (
OUT VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return SetMem64 (Buffer, Length, (UINT64)Value);
}
return SetMem32 (Buffer, Length, (UINT32)Value);
}

38
MdePkg/Library/UefiMemoryLib/ScanMem8Wrapper.c
View File

@ -1,5 +1,5 @@
/** @file
ScanMem8() implementation.
ScanMem8() and ScanMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -60,3 +60,39 @@ ScanMem8 (
return (VOID*)InternalMemScanMem8 (Buffer, Length, Value);
}
/**
Scans a target buffer for a UINTN sized value, and returns a pointer to the matching
UINTN sized value in the target buffer.
This function searches target the buffer specified by Buffer and Length from the lowest
address to the highest address for a UINTN sized value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMemN (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return ScanMem64 (Buffer, Length, (UINT64)Value);
}
return ScanMem32 (Buffer, Length, (UINT32)Value);
}

35
MdePkg/Library/UefiMemoryLib/SetMemWrapper.c
View File

@ -1,5 +1,5 @@
/** @file
SetMem() implementation.
SetMem() and SetMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
@ -55,3 +55,36 @@ SetMem (
return InternalMemSetMem (Buffer, Length, Value);
}
/**
Fills a target buffer with a value that is size UINTN, and returns the target buffer.
This function fills Length bytes of Buffer with the UINTN sized value specified by
Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMemN (
OUT VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return SetMem64 (Buffer, Length, (UINT64)Value);
}
return SetMem32 (Buffer, Length, (UINT32)Value);
}