diff options
| author | mdkinney <mdkinney@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-12-05 18:48:52 +0000 |
|---|---|---|
| committer | mdkinney <mdkinney@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-12-05 18:48:52 +0000 |
| commit | f7753a96ba1653ddd31b01c198a352f6332ac404 (patch) | |
| tree | 8b4574ec6984908bb8f6dc8a6e5fe25836c6bffa /MdePkg/Library/BaseMemoryLib | |
| parent | 432cf05bcffa00c084bff8a8fcffb477c3227aa4 (diff) | |
| download | edk2-platforms-f7753a96ba1653ddd31b01c198a352f6332ac404.tar.xz | |
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
Diffstat (limited to 'MdePkg/Library/BaseMemoryLib')
| -rw-r--r-- | MdePkg/Library/BaseMemoryLib/ScanMem8Wrapper.c | 38 | ||||
| -rw-r--r-- | MdePkg/Library/BaseMemoryLib/SetMemWrapper.c | 35 |
2 files changed, 71 insertions, 2 deletions
diff --git a/MdePkg/Library/BaseMemoryLib/ScanMem8Wrapper.c b/MdePkg/Library/BaseMemoryLib/ScanMem8Wrapper.c index 2add7849cd..9efca5e02a 100644 --- a/MdePkg/Library/BaseMemoryLib/ScanMem8Wrapper.c +++ b/MdePkg/Library/BaseMemoryLib/ScanMem8Wrapper.c @@ -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);
+}
+
diff --git a/MdePkg/Library/BaseMemoryLib/SetMemWrapper.c b/MdePkg/Library/BaseMemoryLib/SetMemWrapper.c index b6bc1f4387..f60691da40 100644 --- a/MdePkg/Library/BaseMemoryLib/SetMemWrapper.c +++ b/MdePkg/Library/BaseMemoryLib/SetMemWrapper.c @@ -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);
+}
|