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| 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/Include/Library | |
| 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/Include/Library')
| -rw-r--r-- | MdePkg/Include/Library/BaseMemoryLib.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/BaseMemoryLib.h b/MdePkg/Include/Library/BaseMemoryLib.h index 0247ddbb2d..47033d70a0 100644 --- a/MdePkg/Include/Library/BaseMemoryLib.h +++ b/MdePkg/Include/Library/BaseMemoryLib.h @@ -148,6 +148,33 @@ SetMem64 ( );
/**
+ 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.
This function fills Length bytes of Buffer with zeros, and returns Buffer.
@@ -313,6 +340,35 @@ ScanMem64 ( );
/**
+ 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.
This function copies the contents of the 128-bit GUID specified by SourceGuid to
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