MdePkg BaseMemoryLib: Add C implementation of API IsZeroBuffer()

[mirror_edk2.git] / MdePkg / Library / UefiMemoryLib / MemLibInternals.h

diff --git a/MdePkg/Library/UefiMemoryLib/MemLibInternals.h b/MdePkg/Library/UefiMemoryLib/MemLibInternals.h
index d64ea16a6e410534c7846322556f9277bb89913b..cafbb4dd3035a619219e9d57a20c4485149b56ac 100644 (file)
--- a/MdePkg/Library/UefiMemoryLib/MemLibInternals.h
+++ b/MdePkg/Library/UefiMemoryLib/MemLibInternals.h
@@ -1,7 +1,7 @@
 /** @file\r
   Declaration of internal functions for Base Memory Library.\r
 \r
-  Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>\r
   This program and the accompanying materials\r
   are licensed and made available under the terms and conditions of the BSD License\r
   which accompanies this distribution.  The full text of the license may be found at\r
@@ -119,7 +119,7 @@ InternalMemSetMem64 (
 /**\r
   Set Buffer to 0 for Size bytes.\r
 \r
-  @param  Buffer Memory to set.\r
+  @param  Buffer The memory to set.\r
   @param  Length The number of bytes to set\r
 \r
   @return Buffer\r
@@ -135,9 +135,9 @@ InternalMemZeroMem (
 /**\r
   Compares two memory buffers of a given length.\r
 \r
-  @param  DestinationBuffer First memory buffer\r
-  @param  SourceBuffer      Second memory buffer\r
-  @param  Length            Length of DestinationBuffer and SourceBuffer memory\r
+  @param  DestinationBuffer The first memory buffer\r
+  @param  SourceBuffer      The second memory buffer\r
+  @param  Length            The length of DestinationBuffer and SourceBuffer memory\r
                             regions to compare. Must be non-zero.\r
 \r
   @return 0                 All Length bytes of the two buffers are identical.\r
@@ -229,4 +229,21 @@ InternalMemScanMem64 (
   IN      UINT64                    Value\r
   );\r
 \r
+/**\r
+  Checks whether the contents of a buffer are all zeros.\r
+\r
+  @param  Buffer  The pointer to the buffer to be checked.\r
+  @param  Length  The size of the buffer (in bytes) to be checked.\r
+\r
+  @retval TRUE    Contents of the buffer are all zeros.\r
+  @retval FALSE   Contents of the buffer are not all zeros.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+InternalMemIsZeroBuffer (\r
+  IN CONST VOID  *Buffer,\r
+  IN UINTN       Length\r
+  );\r
+\r
 #endif\r