/** @file\r
Declaration of internal functions for Base Memory Library.\r
\r
- Copyright (c) 2006 - 2009, Intel Corporation<BR>\r
- All rights reserved. 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
- http://opensource.org/licenses/bsd-license.php\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+ Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
\r
This function wraps the gBS->CopyMem().\r
\r
- @param DestinationBuffer Pointer to the destination buffer of the memory copy.\r
- @param SourceBuffer Pointer to the source buffer of the memory copy.\r
- @param Length Number of bytes to copy from SourceBuffer to DestinationBuffer.\r
+ @param DestinationBuffer The pointer to the destination buffer of the memory copy.\r
+ @param SourceBuffer The pointer to the source buffer of the memory copy.\r
+ @param Length The number of bytes to copy from SourceBuffer to DestinationBuffer.\r
\r
@return DestinationBuffer.\r
\r
This function wraps the gBS->SetMem().\r
\r
@param Buffer Memory to set.\r
- @param Size Number of bytes to set.\r
+ @param Size The number of bytes to set.\r
@param Value Value of the set operation.\r
\r
@return Buffer.\r
/**\r
Fills a target buffer with a 16-bit value, and returns the target buffer.\r
\r
- @param Buffer Pointer to the target buffer to fill.\r
- @param Length Count of 16-bit value to fill.\r
- @param Value Value with which to fill Length bytes of Buffer.\r
+ @param Buffer The pointer to the target buffer to fill.\r
+ @param Length The count of 16-bit value to fill.\r
+ @param Value The value with which to fill Length bytes of Buffer.\r
\r
@return Buffer\r
\r
/**\r
Fills a target buffer with a 32-bit value, and returns the target buffer.\r
\r
- @param Buffer Pointer to the target buffer to fill.\r
- @param Length Count of 32-bit value to fill.\r
- @param Value Value with which to fill Length bytes of Buffer.\r
+ @param Buffer The pointer to the target buffer to fill.\r
+ @param Length The count of 32-bit value to fill.\r
+ @param Value The value with which to fill Length bytes of Buffer.\r
\r
@return Buffer\r
\r
/**\r
Fills a target buffer with a 64-bit value, and returns the target buffer.\r
\r
- @param Buffer Pointer to the target buffer to fill.\r
- @param Length Count of 64-bit value to fill.\r
- @param Value Value with which to fill Length bytes of Buffer.\r
+ @param Buffer The pointer to the target buffer to fill.\r
+ @param Length The count of 64-bit value to fill.\r
+ @param Value The value with which to fill Length bytes of Buffer.\r
\r
@return Buffer\r
\r
/**\r
Set Buffer to 0 for Size bytes.\r
\r
- @param Buffer Memory to set.\r
- @param Length Number of bytes to set\r
+ @param Buffer The memory to set.\r
+ @param Length The number of bytes to set\r
\r
@return Buffer\r
\r
/**\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
Scans a target buffer for an 8-bit value, and returns a pointer to the\r
matching 8-bit value in the target buffer.\r
\r
- @param Buffer Pointer to the target buffer to scan.\r
- @param Length Count of 8-bit value to scan. Must be non-zero.\r
- @param Value Value to search for in the target buffer.\r
+ @param Buffer The pointer to the target buffer to scan.\r
+ @param Length The count of 8-bit value to scan. Must be non-zero.\r
+ @param Value The value to search for in the target buffer.\r
\r
- @return Pointer to the first occurrence or NULL if not found.\r
+ @return The pointer to the first occurrence or NULL if not found.\r
\r
**/\r
CONST VOID *\r
Scans a target buffer for a 16-bit value, and returns a pointer to the\r
matching 16-bit value in the target buffer.\r
\r
- @param Buffer Pointer to the target buffer to scan.\r
- @param Length Count of 16-bit value to scan. Must be non-zero.\r
- @param Value Value to search for in the target buffer.\r
+ @param Buffer The pointer to the target buffer to scan.\r
+ @param Length The count of 16-bit value to scan. Must be non-zero.\r
+ @param Value The value to search for in the target buffer.\r
\r
- @return Pointer to the first occurrence or NULL if not found.\r
+ @return The pointer to the first occurrence or NULL if not found.\r
\r
**/\r
CONST VOID *\r
Scans a target buffer for a 32-bit value, and returns a pointer to the\r
matching 32-bit value in the target buffer.\r
\r
- @param Buffer Pointer to the target buffer to scan.\r
- @param Length Count of 32-bit value to scan. Must be non-zero.\r
- @param Value Value to search for in the target buffer.\r
+ @param Buffer The pointer to the target buffer to scan.\r
+ @param Length The count of 32-bit value to scan. Must be non-zero.\r
+ @param Value The value to search for in the target buffer.\r
\r
- @return Pointer to the first occurrence or NULL if not found.\r
+ @return The pointer to the first occurrence or NULL if not found.\r
\r
**/\r
CONST VOID *\r
Scans a target buffer for a 64-bit value, and returns a pointer to the\r
matching 64-bit value in the target buffer.\r
\r
- @param Buffer Pointer to the target buffer to scan.\r
- @param Length Count of 64-bit value to scan. Must be non-zero.\r
- @param Value Value to search for in the target buffer.\r
+ @param Buffer The pointer to the target buffer to scan.\r
+ @param Length The count of 64-bit value to scan. Must be non-zero.\r
+ @param Value The value to search for in the target buffer.\r
\r
- @return Pointer to the first occurrence or NULL if not found.\r
+ @return The pointer to the first occurrence or NULL if not found.\r
\r
**/\r
CONST VOID *\r
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
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