ScanMemGeneric.c File Reference

#include "../MemLibInternals.h"

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Functions
CONST VOID *EFIAPI	InternalMemScanMem16 (IN CONST VOID *Buffer, IN UINTN Length, IN UINT16 Value)
CONST VOID *EFIAPI	InternalMemScanMem32 (IN CONST VOID *Buffer, IN UINTN Length, IN UINT32 Value)
CONST VOID *EFIAPI	InternalMemScanMem64 (IN CONST VOID *Buffer, IN UINTN Length, IN UINT64 Value)
BOOLEAN EFIAPI	InternalMemIsZeroBuffer (IN CONST VOID *Buffer, IN UINTN Length)

Detailed Description

Architecture Independent Base Memory Library Implementation.

The following BaseMemoryLib instances contain the same copy of this file: BaseMemoryLib PeiMemoryLib UefiMemoryLib

Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file ScanMemGeneric.c.

Function Documentation

InternalMemIsZeroBuffer()

BOOLEAN EFIAPI InternalMemIsZeroBuffer	(	IN CONST VOID *	Buffer,
		IN UINTN	Length
	)

Checks whether the contents of a buffer are all zeros.

Parameters

Buffer	The pointer to the buffer to be checked.
Length	The size of the buffer (in bytes) to be checked.

Return values

TRUE	Contents of the buffer are all zeros.
FALSE	Contents of the buffer are not all zeros.

Definition at line 127 of file ScanMemGeneric.c.

InternalMemScanMem16()

CONST VOID *EFIAPI InternalMemScanMem16	(	IN CONST VOID *	Buffer,
		IN UINTN	Length,
		IN UINT16	Value
	)

Scans a target buffer for a 16-bit value, and returns a pointer to the matching 16-bit value in the target buffer.

Parameters

Buffer	The pointer to the target buffer to scan.
Length	The count of 16-bit value to scan. Must be non-zero.
Value	The value to search for in the target buffer.

Returns

The pointer to the first occurrence, or NULL if not found.

Definition at line 29 of file ScanMemGeneric.c.

InternalMemScanMem32()

CONST VOID *EFIAPI InternalMemScanMem32	(	IN CONST VOID *	Buffer,
		IN UINTN	Length,
		IN UINT32	Value
	)

Scans a target buffer for a 32-bit value, and returns a pointer to the matching 32-bit value in the target buffer.

Parameters

Buffer	The pointer to the target buffer to scan.
Length	The count of 32-bit value to scan. Must be non-zero.
Value	The value to search for in the target buffer.

Returns

The pointer to the first occurrence, or NULL if not found.

Definition at line 62 of file ScanMemGeneric.c.

InternalMemScanMem64()

CONST VOID *EFIAPI InternalMemScanMem64	(	IN CONST VOID *	Buffer,
		IN UINTN	Length,
		IN UINT64	Value
	)

Scans a target buffer for a 64-bit value, and returns a pointer to the matching 64-bit value in the target buffer.

Parameters

Buffer	The pointer to the target buffer to scan.
Length	The count of 64-bit value to scan. Must be non-zero.
Value	The value to search for in the target buffer.

Returns

The pointer to the first occurrence, or NULL if not found.

Definition at line 95 of file ScanMemGeneric.c.