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/** @file
Library used for sorting and comparison routines.
Copyright (c) 2009, Intel Corporation<BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#if !defined(__SORT_LIB_H__)
#define __SORT_LIB_H__
/**
Prototype for comparison function for any 2 element types.
@param[in] Buffer1 Pointer to first buffer.
@param[in] Buffer2 Pointer to second buffer.
@retval 0 Buffer1 equal to Buffer2.
@return < 0 Buffer1 is less than Buffer2.
@return > 0 Buffer1 is greater than Buffer2.
**/
typedef
INTN
(EFIAPI *SORT_COMPARE)(
IN VOID *Buffer1,
IN VOID *Buffer2
);
/**
Function to perform a Quick Sort on a buffer of comparable elements.
Each element must be equally sized.
If BufferToSort is NULL, then ASSERT.
If CompareFunction is NULL, then ASSERT.
If Count is < 2 then perform no action.
If Size is < 1 then perform no action.
@param[in,out] BufferToSort On call a Buffer of (possibly sorted) elements
on return a buffer of sorted elements.
@param[in] Count The number of elements in the buffer to sort
@param[in] ElementSize Size of an element in bytes.
@param[in] CompareFunction The function to call to perform the comparison
of any 2 elements.
**/
VOID
EFIAPI
PerformQuickSort (
IN OUT VOID *BufferToSort,
IN CONST UINTN Count,
IN CONST UINTN ElementSize,
IN SORT_COMPARE CompareFunction
);
/**
Function to compare 2 device paths for use as CompareFunction.
@param[in] Buffer1 pointer to Device Path to compare
@param[in] Buffer2 pointer to second DevicePath to compare
@retval 0 Buffer1 equal to Buffer2
@return < 0 Buffer1 is less than Buffer2
@return > 0 Buffer1 is greater than Buffer2
**/
INTN
DevicePathCompare (
IN VOID *Buffer1,
IN VOID *Buffer2
);
#endif //__SORT_LIB_H__
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