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4983ca93 | 1 | /** @file\r |
125c2cf4 | 2 | Library used for sorting and comparison routines.\r |
4983ca93 | 3 | \r |
a31bd33c | 4 | Copyright (c) 2009, Intel Corporation<BR>\r |
4983ca93 | 5 | All rights reserved. This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #if !defined(__SORT_LIB_H__)\r | |
16 | #define __SORT_LIB_H__\r | |
17 | \r | |
18 | /**\r | |
19 | Prototype for comparison function for any 2 element types.\r | |
20 | \r | |
a31bd33c | 21 | @param[in] Buffer1 Pointer to first buffer.\r |
22 | @param[in] Buffer2 Pointer to second buffer.\r | |
4983ca93 | 23 | \r |
a31bd33c | 24 | @retval 0 Buffer1 equal to Buffer2.\r |
25 | @return < 0 Buffer1 is less than Buffer2.\r | |
26 | @return > 0 Buffer1 is greater than Buffer2.\r | |
4983ca93 | 27 | **/\r |
28 | typedef\r | |
29 | INTN\r | |
30 | (EFIAPI *SORT_COMPARE)(\r | |
31 | IN VOID *Buffer1,\r | |
32 | IN VOID *Buffer2\r | |
33 | );\r | |
34 | \r | |
35 | /**\r | |
36 | Function to perform a Quick Sort on a buffer of comparable elements.\r | |
37 | \r | |
38 | Each element must be equally sized.\r | |
39 | \r | |
a31bd33c | 40 | If BufferToSort is NULL, then ASSERT.\r |
41 | If CompareFunction is NULL, then ASSERT.\r | |
4983ca93 | 42 | \r |
a31bd33c | 43 | If Count is < 2 then perform no action.\r |
44 | If Size is < 1 then perform no action.\r | |
4983ca93 | 45 | \r |
a31bd33c | 46 | @param[in,out] BufferToSort On call a Buffer of (possibly sorted) elements\r |
47 | on return a buffer of sorted elements.\r | |
48 | @param[in] Count The number of elements in the buffer to sort\r | |
49 | @param[in] ElementSize Size of an element in bytes.\r | |
4983ca93 | 50 | @param[in] CompareFunction The function to call to perform the comparison \r |
a31bd33c | 51 | of any 2 elements.\r |
4983ca93 | 52 | **/\r |
53 | VOID\r | |
54 | EFIAPI\r | |
55 | PerformQuickSort (\r | |
56 | IN OUT VOID *BufferToSort,\r | |
57 | IN CONST UINTN Count,\r | |
58 | IN CONST UINTN ElementSize,\r | |
59 | IN SORT_COMPARE CompareFunction\r | |
60 | );\r | |
61 | \r | |
125c2cf4 | 62 | \r |
63 | /**\r | |
64 | Function to compare 2 device paths for use as CompareFunction.\r | |
65 | \r | |
66 | @param[in] Buffer1 pointer to Device Path to compare\r | |
67 | @param[in] Buffer2 pointer to second DevicePath to compare\r | |
68 | \r | |
69 | @retval 0 Buffer1 equal to Buffer2\r | |
70 | @return < 0 Buffer1 is less than Buffer2\r | |
71 | @return > 0 Buffer1 is greater than Buffer2 \r | |
72 | **/\r | |
73 | INTN\r | |
74 | DevicePathCompare (\r | |
75 | IN VOID *Buffer1,\r | |
76 | IN VOID *Buffer2\r | |
77 | );\r | |
4983ca93 | 78 | #endif //__SORT_LIB_H__\r |