xref: /freebsd/usr.bin/sort/sort.h (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a)
1 
2 /*-
3  * SPDX-License-Identifier: BSD-2-Clause
4  *
5  * Copyright (C) 2009 Gabor Kovesdan <gabor@FreeBSD.org>
6  * Copyright (C) 2012 Oleg Moskalenko <mom040267@gmail.com>
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #if !defined(__BSD_SORT_H__)
32 #define	__BSD_SORT_H__
33 
34 #include <errno.h>
35 #include <stdbool.h>
36 #include <stdio.h>
37 #include <sysexits.h>
38 #include <wchar.h>
39 
40 #include <sys/types.h>
41 #include <md5.h>
42 
43 #define	VERSION	"2.3-FreeBSD"
44 
45 #define	getstr(n)	 nlsstr[n]
46 
47 extern const char *nlsstr[];
48 
49 #if defined(SORT_THREADS)
50 #define	MT_SORT_THRESHOLD (10000)
51 extern unsigned int ncpu;
52 extern size_t nthreads;
53 #endif
54 
55 /*
56  * If true, we output some debug information.
57  */
58 extern bool debug_sort;
59 
60 /*
61  * MD5 context for random hash function
62  */
63 extern MD5_CTX md5_ctx;
64 
65 /*
66  * sort.c
67  */
68 
69 /*
70  * This structure holds main sort options which are NOT affecting the sort ordering.
71  */
72 struct sort_opts
73 {
74 	wint_t		field_sep;
75 	int		sort_method;
76 	bool		cflag;
77 	bool		csilentflag;
78 	bool		kflag;
79 	bool		mflag;
80 	bool		sflag;
81 	bool		uflag;
82 	bool		zflag;
83 	bool		tflag;
84 	bool		complex_sort;
85 };
86 
87 /*
88  * Key value structure forward declaration
89  */
90 struct key_value;
91 
92 /*
93  * Cmp function
94  */
95 typedef int (*cmpcoll_t)(struct key_value *kv1, struct key_value *kv2, size_t offset);
96 
97 /*
98  * This structure holds "sort modifiers" - options which are affecting the sort ordering.
99  */
100 struct sort_mods
101 {
102 	cmpcoll_t	func;
103 	bool		bflag;
104 	bool		dflag;
105 	bool		fflag;
106 	bool		gflag;
107 	bool		iflag;
108 	bool		Mflag;
109 	bool		nflag;
110 	bool		rflag;
111 	bool		Rflag;
112 	bool		Vflag;
113 	bool		hflag;
114 };
115 
116 extern bool need_hint;
117 
118 extern struct sort_opts sort_opts_vals;
119 
120 extern struct sort_mods * const default_sort_mods;
121 
122 /*
123  * Cached value of MB_CUR_MAX. Because MB_CUR_MAX is used often throughout the program,
124  * this avoids frequent calls to __mb_cur_max.
125  */
126 extern size_t mb_cur_max;
127 
128 #endif /* __BSD_SORT_H__ */
129