summaryrefslogtreecommitdiffstats
path: root/usr.bin/make/lst.h
blob: 9c18fb30730058d166a7ffc1062db1e9c12a5649 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/*
 * Copyright (c) 1988, 1989, 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 * Copyright (c) 1988, 1989 by Adam de Boor
 * Copyright (c) 1989 by Berkeley Softworks
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Adam de Boor.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)lst.h	8.2 (Berkeley) 4/28/95
 * $FreeBSD$
 */

/*-
 * lst.h --
 *	Header for using the list library
 */
#ifndef _LST_H_
#define _LST_H_

#include	<sys/param.h>
#include	<stdlib.h>
#include	"sprite.h"

/*
 * basic typedef. This is what the Lst_ functions handle
 */

typedef	struct	Lst	*Lst;
typedef	struct	LstNode	*LstNode;

/*
 * NOFREE can be used as the freeProc to Lst_Destroy when the elements are
 *	not to be freed.
 * NOCOPY performs similarly when given as the copyProc to Lst_Duplicate.
 */
#define NOFREE		((void (*)(void *)) 0)
#define NOCOPY		((void * (*)(void *)) 0)

#define LST_CONCNEW	0   /* create new LstNode's when using Lst_Concat */
#define LST_CONCLINK	1   /* relink LstNode's when using Lst_Concat */

/*
 * Creation/destruction functions
 */
/* Create a new list */
Lst		Lst_Init(Boolean);
/* Duplicate an existing list */
Lst		Lst_Duplicate(Lst, void * (*)(void *));
/* Destroy an old one */
void		Lst_Destroy(Lst, void (*)(void *));
/* True if list is empty */
Boolean		Lst_IsEmpty(Lst);

/*
 * Functions to modify a list
 */
/* Insert an element before another */
ReturnStatus	Lst_Insert(Lst, LstNode, void *);
/* Insert an element after another */
ReturnStatus	Lst_Append(Lst, LstNode, void *);
/* Place an element at the front of a lst. */
ReturnStatus	Lst_AtFront(Lst, void *);
/* Place an element at the end of a lst. */
ReturnStatus	Lst_AtEnd(Lst, void *);
/* Remove an element */
ReturnStatus	Lst_Remove(Lst, LstNode);
/* Replace a node with a new value */
ReturnStatus	Lst_Replace(LstNode, void *);
/* Concatenate two lists */
ReturnStatus	Lst_Concat(Lst, Lst, int);

/*
 * Node-specific functions
 */
/* Return first element in list */
LstNode		Lst_First(Lst);
/* Return last element in list */
LstNode		Lst_Last(Lst);
/* Return successor to given element */
LstNode		Lst_Succ(LstNode);
/* Get datum from LstNode */
void *	Lst_Datum(LstNode);

/*
 * Functions for entire lists
 */
/* Find an element in a list */
LstNode		Lst_Find(Lst, void *, int (*)(void *, void *));
/* Find an element starting from somewhere */
LstNode		Lst_FindFrom(Lst, LstNode, void *, int (*cProc)(void *, void *));
/*
 * See if the given datum is on the list. Returns the LstNode containing
 * the datum
 */
LstNode		Lst_Member(Lst, void *);
/* Apply a function to all elements of a lst */
void		Lst_ForEach(Lst, int (*)(void *, void *), void *);
/*
 * Apply a function to all elements of a lst starting from a certain point.
 * If the list is circular, the application will wrap around to the
 * beginning of the list again.
 */
void		Lst_ForEachFrom(Lst, LstNode, int (*)(void *, void *), void *);
/*
 * these functions are for dealing with a list as a table, of sorts.
 * An idea of the "current element" is kept and used by all the functions
 * between Lst_Open() and Lst_Close().
 */
/* Open the list */
ReturnStatus	Lst_Open(Lst);
/* Next element please */
LstNode		Lst_Next(Lst);
/* Done yet? */
Boolean		Lst_IsAtEnd(Lst);
/* Finish table access */
void		Lst_Close(Lst);

/*
 * for using the list as a queue
 */
/* Place an element at tail of queue */
ReturnStatus	Lst_EnQueue(Lst, void *);
/* Remove an element from head of queue */
void *	Lst_DeQueue(Lst);

#endif /* _LST_H_ */
OpenPOWER on IntegriCloud