keyvalq_struct.h revision 290001 
1/*
2 * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
3 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 *    derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27#ifndef EVENT2_KEYVALQ_STRUCT_H_INCLUDED_
28#define EVENT2_KEYVALQ_STRUCT_H_INCLUDED_
29
30#ifdef __cplusplus
31extern "C" {
32#endif
33
34/* Fix so that people don't have to run with <sys/queue.h> */
35/* XXXX This code is duplicated with event_struct.h */
36#ifndef TAILQ_ENTRY
37#define EVENT_DEFINED_TQENTRY_
38#define TAILQ_ENTRY(type)						\
39struct {								\
40	struct type *tqe_next;	/* next element */			\
41	struct type **tqe_prev;	/* address of previous next element */	\
42}
43#endif /* !TAILQ_ENTRY */
44
45#ifndef TAILQ_HEAD
46#define EVENT_DEFINED_TQHEAD_
47#define TAILQ_HEAD(name, type)			\
48struct name {					\
49	struct type *tqh_first;			\
50	struct type **tqh_last;			\
51}
52#endif
53
54/*
55 * Key-Value pairs.  Can be used for HTTP headers but also for
56 * query argument parsing.
57 */
58struct evkeyval {
59	TAILQ_ENTRY(evkeyval) next;
60
61	char *key;
62	char *value;
63};
64
65TAILQ_HEAD (evkeyvalq, evkeyval);
66
67/* XXXX This code is duplicated with event_struct.h */
68#ifdef EVENT_DEFINED_TQENTRY_
69#undef TAILQ_ENTRY
70#endif
71
72#ifdef EVENT_DEFINED_TQHEAD_
73#undef TAILQ_HEAD
74#endif
75
76#ifdef __cplusplus
77}
78#endif
79
80#endif
81