xref: /freebsd-src/contrib/ntp/sntp/libevent/include/event2/keyvalq_struct.h (revision 416ba5c74546f32a993436a99516d35008e9f384)
1*2b15cb3dSCy Schubert /*
2*2b15cb3dSCy Schubert  * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
3*2b15cb3dSCy Schubert  * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
4*2b15cb3dSCy Schubert  *
5*2b15cb3dSCy Schubert  * Redistribution and use in source and binary forms, with or without
6*2b15cb3dSCy Schubert  * modification, are permitted provided that the following conditions
7*2b15cb3dSCy Schubert  * are met:
8*2b15cb3dSCy Schubert  * 1. Redistributions of source code must retain the above copyright
9*2b15cb3dSCy Schubert  *    notice, this list of conditions and the following disclaimer.
10*2b15cb3dSCy Schubert  * 2. Redistributions in binary form must reproduce the above copyright
11*2b15cb3dSCy Schubert  *    notice, this list of conditions and the following disclaimer in the
12*2b15cb3dSCy Schubert  *    documentation and/or other materials provided with the distribution.
13*2b15cb3dSCy Schubert  * 3. The name of the author may not be used to endorse or promote products
14*2b15cb3dSCy Schubert  *    derived from this software without specific prior written permission.
15*2b15cb3dSCy Schubert  *
16*2b15cb3dSCy Schubert  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17*2b15cb3dSCy Schubert  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18*2b15cb3dSCy Schubert  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19*2b15cb3dSCy Schubert  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20*2b15cb3dSCy Schubert  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21*2b15cb3dSCy Schubert  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22*2b15cb3dSCy Schubert  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23*2b15cb3dSCy Schubert  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24*2b15cb3dSCy Schubert  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25*2b15cb3dSCy Schubert  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*2b15cb3dSCy Schubert  */
27*2b15cb3dSCy Schubert #ifndef EVENT2_KEYVALQ_STRUCT_H_INCLUDED_
28*2b15cb3dSCy Schubert #define EVENT2_KEYVALQ_STRUCT_H_INCLUDED_
29*2b15cb3dSCy Schubert 
30*2b15cb3dSCy Schubert #ifdef __cplusplus
31*2b15cb3dSCy Schubert extern "C" {
32*2b15cb3dSCy Schubert #endif
33*2b15cb3dSCy Schubert 
34*2b15cb3dSCy Schubert /* Fix so that people don't have to run with <sys/queue.h> */
35*2b15cb3dSCy Schubert /* XXXX This code is duplicated with event_struct.h */
36*2b15cb3dSCy Schubert #ifndef TAILQ_ENTRY
37*2b15cb3dSCy Schubert #define EVENT_DEFINED_TQENTRY_
38*2b15cb3dSCy Schubert #define TAILQ_ENTRY(type)						\
39*2b15cb3dSCy Schubert struct {								\
40*2b15cb3dSCy Schubert 	struct type *tqe_next;	/* next element */			\
41*2b15cb3dSCy Schubert 	struct type **tqe_prev;	/* address of previous next element */	\
42*2b15cb3dSCy Schubert }
43*2b15cb3dSCy Schubert #endif /* !TAILQ_ENTRY */
44*2b15cb3dSCy Schubert 
45*2b15cb3dSCy Schubert #ifndef TAILQ_HEAD
46*2b15cb3dSCy Schubert #define EVENT_DEFINED_TQHEAD_
47*2b15cb3dSCy Schubert #define TAILQ_HEAD(name, type)			\
48*2b15cb3dSCy Schubert struct name {					\
49*2b15cb3dSCy Schubert 	struct type *tqh_first;			\
50*2b15cb3dSCy Schubert 	struct type **tqh_last;			\
51*2b15cb3dSCy Schubert }
52*2b15cb3dSCy Schubert #endif
53*2b15cb3dSCy Schubert 
54*2b15cb3dSCy Schubert /*
55*2b15cb3dSCy Schubert  * Key-Value pairs.  Can be used for HTTP headers but also for
56*2b15cb3dSCy Schubert  * query argument parsing.
57*2b15cb3dSCy Schubert  */
58*2b15cb3dSCy Schubert struct evkeyval {
59*2b15cb3dSCy Schubert 	TAILQ_ENTRY(evkeyval) next;
60*2b15cb3dSCy Schubert 
61*2b15cb3dSCy Schubert 	char *key;
62*2b15cb3dSCy Schubert 	char *value;
63*2b15cb3dSCy Schubert };
64*2b15cb3dSCy Schubert 
65*2b15cb3dSCy Schubert TAILQ_HEAD (evkeyvalq, evkeyval);
66*2b15cb3dSCy Schubert 
67*2b15cb3dSCy Schubert /* XXXX This code is duplicated with event_struct.h */
68*2b15cb3dSCy Schubert #ifdef EVENT_DEFINED_TQENTRY_
69*2b15cb3dSCy Schubert #undef TAILQ_ENTRY
70*2b15cb3dSCy Schubert #endif
71*2b15cb3dSCy Schubert 
72*2b15cb3dSCy Schubert #ifdef EVENT_DEFINED_TQHEAD_
73*2b15cb3dSCy Schubert #undef TAILQ_HEAD
74*2b15cb3dSCy Schubert #endif
75*2b15cb3dSCy Schubert 
76*2b15cb3dSCy Schubert #ifdef __cplusplus
77*2b15cb3dSCy Schubert }
78*2b15cb3dSCy Schubert #endif
79*2b15cb3dSCy Schubert 
80*2b15cb3dSCy Schubert #endif
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