external/bsd/libevent/dist/include/event2/keyvalq_struct.h

   1 /*      $NetBSD: keyvalq_struct.h,v 1.1.1.2 2015/01/29 06:38:27 spz Exp $       */
   2 /*      $NetBSD: keyvalq_struct.h,v 1.1.1.2 2015/01/29 06:38:27 spz Exp $       */
   3 /*
   4  * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
   5  * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. The name of the author may not be used to endorse or promote products
  16  *    derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29 #ifndef _EVENT2_EVENT_KEYVALQ_STRUCT_H_
  30 #define _EVENT2_EVENT_KEYVALQ_STRUCT_H_
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 /* Fix so that people don't have to run with <sys/queue.h> */
  37 /* XXXX This code is duplicated with event_struct.h */
  38 #ifndef TAILQ_ENTRY
  39 #define _EVENT_DEFINED_TQENTRY
  40 #define TAILQ_ENTRY(type)                                               \
  41 struct {                                                                \
  42         struct type *tqe_next;  /* next element */                      \
  43         struct type **tqe_prev; /* address of previous next element */  \
  44 }
  45 #endif /* !TAILQ_ENTRY */
  46
  47 #ifndef TAILQ_HEAD
  48 #define _EVENT_DEFINED_TQHEAD
  49 #define TAILQ_HEAD(name, type)                  \
  50 struct name {                                   \
  51         struct type *tqh_first;                 \
  52         struct type **tqh_last;                 \
  53 }
  54 #endif
  55
  56 /*
  57  * Key-Value pairs.  Can be used for HTTP headers but also for
  58  * query argument parsing.
  59  */
  60 struct evkeyval {
  61         TAILQ_ENTRY(evkeyval) next;
  62
  63         char *key;
  64         char *value;
  65 };
  66
  67 TAILQ_HEAD (evkeyvalq, evkeyval);
  68
  69 /* XXXX This code is duplicated with event_struct.h */
  70 #ifdef _EVENT_DEFINED_TQENTRY
  71 #undef TAILQ_ENTRY
  72 #endif
  73
  74 #ifdef _EVENT_DEFINED_TQHEAD
  75 #undef TAILQ_HEAD
  76 #endif
  77
  78 #ifdef __cplusplus
  79 }
  80 #endif
  81
  82 #endif