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Dir : //usr/include/event2/keyvalq_struct.h

/*
 * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
 *
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */
#ifndef EVENT2_KEYVALQ_STRUCT_H_INCLUDED_
#define EVENT2_KEYVALQ_STRUCT_H_INCLUDED_

#ifdef __cplusplus
extern "C" {
#endif

/* Fix so that people don't have to run with <sys/queue.h> */
/* XXXX This code is duplicated with event_struct.h */
#ifndef TAILQ_ENTRY
#define EVENT_DEFINED_TQENTRY_
#define TAILQ_ENTRY(type)						\
struct {								\
	struct type *tqe_next;	/* next element */			\
	struct type **tqe_prev;	/* address of previous next element */	\
}
#endif /* !TAILQ_ENTRY */

#ifndef TAILQ_HEAD
#define EVENT_DEFINED_TQHEAD_
#define TAILQ_HEAD(name, type)			\
struct name {					\
	struct type *tqh_first;			\
	struct type **tqh_last;			\
}
#endif

/*
 * Key-Value pairs.  Can be used for HTTP headers but also for
 * query argument parsing.
 */
struct evkeyval {
	TAILQ_ENTRY(evkeyval) next;

	char *key;
	char *value;
};

TAILQ_HEAD (evkeyvalq, evkeyval);

/* XXXX This code is duplicated with event_struct.h */
#ifdef EVENT_DEFINED_TQENTRY_
#undef TAILQ_ENTRY
#endif

#ifdef EVENT_DEFINED_TQHEAD_
#undef TAILQ_HEAD
#endif

#ifdef __cplusplus
}
#endif

#endif