1/*-
2 * Copyright (c) 2009 Sam Leffler, Errno Consulting
3 * All rights reserved.
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * $FreeBSD$
26 */
27#ifndef _NET80211_IEEE80211_STAGEQ_H_
28#define _NET80211_IEEE80211_STAGEQ_H_
29
30struct ieee80211_node;
31struct mbuf;
32
33struct ieee80211_ageq {
34	ieee80211_ageq_lock_t	aq_lock;
35	int			aq_len;		/* # items on queue */
36	int			aq_maxlen;	/* max queue length */
37	int			aq_drops;	/* frames dropped */
38	struct mbuf		*aq_head;	/* frames linked w/ m_nextpkt */
39	struct mbuf		*aq_tail;	/* last frame in queue */
40};
41
42void	ieee80211_ageq_init(struct ieee80211_ageq *, int maxlen,
43	    const char *name);
44void	ieee80211_ageq_cleanup(struct ieee80211_ageq *);
45void	ieee80211_ageq_mfree(struct mbuf *);
46int	ieee80211_ageq_append(struct ieee80211_ageq *, struct mbuf *,
47	    int age);
48void	ieee80211_ageq_drain(struct ieee80211_ageq *);
49void	ieee80211_ageq_drain_node(struct ieee80211_ageq *,
50	    struct ieee80211_node *);
51struct mbuf *ieee80211_ageq_age(struct ieee80211_ageq *, int quanta);
52struct mbuf *ieee80211_ageq_remove(struct ieee80211_ageq *,
53	    struct ieee80211_node *match);
54#endif /* _NET80211_IEEE80211_STAGEQ_H_ */
55