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: head/sys/net80211/ieee80211_ageq.h 195379 2009-07-05 18:17:37Z sam $ 26 */ 27 #ifndef _NET80211_IEEE80211_STAGEQ_H_ 28 #define _NET80211_IEEE80211_STAGEQ_H_ 29 30 struct ieee80211_node; 31 struct mbuf; 32 33 struct ieee80211_ageq { 34 int aq_len; /* # items on queue */ 35 int aq_maxlen; /* max queue length */ 36 int aq_drops; /* frames dropped */ 37 struct mbuf *aq_head; /* frames linked w/ m_nextpkt */ 38 struct mbuf *aq_tail; /* last frame in queue */ 39 }; 40 41 void ieee80211_ageq_init(struct ieee80211_ageq *, int maxlen, 42 const char *name); 43 void ieee80211_ageq_cleanup(struct ieee80211_ageq *); 44 void ieee80211_ageq_mfree(struct mbuf *); 45 int ieee80211_ageq_append(struct ieee80211_ageq *, struct mbuf *, 46 int age); 47 void ieee80211_ageq_drain(struct ieee80211_ageq *); 48 void ieee80211_ageq_drain_node(struct ieee80211_ageq *, 49 struct ieee80211_node *); 50 struct mbuf *ieee80211_ageq_age(struct ieee80211_ageq *, int quanta); 51 struct mbuf *ieee80211_ageq_remove(struct ieee80211_ageq *, 52 struct ieee80211_node *match); 53 #endif /* _NET80211_IEEE80211_STAGEQ_H_ */ 54