1 /* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. 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 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)tcp_timer.h 8.1 (Berkeley) 6/10/93 30 * $FreeBSD: src/sys/netinet/tcp_timer.h,v 1.18.2.1 2002/08/16 22:16:39 dillon Exp $ 31 * $DragonFly: src/sys/netinet/tcp_timer.h,v 1.3 2003/08/23 11:18:00 rob Exp $ 32 */ 33 34 #ifndef _NETINET_TCP_TIMER2_H_ 35 #define _NETINET_TCP_TIMER2_H_ 36 37 #ifdef _KERNEL 38 39 #ifndef _SYS_PARAM_H_ 40 #include <sys/param.h> 41 #endif 42 43 #ifndef _SYS_SYSTM_H_ 44 #include <sys/systm.h> 45 #endif 46 47 #ifndef _SYS_THREAD2_H_ 48 #include <sys/thread2.h> 49 #endif 50 51 #ifndef _SYS_CALLOUT_H_ 52 #include <sys/callout.h> 53 #endif 54 55 #ifndef _NETINET_TCP_VAR_H_ 56 #include <netinet/tcp_var.h> 57 #endif 58 59 #ifndef _NETINET_TCP_TIMER_H_ 60 #include <netinet/tcp_timer.h> 61 #endif 62 63 static __inline void 64 tcp_callout_stop(struct tcpcb *_tp, struct tcp_callout *_tc) 65 { 66 KKASSERT(_tp->tt_msg->tt_cpuid == mycpuid); 67 68 crit_enter(); 69 callout_stop(&_tc->tc_callout); 70 _tp->tt_msg->tt_tasks &= ~_tc->tc_task; 71 _tp->tt_msg->tt_running_tasks &= ~_tc->tc_task; 72 crit_exit(); 73 } 74 75 static __inline void 76 tcp_callout_reset(struct tcpcb *_tp, struct tcp_callout *_tc, int _to_ticks, 77 void (*_func)(void *)) 78 { 79 KKASSERT(_tp->tt_msg->tt_cpuid == mycpuid); 80 81 crit_enter(); 82 callout_reset(&_tc->tc_callout, _to_ticks, _func, _tp); 83 _tp->tt_msg->tt_tasks &= ~_tc->tc_task; 84 _tp->tt_msg->tt_running_tasks &= ~_tc->tc_task; 85 crit_exit(); 86 } 87 88 static __inline int 89 tcp_callout_active(struct tcpcb *_tp, struct tcp_callout *_tc) 90 { 91 int _act; 92 93 KKASSERT(_tp->tt_msg->tt_cpuid == mycpuid); 94 95 crit_enter(); 96 _act = callout_active(&_tc->tc_callout); 97 if (!_act) { 98 _act = (_tp->tt_msg->tt_tasks | 99 _tp->tt_msg->tt_running_tasks) & _tc->tc_task; 100 } 101 crit_exit(); 102 return _act; 103 } 104 105 static __inline int 106 tcp_callout_pending(struct tcpcb *_tp, struct tcp_callout *_tc) 107 { 108 KKASSERT(_tp->tt_msg->tt_cpuid == mycpuid); 109 110 return callout_pending(&_tc->tc_callout); 111 } 112 113 #endif /* !_KERNEL */ 114 115 #endif /* _NETINET_TCP_TIMER2_H_ */ 116