| 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. All advertising materials mentioning features or use of this software |
| 14 | * must display the following acknowledgement: |
| 15 | * This product includes software developed by the University of |
| 16 | * California, Berkeley and its contributors. |
| 17 | * 4. Neither the name of the University nor the names of its contributors |
| 18 | * may be used to endorse or promote products derived from this software |
| 19 | * without specific prior written permission. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 31 | * SUCH DAMAGE. |
| 32 | * |
| 33 | * @(#)tcp_timer.h 8.1 (Berkeley) 6/10/93 |
| 34 | * $FreeBSD: src/sys/netinet/tcp_timer.h,v 1.18.2.1 2002/08/16 22:16:39 dillon Exp $ |
| 35 | * $DragonFly: src/sys/netinet/tcp_timer.h,v 1.3 2003/08/23 11:18:00 rob Exp $ |
| 36 | */ |
| 37 | |
| 38 | #ifndef _NETINET_TCP_TIMER2_H_ |
| 39 | #define _NETINET_TCP_TIMER2_H_ |
| 40 | |
| 41 | #ifdef _KERNEL |
| 42 | |
| 43 | #ifndef _SYS_THREAD2_H_ |
| 44 | #include <sys/thread2.h> |
| 45 | #endif |
| 46 | |
| 47 | #ifndef _SYS_CALLOUT_H_ |
| 48 | #include <sys/callout.h> |
| 49 | #endif |
| 50 | |
| 51 | #ifndef _NETINET_TCP_VAR_H_ |
| 52 | #include <netinet/tcp_var.h> |
| 53 | #endif |
| 54 | |
| 55 | #ifndef _NETINET_TCP_TIMER_H_ |
| 56 | #include <netinet/tcp_timer.h> |
| 57 | #endif |
| 58 | |
| 59 | static __inline void |
| 60 | tcp_callout_stop(struct tcpcb *_tp, struct tcp_callout *_tc) |
| 61 | { |
| 62 | crit_enter(); |
| 63 | callout_stop(&_tc->tc_callout); |
| 64 | _tp->tt_msg->tt_tasks &= ~_tc->tc_task; |
| 65 | _tp->tt_msg->tt_running_tasks &= ~_tc->tc_task; |
| 66 | crit_exit(); |
| 67 | } |
| 68 | |
| 69 | static __inline void |
| 70 | tcp_callout_reset(struct tcpcb *_tp, struct tcp_callout *_tc, int _to_ticks, |
| 71 | void (*_func)(void *)) |
| 72 | { |
| 73 | crit_enter(); |
| 74 | callout_reset(&_tc->tc_callout, _to_ticks, _func, _tp); |
| 75 | _tp->tt_msg->tt_tasks &= ~_tc->tc_task; |
| 76 | _tp->tt_msg->tt_running_tasks &= ~_tc->tc_task; |
| 77 | crit_exit(); |
| 78 | } |
| 79 | |
| 80 | static __inline int |
| 81 | tcp_callout_active(struct tcpcb *_tp, struct tcp_callout *_tc) |
| 82 | { |
| 83 | int _act; |
| 84 | |
| 85 | crit_enter(); |
| 86 | _act = callout_active(&_tc->tc_callout); |
| 87 | if (!_act) { |
| 88 | _act = (_tp->tt_msg->tt_tasks | |
| 89 | _tp->tt_msg->tt_running_tasks) & _tc->tc_task; |
| 90 | } |
| 91 | crit_exit(); |
| 92 | return _act; |
| 93 | } |
| 94 | |
| 95 | static __inline int |
| 96 | tcp_callout_pending(struct tcpcb *_tp __unused, struct tcp_callout *_tc) |
| 97 | { |
| 98 | return callout_pending(&_tc->tc_callout); |
| 99 | } |
| 100 | |
| 101 | #endif /* !_KERNEL */ |
| 102 | |
| 103 | #endif /* _NETINET_TCP_TIMER2_H_ */ |