| tcp_timer.c (169309) | tcp_timer.c (169454) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995 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 --- 13 unchanged lines hidden (view full) --- 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.c 8.2 (Berkeley) 5/24/95 | 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995 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 --- 13 unchanged lines hidden (view full) --- 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.c 8.2 (Berkeley) 5/24/95 |
| 30 * $FreeBSD: head/sys/netinet/tcp_timer.c 169309 2007-05-06 13:38:25Z andre $ | 30 * $FreeBSD: head/sys/netinet/tcp_timer.c 169454 2007-05-10 15:58:48Z rwatson $ |
| 31 */ 32 33#include "opt_inet6.h" 34#include "opt_tcpdebug.h" 35 36#include <sys/param.h> 37#include <sys/kernel.h> 38#include <sys/ktr.h> --- 84 unchanged lines hidden (view full) --- 123static int tcp_timer_rexmt(struct tcpcb *, struct inpcb *); 124 125/* 126 * Tcp protocol timeout routine called every 500 ms. 127 * Updates timestamps used for TCP 128 * causes finite state machine actions if timers expire. 129 */ 130void | 31 */ 32 33#include "opt_inet6.h" 34#include "opt_tcpdebug.h" 35 36#include <sys/param.h> 37#include <sys/kernel.h> 38#include <sys/ktr.h> --- 84 unchanged lines hidden (view full) --- 123static int tcp_timer_rexmt(struct tcpcb *, struct inpcb *); 124 125/* 126 * Tcp protocol timeout routine called every 500 ms. 127 * Updates timestamps used for TCP 128 * causes finite state machine actions if timers expire. 129 */ 130void |
| 131tcp_slowtimo() | 131tcp_slowtimo(void) |
| 132{ 133 134 tcp_maxidle = tcp_keepcnt * tcp_keepintvl; 135 INP_INFO_WLOCK(&tcbinfo); 136 (void) tcp_timer_2msl_tw(0); 137 INP_INFO_WUNLOCK(&tcbinfo); 138} 139 --- 4 unchanged lines hidden (view full) --- 144 { 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 512, 512, 512 }; 145 146static int tcp_totbackoff = 2559; /* sum of tcp_backoff[] */ 147 148static int tcp_timer_race; 149SYSCTL_INT(_net_inet_tcp, OID_AUTO, timer_race, CTLFLAG_RD, &tcp_timer_race, 150 0, "Count of t_inpcb races on tcp_discardcb"); 151 | 132{ 133 134 tcp_maxidle = tcp_keepcnt * tcp_keepintvl; 135 INP_INFO_WLOCK(&tcbinfo); 136 (void) tcp_timer_2msl_tw(0); 137 INP_INFO_WUNLOCK(&tcbinfo); 138} 139 --- 4 unchanged lines hidden (view full) --- 144 { 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 512, 512, 512 }; 145 146static int tcp_totbackoff = 2559; /* sum of tcp_backoff[] */ 147 148static int tcp_timer_race; 149SYSCTL_INT(_net_inet_tcp, OID_AUTO, timer_race, CTLFLAG_RD, &tcp_timer_race, 150 0, "Count of t_inpcb races on tcp_discardcb"); 151 |
| 152 | |
| 153void 154tcp_timer_activate(struct tcpcb *tp, int timer_type, u_int delta) 155{ 156 struct inpcb *inp = tp->t_inpcb; 157 struct tcp_timer *tt = tp->t_timers; 158 int tick = ticks; /* Stable time base. */ 159 int next = delta ? tick + delta : 0; 160 --- 251 unchanged lines hidden (view full) --- 412 413 if (tp) 414 INP_UNLOCK(inp); /* CALLOUT_RETURNUNLOCKED */ 415 416 INP_INFO_WUNLOCK(&tcbinfo); 417 return; 418} 419 | 152void 153tcp_timer_activate(struct tcpcb *tp, int timer_type, u_int delta) 154{ 155 struct inpcb *inp = tp->t_inpcb; 156 struct tcp_timer *tt = tp->t_timers; 157 int tick = ticks; /* Stable time base. */ 158 int next = delta ? tick + delta : 0; 159 --- 251 unchanged lines hidden (view full) --- 411 412 if (tp) 413 INP_UNLOCK(inp); /* CALLOUT_RETURNUNLOCKED */ 414 415 INP_INFO_WUNLOCK(&tcbinfo); 416 return; 417} 418 |
| 420 | |
| 421/* 422 * TCP timer processing. 423 */ 424static int 425tcp_timer_delack(struct tcpcb *tp, struct inpcb *inp) 426{ 427 428 tp->t_flags |= TF_ACKNOW; --- 313 unchanged lines hidden --- | 419/* 420 * TCP timer processing. 421 */ 422static int 423tcp_timer_delack(struct tcpcb *tp, struct inpcb *inp) 424{ 425 426 tp->t_flags |= TF_ACKNOW; --- 313 unchanged lines hidden --- |