FreeBSD/Linux Kernel Cross Reference
sys/netinet/tcp_timer2.h

     /*
      * Copyright (c) 1982, 1986, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 4. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)tcp_timer.h 8.1 (Berkeley) 6/10/93
     * $FreeBSD: src/sys/netinet/tcp_timer.h,v 1.18.2.1 2002/08/16 22:16:39 dillon Exp $
     * $DragonFly: src/sys/netinet/tcp_timer.h,v 1.3 2003/08/23 11:18:00 rob Exp $
     */
    
    #ifndef _NETINET_TCP_TIMER2_H_
    #define _NETINET_TCP_TIMER2_H_
    
    #ifdef _KERNEL
    
    #ifndef _SYS_PARAM_H_
    #include <sys/param.h>
    #endif
    
    #ifndef _SYS_SYSTM_H_
    #include <sys/systm.h>
    #endif
    
    #ifndef _SYS_THREAD2_H_
    #include <sys/thread2.h>
    #endif
    
    #ifndef _SYS_CALLOUT_H_
    #include <sys/callout.h>
    #endif
    
    #ifndef _NETINET_TCP_VAR_H_
    #include <netinet/tcp_var.h>
    #endif
    
    #ifndef _NETINET_TCP_TIMER_H_
    #include <netinet/tcp_timer.h>
    #endif
    
    static __inline void
    tcp_callout_stop(struct tcpcb *_tp, struct tcp_callout *_tc)
    {
            KKASSERT(_tp->tt_msg->tt_cpuid == mycpuid);
    
            crit_enter();
            callout_stop(&_tc->tc_callout);
            _tp->tt_msg->tt_tasks &= ~_tc->tc_task;
            _tp->tt_msg->tt_running_tasks &= ~_tc->tc_task;
            crit_exit();
    }
    
    static __inline void
    tcp_callout_reset(struct tcpcb *_tp, struct tcp_callout *_tc, int _to_ticks,
                      void (*_func)(void *))
    {
            KKASSERT(_tp->tt_msg->tt_cpuid == mycpuid);
    
            crit_enter();
            callout_reset(&_tc->tc_callout, _to_ticks, _func, _tp);
            _tp->tt_msg->tt_tasks &= ~_tc->tc_task;
            _tp->tt_msg->tt_running_tasks &= ~_tc->tc_task;
            crit_exit();
    }
    
    static __inline int
    tcp_callout_active(struct tcpcb *_tp, struct tcp_callout *_tc)
    {
            int _act;
    
            KKASSERT(_tp->tt_msg->tt_cpuid == mycpuid);
    
            crit_enter();
           _act = callout_active(&_tc->tc_callout);
           if (!_act) {
                   _act = (_tp->tt_msg->tt_tasks |
                           _tp->tt_msg->tt_running_tasks) & _tc->tc_task;
           }
           crit_exit();
           return _act;
   }
   
   static __inline int
   tcp_callout_pending(struct tcpcb *_tp, struct tcp_callout *_tc)
   {
           KKASSERT(_tp->tt_msg->tt_cpuid == mycpuid);
   
           return callout_pending(&_tc->tc_callout);
   }
   
   #endif  /* !_KERNEL */
   
   #endif  /* _NETINET_TCP_TIMER2_H_ */

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