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

     /*      $KAME: sctp_callout.h,v 1.8 2005/01/25 07:35:42 itojun Exp $    */
     /*      $DragonFly: src/sys/netinet/sctp_callout.h,v 1.3 2006/05/20 02:42:12 dillon Exp $       */
     
     #ifndef _NETINET_SCTP_CALLOUT_H_
     #define _NETINET_SCTP_CALLOUT_H_
     
     #ifndef _SYS_QUEUE_H_
     #include <sys/queue.h>
     #endif
    
    /*
     * Copyright (C) 2002, 2003, 2004 Cisco Systems Inc,
     * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
     */
    
    #define _SCTP_NEEDS_CALLOUT_ 1
    
    #ifndef __NetBSD__
    struct callout {
            TAILQ_ENTRY(callout) tqe;
            int     c_time;                         /* ticks to the event */
            void    *c_arg;                         /* function argument */
            void    (*c_func)(void *);              /* function to call */
            int     c_flags;                        /* state of this entry */
    };
    #endif
    #define SCTP_TICKS_PER_FASTTIMO 20              /* we get called about */
                                                    /* every 20ms */
    
    TAILQ_HEAD(calloutlist, callout);
    
    #define CALLOUT_ACTIVE          0x0002 /* callout is currently active */
    #ifndef __NetBSD__
    #define CALLOUT_PENDING         0x0004 /* callout is waiting for timeout */
    #define CALLOUT_FIRED           0x0008 /* it expired */
    #endif
    
    #define callout_active(c)       ((c)->c_flags & CALLOUT_ACTIVE)
    #define callout_deactivate(c)   ((c)->c_flags &= ~CALLOUT_ACTIVE)
    void    callout_init(struct callout *);
    #define callout_pending(c)      ((c)->c_flags & CALLOUT_PENDING)
    
    void    callout_reset(struct callout *, int, void (*)(void *), void *);
    #ifndef __NetBSD__
    int     callout_stop(struct callout *);
    #endif
    #endif

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