FreeBSD/Linux Kernel Cross Reference
sys/netatalk/ddp_pcb.h

     /*-
      * Copyright (c) 2004 Robert N. M. Watson
      * 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
     *
     * Copyright (c) 1990, 1994 Regents of The University of Michigan.
     * All Rights Reserved.
     *
     * Permission to use, copy, modify, and distribute this software and
     * its documentation for any purpose and without fee is hereby granted,
     * provided that the above copyright notice appears in all copies and
     * that both that copyright notice and this permission notice appear
     * in supporting documentation, and that the name of The University
     * of Michigan not be used in advertising or publicity pertaining to
     * distribution of the software without specific, written prior
     * permission. This software is supplied as is without expressed or
     * implied warranties of any kind.
     *
     * This product includes software developed by the University of
     * California, Berkeley and its contributors.
     *
     *      Research Systems Unix Group
     *      The University of Michigan
     *      c/o Wesley Craig
     *      535 W. William Street
     *      Ann Arbor, Michigan
     *      +1-313-764-2278
     *      netatalk@umich.edu
     *
     * $FreeBSD$
     */
    
    #ifndef _NETATALK_DDP_PCB_H_
    #define _NETATALK_DDP_PCB_H_
    
    int     at_pcballoc(struct socket *so);
    int     at_pcbconnect(struct ddpcb *ddp, struct sockaddr *addr, 
                struct thread *td);
    void    at_pcbdetach(struct socket *so, struct ddpcb *ddp);
    void    at_pcbdisconnect(struct ddpcb *ddp);
    int     at_pcbsetaddr(struct ddpcb *ddp, struct sockaddr *addr,
                struct thread *td);
    void    at_sockaddr(struct ddpcb *ddp, struct sockaddr **addr);
    
    /* Lock macros for per-pcb locks. */
    #define DDP_LOCK_INIT(ddp)      mtx_init(&(ddp)->ddp_mtx, "ddp_mtx",    \
                                        NULL, MTX_DEF)
    #define DDP_LOCK_DESTROY(ddp)   mtx_destroy(&(ddp)->ddp_mtx)
    #define DDP_LOCK(ddp)           mtx_lock(&(ddp)->ddp_mtx)
    #define DDP_UNLOCK(ddp)         mtx_unlock(&(ddp)->ddp_mtx)
    #define DDP_LOCK_ASSERT(ddp)    mtx_assert(&(ddp)->ddp_mtx, MA_OWNED)
    
    /* Lock macros for global pcb list lock. */
    #define DDP_LIST_LOCK_INIT()    mtx_init(&ddp_list_mtx, "ddp_list_mtx", \
                                        NULL, MTX_DEF)
    #define DDP_LIST_LOCK_DESTROY() mtx_destroy(&ddp_list_mtx)
    #define DDP_LIST_XLOCK()        mtx_lock(&ddp_list_mtx)
    #define DDP_LIST_XUNLOCK()      mtx_unlock(&ddp_list_mtx)
    #define DDP_LIST_XLOCK_ASSERT() mtx_assert(&ddp_list_mtx, MA_OWNED)
    #define DDP_LIST_SLOCK()        mtx_lock(&ddp_list_mtx)
    #define DDP_LIST_SUNLOCK()      mtx_unlock(&ddp_list_mtx)
    #define DDP_LIST_SLOCK_ASSERT() mtx_assert(&ddp_list_mtx, MA_OWNED)
    
    #endif /* !_NETATALK_DDP_PCB_H_ */

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