sys/netisdn/i4b_mbuf.h

   1 /*
   2  * Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  23  * SUCH DAMAGE.
  24  *
  25  *---------------------------------------------------------------------------
  26  *
  27  *      i4b - mbuf handling support routines
  28  *      --------------------------------------
  29  *
  30  *      $Id: i4b_mbuf.h,v 1.3 2005/12/10 23:51:50 elad Exp $
  31  *
  32  * $FreeBSD$
  33  *
  34  *      last edit-date: [Fri Mar  3 14:30:09 2000]
  35  *
  36  *---------------------------------------------------------------------------*/
  37
  38 #ifndef _NETISDN_I4B_MBUF_H_
  39 #define _NETISDN_I4B_MBUF_H_
  40
  41 /* layer 1 / layer 2 comunication: 3rd ph_data_req parameter */
  42 #define MBUF_DONTFREE   0
  43 #define MBUF_FREE       1
  44
  45 #define IF_QEMPTY(ifq)  ((ifq)->ifq_len == 0)
  46
  47 struct mbuf *i4b_Dgetmbuf( int );
  48 void i4b_Dfreembuf( struct mbuf *m );
  49 void i4b_Dcleanifq( struct ifqueue * );
  50
  51 struct mbuf *i4b_Bgetmbuf( int );
  52 void i4b_Bfreembuf( struct mbuf *m );
  53 void i4b_Bcleanifq( struct ifqueue * );
  54
  55 #endif /* !_NETISDN_I4B_MBUF_H_ */
  56
  57 /* EOF */