The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i4b/include/i4b_mbuf.h

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    1 /*
    2  * Copyright (c) 1997, 2002 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  * $FreeBSD: releng/5.1/sys/i4b/include/i4b_mbuf.h 92487 2002-03-17 09:33:15Z hm $
   31  *
   32  *      last edit-date: [Sat Mar  9 15:58:11 2002]
   33  *
   34  *---------------------------------------------------------------------------*/
   35 
   36 #ifndef _I4B_MBUF_H_
   37 #define _I4B_MBUF_H_
   38 
   39 /* layer 1 / layer 2 comunication: 3rd ph_data_req parameter */
   40 #define MBUF_DONTFREE   0
   41 #define MBUF_FREE       1       
   42 
   43 #define IF_QEMPTY(ifq)  ((ifq)->ifq_len == 0)
   44 
   45 struct mbuf *i4b_Dgetmbuf( int );
   46 void i4b_Dfreembuf( struct mbuf *m );
   47 void i4b_Dcleanifq( struct ifqueue * );
   48 
   49 struct mbuf *i4b_Bgetmbuf( int );
   50 void i4b_Bfreembuf( struct mbuf *m );
   51 void i4b_Bcleanifq( struct ifqueue * );
   52 
   53 #endif /* _I4B_MBUF_H_ */
   54 
   55 /* EOF */

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