workbench/network/stacks/AROSTCP/bsdsocket/kern/uio.h

   1 /*
   2  * Copyright (C) 1993 AmiTCP/IP Group, <amitcp-group@hut.fi>
   3  *                    Helsinki University of Technology, Finland.
   4  *                    All rights reserved.
   5  * Copyright (C) 2005 Neil Cafferkey
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  19  * MA 02111-1307, USA.
  20  *
  21  */
  22
  23 /*
  24  * Copyright (c) 1982, 1986 The Regents of the University of California.
  25  * All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)uio.h       7.8 (Berkeley) 4/15/91
  56  */
  57
  58 #ifndef UIO_H
  59 #define UIO_H
  60
  61 #ifndef AMITCP
  62 enum    uio_rw { UIO_READ, UIO_WRITE };
  63
  64 /*
  65  * Segment flag values.
  66  */
  67 enum    uio_seg {
  68         UIO_USERSPACE,          /* from user data space */
  69         UIO_SYSSPACE,           /* from system space */
  70         UIO_USERISPACE          /* from user I space */
  71 };
  72 #endif /* !AMITCP */
  73
  74 struct iovec;
  75 struct uio {
  76 #ifndef AMITCP
  77         struct  iovec *uio_iov;
  78         int     uio_iovcnt;
  79         off_t   uio_offset;
  80         int     uio_resid;
  81         enum    uio_seg uio_segflg;
  82         enum    uio_rw uio_rw;
  83         struct  proc *uio_procp;
  84 #else
  85         struct  iovec *uio_iov;
  86         int     uio_iovcnt;
  87         int     uio_resid;
  88         struct  SocketBase *uio_procp;
  89 #endif
  90 };
  91
  92  /*
  93   * Limits
  94   */
  95 #define UIO_MAXIOV      1024            /* max 1K of iov's */
  96 #define UIO_SMALLIOV    8               /* 8 on stack, else malloc */
  97
  98 #endif /* !UIO_H */
  99
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