Return to uio.h CVS log

Up to [Net/2] / Net2 / sys

Annotation of Net2/sys/uio.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)uio.h       7.8 (Berkeley) 4/15/91
        !            34:  */
        !            35: 
        !            36: #ifndef _UIO_H_
        !            37: #define        _UIO_H_
        !            38: 
        !            39: struct iovec {
        !            40:        caddr_t iov_base;
        !            41:        int     iov_len;
        !            42: };
        !            43: 
        !            44: enum   uio_rw { UIO_READ, UIO_WRITE };
        !            45: 
        !            46: /*
        !            47:  * Segment flag values.
        !            48:  */
        !            49: enum   uio_seg {
        !            50:        UIO_USERSPACE,          /* from user data space */
        !            51:        UIO_SYSSPACE,           /* from system space */
        !            52:        UIO_USERISPACE          /* from user I space */
        !            53: };
        !            54: 
        !            55: struct uio {
        !            56:        struct  iovec *uio_iov;
        !            57:        int     uio_iovcnt;
        !            58:        off_t   uio_offset;
        !            59:        int     uio_resid;
        !            60:        enum    uio_seg uio_segflg;
        !            61:        enum    uio_rw uio_rw;
        !            62:        struct  proc *uio_procp;
        !            63: };
        !            64: 
        !            65:  /*
        !            66:   * Limits
        !            67:   */
        !            68: #define UIO_MAXIOV     1024            /* max 1K of iov's */
        !            69: #define UIO_SMALLIOV   8               /* 8 on stack, else malloc */
        !            70: 
        !            71: #ifndef        KERNEL
        !            72: 
        !            73: #include <sys/cdefs.h>
        !            74: 
        !            75: __BEGIN_DECLS
        !            76: int    readv __P((int, const struct iovec *, int));
        !            77: int    writev __P((int, const struct iovec *, int));
        !            78: __END_DECLS
        !            79: 
        !            80: #endif /* !KERNEL */
        !            81: 
        !            82: #endif /* !_UIO_H_ */

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.