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/sys/filio.h

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    1 /*      $NetBSD: filio.h,v 1.8 2003/08/07 16:34:04 agc Exp $    */
    2 
    3 /*-
    4  * Copyright (c) 1982, 1986, 1990, 1993, 1994
    5  *      The Regents of the University of California.  All rights reserved.
    6  * (c) UNIX System Laboratories, Inc.
    7  * All or some portions of this file are derived from material licensed
    8  * to the University of California by American Telephone and Telegraph
    9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   10  * the permission of UNIX System Laboratories, Inc.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  * 3. Neither the name of the University nor the names of its contributors
   21  *    may be used to endorse or promote products derived from this software
   22  *    without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   34  * SUCH DAMAGE.
   35  *
   36  *      @(#)filio.h     8.1 (Berkeley) 3/28/94
   37  */
   38 
   39 #ifndef _SYS_FILIO_H_
   40 #define _SYS_FILIO_H_
   41 
   42 #include <sys/ioccom.h>
   43 
   44 /* Generic file-descriptor ioctl's. */
   45 #define FIOCLEX          _IO('f', 1)            /* set close on exec on fd */
   46 #define FIONCLEX         _IO('f', 2)            /* remove close on exec */
   47 #define FIONREAD        _IOR('f', 127, int)     /* get # bytes to read */
   48 #define FIONBIO         _IOW('f', 126, int)     /* set/clear non-blocking i/o */
   49 #define FIOASYNC        _IOW('f', 125, int)     /* set/clear async i/o */
   50 #define FIOSETOWN       _IOW('f', 124, int)     /* set owner */
   51 #define FIOGETOWN       _IOR('f', 123, int)     /* get owner */
   52 #define OFIOGETBMAP     _IOWR('f', 122, uint32_t) /* get underlying block no. */
   53 #define FIOGETBMAP      _IOWR('f', 122, daddr_t) /* get underlying block no. */
   54 
   55 /* Ugly symbol for compatibility with other operating systems */
   56 #define FIBMAP          FIOGETBMAP
   57 
   58 #endif /* !_SYS_FILIO_H_ */

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