sys/sys/filio.h

root/sys/sys/filio.h
/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1982, 1986, 1990, 1993, 1994
 *      The Regents of the University of California.  All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _SYS_FILIO_H_
#define _SYS_FILIO_H_

#include <sys/_types.h>
#include <sys/ioccom.h>

/* Generic file-descriptor ioctl's. */
#define FIOCLEX          _IO('f', 1)            /* set close on exec on fd */
#define FIONCLEX         _IO('f', 2)            /* remove close on exec */
#define FIONREAD        _IOR('f', 127, int)     /* get # bytes to read */
#define FIONBIO         _IOW('f', 126, int)     /* set/clear non-blocking i/o */
#define FIOASYNC        _IOW('f', 125, int)     /* set/clear async i/o */
#define FIOSETOWN       _IOW('f', 124, int)     /* set owner */
#define FIOGETOWN       _IOR('f', 123, int)     /* get owner */
#define FIODTYPE        _IOR('f', 122, int)     /* get d_flags type part */
#define FIOGETLBA       _IOR('f', 121, int)     /* get start blk # */
struct fiodgname_arg {
        int     len;
        void    *buf;
};
#define FIODGNAME       _IOW('f', 120, struct fiodgname_arg) /* get dev. name */
#define FIONWRITE       _IOR('f', 119, int)     /* get # bytes (yet) to write */
#define FIONSPACE       _IOR('f', 118, int)     /* get space in send queue */
/* Handle lseek SEEK_DATA and SEEK_HOLE for holey file knowledge. */
#define FIOSEEKDATA     _IOWR('f', 97, off_t)   /* SEEK_DATA */
#define FIOSEEKHOLE     _IOWR('f', 98, off_t)   /* SEEK_HOLE */
struct fiobmap2_arg {
        __daddr_t       bn;
        int             runp;
        int             runb;
};
/* Get the file's bmap info for the logical block bn. */
#define FIOBMAP2        _IOWR('f', 99, struct fiobmap2_arg)
/* POSIX shm largepage set/get config */
#define FIOSSHMLPGCNF   _IOW('f', 100, struct shm_largepage_conf)
#define FIOGSHMLPGCNF   _IOR('f', 101, struct shm_largepage_conf)

#ifdef _KERNEL
#ifdef COMPAT_FREEBSD32
struct fiodgname_arg32 {
        int             len;
        uint32_t        buf;    /* (void *) */
};
#define FIODGNAME_32    _IOC_NEWTYPE(FIODGNAME, struct fiodgname_arg32)
#endif

void    *fiodgname_buf_get_ptr(void *fgnp, u_long com);
#endif

#endif /* !_SYS_FILIO_H_ */
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