528 lines
13 KiB
Groff
528 lines
13 KiB
Groff
.\" Copyright (c) 1983, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)fcntl.2 8.2 (Berkeley) 1/12/94
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.\"
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.Dd January 12, 1994
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.Dt FCNTL 2
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.Os BSD 4.2
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.Sh ̾¾Î
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.Nm fcntl
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.Nd ¥Õ¥¡¥¤¥ëÀ©¸æ
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.Sh ½ñ¼°
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.Fd #include <fcntl.h>
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.Ft int
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.Fn fcntl "int fd" "int cmd" "..."
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.Sh ²òÀâ
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.Fn fcntl
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.Fa fd
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.Fa cmd
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.Fa cmd
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.Nm
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.Fa "int arg"
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.Bl -tag -width F_GETOWNX
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.It Dv F_DUPFD
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.ne 7v
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.Bd -literal
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struct flock {
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off_t l_start; /* ³«»Ï°ÌÃ֤Υª¥Õ¥»¥Ã¥È */
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off_t l_len; /* len = 0 ¤Ï¥Õ¥¡¥¤¥ëËöÈø¤Þ¤Ç¤È¤¤¤¦°ÕÌ£ */
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pid_t l_pid; /* ¥í¥Ã¥¯½êÍ¼Ô */
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short l_type; /* ¥í¥Ã¥¯¥¿¥¤¥×: Æɼè¤ê/½ñ¹þ¤ß¤Ê¤É */
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short l_whence; /* l_start ¤Î¥¿¥¤¥× */
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};
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.Ed
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Ìä¹ç¤»·¿¥ì¥³¡¼¥É¥í¥Ã¥¯¤ËÍøÍѤǤ¤ë¥³¥Þ¥ó¥É¤Ï¼¡¤Î¤È¤ª¤ê¤Ç¤¹¡£
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.Bl -tag -width F_SETLKWX
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.It Dv F_GETLK
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3 ÈÖ¤á¤Î°ú¿ô
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.Fa arg
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¤ò
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.Fa "struct flock"
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(Á°µ¤ò»²¾È) ¤Ø¤Î¥Ý¥¤¥ó¥¿¤È²ò¼á¤·¤Æ¡¢¤½¤ì¤Ë¤è¤Ã¤Æ»ØÄꤵ¤ì¤ë
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.Fn fcntl
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.Fa flock
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.It Dv F_SETLK
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3 ÈÖ¤á¤Î°ú¿ô
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.Fn fcntl
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.Pf ( Xr sigaction 2
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.Fa l_whence
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