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'\" t
.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" Copyright (C) 2006 Michael Kerrisk <mtk.manpages@gmail.com>
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Japanese Version Copyright (c) 2006 Akihiro MOTOKI all rights reserved.
.\" Translated 2006-04-18, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\"
.TH SEM_OPEN 3 2006-03-25 "Linux" "Linux Programmer's Manual"
.SH ̾
sem_open \- ̾դޥեץ
.SH
.nf
.B #include <semaphore.h>
.sp
.BI "sem_t *sem_open(const char *" name ", int " oflag );
.BI "sem_t *sem_open(const char *" name ", int " oflag ", "
.BI " mode_t " mode ", unsigned int " value );
.fi
.SH
.BR sem_open ()
ϡ POSIX ޥե뤫¸ΥޥեΥץԤ
ޥե
.I name
Ǽ̤롣
.I name
ιξܺ٤
.BR sem_overview (7)
ȡ
.I oflag
ˤϡ
.BR sem_open ()
ư椹ե饰ꤹ롣
.I oflag
.B O_CREAT
ꤵȡޤ¸ߤʤˤϤΥޥե롣
ޥեνͭ (桼 ID)롼ͭ (롼 ID) ˤϡ
줾ƤӽФץμ¸ UID¸ GID ꤵ롣
.\" ºݤϡLinux Ǥϥե륷ƥ ID Ѥ롣
.I oflag
.B O_CREAT
.B O_EXCL
ξꤵ줿硢ꤵ줿̾
.I name
ΥޥեǤ¸ߤȥ顼֤롣
.PP
.I oflag
.B O_CREAT
ꤹ硢˰ 2 ɬפǤ롣
.I mode
ϡ
.BR open (2)
Ʊ褦ˡޥեꤵ륢 (permission)
ꤹ롣ϥץ umask ǥޥ롣
ޥե˥褦Ȥ桼ϡɤ߽ФĤȽߵĤ
ξɬפ롣
.I value
Ͽޥեνͤꤹ롣
.B O_CREAT
ꤵ졢ꤷ̾
.I name
ΥޥեǤ¸ߤ硢
.I mode
.I value
̵뤵롣
.SH ֤
ȡ
.BR sem_open ()
ϿޥեΥɥ쥹֤
Υɥ쥹¾ΥޥեϢδؿƤӽФݤ˻Ѥ롣
顼ξ硢
.BR sem_open ()
.B SEM_FAILED
֤
.I errno
˥顼ͤåȤ롣
.SH 顼
.TP
.B EACCES
Υޥե¸ߤ뤬ƤӽФˤϤΥޥեץ
Ĥʤ
.TP
.B EEXIST
.I oflag
.B O_CREAT
.B O_EXCL
ξꤵ줿
.I name
Ȥ̾ΥޥեϤǤ¸ߤ롣
.TP
.B EINVAL
.I value
.B SEM_VALUE_MAX
礭
.TP
.B EMFILE
ץ줿եǤˤΥץˤ¤ãƤ롣
.TP
.B ENAMETOOLONG
.I name
Ĺ롣
.TP
.B ENFILE
ץ줿եƥΤǤξ¤ãƤ롣
.TP
.B ENOENT
.I oflag
.B O_CREAT
ե饰ꤵƤ餺
.I name
Ȥ̾Υޥե¸ߤʤ
.TP
.B ENOMEM
ʬʥ꤬ʤ
.SH
POSIX.1-2001.
.SH Ϣ
.BR sem_close (3),
.BR sem_getvalue (3),
.BR sem_post (3),
.BR sem_unlink (3),
.BR sem_wait (3),
.BR sem_overview (7)
|
