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.\"
.\" epoll by Davide Libenzi ( efficient event notification retrieval )
.\" Copyright (C) 2003 Davide Libenzi
.\"
.\" This program is free software; you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License as published by
.\" the Free Software Foundation; either version 2 of the License, or
.\" (at your option) any later version.
.\"
.\" This program is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public License
.\" along with this program; if not, write to the Free Software
.\" Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
.\"
.\" Davide Libenzi <davidel@xmailserver.org>
.\"
.\"
.\" Japanese Version Copyright (c) 2004 Yuichi SATO
.\" all rights reserved.
.\" Translated Tue Jun 15 05:57:23 JST 2004
.\" by Yuichi SATO <ysato444@yahoo.co.jp>
.\" Updated & Modified Wed Dec 29 11:55:24 JST 2004 by Yuichi SATO
.\"
.TH EPOLL_CTL 2 "2002-10-23" Linux "Linux Programmer's Manual"
.SH ̾
epoll_ctl \- epoll ǥץΥե椹
.SH
.B #include <sys/epoll.h>
.sp
.BR "int epoll_ctl(int " epfd ", int " op ", int " fd ", struct epoll_event *" event )
.SH
оݥեǥץ
.I fd
ؤ
.I op
μ¹Ԥᤷ
.B epoll
ǥץ
.I epfd
椹롣
.I event
ϥեǥץ
.I fd
˥줿֥ȤҤ롣
.B struct epoll_event
ϰʲΤ褦:
.sp
.nf
typedef union epoll_data {
void *ptr;
int fd;
__uint32_t u32;
__uint64_t u64;
} epoll_data_t;
struct epoll_event {
__uint32_t events; /* epoll ٥ */
epoll_data_t data; /* 桼ǡѿ */
};
.fi
.I events
ФϡʲΤ褦ʻѲǽʥ٥ȥפȤäƹ줿
ӥåȥåȤǤ롣
.TP
.B EPOLLIN
Ϣդ줿եФơ
.BR read (2)
ǽǤ롣
.TP
.B EPOLLOUT
Ϣդ줿եФơ
.BR write (2)
ǽǤ롣
.TP
.B EPOLLPRI
.BR read (2)
ǽʶ۵ (urgent) ǡ롣
.TP
.B EPOLLERR
Ϣդ줿եǥץ˥顼郎ä
.TP
.B EPOLLHUP
Ϣդ줿եǥץ˥ϥåפä
.TP
.B EPOLLET
Ϣդ줿եǥץ
åȥꥬư (Edge Triggered behaviour) ꤹ롣
.B epoll
ΥǥեȤưϡ٥ȥꥬ (Level Triggered) Ǥ롣
åȥꥬȥ٥ȥꥬˤ륤٥ʬ۵
(event distribution architectures) ˤĤƤξܺ٤ʾϡ
.BR epoll (4)
Ȥ뤳ȡ
.TP
.B EPOLLONESHOT
Ϣդ줿եǥץ
ư (One-Shot behaviour) ꤹ롣
ϥ٥Ȥ
.BR epoll_wait (2)
ˤäưФ줿塢
Ϣդ줿եǥץŪ˴졢
.B epoll
եˤäƥ٥Ȥ𤵤ʤʤ뤳Ȥ̣롣
٥ȥޥǥեǥץͭˤ뤿ˤϡ
.BR epoll_ctl (2)
.B EPOLL_CTL_MOD
ꤷƸƤӽФʤФʤʤ
.PP
.sp
.B epoll
եϡ
.BR poll (2)
ݡȤƤΥեǥץݡȤ롣
.IR op
˻Ǥͭͤϡʲ̤:
.RS
.TP
.B EPOLL_CTL_ADD
оݥեǥץ
.I fd
.B epoll
ǥץ
.I epfd
ɲä٥
.I event
.I fd
˥줿ե˴Ϣդ롣
.TP
.B EPOLL_CTL_MOD
٥
.I event
оݥեǥץ
.I fd
˴Ϣդ褦ѹ롣
.TP
.B EPOLL_CTL_DEL
оݥեǥץ
.I fd
.B epoll
եǥץ
.I epfd
롣
.RE
.SH ֤
硢
.BR epoll_ctl (2)
0 ֤
顼ä硢
.BR epoll_ctl (2)
\-1 ֤
.I errno
Ŭڤꤹ롣
.SH 顼
.TP
.B EBADF
.I epfd
եǥץͭʥեǥץǤʤ
.TP
.B EINVAL
Ϳ줿եǥץ
.I epfd
.B epoll
եǥץǤʤ
ޤᤵ줿
.I op
ΥեǥݡȤƤʤ
.TP
.B ENOMEM
ᤵ줿
.I op
Τ˽ʬʥ꤬ʤ
.TP
.B EPERM
оݥե
.I fd
.B epoll
ǥݡȤƤʤ
.SH
.BR epoll_ctl (2)
Linux ͥ 2.5.44 Ƴ줿 API Ǥ롣
ե Linux ͥ 2.5.66 dzꤵ٤Ǥ롣
.SH Ϣ
.BR epoll_create (2),
.BR epoll_wait (2),
.BR epoll (4)
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