poll.2s

7号信令功能代码,为开源代码

'\" tr
.\" -*- nroff -*-
.\"
.\" @(#) poll.2s,v 1.1.4.1 2004/01/12 23:45:03 brian Exp
.\"
.\" =========================================================================
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.\" Copyright (C) 2001-2004  OpenSS7 Corp. <www.openss7.com>
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.\" Modified 2004/01/12 23:45:03 by brian
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.so lis.macros
.R1
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et-al " et al" 2 3
abbreviate-label-ranges ".."
sort-adjacent-labels
.R2
.\"
.\"
.TH POLL 2 "2004/01/12 23:45:03" "LiS-2_16_18-8" "Linux STREAMS System Calls"
.SH NAME
.B poll
\- wait for some event on a \fISTREAMS\fR file descriptor
.SH SYNOPSIS
.PP
.B #include <sys/poll.h>
.HP
.BI "int poll(struct pollfd *" ufds ", unsigned int " nfds ", int " timeout );
.SH DESCRIPTION
.PP
.SH "RETURN VALUES"
.PP
.SH ERRORS
.PP
.TP
.RB [ EBADF ]
.TP
.RB [ ENOMEM ]
.TP
.RB [ EFAULT ]
.TP
.RB [ EINTR ]
.SH CAVEATS
.PP
.SH BUGS
.PP
.SH EXAMPLES
.PP
.SH "SEE ALSO"
.PP
.BR streamio (2).
.SH VERSIONS
.PP
This manpage was written for
.B LiS\c
.
.[
LiS
.]
.PP
.BR poll ()
first appeared in SVR 3.
.[
svr3
.]
.\"
.\"
.XX
.[
magic
.]
.[
svr42
.]
.[
svr4
.]
.[
svr3
.]
.[
svid
.]
.[
xns
.]
.[
xbd5
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.[
$LIST$
.]
.TI