mirror of
https://github.com/moparisthebest/curl
synced 2024-12-22 08:08:50 -05:00
63 lines
1.8 KiB
Groff
63 lines
1.8 KiB
Groff
.\" $Id$
|
|
.\"
|
|
.\" Copyright 1998 by the Massachusetts Institute of Technology.
|
|
.\"
|
|
.\" Permission to use, copy, modify, and distribute this
|
|
.\" software and its documentation for any purpose and without
|
|
.\" fee is hereby granted, provided that the above copyright
|
|
.\" notice appear in all copies and that both that copyright
|
|
.\" notice and this permission notice appear in supporting
|
|
.\" documentation, and that the name of M.I.T. not be used in
|
|
.\" advertising or publicity pertaining to distribution of the
|
|
.\" software without specific, written prior permission.
|
|
.\" M.I.T. makes no representations about the suitability of
|
|
.\" this software for any purpose. It is provided "as is"
|
|
.\" without express or implied warranty.
|
|
.\"
|
|
.TH ARES_FDS 3 "23 July 1998"
|
|
.SH NAME
|
|
ares_fds \- Get file descriptors to select on for name service
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.B #include <ares.h>
|
|
.PP
|
|
.B int ares_fds(ares_channel \fIchannel\fP, fd_set *\fIread_fds\fP,
|
|
.B fd_set *\fIwrite_fds\fP)
|
|
.fi
|
|
.SH DESCRIPTION
|
|
The
|
|
.B ares_fds
|
|
function retrieves the set of file descriptors which the calling
|
|
application should select on for reading and writing for the
|
|
processing of name service queries pending on the name service channel
|
|
identified by
|
|
.IR channel .
|
|
File descriptors will be set in the file descriptor sets pointed to by
|
|
.I read_fds
|
|
and
|
|
.I write_fds
|
|
as appropriate. File descriptors already set in
|
|
.I read_fds
|
|
and
|
|
.I write_fds
|
|
will remain set; initialization of the file descriptor sets
|
|
(using
|
|
.BR FD_ZERO )
|
|
is the responsibility of the caller.
|
|
.SH RETURN VALUES
|
|
.B ares_fds
|
|
returns one greater than the number of the highest socket set in either
|
|
.I read_fds
|
|
or
|
|
.IR write_fds .
|
|
If no queries are active,
|
|
.B ares_fds
|
|
will return 0.
|
|
.SH SEE ALSO
|
|
.BR ares_timeout (3),
|
|
.BR ares_process (3)
|
|
.SH AUTHOR
|
|
Greg Hudson, MIT Information Systems
|
|
.br
|
|
Copyright 1998 by the Massachusetts Institute of Technology.
|