.\"
.\" Copyright 1998 by the Massachusetts Institute of Technology.
.\"
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.\" software and its documentation for any purpose and without
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.\" software without specific, written prior permission.
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.\" this software for any purpose.  It is provided "as is"
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.\" SPDX-License-Identifier: MIT
.\"
.TH ARES_TIMEOUT 3 "25 July 1998"
.SH NAME
ares_timeout \- return maximum time to wait
.SH SYNOPSIS
.nf
#include <ares.h>

struct timeval *ares_timeout(ares_channel_t *\fIchannel\fP,
                             struct timeval *\fImaxtv\fP,
                             struct timeval *\fItv\fP)
.fi
.SH DESCRIPTION
The \fBares_timeout(3)\fP function determines the maximum time for which the
caller should wait before invoking \fIares_process(3)\fP to process timeouts.
The parameter \fImaxtv\fP specifies a existing maximum timeout, or \fBNULL\fP
if the caller does not wish to apply a maximum timeout.  The parameter
\fItv\fP must point to a writable buffer of type \fBstruct timeval\fP It is
valid for \fImaxtv\fP and \fItv\fP to have the same value.

If no queries have timeouts pending sooner than the given maximum timeout,
\fBares_timeout(3)\fP returns the value of \fImaxtv\fP; otherwise
\fBares_timeout(3)\fP stores the appropriate timeout value into the buffer
pointed to by \fItv\fP and returns the value of \fItv\fP.
.SH SEE ALSO
.BR ares_fds (3),
.BR ares_process (3),
.BR ares_process_fd (3)
.SH AUTHOR
Greg Hudson, MIT Information Systems
.br
Copyright 1998 by the Massachusetts Institute of Technology.