**************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
**************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
**************************************************************************
curl_multi_timeout 3 "2 Jan 2006" "libcurl 7.16.0" "libcurl Manual"
NAME
curl_multi_timeout - how long to wait for action before proceeding
SYNOPSIS
#include <curl/curl.h>
CURLMcode curl_multi_timeout(CURLM *multi_handle, long *timeout);
DESCRIPTION
An application using the libcurl multi interface should call
curl_multi_timeout(3) to figure out how long it should wait for socket
actions - at most - before proceeding.
Proceeding means either doing the socket-style timeout action: call the
curl_multi_socket_action(3) function with the sockfd argument set
to CURL_SOCKET_TIMEOUT, or call curl_multi_perform(3) if you're using
the simpler and older multi interface approach.
The timeout value returned in the long timeout points to, is in number
of milliseconds at this very moment. If 0, it means you should proceed
immediately without waiting for anything. If it returns -1, there's no timeout
at all set.
An application that uses the multi_socket API SHOULD not use this function, but
SHOULD instead use curl_multi_setopt(3) and its
CURLMOPT_TIMERFUNCTION option for proper and desired behavior.
Note: if libcurl returns a -1 timeout here, it just means that libcurl
currently has no stored timeout value. You must not wait too long (more than a
few seconds perhaps) before you call curl_multi_perform() again.
"RETURN VALUE"
The standard CURLMcode for multi interface error codes.
"TYPICAL USAGE"
Call curl_multi_timeout(3), then wait for action on the sockets. You
figure out which sockets to wait for by calling curl_multi_fdset(3) or
by a previous call to curl_multi_socket(3).
AVAILABILITY
This function was added in libcurl 7.15.4.
"SEE ALSO"
curl_multi_fdset "(3), " curl_multi_info_read "(3), " curl_multi_socket "(3), " curl_multi_setopt "(3) "