72 lines
3.2 KiB
Groff
72 lines
3.2 KiB
Groff
|
.\" **************************************************************************
|
||
|
|
.\" * _ _ ____ _
|
||
|
|
.\" * Project ___| | | | _ \| |
|
||
|
|
.\" * / __| | | | |_) | |
|
||
|
|
.\" * | (__| |_| | _ <| |___
|
||
|
|
.\" * \___|\___/|_| \_\_____|
|
||
|
|
.\" *
|
||
|
|
.\" * Copyright (C) 1998 - 2018, 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 https://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.
|
||
|
|
.\" *
|
||
|
|
.\" **************************************************************************
|
||
|
|
.TH curl_multi_add_handle 3 "4 March 2002" "libcurl 7.9.5" "libcurl Manual"
|
||
|
|
.SH NAME
|
||
|
|
curl_multi_add_handle - add an easy handle to a multi session
|
||
|
|
.SH SYNOPSIS
|
||
|
|
#include <curl/curl.h>
|
||
|
|
|
||
|
|
CURLMcode curl_multi_add_handle(CURLM *multi_handle, CURL *easy_handle);
|
||
|
|
.ad
|
||
|
|
.SH DESCRIPTION
|
||
|
|
Adds a standard easy handle to the multi stack. This function call will make
|
||
|
|
this \fImulti_handle\fP control the specified \fIeasy_handle\fP.
|
||
|
|
|
||
|
|
While an easy handle is added to a multi stack, you cannot and you must not
|
||
|
|
use \fIcurl_easy_perform(3)\fP on that handle. After having removed the easy
|
||
|
|
handle from the multi stack again, it is perfectly fine to use it with the
|
||
|
|
easy interface again.
|
||
|
|
|
||
|
|
If the easy handle is not set to use a shared (\fICURLOPT_SHARE(3)\fP) or
|
||
|
|
global DNS cache (\fICURLOPT_DNS_USE_GLOBAL_CACHE(3)\fP), it will be made to
|
||
|
|
use the DNS cache that is shared between all easy handles within the multi
|
||
|
|
handle when \fIcurl_multi_add_handle(3)\fP is called.
|
||
|
|
|
||
|
|
When an easy interface is added to a multi handle, it will use a shared
|
||
|
|
connection cache owned by the multi handle. Removing and adding new easy
|
||
|
|
handles will not affect the pool of connections or the ability to do
|
||
|
|
connection re-use.
|
||
|
|
|
||
|
|
If you have \fICURLMOPT_TIMERFUNCTION(3)\fP set in the multi handle (and you
|
||
|
|
really should if you're working event-based with
|
||
|
|
\fIcurl_multi_socket_action(3)\fP and friends), that callback will be called
|
||
|
|
from within this function to ask for an updated timer so that your main event
|
||
|
|
loop will get the activity on this handle to get started.
|
||
|
|
|
||
|
|
The easy handle will remain added to the multi handle until you remove it
|
||
|
|
again with \fIcurl_multi_remove_handle(3)\fP - even when a transfer with that
|
||
|
|
specific easy handle is completed.
|
||
|
|
|
||
|
|
You should remove the easy handle from the multi stack before you terminate
|
||
|
|
first the easy handle and then the multi handle:
|
||
|
|
|
||
|
|
1 - \fIcurl_multi_remove_handle(3)\fP
|
||
|
|
|
||
|
|
2 - \fIcurl_easy_cleanup(3)\fP
|
||
|
|
|
||
|
|
3 - \fIcurl_multi_cleanup(3)\fP
|
||
|
|
.SH RETURN VALUE
|
||
|
|
CURLMcode type, general libcurl multi interface error code.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
.BR curl_multi_cleanup "(3)," curl_multi_init "(3), "
|
||
|
|
.BR curl_multi_setopt "(3), " curl_multi_socket_action "(3) "
|