mirror of
https://github.com/curl/curl.git
synced 2024-12-09 06:30:06 +08:00
73 lines
2.7 KiB
Groff
73 lines
2.7 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 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.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.
|
|
.\" *
|
|
.\" * SPDX-License-Identifier: curl
|
|
.\" *
|
|
.\" **************************************************************************
|
|
.TH curl_easy_duphandle 3 "19 Sep 2014" "libcurl" "libcurl"
|
|
.SH NAME
|
|
curl_easy_duphandle - Clone a libcurl session handle
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <curl/curl.h>
|
|
|
|
CURL *curl_easy_duphandle(CURL *handle);
|
|
.fi
|
|
.SH DESCRIPTION
|
|
This function returns a new curl handle, a duplicate, using all the options
|
|
previously set in the input curl \fIhandle\fP. Both handles can subsequently
|
|
be used independently and they must both be freed with
|
|
\fIcurl_easy_cleanup(3)\fP.
|
|
|
|
Any options that the input handle has been told to point to (as opposed to
|
|
copy) with previous calls to \fIcurl_easy_setopt(3)\fP, are pointed to by the
|
|
new handle as well. You must therefore make sure to keep the data around until
|
|
both handles have been cleaned up.
|
|
|
|
The new handle does \fBnot\fP inherit any state information, no connections,
|
|
no SSL sessions and no cookies. It also does not inherit any share object
|
|
states or options (created as if \fICURLOPT_SHARE(3)\fP was set to NULL).
|
|
|
|
In multi-threaded programs, this function must be called in a synchronous way,
|
|
the input handle may not be in use when cloned.
|
|
.SH EXAMPLE
|
|
.nf
|
|
CURL *curl = curl_easy_init();
|
|
CURL *nother;
|
|
if(curl) {
|
|
CURLcode res;
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
|
|
nother = curl_easy_duphandle(curl);
|
|
res = curl_easy_perform(nother);
|
|
curl_easy_cleanup(nother);
|
|
curl_easy_cleanup(curl);
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 7.9
|
|
.SH RETURN VALUE
|
|
If this function returns NULL, something went wrong and no valid handle was
|
|
returned.
|
|
.SH SEE ALSO
|
|
.BR curl_easy_cleanup (3),
|
|
.BR curl_easy_init (3),
|
|
.BR curl_easy_reset (3),
|
|
.BR curl_global_init (3)
|