mirror of
https://github.com/curl/curl.git
synced 2024-12-27 06:59:43 +08:00
e024d5665d
- add an `id` long to Curl_easy, -1 on init - once added to a multi (or its own multi), it gets a non-negative number assigned by the connection cache - `id` is unique among all transfers using the same cache until reaching LONG_MAX where it will wrap around. So, not unique eternally. - CURLINFO_CONN_ID returns the connection id attached to data or, if none present, data->state.lastconnect_id - variables and type declared in tool for write out Closes #11185
70 lines
2.3 KiB
Groff
70 lines
2.3 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 CURLINFO_CONN_ID 3 "07 June 2023" "libcurl" "libcurl"
|
|
.SH NAME
|
|
CURLINFO_CONN_ID \- get the ID of the last connection used by the handle
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONN_ID,
|
|
curl_off_t *conn_id);
|
|
.fi
|
|
.SH DESCRIPTION
|
|
Pass a pointer to a \fIcurl_off_t\fP to receive the connection identifier last
|
|
used by the handle. Stores -1 if there was no connection used.
|
|
|
|
The connection id is unique among all connections using the same
|
|
connection cache. This is implicitly the case for all connections in the
|
|
same multi handle.
|
|
|
|
.SH PROTOCOLS
|
|
All
|
|
.SH EXAMPLE
|
|
.nf
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
|
|
|
|
/* Perform the request */
|
|
res = curl_easy_perform(curl);
|
|
|
|
if(!res) {
|
|
curl_off_t conn_id;
|
|
res = curl_easy_getinfo(curl, CURLINFO_CONN_ID, &conn_id);
|
|
if(!res) {
|
|
printf("Connection used: %" CURL_FORMAT_CURL_OFF_T "\\n", conn_id);
|
|
}
|
|
}
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 8.2.0
|
|
.SH RETURN VALUE
|
|
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
|
|
.SH "SEE ALSO"
|
|
.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "
|
|
.BR CURLINFO_XFER_ID "(3), "
|