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lib: add CURLINFO_CONN_ID and CURLINFO_XFER_ID
- 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
This commit is contained in:
Stefan Eissing
Daniel Stenberg
parent
fdda99c6ee
commit
e024d5665d
31 changed files with 252 additions and 94 deletions
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@ -247,6 +247,12 @@ See \fICURLINFO_PROTOCOL(3)\fP
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.IP CURLINFO_SCHEME
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The scheme used for the connection. (Added in 7.52.0)
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See \fICURLINFO_SCHEME(3)\fP
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.IP CURLINFO_CONN_ID
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The ID of the last connection used by the transfer. (Added in 8.2.0)
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See \fICURLINFO_CONN_ID(3)\fP
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.IP CURLINFO_XFER_ID
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The ID of the transfer. (Added in 8.2.0)
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See \fICURLINFO_XFER_ID(3)\fP
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.SH TIMES
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.nf
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An overview of the six time values available from curl_easy_getinfo()
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69
docs/libcurl/opts/CURLINFO_CONN_ID.3
Normal file
69
docs/libcurl/opts/CURLINFO_CONN_ID.3
Normal file
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@ -0,0 +1,69 @@
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.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at https://curl.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLINFO_CONN_ID 3 "07 June 2023" "libcurl" "libcurl"
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.SH NAME
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CURLINFO_CONN_ID \- get the ID of the last connection used by the handle
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONN_ID,
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curl_off_t *conn_id);
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.fi
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.SH DESCRIPTION
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Pass a pointer to a \fIcurl_off_t\fP to receive the connection identifier last
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used by the handle. Stores -1 if there was no connection used.
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The connection id is unique among all connections using the same
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connection cache. This is implicitly the case for all connections in the
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same multi handle.
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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.nf
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CURL *curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* Perform the request */
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res = curl_easy_perform(curl);
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if(!res) {
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curl_off_t conn_id;
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res = curl_easy_getinfo(curl, CURLINFO_CONN_ID, &conn_id);
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if(!res) {
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printf("Connection used: %" CURL_FORMAT_CURL_OFF_T "\\n", conn_id);
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}
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}
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}
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.fi
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.SH AVAILABILITY
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Added in 8.2.0
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH "SEE ALSO"
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.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "
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.BR CURLINFO_XFER_ID "(3), "
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70
docs/libcurl/opts/CURLINFO_XFER_ID.3
Normal file
70
docs/libcurl/opts/CURLINFO_XFER_ID.3
Normal file
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@ -0,0 +1,70 @@
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.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at https://curl.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLINFO_XFER_ID 3 "07 June 2023" "libcurl" "libcurl"
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.SH NAME
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CURLINFO_XFER_ID \- get the ID of a transfer
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_XFER_ID,
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curl_off_t *xfer_id);
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.fi
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.SH DESCRIPTION
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Pass a pointer to a \fIcurl_off_t\fP to receive the identifier of the
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current/last transfer done with the handle. Stores -1 if no transfer
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has been started yet for the handle.
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The transfer id is unique among all transfers performed using the same
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connection cache. This is implicitly the case for all transfers in the
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same multi handle.
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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.nf
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CURL *curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* Perform the request */
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res = curl_easy_perform(curl);
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if(!res) {
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curl_off_t xfer_id;
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res = curl_easy_getinfo(curl, CURLINFO_XFER_ID, &xfer_id);
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if(!res) {
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printf("Transfer ID: %" CURL_FORMAT_CURL_OFF_T "\\n", xfer_id);
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}
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}
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}
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.fi
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.SH AVAILABILITY
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Added in 8.2.0
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH "SEE ALSO"
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.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "
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.BR CURLINFO_CONN_ID "(3), "
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@ -421,6 +421,7 @@ CURLINFO_CAINFO 7.84.0
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CURLINFO_CAPATH 7.84.0
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CURLINFO_CERTINFO 7.19.1
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CURLINFO_CONDITION_UNMET 7.19.4
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CURLINFO_CONN_ID 8.2.0
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CURLINFO_CONNECT_TIME 7.4.1
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CURLINFO_CONNECT_TIME_T 7.61.0
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CURLINFO_CONTENT_LENGTH_DOWNLOAD 7.6.1 7.55.0
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@ -503,6 +504,7 @@ CURLINFO_TLS_SSL_PTR 7.48.0
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CURLINFO_TOTAL_TIME 7.4.1
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CURLINFO_TOTAL_TIME_T 7.61.0
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CURLINFO_TYPEMASK 7.4.1
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CURLINFO_XFER_ID 8.2.0
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CURLIOCMD_NOP 7.12.3
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CURLIOCMD_RESTARTREAD 7.12.3
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CURLIOE_FAILRESTART 7.12.3
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