x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
CURLINFO_CONN_ID(3) libcurl CURLINFO_CONN_ID(3)
NAME
CURLINFO_CONN_ID - get the ID of the last connection used by the handle
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONN_ID,
curl_off_t *conn_id);
DESCRIPTION
Pass a pointer to a curl_off_t 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 con-
nection cache. This is implicitly the case for all connections in the
same multi handle.
PROTOCOLS
All
EXAMPLE
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);
}
}
}
AVAILABILITY
Added in 8.2.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
SEE ALSO
curl_easy_getinfo(3), curl_easy_setopt(3), CURLINFO_XFER_ID(3)
libcurl 8.4.0 September 26, 2023 CURLINFO_CONN_ID(3)
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