x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
CURLINFO_XFER_ID(3) libcurl CURLINFO_XFER_ID(3)
NAME
CURLINFO_XFER_ID - get the ID of a transfer
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_XFER_ID,
curl_off_t *xfer_id);
DESCRIPTION
Pass a pointer to a curl_off_t to receive the identifier of the cur-
rent/last transfer done with the handle. Stores -1 if no transfer has
been started yet for the handle.
The transfer id is unique among all transfers performed using the same
connection cache. This is implicitly the case for all transfers 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 xfer_id;
res = curl_easy_getinfo(curl, CURLINFO_XFER_ID, &xfer_id);
if(!res) {
printf("Transfer ID: %" CURL_FORMAT_CURL_OFF_T "\n", xfer_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_CONN_ID(3)
libcurl 8.4.0 September 26, 2023 CURLINFO_XFER_ID(3)
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