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52 lines
1.3 KiB
Groff
52 lines
1.3 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLINFO_CONN_ID.md
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.TH CURLINFO_CONN_ID 3 "2024-06-01" 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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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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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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}
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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 CURLINFO_XFER_ID (3),
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.BR curl_easy_getinfo (3),
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.BR curl_easy_setopt (3)
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