CURLOPT_FORBID_REUSE(3) Library Functions Manual CURLOPT_FORBID_REUSE(3)
NAME
CURLOPT_FORBID_REUSE - make connection get closed at once after use
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FORBID_REUSE, long close);
DESCRIPTION
Pass a long. Set close to 1 to make libcurl explicitly close the
connection when done with the transfer. Normally, libcurl keeps all
connections alive when done with one transfer in case a succeeding one
follows that can reuse them. This option should be used with caution
and only if you understand what it does as it can seriously impact
performance.
Set to 0 to have libcurl keep the connection open for possible later
reuse (default behavior).
DEFAULT
0
PROTOCOLS
This functionality affects all supported protocols
EXAMPLE
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode result;
CURLcode result2;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
curl_easy_setopt(curl, CURLOPT_FORBID_REUSE, 1L);
result = curl_easy_perform(curl);
/* this second transfer may not reuse the same connection */
result2 = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
AVAILABILITY
Added in curl 7.7
RETURN VALUE
curl_easy_setopt(3) returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non-zero means an error occurred,
see libcurl-errors(3).
SEE ALSO
CURLMOPT_NETWORK_CHANGED(3), CURLOPT_FRESH_CONNECT(3),
CURLOPT_MAXCONNECTS(3), CURLOPT_MAXLIFETIME_CONN(3)
libcurl 2026-06-09 CURLOPT_FORBID_REUSE(3)
curl 8.20.0 - Generated Tue Jun 9 15:39:45 CDT 2026