CURLMOPT_QUICK_EXIT(3) Introduction to Library Functions

NAME

CURLOPT_QUICK_EXIT - allow libcurl to exit quickly

SYNOPSIS

#include <curl/curl.h>

CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_QUICK_EXIT,
long value);

DESCRIPTION

Pass a long as a parameter, 1L meaning that when recovering from a
timeout, libcurl should skip lengthy cleanups that are intended to
avoid all kinds of leaks (threads etc.), as the caller program is
about to call exit() anyway. This allows for a swift termination
after a DNS timeout for example, by canceling and/or forgetting about
a resolver thread, at the expense of a possible (though short-lived)
leak of associated resources.

DEFAULT

20.

PROTOCOLS

This functionality affects all supported protocols

EXAMPLE

int main(void)
{
CURLM *m = curl_multi_init();
/* do not join threads when cleaning up this multi handle */
curl_multi_setopt(m, CURLMOPT_QUICK_EXIT, 1L);
}

AVAILABILITY

Added in curl 8.20.0

RETURN VALUE

curl_multi_setopt(3) returns a CURLMcode indicating success or error.

CURLM_OK (0) means everything was OK, non-zero means an error
occurred, see libcurl-errors(3).

SEE ALSO

CURLOPT_QUICK_EXIT(3)

libcurl 2026-04-29 CURLMOPT_QUICK_EXIT(3)