curl / libcurl / API / curl_multi_setopt / CURLMOPT_QUICK_EXIT

CURLMOPT_QUICK_EXIT explained

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 returns a CURLMcode indicating success or error.

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