curl_share_cleanup - Clean up a shared object
CURLSHcode curl_share_cleanup(CURLSH *share_handle);
This function deletes a shared object. The share handle cannot be used
anymore when this function has been called.
CURLSHE_OK (zero) means that the option was set properly, non-zero
means an error occurred as <curl/curl.h> defines. See the libcurl-
errors.3 man page for the full list with descriptions. If an error
occurs, then the share object will not be deleted.