CURLSHOPT_USERDATA(3)      Library Functions Manual      CURLSHOPT_USERDATA(3)

NAME
       CURLSHOPT_USERDATA - pointer passed to the lock and unlock mutex
       callbacks

SYNOPSIS
       #include <curl/curl.h>

       CURLSHcode curl_share_setopt(CURLSH *share, CURLSHOPT_USERDATA, void *clientp);

DESCRIPTION
       The clientp parameter is held verbatim by libcurl and is passed on as
       the clientp argument to the callbacks set with CURLSHOPT_LOCKFUNC(3)
       and CURLSHOPT_UNLOCKFUNC(3).

PROTOCOLS
       All

EXAMPLE
       struct secrets {
         void *custom;
       };

       int main(void)
       {
         CURLSHcode sh;
         struct secrets private_stuff;
         CURLSH *share = curl_share_init();
         sh = curl_share_setopt(share, CURLSHOPT_USERDATA, &private_stuff);
         if(sh)
           printf("Error: %s\n", curl_share_strerror(sh));
       }

AVAILABILITY
       Added in 7.10

RETURN VALUE
       CURLSHE_OK (zero) means that the option was set properly, non-zero
       means an error occurred. See libcurl-errors(3) for the full list with
       descriptions.

SEE ALSO
       CURLSHOPT_LOCKFUNC(3), curl_share_cleanup(3), curl_share_init(3),
       curl_share_setopt(3)

libcurl                          April 26 2024           CURLSHOPT_USERDATA(3)