DragonFly On-Line Manual Pages

Search: Section:  

CURLSHOPT_UNLOCKFUNC(3)             libcurl            CURLSHOPT_UNLOCKFUNC(3)


NAME

       CURLSHOPT_UNLOCKFUNC - mutex unlock callback


SYNOPSIS

       #include <curl/curl.h>

       void unlockcb(CURL *handle, curl_lock_data data, void *clientp);

       CURLSHcode curl_share_setopt(CURLSH *share, CURLSHOPT_UNLOCKFUNC, unlockcb);


DESCRIPTION

       Set a mutex unlock callback for the share object. There's a
       corresponding CURLSHOPT_LOCKFUNC(3) callback called when the mutex is
       first locked.

       The unlockcb argument must be a pointer to a function matching the
       prototype shown above. The arguments to the callback are:

       handle is the currently active easy handle in use when the share object
       is released.

       The data argument tells what kind of data libcurl wants to unlock. Make
       sure that the callback uses a different lock for each kind of data.

       clientp is the private pointer you set with CURLSHOPT_USERDATA.  This
       pointer is not used by libcurl itself.


PROTOCOLS

       All


EXAMPLE

         CURLSHcode sh;
         share = curl_share_init();
         sh = curl_share_setopt(share, CURLSHOPT_UNLOCKFUNC, mutex_unlock);
         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_setopt(3), curl_share_cleanup(3),
       curl_share_init(3)

ibcurl 8.1.2                    April 26, 2023         CURLSHOPT_UNLOCKFUNC(3)

Search: Section: