Provided by: libcurl4-doc_8.9.1-2ubuntu2.2_all 

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
This functionality affects all supported protocols
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 curl 7.10.3
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 2024-12-11 CURLSHOPT_USERDATA(3)