CURLSHOPT_USERDATA3
Pointer passed to the lock and unlock mutex callbacks
Usage
#include <curl/curl.h> CURLSHcode curl_share_setopt(CURLSH *share, CURLSHOPT_USERDATA, void *clientp);
Overview
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
Examples
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));
}
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.
Releases
18 releases since macOS 14.2; the text changed 1 time.