in plugin/server_audit/server_audit.cc [1441:1468]
static int do_log_user(const char *name, int len,
const char *proxy, int proxy_len, int take_lock)
{
int result;
if (!name)
return 0;
if (take_lock)
mysql_prlock_rdlock(&lock_operations);
if (incl_user_coll.n_users)
{
result= coll_search(&incl_user_coll, name, len) != 0 ||
(proxy && coll_search(&incl_user_coll, proxy, proxy_len) != 0);
}
else if (excl_user_coll.n_users)
{
result= coll_search(&excl_user_coll, name, len) == 0 &&
(proxy && coll_search(&excl_user_coll, proxy, proxy_len) == 0);
}
else
result= 1;
if (take_lock)
mysql_prlock_unlock(&lock_operations);
return result;
}