Method Concurrent.Future()->call_callback()
- Method
call_callback
 protectedvoidcall_callback(function(:void)cb,mixed...args)- Description
 Call a callback function.
- Parameter 
cb Callback function to call.
- Parameter 
args Arguments to call
cbwith.The default implementation calls
cbvia do_call_callback() via the backend set by set_backend() (if any), and otherwise falls back to the the mode set by use_backend().- See also