106     SignalWrap* wrap;  in Start()  local
107     ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());  in Start()
108     Environment* env = wrap->env();  in Start()
122         &wrap->handle_,  in Start()
124           SignalWrap* wrap = ContainerOf(&SignalWrap::handle_, handle);  in Start()  local
125           Environment* env = wrap->env();  in Start()
129           wrap->MakeCallback(env->onsignal_string(), 1, &arg);  in Start()
134       CHECK(!wrap->active_);  in Start()
135       wrap->active_ = true;  in Start()
144     SignalWrap* wrap;  in Stop()  local
145     ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());  in Stop()
147     if (wrap->active_)  {  in Stop()
148       wrap->active_ = false;  in Stop()
149       DecreaseSignalHandlerCount(wrap->handle_.signum);  in Stop()
152     int err = uv_signal_stop(&wrap->handle_);  in Stop()