Add enable/disable signal handler notifications

Author: Antonino Calderone

nu_interpreter.cc

@@ -1289,7 +1289,9 @@ interpreter_t::exec_res_t interpreter_t::exec_command(const std::string& cmd)
       if (load(f))
       {
          set_ignore_break_event(true);
-         run(0);
+         signal_mgr_t::instance().disable_notifications();
+         bool res = run(0);
+         exit(res ? 0 : 1);
          return exec_res_t::CMD_EXEC;
       }
 

nu_signal_handling.cc

@@ -98,7 +98,10 @@ bool signal_mgr_t::dispatch(signal_handler_t::event_t ev)
 // dependences
 bool _ev_dispatcher(signal_handler_t::event_t ev)
 {
-   return signal_mgr_t::instance().dispatch(ev);
+   if (! signal_mgr_t::instance()._disable_notifications)
+      return signal_mgr_t::instance().dispatch(ev);
+
+   return true;
 }
 
 

nu_signal_handling.h

@@ -93,6 +93,18 @@ class signal_mgr_t
          i->second.erase(handle);
    }
 
+   
+   void disable_notifications() throw()
+   {
+      _disable_notifications = true;
+   }
+
+
+   void enable_notifications() throw()
+   {
+      _disable_notifications = false;
+   }
+
 
 protected:
    using hlist_t = std::set < signal_handler_t::handle_t > ;
@@ -102,6 +114,8 @@ class signal_mgr_t
    bool dispatch(signal_handler_t::event_t ev);
 
    friend bool _ev_dispatcher(signal_handler_t::event_t ev);
+
+   bool _disable_notifications = false;
 };