A simple class used to send a "stop" message to an jss::actor instance.
namespace jss { class stop_actor {}; }
#include <jss/actor.hpp>
Calling jss::actor::stop() sends this message to an actor.
It is the only message type handled automatically by jss::actor::receive().
If an actor catches exceptions of type jss::stop_actor, it should either rethrow
the exception or otherwise return from the actor thread function.
jss::actor
class
jss::actor::stop() member function