...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Construct a signal set without adding any signals.
basic_signal_set( boost::asio::io_service & io_service);
This constructor creates a signal set without registering for any signals.
The io_service
object that
the signal set will use to dispatch handlers for any asynchronous
operations performed on the set.