...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Constructor.
basic_waitable_timer( boost::asio::io_service & io_service);
This constructor creates a timer without setting an expiry time. The
expires_at()
or expires_from_now()
functions must be called to set an expiry time before the timer can be
waited on.
The io_service
object that
the timer will use to dispatch handlers for any asynchronous operations
performed on the timer.