...one of the most highly
regarded and expertly designed C++ library projects in the
world. — Herb Sutter and Andrei
object has been stopped.
bool stopped() const;
This function is used to determine whether an
object has been stopped, either through an explicit call to
or due to running out of work. When an
object is stopped, calls to
poll_one() will return immediately
without invoking any handlers.
true if the
object is stopped, otherwise