...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Inform
the io_context
that it has some outstanding work to do.
void on_work_started() const;
This function is used to inform the io_context
that some work has
begun. This ensures that the io_context
's run()
and run_one()
functions do not exit while the work
is underway.