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Run the
io_context
object's event processing loop until a specified time to execute at most
one handler.
template< typename Clock, typename Duration> std::size_t run_one_until( const chrono::time_point< Clock, Duration > & abs_time);
The run_one_until()
function blocks until one handler has been dispatched, until the io_context
has been stopped, or until the specified time has been reached.
The time point until which the call may block.
The number of handlers that were executed.