class Async::Scheduler

@returns [Process::Status] A process status instance.
@parameter flags [Integer] A bit-mask of flags suitable for `Process::Status.wait`.
@parameter pid [Integer] The process ID to wait for.
Wait for the specified process ID to exit.

def process_wait(pid, flags)
	Thread.new do
		::Process::Status.wait(pid, flags)
	end.value
end