run_in_process
if (run_in_process(blocking_open_reader, &reader_pid,
if (run_in_process(blocking_open_writer, &writer_pid,
if (run_in_process(blocking_open_writer, &writer_pid,
if (run_in_process(blocking_open_reader, &reader_pid,
if (run_in_process(non_blocking_open_reader, &pid,
if (run_in_process(non_blocking_open_writer, &pid,