<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _read_config(argv, config, current_name, queue):
 """Read the Sphinx config via multiprocessing for isolation. :param tuple argv: Arguments to pass to Sphinx. :param sphinxcontrib.versioning.lib.Config config: Runtime configuration. :param str current_name: The ref name of the current version being built. :param multiprocessing.queues.Queue queue: Communication channel to parent process. """

    # Patch.
    EventHandlers.ABORT_AFTER_READ = queue

    # Run.
    _build(argv, config, Versions(list()), current_name, False)