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    Note that the C{listen_unix} method is *not* emulated, but rather inherited
    blindly from L{UnixReactorMixin}, this means that there's no way to control
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cCs|jd|dS(Ni(R9(RR>((s5/usr/lib/python2.7/dist-packages/landscape/reactor.pyREFscs#|jjfddS(s5Schedule a function for execution in the main thread.cs
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        Note that running threaded callbacks here doesn't reflect reality,
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        the same time, this is convenient as it means we don't need to run
        the the real Twisted reactor with to test actions performed on
        completion of specific events (e.g. L{MessageExchange.exchange} uses
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r}tj|qXqW|j|7_dS(sHAdvance this reactor C{seconds} into the future.

        This method is not part of the L{LandscapeReactor} API and is specific
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