pub(crate) fn close_inherited_fds()Expand description
Close file descriptors inherited from whatever started us.
conmon-rs daemonizes and outlives the process that spawned it, so any descriptor it inherits stays open for the lifetime of the server. If the spawning process was itself started with extra descriptors open, holding them can keep that process tree from ever finishing, for example a test harness waiting for its own pipe to close.
conmon does the same thing, see close_all_fds_ge_than(3) there. Any
descriptor conmon-rs actually needs is created after this point, so
nothing above stderr is worth keeping.