-unsigned bus_dispatch(Manager *m);
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-void bus_watch_event(Manager *m, Watch *w, int events);
-void bus_timeout_event(Manager *m, Watch *w, int events);
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-int bus_query_pid(Manager *m, const char *name);
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-int bus_broadcast(Manager *m, DBusMessage *message);
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-bool bus_has_subscriber(Manager *m);
-bool bus_connection_has_subscriber(Manager *m, DBusConnection *c);
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