Function read_switch 

pub fn read_switch(here: &str) -> Switch

The switch as every reader on this device reads it: the file, the devices gone from the sharing read as Switch::counted says (here: this device’s id, kept as it is; “” where it is not known, the gone being others always). The window, the listener, the calls’ table, sioul remind --watch, sioul watch and the MCP read it so (F1, F7).