/* conn.c */Conn*	connmk(char*, void(*)(Conn*));int	connwrite(Conn*, char*, ...);void	connproc(void*);	/* Conn* */ /* util.c */u64int	jenkinshash(char*, int);void	riolabel(char*);void	rioclose(void);int	riowindow(char*); /* wind.c */Wind	*windmk(char*);void	windfree(Wind*);void	windlink(Wind*, Wind*);void	windunlink(Wind*, Wind*);Wind*	windfind(Wind*, char*);void	windappend(Wind*, char*, ...);