Megatest

;;
;; NOTE: organise by dbfname, not run-id so we don't need
;;       to pull in more modules
;;
(define (tt:start-server areapath dbfname handler)
  ;; is there already a server for this dbfile? Then exit.
  (let* ((ttdat  (make-tt-srv areapath: areapath))
	 ;; (dbfname (dbmod:run-id->dbfname run-id))
	 (servers (tt:find-server ttdat dbfname)))
    (tt-srv-handler-set! ttdat handler)
    (if (null? servers)
	(begin
	  (tt:start-tcp-server ttdat) ;; start the tcp-server which applies handler to incoming data
	  (tt:keep-running ttdat dbfname))
	(begin

	   (servinf (conc servdir"/"host":"port"-"(current-process-id)":"dbfname))
	   (serv-id (tt:mk-signature areapath))
	   (clean-proc (lambda ()
			 (delete-file* servinf))))
      (tt-srv-cleanup-proc-set! ttdat clean-proc)
      (with-output-to-file servinf
	(lambda ()
	  (print "SERVER STARTED: "host":"port" AT "(current-seconds)" server-id: "serv-id" pid: "(current-process-id))))
      serv-id)))

;; find valid server
;; get servers listed, last part of name must match :<dbfname>
;; if more than one, wait one second and look again
;; future: ping oldest, if alive remove other :<dbfname> files
;;