Megatest

(define (tt:make-remote areapath)
  (make-tt areapath: areapath))

;; do all the busy work of finding and setting up conn for
;; connecting to a server
;; 
(define (tt:client-connect-to-server ttdat dbfname run-id testsuite)
  (let* ((conn (hash-table-ref/default (tt-conns ttdat) dbfname #f))
	 (server-start-proc (lambda ()
			      (tt:server-process-run
			       (tt-areapath ttdat)
			       testsuite ;; (dbfile:testsuite-name)
			       (common:find-local-megatest)
			       run-id))))
    (if conn
	conn ;; we are already connected to the server
	(let* ((sdat (tt:get-current-server-info ttdat dbfname run-id)))
	  (match sdat
	    ((host port start-time server-id pid dbfname2)

	       ;; verify we can talk to this server
	       (if (tt:ping host port server-id)
		   conn
		   (begin
		     ;; rm the (last server) would go here
		     (server-start-proc)
		     (thread-sleep! 1)
		     (tt:client-connect-to-server ttdat dbfname run-id testsuite)))))
	    (else
	     (server-start-proc)
	     (thread-sleep! 1)
	     (tt:client-connect-to-server ttdat dbfname run-id testsuite)))))))
    
(define (tt:ping host port server-id)
  (let*  ((res (tt:send-receive-direct host port `(ping #f #f #f)))) ;; please send me your server-id
    ;;
    ;; need two threads, one a 5 second timer
    ;;
    (match res

       (debug:print 0 *default-log-port* "res not in form (status errmsg resutl meta), got: "res)
       #f))))

;; client side handler
;;
(define (tt:handler ttdat cmd run-id params attemptnum area-dat areapath readonly-mode dbfname testsuite mtexe)
  ;; NOTE: areapath is passed in and in tt struct. We'll use passed in value for now.
  (let* ((conn (tt:client-connect-to-server ttdat dbfname run-id testsuite))) ;; (hash-table-ref/default (tt-conns ttdat) dbfname #f)))
    (if conn
	;; have connection, call the server
	(let* ((res (tt:send-receive ttdat conn cmd run-id params)))
	  ;; res is (status errmsg result meta)
	  (match res
	    ((status errmsg result meta)
	     (case status

;; Given an area path,  start a server process    ### NOTE ### > file 2>&1 
;; if the target-host is set 
;; try running on that host
;;   incidental: rotate logs in logs/ dir.
;;
(define  (tt:server-process-run areapath testsuite mtexe run-id #!key (profile-mode "")) ;; areapath is *toppath* for a given testsuite area
  (assert areapath  "FATAL: tt:server-process-run called without areapath defined.")
  (assert testsuite "FATAL: tt:server-process-run called without testsuite defined.")
  (assert mtexe     "FATAL: tt:server-process-run called without mtexe defined.")
  (let* ((logfile   (conc areapath "/logs/server.log")) ;; -" curr-pid "-" target-host ".log"))
	 (cmdln     (conc
		     mtexe
		     " -server - ";; (or target-host "-")
		     " -m testsuite:" testsuite
		     " -run-id " (or run-id "main")
		     " -db "  (dbmod:run-id->dbfname run-id)
		     " " profile-mode
		     ))) ;; (conc " >> " logfile " 2>&1 &")))))
    ;; we want the remote server to start in *toppath* so push there
    ;; (push-directory areapath) ;; use cd in the command line instead
    (debug:print 0 *default-log-port* "INFO: Trying to start server in tcp mode (" cmdln ") at "(common:human-time)"...")
    ;; (debug:print 0 *default-log-port* "INFO: starting server at " (common:human-time))
    (setenv "NBFAKE_QUIET" "yes") ;; BUG: change to with-environment-variable ...
    (system (conc "cd "areapath" ; nbfake " cmdln))
    (unsetenv "NBFAKE_QUIET")
    ;;(pop-directory)
    ))

;;======================================================================
;; tcp connection stuff
;;======================================================================

;; find a port and start tcp-server. This only starts the tcp portion of
;; the server, look at (tt:start-server ...) above for the entry point