Megatest

     (let ((pub-socket (vector-ref *runremote* 1)))
       (send-message pub-socket return-addr send-more: #t)
       (send-message pub-socket (db:obj->string (vector success/fail query-sig result)))))
    (else 
     (debug:print 0 "ERROR: unrecognised transport type: " *transport-type*)
     result)))

;;======================================================================
;; C L I E N T S
;;======================================================================

(define (server:get-client-signature)
  (if *my-client-signature* *my-client-signature*
      (let ((sig (server:mk-signature)))
	(set! *my-client-signature* sig)
	*my-client-signature*)))

(define (server:client-login serverdat)
  (cdb:login serverdat *toppath* (server:get-client-signature)))

;; Not currently used! But, I think it *should* be used!!!
(define (server:client-logout serverdat)
  (let ((ok (and (socket? serverdat)
		 (cdb:logout serverdat *toppath* (server:get-client-signature)))))
    ok))

;; Do all the connection work, look up the transport type and set up the
;; connection if required.
;;
;; There are two scenarios. 
;;   1. We are a test manager and we received *transport-type* and *runremote* via cmdline
;;   2. We are a run tests, list runs or other interactive process and we mush figure out
;;      *transport-type* and *runremote* from the monitor.db
;;
(define (server:client-setup #!key (numtries 50))
  (if (not *toppath*)
      (if (not (setup-for-run))
	  (begin
	    (debug:print 0 "ERROR: failed to find megatest.config, exiting")
	    (exit))))
  (debug:print-info 11 "*transport-type* is " *transport-type* ", *runremote* is " *runremote*)
  (let* ((hostinfo  (if (not *transport-type*) ;; If we dont' already have transport type set then figure it out
			(open-run-close tasks:get-best-server tasks:open-db)
			#f)))
    ;; if have hostinfo then extract the transport type 
    ;; else fall back to fs
    (debug:print-info 11 "CLIENT SETUP, hostinfo=" hostinfo)
    (set! *transport-type* (if hostinfo 
    			       (string->symbol (tasks:hostinfo-get-transport hostinfo))
			       'fs))
    ;; ;; DEBUG STUFF
    ;; (if (eq? *transport-type* 'fs)(begin (print "ERROR!!!!!!! refusing to run with transport " *transport-type*)(exit 99)))
    
    (debug:print-info 11 "Using transport type of " *transport-type* (if hostinfo (conc " to connect to " hostinfo) ""))
    (case *transport-type* 
      ((fs)(if (not *megatest-db*)(set! *megatest-db* (open-db))))
      ((http)
       (http-transport:client-connect (tasks:hostinfo-get-interface hostinfo)
				      (tasks:hostinfo-get-port hostinfo)))
      ((zmq)
       (zmq-transport:client-connect (tasks:hostinfo-get-interface hostinfo)
				     (tasks:hostinfo-get-port      hostinfo)
				     (tasks:hostinfo-get-pubport   hostinfo)))
      (else  ;; default to fs
       (debug:print 0 "ERROR: unrecognised transport type " *transport-type* " attempting to continue with fs")
       (set! *transport-type* 'fs)
       (set! *megatest-db*    (open-db))))))


;; all routes though here end in exit ...
(define (server:launch transport)
  (if (not *toppath*)
      (if (not (setup-for-run))
	  (begin
	    (debug:print 0 "ERROR: cannot find megatest.config, exiting")
	    (exit))))
  (debug:print-info 2 "Starting server using " transport " transport")
  (set! *transport-type* transport)
  (case transport
    ((fs)   (exit)) ;; there is no "fs" transport
    ((http) (http-transport:launch))
    ((zmq)  (zmq-transport:launch))
    (else
     (debug:print "WARNING: unrecognised transport " transport)
     (exit))))

(define (server:client-signal-handler signum)
  (handle-exceptions
   exn
   (debug:print " ... exiting ...")
   (let ((th1 (make-thread (lambda ()
			     "") ;; do nothing for now (was flush out last call if applicable)
			   "eat response"))
	 (th2 (make-thread (lambda ()
			     (debug:print 0 "ERROR: Received ^C, attempting clean exit. Please be patient and wait a few seconds before hitting ^C again.")
			     (thread-sleep! 1) ;; give the flush one second to do it's stuff
			     (debug:print 0 "       Done.")
			     (exit 4))
			   "exit on ^C timer")))
     (thread-start! th2)
     (thread-start! th1)
     (thread-join! th2))))

(define (server:client-launch)
  (set-signal-handler! signal/int server:client-signal-handler)
   (if (server:client-setup)
       (debug:print-info 2 "connected as client")
       (begin
	 (debug:print 0 "ERROR: Failed to connect as client")
	 (exit))))