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;; S E R V E R
;;======================================================================
;; Call this to start the actual server
;;
(define *db:process-queue-mutex* (make-mutex))
(define (server:run hostn)
(debug:print 2 "Attempting to start the server ...")
(if (not *toppath*)
(if (not (setup-for-run))
(begin
(debug:print 0 "ERROR: cannot find megatest.config, cannot start server, exiting")
(exit))))
(let* (;; (iface (if (string=? "-" hostn)
;; #f ;; (get-host-name)
;; hostn))
(db #f) ;; (open-db)) ;; we don't want the server to be opening and closing the db unnecesarily
(hostname (get-host-name))
(ipaddrstr (let ((ipstr (if (string=? "-" hostn)
(string-intersperse (map number->string (u8vector->list (hostname->ip hostname))) ".")
#f)))
(if ipstr ipstr hostn))) ;; hostname)))
(start-port (if (args:get-arg "-port")
(string->number (args:get-arg "-port"))
(+ 5000 (random 1001))))
(link-tree-path (config-lookup *configdat* "setup" "linktree")))
(set! *cache-on* #t)
(root-path (if link-tree-path
link-tree-path
(current-directory))) ;; WARNING: SECURITY HOLE. FIX ASAP!
;; Setup the web server and a /ctrl interface
;;
(vhost-map `(((* any) . ,(lambda (continue)
;; open the db on the first call
(if (not db)(set! db (open-db)))
(let* (($ (request-vars source: 'both))
(dat ($ 'dat))
(res #f))
(cond
((equal? (uri-path (request-uri (current-request)))
'(/ "hey"))
(send-response body: "hey there!\n"
headers: '((content-type text/plain))))
;; This is the /ctrl path where data is handed to the server and
;; responses
((equal? (uri-path (request-uri (current-request)))
'(/ "ctrl"))
(let* ((packet (db:string->obj dat))
(qtype (cdb:packet-get-qtype packet)))
(debug:print-info 12 "server=> received packet=" packet)
(if (not (member qtype '(sync ping)))
(begin
(mutex-lock! *heartbeat-mutex*)
(set! *last-db-access* (current-seconds))
(mutex-unlock! *heartbeat-mutex*)))
;; (mutex-lock! *db:process-queue-mutex*) ;; trying a mutex
;; (set! res (open-run-close db:process-queue-item open-db packet))
(set! res (db:process-queue-item db packet))
;; (mutex-unlock! *db:process-queue-mutex*)
(debug:print-info 11 "Return value from db:process-queue-item is " res)
(send-response body: (conc "<head>ctrl data</head>\n<body>"
res
"</body>")
headers: '((content-type text/plain)))))
(else (continue))))))))
(server:try-start-server ipaddrstr start-port)
;; lite3:finalize! db)))
))
(define (server:mk-signature)
(message-digest-string (md5-primitive)
(with-output-to-string
(lambda ()
(write (list (current-directory)
(argv)))))))
;;======================================================================
;; S E R V E R U T I L I T I E S
;;======================================================================
;; When using zmq this would send the message back (two step process)
;; with spiffy or rpc this simply returns the return data to be returned
;;
(define (server:reply return-addr query-sig success/fail result)
(debug:print-info 11 "server:reply return-addr=" return-addr ", result=" result)
;; (send-message pubsock target send-more: #t)
;; (send-message pubsock
(case *transport-type*
((fs) result)
((http)(db:obj->string (vector success/fail query-sig result)))
((zmq)
(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)))
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;; S E R V E R
;;======================================================================
;; Call this to start the actual server
;;
(define *db:process-queue-mutex* (make-mutex))
;; 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")
|