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Comment:problems with -daemonize
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SHA1: da14d4a8a40237b8fd4fdb41e75351ca7ff29298
User & Date: bjbarcla on 2016-11-11 17:12:42
Other Links: branch diff | manifest | tags
Context
2016-11-14
15:47
removed -daemonize when starting server; removed local fallback in rmt:send-receive check-in: a31c1d5781 user: bjbarcla tags: rpc-transport
2016-11-11
17:12
problems with -daemonize check-in: da14d4a8a4 user: bjbarcla tags: rpc-transport
15:46
wip check-in: 1d35a89202 user: bjbarcla tags: rpc-transport
Changes
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Modified rpc-transport.scm from [af5f073564] to [5d1e126bbe].

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(define (rpc-transport:server-dat-update-last-access vec)
  (if (vector? vec)
      (vector-set! vec 5 (current-seconds))
      (begin
	(print-call-chain (current-error-port))
	(debug:print-error 0 *default-log-port* "call to rpc-transport:server-dat-update-last-access with non-vector!!"))))













;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; this client-side procedure makes rpc call to server and returns result
;;
(define (rpc-transport:client-api-send-receive run-id serverdat cmd params #!key (numretries 3))


  (let* ((iface (rpc-transport:server-dat-get-iface serverdat))
         (port  (rpc-transport:server-dat-get-port serverdat))
         (res #f)
         (run-remote (rpc:procedure 'rpc-transport:autoremote iface port))
         (api-exec (rpc:procedure 'api-exec iface port))
         (send-receive (lambda ()
                         (tcp-buffer-size 0)
                         (set! res (retry-thunk
                                    (lambda ()
                                      (condition-case
                                       ;;(vector #t (run-remote cmd params))
                                       (vector 'success (api-exec cmd params))








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(define (rpc-transport:server-dat-update-last-access vec)
  (if (vector? vec)
      (vector-set! vec 5 (current-seconds))
      (begin
	(print-call-chain (current-error-port))
	(debug:print-error 0 *default-log-port* "call to rpc-transport:server-dat-update-last-access with non-vector!!"))))


(define *api-exec-ht* (make-hash-table))

;; let's see if caching the rpc stub curbs thread-profusion on server side
(define (rpc-transport:get-api-exec iface port)
  (let* ((lu (hash-table-ref/default *api-exec-ht* '(iface . port) #f)))
    (if lu
        lu
        (let ((res (rpc:procedure 'api-exec iface port)))
          (hash-table-set! *api-exec-ht* '(iface . port) res)
          res))))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; this client-side procedure makes rpc call to server and returns result
;;
(define (rpc-transport:client-api-send-receive run-id serverdat cmd params #!key (numretries 3))
  (if (not (vector? serverdat))
      (BB> "WHAT?? for run-id="run-id", serverdat="serverdat))
  (let* ((iface (rpc-transport:server-dat-get-iface serverdat))
         (port  (rpc-transport:server-dat-get-port serverdat))
         (res #f)

         (api-exec (rpc-transport:get-api-exec iface port))  
         (send-receive (lambda ()
                         (tcp-buffer-size 0)
                         (set! res (retry-thunk
                                    (lambda ()
                                      (condition-case
                                       ;;(vector #t (run-remote cmd params))
                                       (vector 'success (api-exec cmd params))
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    ;;=============================================================
    (thread-start! th1)
    (set! db *inmemdb*)

    (debug:print 0 *default-log-port* "Server started on " host:port)
    

    (thread-sleep! 2)
    (if (rpc-transport:self-test run-id ipaddrstr portnum)
        (debug:print 0 *default-log-port* "INFO: rpc self test passed!")
        (begin
          (debug:print 0 *default-log-port* "Error: rpc listener did not pass self test.  Shutting down.  On: " host:port)
          (exit)))
    
    (on-exit (lambda ()








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    ;;=============================================================
    (thread-start! th1)
    (set! db *inmemdb*)

    (debug:print 0 *default-log-port* "Server started on " host:port)
    

    (thread-sleep! 4)
    (if (rpc-transport:self-test run-id ipaddrstr portnum)
        (debug:print 0 *default-log-port* "INFO: rpc self test passed!")
        (begin
          (debug:print 0 *default-log-port* "Error: rpc listener did not pass self test.  Shutting down.  On: " host:port)
          (exit)))
    
    (on-exit (lambda ()
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                  (begin
                    (if (common:low-noise-print 120 "server continuing")
                        (debug:print-info 0 *default-log-port* "Server continuing, seconds since last db access: " (- (current-seconds) last-access)))
                    ;;
                    ;; Consider implementing some smarts here to re-insert the record or kill self is
                    ;; the db indicates so
                    ;;
                    ;; (if (tasks:server-am-i-the-server? tdb run-id)
                    ;;     (tasks:server-set-state! tdb server-id "running"))
                    ;;
                    (loop 0 bad-sync-count))
                  (begin
                    (BB> "SERVER SHUTDOWN CALLED!  last-access="last-access" current-seconds="(current-seconds)" server-timeout="server-timeout)
                    (rpc-transport:server-shutdown server-id rpc:listener)))))
          ;; end new loop
          ))))








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                  (begin
                    (if (common:low-noise-print 120 "server continuing")
                        (debug:print-info 0 *default-log-port* "Server continuing, seconds since last db access: " (- (current-seconds) last-access)))
                    ;;
                    ;; Consider implementing some smarts here to re-insert the record or kill self is
                    ;; the db indicates so
                    ;;
                    (if (tasks:bb-server-am-i-the-server? run-id)
                        (tasks:bb-server-set-state! server-id "running"))
                    ;;
                    (loop 0 bad-sync-count))
                  (begin
                    (BB> "SERVER SHUTDOWN CALLED!  last-access="last-access" current-seconds="(current-seconds)" server-timeout="server-timeout)
                    (rpc-transport:server-shutdown server-id rpc:listener)))))
          ;; end new loop
          ))))
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   (tcp-listen (rpc:default-server-port) 10000)
   ))
  
(define (rpc-transport:ping run-id host port)
  (handle-exceptions
   exn
   (begin
     (print "SERVER_NOT_FOUND")
     (exit 1))
   (let ((login-res ((rpc:procedure 'server:login host port) *toppath*)))
     (if login-res
	 (begin
	   (print "LOGIN_OK")
	   (exit 0))
	 (begin








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   (tcp-listen (rpc:default-server-port) 10000)
   ))
  
(define (rpc-transport:ping run-id host port)
  (handle-exceptions
   exn
   (begin
     (print "SERVER_NOT_FOUND exn="exn)
     (exit 1))
   (let ((login-res ((rpc:procedure 'server:login host port) *toppath*)))
     (if login-res
	 (begin
	   (print "LOGIN_OK")
	   (exit 0))
	 (begin
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Modified server.scm from [975fdc3c54] to [6406fc4f02].

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	;; client:start returns #t if login was successful.
	;;
	(let* ((transport-type (rmt:run-id->transport-type run-id))
               (res (case transport-type
		     ((http)(server:ping-server run-id 
						(tasks:hostinfo-get-interface server)
						(tasks:hostinfo-get-port      server)))


                     ((rpc) ((rpc:procedure 'server:login (tasks:hostinfo-get-interface server) (tasks:hostinfo-get-port      server)) *toppath*))
                     
                     (else  
                      (debug:print-error 0 *default-log-port* "(5) Transport [" transport-type
                                         "] specified for run-id [" run-id
                                         "] is not implemented in rmt:send-receive.  Cannot proceed.")
                      (exit 1)))))
	  ;; if the server didn't respond we must remove the record
	  (if res








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	;; client:start returns #t if login was successful.
	;;
	(let* ((transport-type (rmt:run-id->transport-type run-id))
               (res (case transport-type
		     ((http)(server:ping-server run-id 
						(tasks:hostinfo-get-interface server)
						(tasks:hostinfo-get-port      server)))
                     ((rpc) (rpc-transport:ping  run-id 
                                                 (tasks:hostinfo-get-interface server)
                                                 (tasks:hostinfo-get-port      server)))
                    
                     (else  
                      (debug:print-error 0 *default-log-port* "(5) Transport [" transport-type
                                         "] specified for run-id [" run-id
                                         "] is not implemented in rmt:send-receive.  Cannot proceed.")
                      (exit 1)))))
	  ;; if the server didn't respond we must remove the record
	  (if res
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