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Comment:switched default transport back to http
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Timelines: family | ancestors | descendants | both | v1.62-rpc
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SHA1: 37f53d58abfc53de3635d5456dc37f2ab40279a2
User & Date: bjbarcla on 2016-12-09 17:25:06
Other Links: branch diff | manifest | tags
Context
2016-12-09
17:33
merged v1.62-rpc. Adds rpc transport capability but leaves default http.

NOTE: This commit appears to have broken the db sync-back to megatest.db. Moving this to side branch for repairs. check-in: c9ec425fc4 user: bjbarcla tags: v1.63-fix-db-sync

17:25
switched default transport back to http Closed-Leaf check-in: 37f53d58ab user: bjbarcla tags: v1.62-rpc
2016-12-08
14:54
made rpc default transport, not http. check-in: ee51b46291 user: bjbarcla tags: v1.62-rpc
Changes
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Modified common.scm from [98bfc33987] to [298d65055e].

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(define *db-access-mutex*     (make-mutex))
(define *db-cache-path*       #f)

;; SERVER
(define *my-client-signature* #f)
(define *transport-type*  #f)             ;; override with [server] transport http|rpc|nmsg

(define *DEFAULT-TRANSPORT* "http")
(define (common:set-transport-type)
  (set! *transport-type*
        (string->symbol
         (or
          (args:get-arg "-transport")
          (configf:lookup *configdat* "server" "transport")
          "rpc")))
          *DEFAULT-TRANSPORT*)))
  *transport-type*)
  
(define *runremote*         #f)                ;; if set up for server communication this will hold <host port>
(define *max-cache-size*    0)
(define *logged-in-clients* (make-hash-table))
(define *server-id*         #f)
(define *server-info*       #f)
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			      (debug:print 4 *default-log-port* " ... done")
			      )
			    "clean exit")))

      ;; let's try to clean up open sockets
      (if *runremote*
          (case (remote-transport *runremote*)
            ((http) (close-all-connections!))
            ((http) #t)
            ((rpc)  (rpc:close-all-connections!))
            (else
             (debug:print-info 0 *default-log-port* "Transport "(remote-transport *runremote*)" not supported"))))

      (thread-start! th1)
      (thread-start! th2)
      (thread-join! th1))))
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Modified http-transport.scm from [67f16e95fd] to [b18d5a6f65].

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				      (res #f))
				 (cond
				  ((equal? (uri-path (request-uri (current-request)))
					   '(/ "api"))
				   (send-response body:    (api:process-request *dbstruct-db* $) ;; the $ is the request vars proc
						  headers: '((content-type text/plain)))
				   (mutex-lock! *heartbeat-mutex*)
				   (set! *last-db-access* (current-seconds))
				   (set! *db-lastaccess* (current-seconds))
				   (mutex-unlock! *heartbeat-mutex*))
				  ((equal? (uri-path (request-uri (current-request))) 
					   '(/ ""))
				   (send-response body: (http-transport:main-page)))
				  ((equal? (uri-path (request-uri (current-request))) 
					   '(/ "json_api"))
				   (send-response body: (http-transport:main-page)))
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      (if (or (not (equal? sdat (list iface port)))
	      (not server-id))
	  (begin 
	    (debug:print-info 0 *default-log-port* "interface changed, refreshing iface and port info")
	    (set! iface (car sdat))
	    (set! port  (cadr sdat))))
      
      ;; Transfer *last-db-access* to last-access to use in checking that we are still alive
      ;; Transfer *db-last-access* to last-access to use in checking that we are still alive
      (mutex-lock! *heartbeat-mutex*)
      (set! last-access *last-db-access*)
      (set! last-access *db-last-access*)
      (mutex-unlock! *heartbeat-mutex*)

      ;; (debug:print 11 *default-log-port* "last-access=" last-access ", server-timeout=" server-timeout)
      ;;
      ;; no_traffic, no running tests, if server 0, no running servers
      ;;
      ;; (let ((wait-on-running (configf:lookup *configdat* "server" b"wait-on-running"))) ;; wait on running tasks (if not true then exit on time out)
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Modified rmt.scm from [a4b1443352] to [55635aac65].

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     ;; NOTE: we *have* a homehost record by now
     ((and (not (cdr (remote-hh-dat *runremote*)))        ;; are we on a homehost?
           (not (remote-conndat *runremote*)))            ;; and no connection
      (debug:print-info 12 *default-log-port* "rmt:send-receive, case  6  hh-dat: " (remote-hh-dat *runremote*) " conndat: " (remote-conndat *runremote*))
      (mutex-unlock! *rmt-mutex*)
      (tasks:start-and-wait-for-server (tasks:open-db) 0 15)
      (let* ((cinfo (rmt:get-connection-info 0))
             (transport (if cinfo
                            (vector-ref cinfo 6)
            (transport (vector-ref cinfo 6))) ;; TODO: replace with tasks:server-dat-accessor-?? for transport
                            (server:get-transport)))) ;; TODO: replace with tasks:server-dat-accessor-?? for transport
        (remote-conndat-set! *runremote* cinfo) ;; calls client:setup which calls client:setup-http
        (remote-transport-set! *runremote* transport))
      (rmt:send-receive cmd rid params attemptnum: attemptnum))
     ;; all set up if get this far, dispatch the query
     ((cdr (remote-hh-dat *runremote*)) ;; we are on homehost
      (mutex-unlock! *rmt-mutex*)
      (debug:print-info 12 *default-log-port* "rmt:send-receive, case  7")
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		(mutex-lock! *db-multi-sync-mutex*)
		(set! *db-last-write* start-time) ;; the oldest "write"
                (mutex-unlock! *db-multi-sync-mutex*)))))
    res))

(define (rmt:send-receive-no-auto-client-setup connection-info cmd run-id params)
  (let* ((run-id   (if run-id run-id 0))
         (transport (or (remote-transport *runremote*) (server:get-transport)))
	 (res  	   (handle-exceptions
		    exn
		    #f
                    (case (remote-transport *runremote*)
                    (case transport
                      ((http) (http-transport:client-api-send-receive run-id connection-info cmd params))
                      ((rpc) (rpc-transport:client-api-send-receive run-id connection-info cmd params))
                      (else
			  (debug:print 0 *default-log-port* "ERROR: transport " (remote-transport *runremote*) " not supported (2)")
			  (exit))

                    ))))
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Modified rpc-transport.scm from [1a12c353bd] to [a3a8e96335].

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  (set! *time-to-exit* #t)
  ;;(if *dbstruct-db* (db:sync-touched *dbstruct-db* *run-id* force-sync: #t))
  
  (server:remove-dotserver-file *toppath* "anyhost:anyport" force: #t)
  (tasks:server-delete-record (db:delay-if-busy (tasks:open-db)) server-id " rpc-transport:keep-running complete")
  

  (rpc:close-all-connections!)
  ;;(BB> "Before (exit) (from-on-exit="from-on-exit")")
  ;;(unless from-on-exit (exit))  ;; sometimes we hang (around) here with 100% cpu.
  ;;(BB> "After")
  ;; strace reveals endless:
  ;; getrusage(RUSAGE_SELF, {ru_utime={413, 917868}, ru_stime={0, 60003}, ...}) = 0
  ;; getrusage(RUSAGE_SELF, {ru_utime={414, 9874}, ru_stime={0, 60003}, ...}) = 0
  ;; getrusage(RUSAGE_SELF, {ru_utime={414, 13874}, ru_stime={0, 60003}, ...}) = 0
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;;
(define (rpc-transport:client-api-send-receive run-id serverdat cmd params #!key (numretries 3))
  ;;(BB> "entered rpc-transport:client-api-send-receive with run-id="run-id " serverdat="serverdat" cmd="cmd" params="params" numretries="numretries)
  (if (not (vector? serverdat))
      (begin
        (BB> "WHAT?? for run-id="run-id", serverdat="serverdat)
        (print-call-chain)
        (rpc:close-all-connections!)
        (exit 1)))
  (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))  ;; chached by host/port. may need to clear...
         (send-receive (lambda ()
                         (tcp-buffer-size 0)
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                         ))
         (th1 (make-thread send-receive "send-receive"))
         (time-out-reached #f)
         (time-out     (lambda ()
			      (thread-sleep! 45)
                              (set! time-out-reached #t)
                              (thread-terminate! th1)
                              
			      #f))

         (th2 (make-thread time-out     "time out")))
	 (thread-start! th1)
	 (thread-start! th2)
	 (thread-join! th1)
	 (thread-terminate! th2)
︙

Modified server.scm from [3d61545655] to [9cba9551df].

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;; Get the transport
(define (server:get-transport)
  (if *transport-type*
      *transport-type*
      (let ((ttype (string->symbol
		    (or (args:get-arg "-transport")
			(configf:lookup *configdat* "server" "transport")
			"rpc"))))
			*DEFAULT-TRANSPORT*))))
	(set! *transport-type* ttype)
	ttype)))
	    
;; Generate a unique signature for this server
(define (server:mk-signature)
  (message-digest-string (md5-primitive) 
			 (with-output-to-string
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