235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
-
+
|
dconn
(< (current-seconds)(conndat-expires dconn)))
#t) ;; good to go
((not mconn) ;; no channel open to main? open it...
(rmt:open-main-connection sinfo apath)
(rmt:general-open-connection sinfo apath dbname num-tries: (- num-tries 1)))
((not dconn) ;; no channel open to dbname?
(let* ((res (rmt:send-receive sinfo apath mdbname 'get-server `(,apath ,dbname))))
(let* ((res (rmt:send-receive-real sinfo apath mdbname 'get-server `(,apath ,dbname))))
(case res
((server-started)
(if (> num-tries 0)
(begin
(thread-sleep! 2)
(rmt:general-open-connection sinfo apath dbname num-tries: (- num-tries 1)))
(begin
|
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
|
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
|
-
+
|
;; FOR DEBUGGING SET TO #t
;; (define *localmode* #t)
(define *localmode* #f)
(define *dbstruct* (make-dbr:dbstruct))
;; Defaults to current area
;;
(define (rmt:send-receive cmd rid params #!key (attemptnum 1)(area-dat #f))
(define (rmt:send-receive-attempted-consolidation cmd rid params #!key (attemptnum 1)(area-dat #f))
(let* ((apath *toppath*)
(sinfo *db-serv-info*)
(dbname (db:run-id->dbname rid)))
(if (not *db-serv-info*)
(begin
(set! *db-serv-info* (make-servdat))
(set! sinfo *db-serv-info*)))
|
309
310
311
312
313
314
315
316
317
318
319
320
321
322
|
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
|
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
|
;; then send-receive using the ulex layer to host-port stored in cdat
(res (send-receive uconn (conndat-hostport cdat) cmd params)))
(conndat-expires-set! cdat (+ (current-seconds)
(server:expiration-timeout)
-2)) ;; two second margin for network time misalignments etc.
res))))
; Defaults to current area
;;
(define (rmt:send-receive cmd rid params #!key (attemptnum 1)(area-dat #f))
(let* ((apath *toppath*)
(sinfo *db-serv-info*)
(dbname (db:run-id->dbname rid)))
(if (not *db-serv-info*) ;; confirm this is really needed
(begin
(set! *db-serv-info* (make-servdat))
(set! sinfo *db-serv-info*)))
(rmt:open-main-connection sinfo apath)
(if rid (rmt:general-open-connection sinfo apath dbname))
#;(if (not (member cmd '(log-to-main)))
(debug:print-info 0 *default-log-port* "rmt:send-receive "cmd" params="params))
(rmt:send-receive-real sinfo apath dbname cmd params)))
;; db is at apath/.db/dbname, rid is an intermediary solution and will be removed
;; sometime in the future
;;
(define (rmt:send-receive-real sinfo apath dbname cmd params)
(let* ((cdat (rmt:get-conn sinfo apath dbname)))
(assert cdat "FATAL: rmt:send-receive-real called without the needed channels opened")
(let* ((uconn (servdat-uconn sinfo)) ;; get the interface to ulex
;; then send-receive using the ulex layer to host-port stored in cdat
(res (send-receive uconn (conndat-hostport cdat) cmd params)))
;; since we accessed the server we can bump the expires time up
(conndat-expires-set! cdat (+ (current-seconds)
(server:expiration-timeout)
-2)) ;; two second margin for network time misalignments etc.
res)))
;
;; db is at apath/.db/dbname, rid is an intermediary solution and will be removed
;; sometime in the future.
;;
;; Purpose - call the main.db server and request a server be started
;; for the given area path and dbname
;;
|
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
|
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
|
-
+
-
+
|
sdat
(servdat-host sdat)
(servdat-port sdat)))))))))
(define (rmt:register-server sinfo apath iface port server-key dbname)
(servdat-conns sinfo) ;; just checking types
(rmt:open-main-connection sinfo apath) ;; we need a channel to main.db
(rmt:send-receive sinfo apath ;; params: host port servkey pid ipaddr dbpath
(rmt:send-receive-real sinfo apath ;; params: host port servkey pid ipaddr dbpath
(db:run-id->dbname #f)
'register-server `(,iface
,port
,server-key
,(current-process-id)
,iface
,apath
,dbname)))
(define (rmt:get-count-servers sinfo apath)
(servdat-conns sinfo) ;; just checking types
(rmt:open-main-connection sinfo apath) ;; we need a channel to main.db
(rmt:send-receive sinfo apath ;; params: host port servkey pid ipaddr dbpath
(rmt:send-receive-real sinfo apath ;; params: host port servkey pid ipaddr dbpath
(db:run-id->dbname #f)
'get-count-servers `(,apath)))
(define (rmt:get-servers-info apath)
(rmt:send-receive 'get-servers-info #f `(,apath)))
(define (rmt:deregister-server db-serv-info apath iface port server-key dbname)
|