Megatest

   (dboard:commondat-tabdats commondat)
   tabnum
   tabdat))

;; gets and calls updater list based on curr-tab-num
;;
(define (dboard:common-run-curr-updaters commondat #!key (tab-num #f))
  ;; (sync-db-to-tmp (dboard:common-get-tabdat commondat tab-num: tab-num)) ;; no longer applies
  (if (dboard:common-get-tabdat commondat tab-num: tab-num) ;; only update if there is a tabdat
      (let* ((tnum     (or tab-num (dboard:commondat-curr-tab-num commondat)))
	     (updaters (hash-table-ref/default (dboard:commondat-updaters commondat)
					       tnum
					       '())))
	(debug:print 4 *default-log-port* "Found these updaters: " updaters " for tab-num: " tnum)
	(for-each ;; perform the function calls for the complete updaters list

                        ;;(dboard:tabdat-filters-changed tabdat))
                        0
                        (dboard:rundat-last-update run-dat)))
	 (last-db-time (if do-not-use-db-file-timestamps
			   0
			   (dboard:rundat-last-db-time run-dat)))
	 (db-path      (or (dboard:rundat-db-path run-dat)
			   (let* ((db-dir (get-environment-variable "MT_RUN_AREA_HOME")) ;;  (common:get-db-tmp-area))
				  (db-pth (conc db-dir "/.mtdb/main.db")))
			     (dboard:rundat-db-path-set! run-dat db-pth)
			     db-pth)))
	 (db-mod-time  (common:lazy-sqlite-db-modification-time db-path))
	 (db-modified  (>= db-mod-time last-db-time))
	 (multi-get    (> (dboard:rundat-run-data-offset run-dat) 0))  ;; multi-get in progress
	 (tmptests     (if (or do-not-use-db-file-timestamps
			       (dboard:tabdat-filters-changed tabdat)

;;======================================================================

(stop-the-train)

(define (main)
  ;; (print "Starting dashboard main")
    
  (let* ((mtdb-path (conc *toppath* "/.mtdb/main.db"))
         (target (args:get-arg "-target"))
         (commondat       (dboard:commondat-make)))
    (if target
        (begin
          (args:remove-arg-from-ht "-target")
          (dboard:commondat-target-set! commondat target)
        )

			       (file-read-access? f))
			  (file-modification-time f)
			  0))))
    (max (get-mtime fname)
	 (get-mtime wal-file)
	 (get-mtime shm-file))))
	 
;; (define (db:all-db-sync dbstruct)
;;   (let* ((dbdat (db:open-db dbstruct #f db:initialize-main-db))
;; 	 (data-synced       0) ;; count of changed records
;;     (tmp-area       (common:get-db-tmp-area))
;;     (dbfiles        (glob (conc tmp-area"/.megatest/*.db")))
;;     (sync-durations (make-hash-table))
;;     (no-sync-db        (db:open-no-sync-db)))
;;     (for-each
;;      (lambda (file) ;; tmp db file
;;        (debug:print-info 3 *default-log-port* "file: " file)
;;        (let* ((fname       (conc (pathname-file file) ".db")) ;; fname is tmp db file
;;               (wal-file (conc fname "-wal"))
;;               (shm-file (conc fname "-shm"))
;; 	      (fulln       (conc *toppath*"/.megatest/"fname)) ;; fulln is nfs db name
;;               (wal-time     (if (file-exists? wal-file)             
;; 			       (file-modification-time wal-file)
;;                                0))
;;               (shm-time     (if (file-exists? shm-file)             
;; 			       (file-modification-time shm-file)
;;                                0))
;; 	      (time1        (db:get-sqlite3-mod-time file))
;; ;;	       (if (file-exists? file)              ;; time1 is the max itime of the tmp db, -wal and -shm files.
;; ;;			       (max (file-modification-time file) wal-time shm-time)
;; ;;			       (begin
;; ;;				 (debug:print-info 2 *default-log-port* "Sync - I do not see file "file)
;; ;;			   1)))
;; 	      (time2       (db:get-sqlite3-mod-time fulln))
;; ;;	      (if (file-exists? fulln)             ;; time2 is nfs file time
;; ;;			       (file-modification-time fulln)
;; ;;			       (begin
;; ;;				 (debug:print-info 2 *default-log-port* "Sync - I do not see file "fulln)
;; ;;				 0)))
;; 	      (changed      (> (- time1 time2) (+ (random 5) 1)))  ;; it has been at some few seconds since last synced
;; 	      (changed10    (> (- time1 time2) 10)) ;; it has been at least ten seconds since sync'd
;; 	      (jfile-exists (file-exists? (conc file"-journal"))) ;; i.e. are we busy?
;; 	      (do-cp        (cond
;; 			     ((not (file-exists? fulln)) ;; shouldn't happen, but this might recover
;; 			      (cons #t (conc "File "fulln" not found! Copying "fname" to "fulln)))
;; 			     ((and (not jfile-exists) changed)
;; 			      (cons #t "not busy, changed")) ;; not busy and changed
;; 			     ((and jfile-exists changed10)
;; 			      (cons #t "busy but not synced in a while")) ;; busy but not sync'd in over 10 seconds
;; 			     ((and changed *time-to-exit*)
;; 			      (cons #t "Time to exit, forced final sync")) ;; last sync
;; 			     (else
;; 			      (cons #f "No sync needed")))))
;; 	 (if (car do-cp)
;; 	     (let* ((start-time (current-milliseconds))
;; 		    (fname (pathname-file file))
;; 		    (runid (if (string= fname "main") #f (string->number fname))))
;; 	       (debug:print-info 3 *default-log-port* "db:all-db-sync: fname: "
;; 				 fname", delta: " (- time1 time2) " seconds, reason: "(cdr do-cp))
;; 	       (db:lock-and-delta-sync no-sync-db dbstruct fname runid (db:get-keys dbstruct) db:initialize-main-db)
;; 	       (hash-table-set! sync-durations (conc fname".db")
;; 				(- (current-milliseconds) start-time)))
;; 	     (debug:print-info 3 *default-log-port* "skipping sync. " file " is up to date")
;;          )))
;;      dbfiles)
;;     ;; WHY does the dbdat need to be added back?
;;     (if dbdat (dbfile:add-dbdat dbstruct #f dbdat))

;;     )
;;   #t)

(define (db:kill-servers)
  (let* ((servers (server:choose-server *toppath* 'all-valid))) ;; (server:get-list *toppath*))
    (for-each
     (lambda (server)
       (handle-exceptions
           exn

   ((number? run-id)
    (modulo run-id (num-run-dbs)))
   ((not run-id) "main")   ;; 0 or main?
   (else run-id)))

;; POTENTIAL BUG: this implementation could produce a db file if run-id is neither #f or a number
(define (dbfile:run-id->dbname run-id)
  (conc ".mtdb/"(dbfile:run-id->dbnum run-id)".db"))

;; Make the dbstruct, setup up auxillary db's and call for main db at least once
;;
;; called in http-transport and replicated in rmt.scm for *local* access. 
;;
(define (dbfile:setup do-sync areapath tmppath)
  (cond