Megatest

	(begin
	  (file-copy from-db to-db)
	  (db:no-sync-del! no-sync-db keyname)
	  #t)
	#f)))

;; straight forward copy based sync
;;  1. for each .db fil
;;  2. next if file changed since last sync cycle
;;  2. next if time delta /tmp file to MTRA less than 3 seconds
;;  3. get a lock for the file in nosyncdb
;;  4. copy the file
;;  5. when copy is done release the lock
;;
;;  DONE
(define (server:writable-watchdog-copysync dbstruct)
  (thread-sleep! 0.05) ;; delay for startup
  (let ((legacy-sync        (common:run-sync?))
	(sync-stale-seconds (configf:lookup-number *configdat* "server" "sync-stale-seconds" default: 300))
 	(debug-mode         (debug:debug-mode 1))
 	(last-time          (current-seconds))     ;; last time through the sync loop
 	(no-sync-db         (db:open-no-sync-db))
 	(sync-duration      0)  ;; run time of the sync in milliseconds
	(tmp-area           (common:get-db-tmp-area)))
    (set! *no-sync-db* no-sync-db) ;; make the no sync db available to api calls
    (debug:print-info 2 *default-log-port* "Periodic copy-based sync thread started. sync is "legacy-sync", tmp-area is "tmp-area)
    (debug:print-info 3 *default-log-port* "watchdog starting. legacy-sync is "legacy-sync" pid="(current-process-id));;  " this-wd-num="this-wd-num)
    
    (if (and legacy-sync (not *time-to-exit*))
 	(begin
 	  (debug:print-info 0 *default-log-port* "Server running, periodic copy-based sync started.")
	  (let loop ()
 	    ;; sync for filesystem local db writes
 	    ;;
	    (let* ((dbfiles    (glob (conc tmp-area"/.db/*.db"))))
	      (debug:print-info 0 "dbfiles: "dbfiles)
	      (for-each
	       (lambda (file)
		 (let* ((fname (pathname-file file))
			(fulln (conc *top-level*"/.db/"fname))
			(time1 (file-modification-time fname))
			(time2 (file-modification-time fulln))
			(changed (>= time1 time2))
			(do-cp (cond
				((not (file-exists? fulln)) ;; shouldn't happen, but this might recover
				 (debug:print-info 0 "File "fulln" not found! Copying "fname" to "fulln)
				 #t)
				(changed ;; (and changed
				 ;; (> (- (current-seconds) time1) 3)) ;; if file is changed and three seconds have passed.
				 #t)
				((and changed *time-to-exit*) ;; last copy
				 #t)
				(else
				 #f))))
		   (debug:print-info 0 "file: "file", fname: "fname", time1: "time1", time2: "time2)
		   (if do-cp
		       (let* ((start-time (current-milliseconds)))
			 (db:lock-and-sync no-sync-db fname fulln)
			 (set! sync-duration (- (current-milliseconds) start-time)))
		       (debug:print-info 0 "skipping sync..."))))
	       dbfile))
	    ;; keep going unless time to exit
	    ;;
	    (if (not *time-to-exit*)
		(let delay-loop ((count 0))
		  ;;(debug:print-info 13 *default-log-port* "delay-loop top; count="count" pid="(current-process-id)" this-wd-num="this-wd-num" *time-to-exit*="*time-to-exit*)
		  

	  (let ((new-iface (car sdat))
		(new-port  (cadr sdat)))
	    (debug:print-info 0 *default-log-port* "WARNING: interface changed, refreshing iface and port info")
	    (set! iface new-iface)
	    (set! port  new-port)
             (if (not *server-id*)
              (set! *server-id* (server:mk-signature)))
            (debug:print-info 0 *default-log-port* (current-seconds)" "(current-directory)" " (current-process-id) (argv))
	    (debug:print 0 *default-log-port* "SERVER STARTED: " iface ":" port " AT " (current-seconds) " server-id: " *server-id*)
	    (flush-output *default-log-port*)))
      
      ;; Transfer *db-last-access* to last-access to use in checking that we are still alive
      (mutex-lock! *heartbeat-mutex*)
      (set! last-access *db-last-access*)
      (mutex-unlock! *heartbeat-mutex*)