Megatest

		)) ;; we can safely cache megatest.config since we have a valid runconfig
	  data))))

;;======================================================================
;; TODO: for multiple areas, we will have multiple watchdogs; and multiple threads to manage
(define (common:watchdog)
  (debug:print-info 13 *default-log-port* "common:watchdog entered.")
  (assert *toppath* "common:watchdog started before *toppath* is set")
  (let* ((start-time (current-seconds))
	 (am-server  (args:get-arg "-server"))
	 (dbfile     (args:get-arg "-db"))
	 (apath      *toppath*))
    (let loop ()
      (thread-sleep! 5) ;; add control / setting for this
      (if am-server
	  (if (not  *dbstruct-db*)
	      (loop)
	      (db:sync-inmem->disk *dbstruct-db* *toppath* dbfile))))))
  
;; 
;; (let ((dbstruct 
;; 	    (debug:print-info 13 *default-log-port* "after db:setup with dbstruct=" dbstruct)
;; 	    (cond
;; 	     ((dbr:dbstruct-read-only dbstruct)
;; 	      (debug:print-info 13 *default-log-port* "loading read-only watchdog")
;; 	      (common:readonly-watchdog dbstruct))
;; 	     (else
;; 	      (debug:print-info 13 *default-log-port* "loading writable-watchdog.")
;;             (let* ((syncer (or (configf:lookup *configdat* "server" "sync-method") "brute-force-sync")))
;;               (cond
;;                ((equal? syncer "brute-force-sync")
;;                 (server:writable-watchdog-bruteforce dbstruct))
;;                ((equal? syncer "delta-sync")
;;                 (server:writable-watchdog-deltasync dbstruct))
;;                (else
;;                 (debug:print-error 0 *default-log-port* "Unknown server/sync-method specified ("syncer") - valid values are brute-force-sync and delta-sync.")
;;                 (exit 1)))
;;               ;;(debug:print 1 *default-log-port* "INFO: ["(common:human-time)"] Syncer started (method="syncer")")
;;               )))
;; 	    (debug:print-info 13 *default-log-port* "watchdog done."))
;; 	  (debug:print-info 13 *default-log-port* "no need for watchdog on non-homehost"))))

;;======================================================================
;; currently the primary job of the watchdog is to run the sync back to megatest.db from the db in /tmp
;; if we are on the homehost and we are a server (by definition we are on the homehost if we are a server)
;;
(define (common:readonly-watchdog dbstruct)
  #f)

			(delay-loop (+ count 1))))
		  (if (not (bdat-time-to-exit *bdat*)) (loop))))
	    ;; time to exit, close the no-sync db here
	    (db:no-sync-close-db no-sync-db stmt-cache)
	    (if (common:low-noise-print 30)
		(debug:print-info 0 *default-log-port* "Exiting watchdog timer, *time-to-exit* = " (bdat-time-to-exit *bdat*)" pid="(current-process-id) ))))))) ;;" this-wd-num="this-wd-num)))))))

#;(define (server:writable-watchdog-bruteforce dbstruct)
  (thread-sleep! 1) ;; delay for startup
  (let* ((do-a-sync  (server:get-bruteforce-syncer dbstruct))
         (final-sync (server:get-bruteforce-syncer dbstruct fork-to-background: #t persist-until-sync: #t)))
    (when (and (not (args:get-arg "-sync-to-megatest.db")) ;; conditions under which we do not run the sync
	       (args:get-arg "-server"))
      
      (let loop ()
	(do-a-sync)
        (if (not (bdat-time-to-exit *bdat*)) (loop))) ;; keep going unless time to exit

      ;; time to exit, close the no-sync db here
      (final-sync)

      (if (common:low-noise-print 30)
	  (debug:print-info 0 *default-log-port* "Exiting watchdog timer, *time-to-exit* = "(bdat-time-to-exit *bdat*)" pid="(current-process-id)
			    )))))

;; moving this here as it needs access to db and cannot be in common.
;;

#;(define (server:get-bruteforce-syncer dbstruct #!key (fork-to-background #f) (persist-until-sync #f))
  (let* ((sqlite-exe   (or (get-environment-variable "MT_SQLITE3_EXE"))) ;; defined in cfg.sh
         (sync-log     (or (args:get-arg "-sync-log") (conc *toppath* "/logs/sync-" (current-process-id) "-" (get-host-name) ".log")))
	 (tmp-area     (common:get-db-tmp-area))
	 (tmp-db       (conc tmp-area "/megatest.db"))
	 (staging-file (conc *toppath* "/.megatest.db"))
	 (mtdbfile     (conc *toppath* "/megatest.db"))
	 (lockfile     (common:get-sync-lock-filepath))