Megatest

   ;; (if full
       '(dejunk)
       ;; '())
       )
  (if (common:api-changed?)
      (common:set-last-run-version)))

(define (common:snapshot-file filepath #!key (subdir  ".") )
  (if (file-exists? filepath)
      (let* ((age-sec  (lambda (file)
                         (if (file-exists? file)
                             (- (current-seconds) (file-modification-time file))
                             1000000000))) ;; return really old value if file doesn't exist.  we want to clobber it if old or not exist.
             (ok-flag  #t)
             (age-mins (lambda (file) (/ (age-sec   file) 60)))
             (age-hrs  (lambda (file) (/ (age-mins file) 60)))
             (age-days (lambda (file) (/ (age-hrs   file) 24)))
             (age-wks  (lambda (file) (/ (age-days  file) 7)))
             (docmd    (lambda (cmd)
                         (cond
                          (ok-flag
                           (let ((res (system cmd)))
                             (cond
                              ((eq? 0 res)
                               #t)
                              (else
                               (set! ok-flag #f)
                               (debug:print 0 *default-log-port* "ERROR: ["(common:human-time)"] Command failed with exit code "
                                            (if (< res 0)
                                                res
                                                (/ res 8)) " ["cmd"]" )
                               #f))))
                          (else
                           (debug:print 0 *default-log-port* "ERROR: ["(common:human-time)"] Not runnining command due to prior error. ["cmd"]")
                           #f))))
             (copy     (lambda (src dest) (docmd (conc "/bin/cp '"src"' '"dest"'"))))
             (copy+zip (lambda (src dest) (docmd (conc "gzip -c - < '"src"' > '"dest"'"))))
             (fullpath (realpath filepath))
             (basedir  (pathname-directory fullpath))
             (basefile (pathname-strip-directory fullpath))
             ;;(prevfile (conc filepath ".prev.gz"))
             (minsfile (conc basedir "/" subdir "/" basefile ".mins.gz"))
             (hrsfile  (conc basedir "/" subdir "/" basefile ".hrs.gz"))
             (daysfile (conc basedir "/" subdir "/" basefile ".days.gz"))
             (wksfile  (conc basedir "/" subdir "/" basefile ".weeks.gz")))

        ;; create subdir it not exists
        (if (not (directory-exists? (conc basedir "/" subdir)))
            (docmd (conc "/bin/mkdir -p '"(conc basedir "/" subdir)"'")))
        
        ;; copy&zip <file> to <file>.mins if not exists
        (if (not (file-exists? minsfile))
            (copy+zip filepath minsfile))
        ;; copy <file>.mins to <file>.hrs if not exists
        (if (not (file-exists? hrsfile))
            (copy minsfile hrsfile))
        ;; copy <file>.hrs to <file>.days if not exists
        (if (not (file-exists? daysfile))
            (copy hrsfile daysfile))
        ;; copy <file>.days to <file>.weeks if not exists
        (if (not (file-exists? wksfile))
            (copy daysfile wksfile))


        ;; if age(<file>.mins.gz) >= 1h:
        ;;     copy <file>.mins.gz <file>.hrs.gz
        ;;     copy <prev file> <file>.mins.gz
        (when (>= (age-mins minsfile) 1)
          (copy minsfile hrsfile)
          (copy+zip filepath  minsfile))
        
        ;; if age(<file>.hrs.gz) >= 1d:
        ;;     copy <file>.hrs.gz <file>.days.gz
        ;;     copy <file>.mins.gz <file>.hrs.gz
        (when (>= (age-days hrsfile) 1)
          (copy hrsfile daysfile)
          (copy minsfile hrsfile))
        
        ;; if age(<file>.days.gz) >= 1w:
        ;;     copy <file>.days.gz <file>.weeks.gz
        ;;     copy <file>.hrs.gz <file>.days.gz
        (when (>= (age-wks daysfile) 1)
          (copy daysfile wksfile)
          (copy hrsfile daysfile))
        #t)
      #f))
  
        
        
;; Rotate logs, logic: 
;;                 if > 500k and older than 1 week:
;;                     remove previous compressed log and compress this log
;; WARNING: This proc operates assuming that it is in the directory above the
;;          logs directory you wish to log-rotate.
;;
(define (common:rotate-logs)

;;     (and ohh srv)))
    ;; (debug:print-info 0 *default-log-port* "common:run-sync? ohh=" ohh ", srv=" srv)



(define *wdnum* 0)
(define *wdnum*mutex (make-mutex))


(define (common:human-time)
  (time->string (seconds->local-time (current-seconds)) "%Y-%m-%d %H:%M:%S"))


;; 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)
  (thread-sleep! 0.05) ;; delay for startup
  (debug:print-info 13 *default-log-port* "common:readonly-watchdog entered.")
  ;; sync megatest.db to /tmp/.../megatst.db
  (let* ((sync-cool-off-duration   3)
        (golden-mtdb     (dbr:dbstruct-mtdb dbstruct))
        (golden-mtpath   (db:dbdat-get-path golden-mtdb))

	   ;; first look in config, then look in file .homehost, create it if not found
	   (homehost (or (configf:lookup *configdat* "server" "homehost" )
			 (handle-exceptions
			     exn
			     (if (> trynum 0)
				 (let ((delay-time (* (- 5 trynum) 5)))
				   (mutex-unlock! *homehost-mutex*)
				   (debug:print 0 *default-log-port* "ERROR: Failed to read .homehost file, delaying " delay-time " seconds and trying again, message: "  ((condition-property-accessor 'exn 'message) exn))
				   (debug:print 0 *default-log-port* "ERROR: ["(common:human-time)"] Failed to read .homehost file, delaying " delay-time " seconds and trying again, message: "  ((condition-property-accessor 'exn 'message) exn))
				   (thread-sleep! delay-time)
				   (common:get-homehost trynum: (- trynum 1)))
				 (begin
				   (mutex-unlock! *homehost-mutex*)
				   (debug:print 0 *default-log-port* "ERROR: Failed to read .homehost file after trying five times. Giving up and exiting, message: "  ((condition-property-accessor 'exn 'message) exn))
				   (debug:print 0 *default-log-port* "ERROR: ["(common:human-time)"] Failed to read .homehost file after trying five times. Giving up and exiting, message: "  ((condition-property-accessor 'exn 'message) exn))
				   (exit 1)))
			   (let ((hhf (conc *toppath* "/.homehost")))
			     (if (common:file-exists? hhf)
				 (with-input-from-file hhf read-line)
				 (if (file-write-access? *toppath*)
				     (begin
				       (with-output-to-file hhf

	    (if all-good
		(let ((cmddat (make-qitem
			       command:   command
			       host-port: host-port
			       params:    params)))
		  (queue-push cmddat) 		;; put request into the queue
		  (nn-send soc "queued"))         ;; reply with "queued"
		(print "ERROR: BAD request " dat))
		(print "ERROR: ["(common:human-time)"] BAD request " dat))
	    (loop (nn-recv soc)))))
    (nn-close soc)))
  


;;======================================================================
;; D A S H B O A R D   U S E R   V I E W S

;;     along with Megatest.  If not, see <http://www.gnu.org/licenses/>.

;; Always use two or four digit decimal
;; 1.01, 1.02...1.10,1.11,1.1101 ... 1.99,2.00..

(declare (unit megatest-version))

(define megatest-version 1.6523)
(define megatest-version 1.6524)

			"-var"
			"-dumpmode"
			"-run-id"
			"-ping"
			"-refdb2dat"
			"-o"
			"-log"
                        "-sync-log"
			"-since"
			"-fields"
			"-recover-test" ;; run-id,test-id - used internally to recover a test stuck in RUNNING state
			"-sort"
			"-target-db"
			"-source-db"
			"-prefix-target"

       'adj-testids
       'old2new
       ;; 'new2old
       )
      (set! *didsomething* #t)))

(if (args:get-arg "-sync-to-megatest.db")
    (let* ((dbstruct (db:setup #f))
	   (tmpdbpth (cdr (dbr:dbstruct-tmpdb dbstruct)))
	   (lockfile (conc tmpdbpth ".lock"))
	   (locked   (common:simple-file-lock lockfile)) 
	   (res      (if locked
    (let ((res (db:multi-db-sync 
                (db:setup #f)
                'new2old)))
      (print "Synced " res " records to megatest.db")
			 (db:multi-db-sync 
			  dbstruct
			  'new2old)
			 #f)))
      (if res
	  (begin
	    (common:simple-file-release-lock lockfile)
	    (print "Synced " res " records to megatest.db"))
	  (print "Skipping sync, there is a sync in progress."))
      (set! *didsomething* #t)))

(if (args:get-arg "-sync-to")
    (let ((toppath (launch:setup)))
      (tasks:sync-to-postgres *configdat* (args:get-arg "-sync-to"))
      (set! *didsomething* #t)))

     ;; NOTE: This can fail when there is no mention of the host in /etc/hosts. FIXME
     (vector->list (hostinfo-addresses (hostname->hostinfo hostname))))
    (string-intersperse 
     (map number->string
	  (u8vector->list
	   (if res res (hostname->ip hostname)))) ".")))

(define server:sync-lock-token "SERVER_SYNC_LOCK")
(define (server:release-sync-lock)
  (db:no-sync-del! *no-sync-db* server:sync-lock-token))
(define (server:have-sync-lock?)
  (let* ((have-lock-pair (db:no-sync-get-lock *no-sync-db* server:sync-lock-token))
         (have-lock?     (car have-lock-pair))
         (lock-time      (cdr have-lock-pair))
         (lock-age       (- (current-seconds) lock-time)))
    (cond
     (have-lock? #t)
     ((>lock-age
       (* 3 (configf:lookup-number *configdat* "server" "minimum-intersync-delay" default: 180)))
      (server:release-sync-lock)
      (server:have-sync-lock?))
     (else #f))))
;; (define server:sync-lock-token "SERVER_SYNC_LOCK")
;; (define (server:release-sync-lock)
;;   (db:no-sync-del! *no-sync-db* server:sync-lock-token))
;; (define (server:have-sync-lock?)
;;   (let* ((have-lock-pair (db:no-sync-get-lock *no-sync-db* server:sync-lock-token))
;;          (have-lock?     (car have-lock-pair))
;;          (lock-time      (cdr have-lock-pair))
;;          (lock-age       (- (current-seconds) lock-time)))
;;     (cond
;;      (have-lock? #t)
;;      ((>lock-age
;;        (* 3 (configf:lookup-number *configdat* "server" "minimum-intersync-delay" default: 180)))
;;       (server:release-sync-lock)
;;       (server:have-sync-lock?))
;;      (else #f))))

;; moving this here as it needs access to db and cannot be in common.
;;
(define (server:writable-watchdog 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))
  (thread-sleep! 10) ;; delay for startup
  (let* ((legacy-sync  (common:run-sync?))
         (sqlite-exe   (or (get-environment-variable "MT_SQLITE3_EXE"))) ;; defined in cfg.sh
	(debug-mode   (debug:debug-mode 1))
	(last-time    (current-seconds))
	(no-sync-db   (db:open-no-sync-db))
        (sync-duration 0) ;; run time of the sync in milliseconds
        ;;(this-wd-num  (begin (mutex-lock! *wdnum*mutex) (let ((x *wdnum*)) (set! *wdnum* (add1 *wdnum*)) (mutex-unlock! *wdnum*mutex) x)))
        )
    (set! *no-sync-db* no-sync-db) ;; make the no sync db available to api calls
    (debug:print-info 2 *default-log-port* "Periodic sync thread started.")
    (debug:print-info 3 *default-log-port* "watchdog starting. legacy-sync is " legacy-sync" pid="(current-process-id)  );;  " this-wd-num="this-wd-num)
         (sync-log     (or (args:get-arg "-sync-log") (conc *toppath* "/logs/sync-" (current-process-id) "-" (get-host-name) ".log")))
    (if (and legacy-sync (not *time-to-exit*))
	(let* (;;(dbstruct (db:setup))
	       (mtdb       (dbr:dbstruct-mtdb dbstruct))
	       (mtpath     (db:dbdat-get-path mtdb))
	       (tmp-area   (common:get-db-tmp-area))
	       (start-file (conc tmp-area "/.start-sync"))
	       (end-file   (conc tmp-area "/.end-sync")))
	 (tmp-area     (common:get-db-tmp-area))
	 (tmp-db       (conc tmp-area "/megatest.db"))
	 (staging-file (conc *toppath* "/.megatest.db"))
	  (debug:print-info 0 *default-log-port* "Server running, periodic sync started.")
	  (let loop ()
	    ;; sync for filesystem local db writes
	 (mtdbfile     (conc *toppath* "/megatest.db"))
	    ;;
	    (mutex-lock! *db-multi-sync-mutex*)
	 (lockfile     (conc tmp-db ".lock"))
	    (let* ((need-sync        (>= *db-last-access* *db-last-sync*)) ;; no sync since last write
                   (sync-in-progress *db-sync-in-progress*)
                   
                   (min-intersync-delay (configf:lookup-number *configdat* "server" "minimum-intersync-delay" default: 5))
		   (should-sync      (and (not *time-to-exit*)
         (sync-cmd     (conc sqlite-exe" " tmp-db " .dump | "sqlite-exe" " staging-file "&>"sync-log))
	 (min-intersync-delay (configf:lookup-number *configdat* "server" "minimum-intersync-delay" default: 30)))
    (if (and (not (args:get-arg "-sync-to-megatest.db")) ;; conditions under which we do not run the sync
                                          (> (- (current-seconds) *db-last-sync*) min-intersync-delay))) ;; sync every five seconds minimum, deprecated logic, can probably be removed
		   (start-time       (current-seconds))
                   (cpu-load-adj     (alist-ref 'adj-proc-load (common:get-normalized-cpu-load #f)))
		   (mt-mod-time      (file-modification-time mtpath))
		   (last-sync-start  (if (common:file-exists? start-file)
					 (file-modification-time start-file)
					 0))
	     (args:get-arg "-server"))
		   (last-sync-end    (if (common:file-exists? end-file)
					 (file-modification-time end-file)
					 10))
                   (sync-period      (+ 3 (* cpu-load-adj 30))) ;; as adjusted load increases increase the sync period
		   (recently-synced  (and (< (- start-time mt-mod-time) sync-period) ;; not useful if sync didn't modify megatest.db!
					  (< mt-mod-time last-sync-start)))
		   (sync-done        (<= last-sync-start last-sync-end))
                   (sync-stale       (> start-time (+ last-sync-start sync-stale-seconds)))
		   (will-sync-pre        (and (not *time-to-exit*)       ;; do not start a sync if we are in the process of exiting
                                          have-lock?
                                          (or need-sync should-sync)
					  (or sync-done sync-stale)
					  (not sync-in-progress)
					  (not recently-synced)))
                   (will-sync        (if will-sync-pre
                                         ;; delay get lock until we decide to sync
	(let loop ()
                                         (server:have-sync-lock?) 
                                         #f)))
              ;; if another server is syncing, postpone sync
              (if (and will-sync-pre (not will-sync))
                  (set! *db-last-sync* start-time))
              (debug:print-info 13 *default-log-port* "WD writable-watchdog top of loop.  need-sync="need-sync" sync-in-progress=" sync-in-progress
          (debug:print 0 *default-log-port* "INFO: syncer thread sleeping for server.minimum-intersync-delay seconds ["min-intersync-delay"]")
				" should-sync="should-sync" start-time="start-time" mt-mod-time="mt-mod-time" recently-synced="recently-synced" will-sync="will-sync
				" sync-done=" sync-done " sync-period=" sync-period)
              (if (and (> sync-period 5)
	  (thread-sleep! min-intersync-delay)
	  (if (common:simple-file-lock lockfile)
	      (begin
                       (common:low-noise-print 30 "sync-period"))
                  (debug:print-info 0 *default-log-port* "Increased sync period due to long sync times, sync took: " sync-period " seconds."))
	      ;; (if recently-synced (debug:print-info 0 *default-log-port* "Skipping sync due to recently-synced flag=" recently-synced))
	      ;; (debug:print-info 0 *default-log-port* "need-sync: " need-sync " sync-in-progress: " sync-in-progress " should-sync: " should-sync " will-sync: " will-sync)
	      (if will-sync (set! *db-sync-in-progress* #t))
	      (mutex-unlock! *db-multi-sync-mutex*)
	      (if will-sync
                  (let (;; (max-sync-duration  (configf:lookup-number *configdat* "server" "max-sync-duration")) ;; KEEPING THIS AVAILABLE BUT SHOULD NOT USE, I'M PRETTY SURE IT DOES NOT WORK!
                        (sync-start         (current-milliseconds)))
		    (with-output-to-file start-file (lambda ()(print (current-process-id))))
		    
		    ;; put lock here
		    
                    ;; (if (or (not max-sync-duration)
                    ;;        (< sync-duration max-sync-duration)) ;; NOTE: db:sync-to-megatest.db keeps track of time of last sync and syncs incrementally
                        (let ((res        (db:sync-to-megatest.db dbstruct no-sync-db: no-sync-db))) ;; did we sync any data? If so need to set the db touched flag to keep the server alive
                          (set! sync-duration (- (current-milliseconds) sync-start))
                          (if (> res 0) ;; some records were transferred, keep the db alive
                              (begin
                                (mutex-lock! *heartbeat-mutex*)
                                (set! *db-last-access* (current-seconds))
                                (mutex-unlock! *heartbeat-mutex*)
                                (debug:print-info 0 *default-log-port* "sync called, " res " records transferred."))
                              (debug:print-info 2 *default-log-port* "sync called but zero records transferred")))))
;;                         ;; TODO: factor this next routine out into a function
;;                         (with-input-from-pipe ;; this should not block other threads but need to verify this
;;                          (conc "megatest -sync-to-megatest.db -m testsuite:" (common:get-area-name) ":" *toppath*)
;;                          (lambda ()
;;                            (let loop ((inl (read-line))
;;                                       (res #f))
;;                              (if (eof-object? inl)
;;                                  (begin
;;                                    (set! sync-duration (- (current-milliseconds) sync-start))
                
                (if (not (configf:lookup *configdat* "server" "disable-db-snapshot"))
                    (common:snapshot-file mtdbfile subdir: ".db-snapshot"))
		(delete-file* staging-file)
		(let* ((start-time (current-milliseconds))
;;                                    (cond
;;                                     ((not res)
;;                                      (debug:print 0 *default-log-port* "ERROR: sync from /tmp db to megatest.db appears to have failed. Recommended that you stop your runs and run \"megatest -cleanup-db\""))
;;                                     ((> res 0)
                       (res (system sync-cmd)))
;;                                      (mutex-lock! *heartbeat-mutex*)
;;                                      (set! *db-last-access* (current-seconds))
;;                                      (mutex-unlock! *heartbeat-mutex*))))
;;                                  (let ((num-synced (let ((matches (string-match "^Synced (\\d+).*$" inl)))
;;                                                      (if matches
;;                                                          (string->number (cadr matches))
;;                                                          #f))))
;;                                    (loop (read-line)
;;                                          (or num-synced res))))))))))
	      (if will-sync
		  (begin
                  (cond
		    (mutex-lock! *db-multi-sync-mutex*)
		    (set! *db-sync-in-progress* #f)
                   ((eq? 0 res)
		    (set! *db-last-sync* start-time)
		    (with-output-to-file end-file (lambda ()(print (current-process-id))))

		    ;; release lock here
                    (server:release-sync-lock)
		    (delete-file* (conc mtdbfile ".backup"))
		    (system (conc "/bin/mv " staging-file " " mtdbfile))
                    (debug:print 1 *default-log-port* "INFO: ["(common:human-time)"] pid="(current-process-id)" SYNC took "(/ (- (current-milliseconds) start-time) 1000)" sec")
                    #t)
                   (else
                    (system (conc "/bin/cp "sync-log" "sync-log".fail"))
                    (debug:print 0 *default-log-port* "ERROR: ["(common:human-time)"] Sync failed. See log at "sync-log".fail")
		    (mutex-unlock! *db-multi-sync-mutex*)))
	      (if (and debug-mode
                    (if (file-exists? (conc mtdbfile ".backup"))
		       (> (- start-time last-time) 60))
		  (begin
                        (system (conc "/bin/cp "mtdbfile ".backup " mtdbfile)))))
                  (common:simple-file-release-lock lockfile)))
              ;; else
		    (set! last-time start-time)
		    (debug:print-info 4 *default-log-port* "timestamp -> " (seconds->time-string (current-seconds)) ", time since start -> " (seconds->hr-min-sec (- (current-seconds) *time-zero*))))))
	    
	    ;; 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*)
                                                            
		  (if (and (not *time-to-exit*)
			   (< count 6)) ;; was 11, changing to 4. 
		      (begin
			(thread-sleep! 1)
			(delay-loop (+ count 1))))
		  (if (not *time-to-exit*) (loop))))
	    ;; time to exit, close the no-sync db here
	    (db:no-sync-close-db no-sync-db)
	    (if (common:low-noise-print 30)
		(debug:print-info 0 *default-log-port* "Exiting watchdog timer, *time-to-exit* = " *time-to-exit*" pid="(current-process-id) ))))))) ;;" this-wd-num="this-wd-num)))))))
              (debug:print 1 *default-log-port* "INFO: ["(common:human-time)"] pid="(current-process-id)" other SYNC in progress; not syncing.")
              ) ;; end if got lockfile
	  
	  ;; 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*)
		
		(if (and (not *time-to-exit*)
			 (< count 6)) ;; was 11, changing to 4. 
		    (begin
		      (thread-sleep! 1)
		      (delay-loop (+ count 1))))
		(if (not *time-to-exit*) (loop))))
	  ;; time to exit, close the no-sync db here
	  ;; (db:no-sync-close-db no-sync-db)
	  (if (common:low-noise-print 30)
	      (debug:print-info 0 *default-log-port* "Exiting watchdog timer, *time-to-exit* = " *time-to-exit*" pid="(current-process-id)
				))))))

;;   (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))
;; 	(no-sync-db   (db:open-no-sync-db))
;;         (sync-duration 0) ;; run time of the sync in milliseconds
;;         ;;(this-wd-num  (begin (mutex-lock! *wdnum*mutex) (let ((x *wdnum*)) (set! *wdnum* (add1 *wdnum*)) (mutex-unlock! *wdnum*mutex) x)))
;;         )
;;     (set! *no-sync-db* no-sync-db) ;; make the no sync db available to api calls
;;     (debug:print-info 2 *default-log-port* "Periodic sync thread started.")
;;     (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*))
;; 	(let* (;;(dbstruct (db:setup))
;; 	       (mtdb       (dbr:dbstruct-mtdb dbstruct))
;; 	       (mtpath     (db:dbdat-get-path mtdb))
;; 	       (tmp-area   (common:get-db-tmp-area))
;; 	       (lockfile   (conc tmp-area "/megatest.db.lock"))
;; 	       (start-file (conc tmp-area "/.start-sync"))
;; 	       (end-file   (conc tmp-area "/.end-sync")))
;; 	  (debug:print-info 0 *default-log-port* "Server running, periodic sync started.")
;; 	  (let loop ()
;; 	    ;; sync for filesystem local db writes
;; 	    ;;
;; 	    
;; 	    (mutex-lock! *db-multi-sync-mutex*)
;; 		  (let* ((need-sync        (>= *db-last-access* *db-last-sync*)) ;; no sync since last write
;; 			 (sync-in-progress *db-sync-in-progress*)
;; 			 
;; 			 (min-intersync-delay (configf:lookup-number *configdat* "server" "minimum-intersync-delay" default: 5))
;; 			 (should-sync      (and (not *time-to-exit*)
;; 						(> (- (current-seconds) *db-last-sync*) min-intersync-delay))) ;; sync every five seconds minimum, deprecated logic, can probably be removed
;; 			 (start-time       (current-seconds))
;; 			 (cpu-load-adj     (alist-ref 'adj-proc-load (common:get-normalized-cpu-load #f)))
;; 			 (mt-mod-time      (file-modification-time mtpath))
;; 			 (last-sync-start  (if (common:file-exists? start-file)
;; 					       (file-modification-time start-file)
;; 					       0))
;; 			 (last-sync-end    (if (common:file-exists? end-file)
;; 					       (file-modification-time end-file)
;; 					       10))
;; 			 (sync-period      (+ 3 (* cpu-load-adj 30))) ;; as adjusted load increases increase the sync period
;; 			 (recently-synced  (and (< (- start-time mt-mod-time) sync-period) ;; not useful if sync didn't modify megatest.db!
;; 						(< mt-mod-time last-sync-start)))
;; 			 (sync-done        (<= last-sync-start last-sync-end))
;; 			 (sync-stale       (> start-time (+ last-sync-start sync-stale-seconds)))
;; 			 (will-sync-pre        (and (not *time-to-exit*)       ;; do not start a sync if we are in the process of exiting
;; 						    have-lock?
;; 						    (or need-sync should-sync)
;; 						    (or sync-done sync-stale)
;; 						    (not sync-in-progress)
;; 						    (not recently-synced)))
;; 			 (will-sync        (if will-sync-pre
;; 					       ;; delay get lock until we decide to sync
;; 					       #t ;; (server:have-sync-lock?) 
;; 					       #f)))
;; 		    ;; if another server is syncing, postpone sync
;; 		    (if (and will-sync-pre (not will-sync))
;; 			(set! *db-last-sync* start-time))
;; 		    (debug:print-info 13 *default-log-port* "WD writable-watchdog top of loop.  need-sync="need-sync" sync-in-progress=" sync-in-progress
;; 				      " should-sync="should-sync" start-time="start-time" mt-mod-time="mt-mod-time" recently-synced="recently-synced" will-sync="will-sync
;; 				      " sync-done=" sync-done " sync-period=" sync-period)
;; 		    (if (and (> sync-period 5)
;; 			     (common:low-noise-print 30 "sync-period"))
;; 			(debug:print-info 0 *default-log-port* "Increased sync period due to long sync times, sync took: " sync-period " seconds."))
;; 		    ;; (if recently-synced (debug:print-info 0 *default-log-port* "Skipping sync due to recently-synced flag=" recently-synced))
;; 		    ;; (debug:print-info 0 *default-log-port* "need-sync: " need-sync " sync-in-progress: " sync-in-progress " should-sync: " should-sync " will-sync: " will-sync)
;; 		    (if will-sync (set! *db-sync-in-progress* #t))
;; 		    (mutex-unlock! *db-multi-sync-mutex*)
;; 		    (if will-sync
;; 			(let (;; (max-sync-duration  (configf:lookup-number *configdat* "server" "max-sync-duration")) ;; KEEPING THIS AVAILABLE BUT SHOULD NOT USE, I'M PRETTY SURE IT DOES NOT WORK!
;; 			      (sync-start         (current-milliseconds)))
;; 			  (with-output-to-file start-file (lambda ()(print (current-process-id))))
;; 			  
;; 			  ;; put lock here
;; 			  
;; 			  ;; (if (or (not max-sync-duration)
;; 			  ;;        (< sync-duration max-sync-duration)) ;; NOTE: db:sync-to-megatest.db keeps track of time of last sync and syncs incrementally
;; 			  (let ((res        (db:sync-to-megatest.db dbstruct no-sync-db: no-sync-db))) ;; did we sync any data? If so need to set the db touched flag to keep the server alive
;; 			    (set! sync-duration (- (current-milliseconds) sync-start))
;; 			    (if (> res 0) ;; some records were transferred, keep the db alive
;; 				(begin
;; 				  (mutex-lock! *heartbeat-mutex*)
;; 				  (set! *db-last-access* (current-seconds))
;; 				  (mutex-unlock! *heartbeat-mutex*)
;; 				  (debug:print-info 0 *default-log-port* "sync called, " res " records transferred."))
;; 				(debug:print-info 2 *default-log-port* "sync called but zero records transferred")))))
;; 		    ;;                         ;; TODO: factor this next routine out into a function
;; 		    ;;                         (with-input-from-pipe ;; this should not block other threads but need to verify this
;; 		    ;;                          (conc "megatest -sync-to-megatest.db -m testsuite:" (common:get-area-name) ":" *toppath*)
;; 		    ;;                          (lambda ()
;; 		    ;;                            (let loop ((inl (read-line))
;; 		    ;;                                       (res #f))
;; 		    ;;                              (if (eof-object? inl)
;; 		    ;;                                  (begin
;; 		    ;;                                    (set! sync-duration (- (current-milliseconds) sync-start))
;; 		    ;;                                    (cond
;; 		    ;;                                     ((not res)
;; 		    ;;                                      (debug:print 0 *default-log-port* "ERROR: sync from /tmp db to megatest.db appears to have failed. Recommended that you stop your runs and run \"megatest -cleanup-db\""))
;; 		    ;;                                     ((> res 0)
;; 		    ;;                                      (mutex-lock! *heartbeat-mutex*)
;; 		    ;;                                      (set! *db-last-access* (current-seconds))
;; 		    ;;                                      (mutex-unlock! *heartbeat-mutex*))))
;; 		    ;;                                  (let ((num-synced (let ((matches (string-match "^Synced (\\d+).*$" inl)))
;; 		    ;;                                                      (if matches
;; 		    ;;                                                          (string->number (cadr matches))
;; 		    ;;                                                          #f))))
;; 		    ;;                                    (loop (read-line)
;; 		    ;;                                          (or num-synced res))))))))))
;; 		    (if will-sync
;; 			(begin
;; 			  (mutex-lock! *db-multi-sync-mutex*)
;; 			  (set! *db-sync-in-progress* #f)
;; 			  (set! *db-last-sync* start-time)
;; 			  (with-output-to-file end-file (lambda ()(print (current-process-id))))
;; 
;; 			  ;; release lock here
;; 			  ;; (server:release-sync-lock)
;; 			  (mutex-unlock! *db-multi-sync-mutex*)))
;; 		    (if (and debug-mode
;; 			     (> (- start-time last-time) 60))
;; 			(begin
;; 			  (set! last-time start-time)
;; 			  (debug:print-info 4 *default-log-port* "timestamp -> " (seconds->time-string (current-seconds)) ", time since start -> " (seconds->hr-min-sec (- (current-seconds) *time-zero*))))))
;; 		  
;; 		  ;; 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*)
;; 			
;; 			(if (and (not *time-to-exit*)
;; 				 (< count 6)) ;; was 11, changing to 4. 
;; 			    (begin
;; 			      (thread-sleep! 1)
;; 			      (delay-loop (+ count 1))))
;; 			(if (not *time-to-exit*) (loop))))
;; 		  ;; time to exit, close the no-sync db here
;; 		  (db:no-sync-close-db no-sync-db)
;; 		  (if (common:low-noise-print 30)
;; 		      (debug:print-info 0 *default-log-port* "Exiting watchdog timer, *time-to-exit* = " *time-to-exit*" pid="(current-process-id) ))))))) ;;" this-wd-num="this-wd-num)))))))

#     You should have received a copy of the GNU General Public License
#     along with Megatest.  If not, see <http://www.gnu.org/licenses/>.

prefix=$1
cmd=$2
target=$3
cfgfile="$prefix/bin/.$(lsb_release -sr)/cfg.sh"

# we wish to create a var in cfg.sh for finding sqlite3 executable
chicken_bin_dir=$(dirname $(which csi))
if [[ -e $chicken_bin_dir/sqlite3 ]];then
    sqlite3_exe=$chicken_bin_dir/sqlite3
else
    sqlite3_exe=$(which sqlite3)
fi

if [ "$LD_LIBRARY_PATH" != "" ];then
  echo "INFO: Using LD_LIBRARY_PATH=$LD_LIBRARY_PATH" >&2
( cat << __EOF
if [ -z \$MT_ORIG_ENV ]; then
    export MT_ORIG_ENV=\$( $prefix/bin/serialize-env )
fi

if [ "\$LD_LIBRARY_PATH" != "" ];then
  export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:\$LD_LIBRARY_PATH
else
  export LD_LIBRARY_PATH=$LD_LIBRARY_PATH
fi

export MT_SQLITE3_EXE=$sqlite3_exe
__EOF
) > $cfgfile
  echo 
else
  echo "INFO: LD_LIBRARY_PATH not set" >&2
fi