Megatest

					(begin
					  (sqlite3:interrupt! db)
					  (sqlite3:finalize! db #t)
					  (vector-set! *task-db* 0 #f)))))) "Cleanup db exit thread"))
	  (th2 (make-thread (lambda ()
			      (debug:print 4 "Attempting clean exit. Please be patient and wait a few seconds...")
			      (if no-hurry
				  (thread-sleep! 5) ;; give the clean up few seconds to do it's stuff
				  (thread-sleep! 2))
			      (debug:print 4 " ... done")
			      )
			    "clean exit")))
      (thread-start! th1)
      (thread-start! th2)
      (thread-join! th1))))

(define (std-signal-handler signum)
  ;; (signal-mask! signum)
  (set! *time-to-exit* #t)
  (debug:print 0 "ERROR: Received signal " signum " exiting promptly")
  ;; (std-exit-procedure) ;; shouldn't need this since we are exiting and it will be called anyway
  (exit))

  (let* ((parent-dir   (pathname-directory fname))
	 (dir-writable (file-write-access? parent-dir))
	 (file-exists  (file-exists? fname))
	 (file-write   (if file-exists
			   (file-write-access? fname)
			   dir-writable )))
    (if file-write ;; dir-writable
	(let (;; (lock    (obtain-dot-lock fname 1 5 10))
	      (db      (sqlite3:open-database fname)))
	  (sqlite3:set-busy-handler! db (make-busy-timeout 136000))
	  (db:set-sync db) ;; (sqlite3:execute db "PRAGMA synchronous = 0;")
	  (if (not file-exists)(initproc db))
	  ;; (release-dot-lock fname)
	  db)
	(begin
	  (debug:print 0 "ERROR: no such db in non-writable dir " fname)
	  (sqlite3:open-database fname))))) ;; )

;; This routine creates the db. It is only called if the db is not already opened
;; 

		   (lambda (a . x)
		     (set! res (cons (apply vector a x) res)))
		   db
		   qrystr
		   )))
    (debug:print-info 11 "db:get-runs END qrystr: " qrystr " keypatts: " keypatts " offset: " offset " limit: " count)
    (vector header res)))

(define (db:get-changed-run-ids since-time)
  (let* ((dbdir      (db:dbfile-path #f)) ;; (configf:lookup *configdat* "setup" "dbdir"))
	 (alldbs     (glob (conc dbdir "/[0-9]*.db")))
	 (changed    (filter (lambda (dbfile)
			       (> (file-modification-time dbfile) since-time))
			     alldbs)))
    (delete-duplicates
     (map (lambda (dbfile)
	    (let* ((res (string-match ".*\\/(\\d)*\\.db" dbfile)))
	      (if res
		  (string->number (cadr res))
		  (begin
		    (debug:print 2 "WARNING: Failed to process " dbfile " for run-id")
		    0))))
	  changed))))

;; db:get-runs-by-patt
;; get runs by list of criteria
;; register a test run with the db
;;
;; Use: (db:get-value-by-header (db:get-header runinfo)(db:get-rows runinfo))
;;  to extract info from the structure returned

	 (runs-info    '()))
    ;; First get all the runname/run-ids
    (db:delay-if-busy dbdat)
    (sqlite3:for-each-row
     (lambda (run-id runname)
       (set! runs-info (cons (list run-id runname) runs-info)))
     db
     "SELECT id,runname FROM runs WHERE state != 'deleted' ORDER BY event_time DESC;") ;; If you change this to the more logical ASC please adjust calls to db:get-run-stats
    ;; for each run get stats data
    (for-each
     (lambda (run-info)
       ;; get the net state/status counts for this run
       (let* ((run-id   (car  run-info))
	      (run-name (cadr run-info)))
	 (db:with-db

  -list-db-targets        : list the target combinations used in the db
  -show-config            : dump the internal representation of the megatest.config file
  -show-runconfig         : dump the internal representation of the runconfigs.config file
  -dumpmode json          : dump in json format instead of sexpr
  -show-cmdinfo           : dump the command info for a test (run in test environment)
  -section sectionName
  -var varName            : for config and runconfig lookup value for sectionName varName
  -since N   : get list of runs changed since time N (Unix seconds)

Misc 
  -start-dir path         : switch to this directory before running megatest
  -rebuild-db             : bring the database schema up to date
  -cleanup-db             : remove any orphan records, vacuum the db
  -import-megatest.db     : migrate a database from v1.55 series to v1.60 series
  -sync-to-megatest.db    : migrate data back to megatest.db

			"-dumpmode"
			"-run-id"
			"-ping"
			"-refdb2dat"
			"-o"
			"-log"
			"-archive"
			"-since"
			) 
		 (list  "-h" "-help" "--help"
			"-version"
		        "-force"
		        "-xterm"
		        "-showkeys"
		        "-show-keys"

	       (testpatt (if (args:get-arg "-testpatt") 
			     (args:get-arg "-testpatt") 
			     "%"))
	       (keys     (db:get-keys dbstruct))
	       ;; (runsdat  (db:get-runs dbstruct runpatt #f #f '()))
	       (runsdat  (db:get-runs-by-patt dbstruct keys (or runpatt "%") (common:args-get-target)
					 #f #f))
	       (runstmp  (db:get-rows runsdat))
	       (header   (db:get-header runsdat))
	       (runs     (if (and (not (null? runstmp))
				  (args:get-arg "-since"))
			     (let ((changed-ids (db:get-changed-run-ids (string->number (args:get-arg "-since")))))
			       (let loop ((hed (car runstmp))
					  (tal (cdr runstmp))
					  (res '()))
				 (let ((new-res (if (member (db:get-value-by-header hed header "id") changed-ids)
						    (cons hed res)
						    res)))
				   (if (null? tal)
				       (reverse new-res)
				       (loop (car tal)(cdr tal) new-res)))))
			     runstmp))
	       (db-targets (args:get-arg "-list-db-targets"))
	       (seen     (make-hash-table))
	       (dmode    (let ((d (args:get-arg "-dumpmode")))
			   (if d (string->symbol d) #f)))
	       (data     (make-hash-table)))
	  ;; Each run
	  (for-each 

			(print "Run: " targetstr "/" runname 
			       " status: " (db:get-value-by-header run header "state")
			       " run-id: " run-id ", number tests: " (length tests))))
		     (for-each 
		      (lambda (test)
		      	(handle-exceptions
			 exn
			 (debug:print 4 "ERROR: Bad data in test record? " test)
			 (let ((test-id    (db:test-get-id test))
			       (fullname   (conc (db:test-get-testname test)
						 (if (equal? (db:test-get-item-path test) "")
						     "" 
						     (conc "(" (db:test-get-item-path test) ")"))))
			       (tstate     (db:test-get-state test))
			       (tstatus    (db:test-get-status test))

						 (tdb:step-get-event_time step)))
				       steps)))))))))
		      tests)))))
	   runs)
	  (if (eq? dmode 'json)(json-write data))
	  (set! *didsomething* #t))))

;; Don't think I need this. Incorporated into -list-runs instead
;;
;; (if (and (args:get-arg "-since")
;; 	 (launch:setup-for-run))
;;     (let* ((since-time (string->number (args:get-arg "-since")))
;; 	   (run-ids    (db:get-changed-run-ids since-time)))
;;       ;; (rmt:get-tests-for-runs-mindata run-ids testpatt states status not-in)
;;       (print (sort run-ids <))
;;       (set! *didsomething* #t)))
      
      
;;======================================================================
;; full run
;;======================================================================

;; get lock in db for full run for this directory
;; for all tests with deps
;;   walk tree of tests to find head tasks