Megatest

		    ((string-match (regexp "no"  #t) syncval) 0)
		    ((string-match (regexp "(off|normal|full)" #t) syncval) syncval)
		    (else 
		     (debug:print 0 "ERROR: synchronous must be 0,1,2,OFF,NORMAL or FULL, you provided: " syncval)
		     #f))))
    (if val
	(begin
	  (debug:print-info 4 "Setting pragma synchronous to " val)
	  (debug:print-info 11 "db:set-sync, setting pragma synchronous to " val)
	  (sqlite3:execute db (conc "PRAGMA synchronous = '" val "';"))))))

(define (open-db) ;;  (conc *toppath* "/megatest.db") (car *configinfo*)))
  (let* ((dbpath    (conc *toppath* "/megatest.db")) ;; fname)
	 (dbexists  (file-exists? dbpath))
	 (db        (sqlite3:open-database dbpath)) ;; (never-give-up-open-db dbpath))
	 (handler   (make-busy-timeout (if (args:get-arg "-override-timeout")
					   (string->number (args:get-arg "-override-timeout"))
					   136000)))) ;; 136000))) ;; 136000 = 2.2 minutes
    (debug:print-info 4 "dbpath=" dbpath)
    (debug:print-info 11 "open-db, dbpath=" dbpath)
    (sqlite3:set-busy-handler! db handler)
    (if (not dbexists)
	(db:initialize db))
    (db:set-sync db)
    db))

;; keeping it around for debugging purposes only
(define (open-run-close-no-exception-handling  proc idb . params)
  (debug:print-info 11 "open-run-close-no-exception-handling START, idb=" idb ", params=" params)
  (let* ((db   (if idb idb (open-db)))
	 (res #f))
    (set! res (apply proc db params))
    (if (not idb)(sqlite3:finalize! db))
    (debug:print-info 11 "open-run-close-no-exception-handling END" )
    res))

(define (open-run-close-exception-handling proc idb . params)
  (debug:print-info 11 "open-run-close-exception-handling START, idb=" idb ", params=" params)
  (let ((runner (lambda ()
		  (let* ((db   (if idb idb (open-db)))
			 (res #f))
		    (set! res (apply proc db params))
		    (if (not idb)(sqlite3:finalize! db))
		    (debug:print-info 11 "open-run-close-no-exception-handling END" )
		    res))))
    (handle-exceptions
     exn
     (begin
       (debug:print 0 "EXCEPTION: database probably overloaded?")
       (debug:print 0 "  " ((condition-property-accessor 'exn 'message) exn))
       (print-call-chain)
       (thread-sleep! (random 120))
       (debug:print 0 "trying db call one more time....")
       (debug:print-info 0 "trying db call one more time....")
       (runner))
     (runner))))

(define open-run-close open-run-close-exception-handling)

(define *global-delta* 0)
(define *last-global-delta-printed* 0)

(define (open-run-close-measure  proc idb . params)
  (debug:print-info 11 "open-run-close-measure START, idb=" idb ", params=" params)
  (let* ((start-ms (current-milliseconds))
	 (db       (if idb idb (open-db)))
         (throttle (string->number (config-lookup *configdat* "setup" "throttle"))))

    (db:set-sync db)
    (set! res      (apply proc db params))
    (if (not idb)(sqlite3:finalize! db))
    ;; scale by 10, average with current value.
    (set! *global-delta* (/ (+ *global-delta* (* (- (current-milliseconds) start-ms)
						 (if throttle throttle 0.01)))
			    2))
    (if (> (abs (- *last-global-delta-printed* *global-delta*)) 0.08) ;; don't print all the time, only if it changes a bit
	(begin
	  (debug:print-info 1 "launch throttle factor=" *global-delta*)
	  (set! *last-global-delta-printed* *global-delta*)))
    (debug:print-info 11 "open-run-close-measure END" )
    res))

(define (db:initialize db)
  (debug:print-info 11 "db:initialize START")
  (let* ((configdat (car *configinfo*))  ;; tut tut, global warning...
	 (keys     (config-get-fields configdat))
	 (havekeys (> (length keys) 0))
	 (keystr   (keys->keystr keys))
	 (fieldstr (keys->key/field keys)))
    (for-each (lambda (key)
		(let ((keyn (vector-ref key 0)))

                                units TEXT,
                                comment TEXT DEFAULT '',
                                status TEXT DEFAULT 'n/a',
                                type TEXT DEFAULT '',
                              CONSTRAINT test_data_constraint UNIQUE (test_id,category,variable));")
    ;; Must do this *after* running patch db !! No more. 
    (db:set-var db "MEGATEST_VERSION" megatest-version)
    (debug:print-info 11 "db:initialize END")
    ))

;;======================================================================
;; T E S T   S P E C I F I C   D B 
;;======================================================================

;; Create the sqlite db for the individual test(s)
(define (open-test-db testpath) 
  (debug:print-info 11 "open-test-db " testpath)
  (if (and (directory? testpath)
	   (file-read-access? testpath))
      (let* ((dbpath    (conc testpath "/testdat.db"))
	     (dbexists  (file-exists? dbpath))
	     (db        (sqlite3:open-database dbpath)) ;; (never-give-up-open-db dbpath))
	     (handler   (make-busy-timeout (if (args:get-arg "-override-timeout")
					       (string->number (args:get-arg "-override-timeout"))
					       36000))))
					       136000))))
	(debug:print-info 4 "test dbpath=" dbpath)
	(sqlite3:set-busy-handler! db handler)
	(if (not dbexists)
	    (begin
	      (sqlite3:execute db "PRAGMA synchronous = FULL;")
	      (debug:print 0 "Initialized test database " dbpath)
	      (db:testdb-initialize db)))
	;; (sqlite3:execute db "PRAGMA synchronous = 0;")
	(debug:print-info 11 "open-test-db END (sucessful)" testpath)
	db)
      (begin
	(debug:print-info 11 "open-test-db END (unsucessful)" testpath)
      #f))
	#f)))

;; find and open the testdat.db file for an existing test
(define (db:open-test-db-by-test-id db test-id)
  (let* ((test-path (db:test-get-rundir-from-test-id db test-id)))
    (open-test-db test-path)))

(define (db:testdb-initialize db)
  (debug:print 11 "db:testdb-initialize START")
  (for-each
   (lambda (sqlcmd)
     (sqlite3:execute db sqlcmd))
   (list "CREATE TABLE IF NOT EXISTS test_rundat (
              id INTEGER PRIMARY KEY,
              update_time TIMESTAMP,
              cpuload INTEGER DEFAULT -1,

	 ;; e.g. KILLREQ
	 ;;      the ackstate is set to 1 once the command has been completed
	 "CREATE TABLE IF NOT EXISTS test_meta (
              id INTEGER PRIMARY KEY,
              var TEXT,
              val TEXT,
              ackstate INTEGER DEFAULT 0,
              CONSTRAINT metadat_constraint UNIQUE (var));")))
              CONSTRAINT metadat_constraint UNIQUE (var));"))
  (debug:print 11 "db:testdb-initialize END"))

;;======================================================================
;; L O G G I N G    D B 
;;======================================================================

(define (open-logging-db) ;;  (conc *toppath* "/megatest.db") (car *configinfo*)))
  (let* ((dbpath    (conc (if *toppath* (conc *toppath* "/") "") "logging.db")) ;; fname)

;;======================================================================
;; meta get and set vars
;;======================================================================

;; returns number if string->number is successful, string otherwise
;; also updates *global-delta*
(define (db:get-var db var)
  (debug:print-info 11 "db:get-var START " var)
  (let* ((start-ms (current-milliseconds))
         (throttle (let ((t  (config-lookup *configdat* "setup" "throttle")))
		     (if t (string->number t) t)))
	 (res      #f))
    (sqlite3:for-each-row
     (lambda (val)
       (set! res val))
     db "SELECT val FROM metadat WHERE var=?;" var)
    ;; convert to number if can
    (if (string? res)
	(let ((valnum (string->number res)))
	  (if valnum (set! res valnum))))
    ;; scale by 10, average with current value.
    (set! *global-delta* (/ (+ *global-delta* (* (- (current-milliseconds) start-ms)
						 (if throttle throttle 0.01)))
			    2))
    (if (> (abs (- *last-global-delta-printed* *global-delta*)) 0.08) ;; don't print all the time, only if it changes a bit
	(begin
	  (debug:print-info 4 "launch throttle factor=" *global-delta*)
	  (set! *last-global-delta-printed* *global-delta*)))
    (debug:print-info 11 "db:get-var END " var)
    res))

(define (db:set-var db var val)
  (debug:print-info 11 "db:set-var START " var " " val)
  (sqlite3:execute db "INSERT OR REPLACE INTO metadat (var,val) VALUES (?,?);" var val))
  (sqlite3:execute db "INSERT OR REPLACE INTO metadat (var,val) VALUES (?,?);" var val)
  (debug:print-info 11 "db:set-var END " var " " val)
)

;; use a global for some primitive caching, it is just silly to re-read the db 
;; over and over again for the keys since they never change

(define (db:get-keys db)
  (if *db-keys* *db-keys* 
      (let ((res '()))
	(debug:print-info 11 "db:get-keys START (cache miss)")
	(sqlite3:for-each-row 
	 (lambda (key keytype)
	   (set! res (cons (vector key keytype) res)))
	 db
	 "SELECT fieldname,fieldtype FROM keys ORDER BY id DESC;")
	(set! *db-keys* res)
	(debug:print-info 11 "db:get-keys END (cache miss)")
	res)))

(define (db:get-value-by-header row header field)
  (debug:print-info 4 "db:get-value-by-header row: " row " header: " header " field: " field)
  (if (null? header) #f
      (let loop ((hed (car header))
		 (tal (cdr header))

		           " ORDER BY event_time DESC "
		           (if (number? count)
		               (conc " LIMIT " count)
		               "")
		           (if (number? offset)
		               (conc " OFFSET " offset)
		               ""))))
    (debug:print-info 8 "db:get-runs qrystr: " qrystr "\nkeypatts: " keypatts "\n  offset: " offset " limit: " count)
    (debug:print-info 11 "db:get-runs START qrystr: " qrystr " keypatts: " keypatts " offset: " offset " limit: " count)
    (sqlite3:for-each-row
     (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)))

;; just get count of runs
(define (db:get-num-runs db runpatt)
  (let ((numruns 0))
    (debug:print-info 11 "db:get-num-runs START " runpatt)
    (sqlite3:for-each-row 
     (lambda (count)
       (set! numruns count))
     db
     "SELECT COUNT(id) FROM runs WHERE runname LIKE ?;" runpatt)
    (debug:print-info 11 "db:get-num-runs END " runpatt)
    numruns))

;; use (get-value-by-header (db:get-header runinfo)(db:get-row runinfo))
(define (db:get-run-info db run-id)
  (if (hash-table-ref/default *run-info-cache* run-id #f)
      (hash-table-ref *run-info-cache* run-id)
      (let* ((res      #f)
	     (keys      (db:get-keys db))
	     (remfields (list "id" "runname" "state" "status" "owner" "event_time"))
	     (header    (append (map key:get-fieldname keys)
				remfields))
	     (keystr    (conc (keys->keystr keys) ","
			      (string-intersperse remfields ","))))
	;; (debug:print 0 "db:get-run-info run-id: " run-id " header: " header " keystr: " keystr)
	(debug:print-info 11 "db:get-run-info run-id: " run-id " header: " header " keystr: " keystr)
	(sqlite3:for-each-row
	 (lambda (a . x)
	   (set! res (apply vector a x)))
	 db
	 (conc "SELECT " keystr " FROM runs WHERE id=?;")
	 run-id)
	(debug:print-info 11 "db:get-run-info run-id: " run-id " header: " header " keystr: " keystr)
	(let ((finalres (vector header res)))
	  (hash-table-set! *run-info-cache* run-id finalres)
	  finalres))))

(define (db:set-comment-for-run db run-id comment)
  (debug:print-info 11 "db:set-comment-for-run START run-id: " run-id " comment: " comment)
  (sqlite3:execute db "UPDATE runs SET comment=? WHERE id=?;" comment run-id))
  (sqlite3:execute db "UPDATE runs SET comment=? WHERE id=?;" comment run-id)
  (debug:print-info 11 "db:set-comment-for-run END run-id: " run-id " comment: " comment))

;; does not (obviously!) removed dependent data. But why not!!?
(define (db:delete-run db run-id)
  (sqlite3:execute db "DELETE FROM runs WHERE id=?;" run-id))

(define (db:update-run-event_time db run-id)
  (debug:print-info 11 "db:update-run-event_time START run-id: " run-id)
  (sqlite3:execute db "UPDATE runs SET event_time=strftime('%s','now') WHERE id=?;" run-id)) 
  (sqlite3:execute db "UPDATE runs SET event_time=strftime('%s','now') WHERE id=?;" run-id)
  (debug:print-info 11 "db:update-run-event_time END run-id: " run-id)) 

(define (db:lock/unlock-run db run-id lock unlock user)
  (let ((newlockval (if lock "locked"
			(if unlock
			    "unlocked"
			    "locked")))) ;; semi-failsafe
    (sqlite3:execute db "UPDATE runs SET state=? WHERE id=?;" newlockval run-id)
    (sqlite3:execute db "INSERT INTO access_log (user,accessed,args) VALUES(?,strftime('%s','now'),?);"
		     user (conc newlockval " " run-id))
    (debug:print-info 1 "" newlockval " run number " run-id)))

;;======================================================================
;; K E Y S
;;======================================================================

;; get key val pairs for a given run-id
;; ( (FIELDNAME1 keyval1) (FIELDNAME2 keyval2) ... )
(define (db:get-key-val-pairs db run-id)
  (let* ((keys (get-keys db))
	 (res  '()))
    (debug:print 6 "keys: " keys " run-id: " run-id)
    (debug:print-info 11 "db:get-key-val-pairs START keys: " keys " run-id: " run-id)
    (for-each 
     (lambda (key)
       (let ((qry (conc "SELECT " (key:get-fieldname key) " FROM runs WHERE id=?;")))
	 ;; (debug:print 0 "qry: " qry)
	 (sqlite3:for-each-row 
	  (lambda (key-val)
	    (set! res (cons (list (key:get-fieldname key) key-val) res)))
	  db qry run-id)))
     keys)
    (debug:print-info 11 "db:get-key-val-pairs END keys: " keys " run-id: " run-id)
    (reverse res)))

;; get key vals for a given run-id
(define (db:get-key-vals db run-id)
  (let ((mykeyvals (hash-table-ref/default *keyvals* run-id #f)))
    (if mykeyvals 
	mykeyvals
	(let* ((keys (get-keys db))
	       (res  '()))
	  (debug:print 6 "keys: " keys " run-id: " run-id)
	  (debug:print-info 11 "db:get-key-vals START keys: " keys " run-id: " run-id)
	  (for-each 
	   (lambda (key)
	     (let ((qry (conc "SELECT " (key:get-fieldname key) " FROM runs WHERE id=?;")))
	       ;; (debug:print 0 "qry: " qry)
	       (sqlite3:for-each-row 
		(lambda (key-val)
		  (set! res (cons key-val res)))
		db qry run-id)))
	   keys)
	  (debug:print-info 11 "db:get-key-vals END keys: " keys " run-id: " run-id)
	  (let ((final-res (reverse res)))
	    (hash-table-set! *keyvals* run-id final-res)
	    final-res)))))

;; The target is keyval1/keyval2..., cached in *target* as it is used often
(define (db:get-target db run-id)
  (let ((mytarg (hash-table-ref/default *target* run-id #f)))
    (if mytarg
	mytarg
	(let* ((keyvals (db:get-key-vals db run-id))
	       (thekey  (string-intersperse (map (lambda (x)(if x x "-na-")) keyvals) "/")))
	  (hash-table-set! *target* run-id thekey)
	  thekey))))

;;======================================================================
;;  T E S T S
;;======================================================================

(define (db:tests-register-test db run-id test-name item-path)
  (debug:print-info 4 "db:tests-register-test db=" db ", run-id=" run-id ", test-name=" test-name ", item-path=\"" item-path "\"")
  (debug:print-info 11 "db:tests-register-test START db=" db ", run-id=" run-id ", test-name=" test-name ", item-path=\"" item-path "\"")
  (let ((item-paths (if (equal? item-path "")
			(list item-path)
			(list item-path ""))))
    (for-each 
     (lambda (pth)
       (sqlite3:execute db "INSERT OR IGNORE INTO tests (run_id,testname,event_time,item_path,state,status) VALUES (?,?,strftime('%s','now'),?,'NOT_STARTED','n/a');" 
			run-id 
			test-name
			pth))
     item-paths)
  (debug:print-info 11 "db:tests-register-test END db=" db ", run-id=" run-id ", test-name=" test-name ", item-path=\"" item-path "\"")
    #f))


;; states and statuses are lists, turn them into ("PASS","FAIL"...) and use NOT IN
;; i.e. these lists define what to NOT show.
;; states and statuses are required to be lists, empty is ok
;; not-in #t = above behaviour, #f = must match
(define (db:get-tests-for-run db run-id testpatt states statuses 
			      #!key (not-in #t)
			      (sort-by #f) ;; 'rundir 'event_time
			      )
  (debug:print-info 11 "db:get-tests-for-run START run-id=" run-id ", testpatt=" testpatt ", states=" states ", statuses=" statuses ", not-in=" not-in ", sort-by=" sort-by)
  (let* ((res '())
	 ;; if states or statuses are null then assume match all when not-in is false
	 (states-qry      (if (null? states) 
			      #f
			      (conc " state "  
				    (if not-in "NOT" "") 
				    " IN ('" 

       (set! res (cons (apply vector a b) res))) ;; id run-id testname state status event-time host cpuload diskfree uname rundir item-path run-duration final-logf comment) res)))
     db 
     qry
     run-id
     ;; (if testpatt testpatt "%")
     ;; (if itempatt itempatt "%"))
     )
    (debug:print-info 11 "db:get-tests-for-run START run-id=" run-id ", testpatt=" testpatt ", states=" states ", statuses=" statuses ", not-in=" not-in ", sort-by=" sort-by)
    res))

;; this one is a bit broken BUG FIXME
(define (db:delete-test-step-records db test-id)
  ;; Breaking it into two queries for better file access interleaving
  (let* ((tdb (db:open-test-db-by-test-id db test-id)))
    ;; test db's can go away - must check every time