Megatest

  (conc megatest-version "-" megatest-fossil-hash))

(define (common:version-signature)
  (conc megatest-version "-" (substring megatest-fossil-hash 0 4)))

;; from metadat lookup MEGATEST_VERSION
;;
(define (common:get-last-run-version)
(define (common:get-last-run-version) ;; RADT => How does this work in send-receive function??; assume it is the value saved in some DB
  (rmt:get-var "MEGATEST_VERSION"))

(define (common:set-last-run-version)
  (rmt:set-var "MEGATEST_VERSION" (common:version-signature)))

(define (common:version-changed?)
  (not (equal? (common:get-last-run-version)
	       (common:version-signature))))

;; Move me elsewhere ...
;; RADT => Why do we meed the version check here, this is called only if version misma
;;
(define (common:cleanup-db)
  (db:multi-db-sync 
   #f ;; do all run-ids
   ;; 'new2old
   'killservers
   'dejunk
   ;; 'adj-testids
   ;; 'old2new
   'new2old)
  (if (common:version-changed?)
      (common:set-last-run-version)))

;; Force a megatest cleanup-db if version is changed and skip-version-check not specified
;;
(define (common:exit-on-version-changed)
  (if (common:version-changed?)
      (let ((mtconf (conc (get-environment-variable "MT_RUN_AREA_HOME") "/megatest.config")))
        (debug:print 0 *default-log-port*
		     "ERROR: Version mismatch!\n"
		     "   expected: " (common:version-signature) "\n"
		     "   got:      " (common:get-last-run-version))

					 (iup:destroy! dlog)))))))
    dlog))


;;======================================================================
;;
;;======================================================================
(define (examine-test run-id test-id) ;; run-id run-key origtest)
(define (dashboard-tests:examine-test run-id test-id) ;; run-id run-key origtest)
  (let* ((db-path       (db:dbfile-path run-id)) ;; (conc (configf:lookup *configdat* "setup" "linktree") "/db/" run-id ".db"))
	 (dbstruct      (make-dbr:dbstruct path:  (db:dbfile-path #f) ;; (configf:lookup *configdat* "setup" "linktree") 
					   local: #t))
	 (testdat        (rmt:get-test-info-by-id run-id test-id)) ;; (db:get-test-info-by-id dbstruct run-id test-id))
	 (db-mod-time   0) ;; (file-modification-time db-path))
	 (last-update   0) ;; (current-seconds))
	 (request-update #t))

   please-update:        #t
   update-mutex:         (make-mutex)
   updaters:             (make-hash-table)
   updating:             #f
   hide-not-hide-tabs:   #f
   ))

;; RA => returns the tabdat stored at hashkey passed in commondat-tabdats table (e.g. 0 gives summary)
;;
(define (dboard:common-get-tabdat commondat #!key (tab-num #f))
  (hash-table-ref/default 
   (dboard:commondat-tabdats commondat)
   (or tab-num (dboard:commondat-curr-tab-num commondat))
   (or tab-num (dboard:commondat-curr-tab-num commondat)) ;; tab-num value is curr-tab-num value in passed commondat
   #f))

;; RA => sets the tabdat passed to the hashkey at commondat:tabdats hash table
;;
(define (dboard:common-set-tabdat! commondat tabnum tabdat)
  (hash-table-set!
   (dboard:commondat-tabdats commondat)
   tabnum
   tabdat))

;; gets and calls updater based on curr-tab-num
;; gets and calls updater list based on curr-tab-num
(define (dboard:common-run-curr-updaters commondat #!key (tab-num #f))
  (if (dboard:common-get-tabdat commondat tab-num: tab-num) ;; only update if there is a tabdat
      (let* ((tnum     (or tab-num (dboard:commondat-curr-tab-num commondat)))
	     (updaters (hash-table-ref/default (dboard:commondat-updaters commondat)
					       tnum
					       '())))
	(debug:print 4 *default-log-port* "Found these updaters: " updaters " for tab-num: " tnum)
	(for-each
	(for-each ;; perform the function calls for the complete updaters list
	 (lambda (updater)
	   ;; (debug:print 3 *default-log-port* "Running " updater)
	   (updater))
	 updaters))))

;; if tab-num passed in then use it, otherwise look in commondat at curr-tab-num
;; adds the updater passed in the updaters list at that hashkey
;;
(define (dboard:commondat-add-updater commondat updater #!key (tab-num #f))
  (let* ((tnum          (or tab-num
			     (dboard:commondat-curr-tab-num commondat)))
	 (curr-updaters (hash-table-ref/default (dboard:commondat-updaters commondat) tnum '())))
    (hash-table-set! (dboard:commondat-updaters commondat)
		     tnum

			  (take-right (dboard:tabdat-allruns tabdat) numruns)
			  (pad-list (dboard:tabdat-allruns tabdat) numruns)))
	 (lftcol      (dboard:uidat-get-lftcol uidat))
	 (tableheader (dboard:uidat-get-header uidat))
	 (table       (dboard:uidat-get-runsvec uidat))
	 (coln        0)
	 (all-test-names (make-hash-table)))

    ;; create a concise list of test names
    ;;
    (for-each
     (lambda (rundat)
       (if rundat
	   (let* ((testdats  (dboard:rundat-tests rundat))
		  (testnames (map test:test-get-fullname (hash-table-values testdats))))

			   (color      (car (gutils:get-color-for-state-status teststate teststatus)))
			   (curr-color (vector-ref buttondat 1)) ;; (iup:attribute button "BGCOLOR"))
			   (curr-title (vector-ref buttondat 2))) ;; (iup:attribute button "TITLE")))
		      (if (not (equal? curr-color color))
			  (iup:attribute-set! button "BGCOLOR" color))
		      (if (not (equal? curr-title buttontxt))
			  (iup:attribute-set! button "TITLE"   buttontxt))
                      ;;(print "RA => testdat " testdat " teststate " teststate " teststatus " teststatus " buttondat " buttondat " curr-color " curr-color  " curr-title " curr-title "buttontxt" buttontxt " title " curr-title )
		      (vector-set! buttondat 0 run-id)
		      (vector-set! buttondat 1 color)
		      (vector-set! buttondat 2 buttontxt)
		      (vector-set! buttondat 3 testdat)
		      (vector-set! buttondat 4 run-key)))
		(set! rown (+ rown 1))))
	    (dboard:tabdat-all-test-names tabdat)))

		      #:click-cb
		      (lambda (obj lin col status)
			(let* ((toolpath (car (argv)))
			       (key      (conc lin ":" col))
			       (test-id  (hash-table-ref/default cell-lookup key -1))
			       (cmd      (conc toolpath " -test " (dboard:tabdat-curr-run-id tabdat) "," test-id "&")))
			  (system cmd)))))
	 (one-run-updater  
	 (one-run-updater  ;; RA => Prework done to ensure runs set before calling one-run-updater
          (lambda ()
	    (mutex-lock! update-mutex)
            (if  (or (dashboard:database-changed? commondat tabdat)
                     (dboard:tabdat-view-changed tabdat))
                 (debug:catch-and-dump
                  (lambda () ;; check that run-matrix is initialized before calling the updater
		    (if run-matrix 

   (iup:menu-item
    "Run"
    (iup:menu              
     (iup:menu-item
      (conc "Rerun " testpatt)
      #:action
      (lambda (obj)
        ;;(print "buttndat: " buttndat " run-id: " run-id " test-id: " test-id " target: " target " runname: " runname " test-name: " test-name " testpatt: " testpatt)
        ;; (print "buttndat: " buttndat " run-id: " run-id " test-id: " test-id " target: " target " runname: " runname " test-name: " test-name " testpatt: " testpatt)
	(common:run-a-command
	 (conc "megatest -run -target " target
	       " -runname " runname
	       " -testpatt " testpatt
	       " -preclean -clean-cache")
	 )))
     (iup:menu-item

     (iup:menu-item
      "Clean Complete Run"
      #:action
      (lambda (obj)
        (common:run-a-command
         (conc "megatest -remove-runs -target " target
               " -runname " runname
               " -testpatt % "))))))
               " -testpatt % "))))
     (iup:menu-item ;; RADT => itemize this run lists before merging with v1.61
      "Kill Complete Run"
      #:action
      (lambda (obj)
        (common:run-a-command
         (conc "megatest -set-state-status KILLREQ,n/a -target " target
               " -runname " runname
               " -testpatt % "
               "  -state RUNNING,REMOTEHOSTSTART,LAUNCHED"))))))
   (iup:menu-item
    "Test"
    (iup:menu 
     (iup:menu-item
      (conc "Rerun " test-name)
      #:action
      (lambda (obj)

			  " " tconfig " &")))
	  (system cmd))))
     ))))

(define (make-dashboard-buttons commondat) ;;  runs-sum-dat new-view-dat)
  (let* ((stats-dat       (dboard:tabdat-make-data))
	 (runs-dat        (dboard:tabdat-make-data))
	 (onerun-dat      (dboard:tabdat-make-data))
	 (onerun-dat      (dboard:tabdat-make-data)) ;; name for run-summary structure 
	 (runcontrols-dat (dboard:tabdat-make-data))
	 (runtimes-dat    (dboard:tabdat-make-data))
	 (nruns           (dboard:tabdat-numruns runs-dat))
	 (ntests          (dboard:tabdat-num-tests runs-dat))
	 (keynames        (dboard:tabdat-dbkeys runs-dat))
	 (nkeys           (length keynames))
	 (runsvec         (make-vector nruns))

     recalc))

;; point inside line
;;
(define-inline (dashboard:px-between px lx1 lx2)
  (and (< lx1 px)(> lx2 px)))

;;Not reference anywhere
;;
;; can a bar be placed in row "rownum" covering x1 to x2 without overlapping with existing 
;; bars? Use num-rows to check that a block will fit from rownum to (+ rownum num-rows)
;;
(define (dashboard:row-collision rowhash rownum x1 x2 #!key (num-rows #f))
  (let ((lastrow   (if num-rows (+ rownum num-rows) rownum)))
    (let loop ((i      0)
	       (rowdat (hash-table-ref/default rowhash rownum '())))

					(if (dboard:tabdat-layout-update-ok tabdat)
					    (runloop (car runtal)(cdr runtal) (+ run-num 1) newdoneruns)
					    (escapeloop #t) ;; (dboard:tabdat-layout-update-ok tabdat)
					    ))))))))) ;;  new-run-start-row
		)))
	(debug:print 2 *default-log-port* "no tabdat for run-times-tab-updater"))))

(define (tabdat-values tabdat)
  (let ((allruns (dboard:tabdat-allruns tabdat))
        (allruns-by-id (dboard:tabdat-allruns-by-id tabdat))
        (done-runs (dboard:tabdat-done-runs tabdat))
        (not-done-runs (dboard:tabdat-not-done-runs tabdat))
        (header  (dboard:tabdat-header  tabdat))
        (keys (dboard:tabdat-keys tabdat))
        (numruns (dboard:tabdat-numruns tabdat))
        (tot-runs (dboard:tabdat-tot-runs tabdat))
        (last-data-update (dboard:tabdat-last-data-update tabdat))
        (runs-mutex (dboard:tabdat-runs-mutex tabdat))
        (run-update-times (dboard:tabdat-run-update-times tabdat))
        (last-test-dat (dboard:tabdat-last-test-dat tabdat))
        (run-db-paths (dboard:tabdat-run-db-paths tabdat))
        (buttondat (dboard:tabdat-buttondat tabdat))
        (item-test-names (dboard:tabdat-item-test-names tabdat))
        (run-keys (dboard:tabdat-run-keys tabdat))
        (start-run-offset (dboard:tabdat-start-run-offset tabdat))
        (start-test-offset (dboard:tabdat-start-test-offset tabdat))
        (runs-btn-height (dboard:tabdat-runs-btn-height tabdat))
        (all-test-names (dboard:tabdat-all-test-names tabdat))
        (cnv (dboard:tabdat-cnv tabdat))
        (command (dboard:tabdat-command tabdat))
        (run-name (dboard:tabdat-run-name tabdat))
        (states (dboard:tabdat-states tabdat))
        (statuses (dboard:tabdat-statuses tabdat))
        (curr-run-id (dboard:tabdat-curr-run-id tabdat))
        (curr-test-ids (dboard:tabdat-curr-test-ids tabdat))
        (state-ignore-hash (dboard:tabdat-state-ignore-hash tabdat))
        (test-patts (dboard:tabdat-test-patts tabdat))
        (target (dboard:tabdat-target tabdat))
        (dbdir (dboard:tabdat-dbdir tabdat))
        (monitor-db-path (dboard:tabdat-monitor-db-path tabdat))
        (path-run-ids (dboard:tabdat-path-run-ids tabdat)))
        (print "allruns is : " allruns)
        (print "allruns-by-id is : " allruns-by-id)
        (print "done-runs is : " done-runs)
        (print "not-done-runs is : " not-done-runs)
        (print "header  is : " header )
        (print "keys is : " keys)
        (print "numruns is : " numruns)
        (print "tot-runs is : " tot-runs)
        (print "last-data-update is : " last-data-update)
        (print "runs-mutex is : " runs-mutex)
        (print "run-update-times is : " run-update-times)
        (print "last-test-dat is : " last-test-dat)
        (print "run-db-paths is : " run-db-paths)
        (print "buttondat is : " buttondat)
        (print "item-test-names is : " item-test-names)
        (print "run-keys is : " run-keys)
        (print "start-run-offset is : " start-run-offset)
        (print "start-test-offset is : " start-test-offset)
        (print "runs-btn-height is : " runs-btn-height)
        (print "all-test-names is : " all-test-names)
        (print "cnv is : " cnv)
        (print "command is : " command)
        (print "run-name is : " run-name)
        (print "states is : " states)
        (print "statuses is : " statuses)
        (print "curr-run-id is : " curr-run-id)
        (print "curr-test-ids is : " curr-test-ids)
        (print "state-ignore-hash is : " state-ignore-hash)
        (print "test-patts is : " test-patts)
        (print "target is : " target)
        (print "dbdir is : " dbdir)
        (print "monitor-db-path is : " monitor-db-path)
        (print "path-run-ids is : " path-run-ids)))

(define (dashboard:runs-tab-updater commondat tab-num)
  (debug:catch-and-dump 
   (lambda ()
     (let* ((tabdat (dboard:common-get-tabdat commondat tab-num: tab-num))
	    (dbkeys (dboard:tabdat-dbkeys tabdat)))
       ;;(print "RA => calling runs-tab-updater with commondat " commondat " tab-num " tab-num)
       ;;(tabdat-values tabdat) ;;RA added 
       (update-rundat tabdat
		      (hash-table-ref/default (dboard:tabdat-searchpatts tabdat) "runname" "%")
		      (dboard:tabdat-numruns tabdat)
		      (hash-table-ref/default (dboard:tabdat-searchpatts tabdat) "test-name" "%/%")
		      ;; (hash-table-ref/default (dboard:tabdat-searchpatts tabdat) "item-name" "%")
		      (let* ((dbkeys (dboard:tabdat-dbkeys tabdat)))
			;; (print "dbkeys: " dbkeys)

							   (let ((val (hash-table-ref/default (dboard:tabdat-searchpatts tabdat) key #f)))
							     (if val (set! res (cons (list key val) res))))))
						     dbkeys)
					   res))))
			  ;; (debug:print 0 *default-log-port* "fres: " fres)
			  fres)))
       (let ((uidat (dboard:commondat-uidat commondat)))
         ;;(print "RA => Calling update-buttons with tabdat : " tabdat " uidat " uidat)
	 (update-buttons tabdat uidat (dboard:tabdat-numruns tabdat) (dboard:tabdat-num-tests tabdat)))
       ))
   "dashboard:runs-tab-updater"))

;; ((2)
;;  (dashboard:update-run-summary-tab))
;; ((3)

(define (main)
  (if (not (args:get-arg "-skip-version-check"))(common:exit-on-version-changed))
  (let* ((commondat       (dboard:commondat-make)))
    ;; Move this stuff to db.scm? I'm not sure that is the right thing to do...
    (cond 
     ((args:get-arg "-test") ;; run-id,test-id
      (let* ((dat     (let ((d (map string->number (string-split (args:get-arg "-test") ","))))
      (let* ((dat     (let ((d (map string->number (string-split (args:get-arg "-test") ",")))) ;; RADT couldn't find string->number, though it works
			(if (> (length d) 1)
			    d
			    (list #f #f))))
	     (run-id  (car dat))
	     (test-id (cadr dat)))
	(if (and (number? run-id)
		 (number? test-id)
		 (>= test-id 0))
	    (examine-test run-id test-id)
	    (dashboard-tests:examine-test run-id test-id)
	    (begin
	      (debug:print 3 *default-log-port* "INFO: tried to open test with invalid run-id,test-id. " (args:get-arg "-test"))
	      (exit 1)))))
     ;; ((args:get-arg "-guimonitor")
     ;;  (gui-monitor (dboard:tabdat-dblocal tabdat)))
     (else
      (dboard:commondat-uidat-set! commondat (make-dashboard-buttons commondat)) ;; (dboard:tabdat-dblocal data)

;;  PURPOSE.
;;======================================================================

;;======================================================================
;; Database access
;;======================================================================

;; dbstruct vector containing all the relevant dbs like main.db, megatest.db, run.db etc

(require-extension (srfi 18) extras tcp)
(require-extension (srfi 18) extras tcp) ;; RADT => use of require-extension?
(use sqlite3 srfi-1 posix regex regex-case srfi-69 csv-xml s11n md5 message-digest base64 format dot-locking z3)
(import (prefix sqlite3 sqlite3:))
(import (prefix base64 base64:))
(import (prefix base64 base64:)) ;; RADT => prefix??

(declare (unit db))
(declare (uses common))
(declare (uses keys))
(declare (uses ods))
(declare (uses client))
(declare (uses mt))

(define *number-non-write-queries* 0)

;;======================================================================
;; SQLITE3 HELPERS
;;======================================================================

(define (db:general-sqlite-error-dump exn stmt . params)
  (let ((err-status ((condition-property-accessor 'sqlite3 'status #f) exn)))
  (let ((err-status ((condition-property-accessor 'sqlite3 'status #f) exn))) ;; RADT ... how does this work?
    ;; check for (exn sqlite3) ((condition-property-accessor 'exn 'message) exn)
    (print "err-status: " err-status)
    (debug:print-error 0 *default-log-port* " query " stmt " failed, params: " params ", error: " ((condition-property-accessor 'exn 'message) exn))
    (print-call-chain (current-error-port))))

;; convert to -inline
;; convert to -inline RADT => how inline?
(define (db:first-result-default db stmt default . params)
  (handle-exceptions
   exn
   (let ((err-status ((condition-property-accessor 'sqlite3 'status #f) exn)))
     ;; check for (exn sqlite3) ((condition-property-accessor 'exn 'message) exn)
     (if (eq? err-status 'done)
	 default
	 (begin
	   (debug:print-error 0 *default-log-port* " query " stmt " failed, params: " params ", error: " ((condition-property-accessor 'exn 'message) exn))
	   (print-call-chain (current-error-port))
	   default)))
   (apply sqlite3:first-result db stmt params)))

;; Get/open a database
;;    if run-id => get run specific db
;;    if #f     => get main db
;;    if db already open - return inmem
;;    if db not open, open inmem, rundb and sync then return inmem
;;    inuse gets set automatically for rundb's
;;
(define (db:get-db dbstruct run-id)
(define (db:get-db dbstruct run-id) ;; RADT => Where is dbstruct defined?
  (if (sqlite3:database? dbstruct) ;; pass sqlite3 databases on through
      dbstruct
      (begin
	(let ((dbdat (if (or (not run-id)
			     (eq? run-id 0))
			 (db:open-main dbstruct)
			 (db:open-rundb dbstruct run-id)
			 )))
	  dbdat))))

;;RADT => Purpose of dbdat?
;;
(define (db:dbdat-get-db dbdat)
  (if (pair? dbdat)
      (car dbdat)
      dbdat))

(define (db:dbdat-get-path dbdat)
  (if (pair? dbdat)
      (cdr dbdat)
      #f))

;; mod-read:
;;     'mod   modified data
;;     'read  read data
;; Locks the mutex and depending on 'mod or 'read passed, sets the last timestamp in dbstruct
;;
(define (db:done-with dbstruct run-id mod-read)
  (if (not (sqlite3:database? dbstruct))
      (begin
	(mutex-lock! *rundb-mutex*)
	(if (eq? mod-read 'mod)
	    (dbr:dbstruct-set-mtime! dbstruct (current-milliseconds))
	    (dbr:dbstruct-set-rtime! dbstruct (current-milliseconds)))
	(dbr:dbstruct-set-inuse! dbstruct #f)
	(mutex-unlock! *rundb-mutex*))))

;; (db:with-db dbstruct run-id sqlite3:exec "select blah from blaz;")
;; r/w is a flag to indicate if the db is modified by this query #t = yes, #f = no
;;
(define (db:with-db dbstruct run-id r/w proc . params)
  (let* ((dbdat (if (vector? dbstruct)
		    (db:get-db dbstruct run-id)
		    dbstruct)) ;; cheat, allow for passing in a dbdat
	 (db    (db:dbdat-get-db dbdat)))
	 (db    (db:dbdat-get-db dbdat))) ;;RADT => dbdat should already be a database, why need this function
    (db:delay-if-busy dbdat)
    (handle-exceptions
     exn
     (begin
       (debug:print-error 0 *default-log-port* "sqlite3 issue in db:with-db, dbstruct=" dbstruct ", run-id=" run-id ", proc=" proc ", params=" params " error: " ((condition-property-accessor 'exn 'message) exn))
       (print-call-chain (current-error-port)))
     (let ((res (apply proc db params)))
       (if (vector? dbstruct)(db:done-with dbstruct run-id r/w))
       (if (vector? dbstruct)(db:done-with dbstruct run-id r/w)) ;; RA => Mark timestamp on defstruct RADT => How come 'mod not passed instead of r/w 
       res))))

;;======================================================================
;; K E E P   F I L E D B   I N   dbstruct
;;======================================================================

;; (define (db:get-filedb dbstruct run-id)

;; NB// #f => return dbdir only
;;      (was planned to be;  zeroth db with name=main.db)
;;
(define (db:dbfile-path run-id)
  (let* ((dbdir           (db:get-dbdir))
	 (fname           (if run-id
			      (if (eq? run-id 0) "main.db" (conc run-id ".db"))
			      (if (eq? run-id 0) "main.db" (conc run-id ".db")) ;;main.db is assigned if run-id 0; does it mean main.db same as 1.db???
			      #f)))
    (handle-exceptions
     exn
     (begin
       (debug:print-error 0 *default-log-port* "Couldn't create path to " dbdir)
       (exit 1))
     (if (not (directory? dbdir))(create-directory dbdir #t)))
    (if fname
	(conc dbdir "/" fname)
	(conc dbdir "/" fname) ;;RADT => why not creating fname db if does not exist here 
	dbdir)))

;; Returns the database location as specified in config file
;;
(define (db:get-dbdir)
  (or (configf:lookup *configdat* "setup" "dbdir")
      (conc (configf:lookup *configdat* "setup" "linktree") "/.db")))
	       
(define (db:set-sync db)
  (let ((syncprag (configf:lookup *configdat* "setup" "sychronous")))
    (sqlite3:execute db (conc "PRAGMA synchronous = " (or syncprag 1) ";"))))
    (sqlite3:execute db (conc "PRAGMA synchronous = " (or syncprag 1) ";")))) ;; RADT => advantage of PRAGMA here??

;; open an sql database inside a file lock
;;
;; returns: db existed-prior-to-opening
;; RA => Returns a db handler; sets the lock if opened in writable mode
;;
(define (db:lock-create-open fname initproc)
  ;; (if (file-exists? fname)
  ;;     (let ((db (sqlite3:open-database fname)))
  ;;       (sqlite3:set-busy-handler! db (make-busy-timeout 136000))
  ;;       (db:set-sync db) ;; (sqlite3:execute db "PRAGMA synchronous = 0;")
  ;;       db)

		  (dbr:dbstruct-set-refdb!  dbstruct refdb)
		  (db:sync-tables db:sync-tests-only inmem refdb) ;; use inmem as the reference, don't read again from db
		  ;; sync once more to deal with delays?
		  ;; (db:sync-tables db:sync-tests-only db inmem)
		  ;; (db:sync-tables db:sync-tests-only inmem refdb)
		  inmem)))))))

;; This routine creates the db. It is only called if the db is not already ls opened
;; This routine creates the db if not already present. It is only called if the db is not already ls opened
;;
(define (db:open-main dbstruct) ;;  (conc *toppath* "/megatest.db") (car *configinfo*)))
  (let ((mdb (dbr:dbstruct-get-main dbstruct)))
(define (db:open-main dbstruct) ;;  (conc *toppath* "/megatest.db") (car *configinfo*))) 
  (let ((mdb (dbr:dbstruct-get-main dbstruct))) ;; RA => Returns the first reference in dbstruct
    (if mdb
	mdb
	(begin
	  (mutex-lock! *rundb-mutex*)
	  (let* ((dbpath       (db:dbfile-path 0))
		 (dbexists     (file-exists? dbpath))
		 (db           (db:lock-create-open dbpath db:initialize-main-db))

			   ;; this test is younger, store it in the hash
			   (hash-table-set! tests-hash full-testname testdat))))
		   results)
		  (if (null? tal)
		      (map cdr (hash-table->alist tests-hash)) ;; return a list of the most recent tests
		      (loop (car tal)(cdr tal))))))))))

;; Function recursively checks if <db>.journal exists; if yes means db busy; call itself after delayed interval
;; 
(define (db:delay-if-busy dbdat #!key (count 6))
  (if (not (configf:lookup *configdat* "server" "delay-on-busy"))
  (if (not (configf:lookup *configdat* "server" "delay-on-busy")) ;;RADT => two conditions in a if block?? also understand what config looked up
      (and dbdat (db:dbdat-get-db dbdat))
      (if dbdat
	  (let* ((dbpath (db:dbdat-get-path dbdat))
		 (db     (db:dbdat-get-db   dbdat)) ;; we'll return this so (db:delay--if-busy can be called inline
		 (dbfj   (conc dbpath "-journal")))
	    (if (handle-exceptions
		 exn
		 (begin
		   (debug:print-info 0 *default-log-port* "WARNING: failed to test for existance of " dbfj)
		   (thread-sleep! 1)
		   (db:delay-if-busy count (- count 1)))
		   (db:delay-if-busy count (- count 1))) ;; RADT => Don't we need to sent a dbstruct here?
		 (file-exists? dbfj))
		(case count
		  ((6)
		   (thread-sleep! 0.2)
		   (db:delay-if-busy count: 5))
		  ((5)
		   (thread-sleep! 0.4)

		   (db:delay-if-busy count: 1))
		  ((1)
		   (thread-sleep! 6.4)
		   (db:delay-if-busy count: 0))
		  (else
		   (debug:print-info 0 *default-log-port* "delaying db access due to high database load.")
		   (thread-sleep! 12.8))))
	    db)
	    db) ;; RADT => why does it need to return db, not #t
	  "bogus result from db:delay-if-busy")))

(define (db:test-get-records-for-index-file dbstruct run-id test-name)
  (let ((res '()))
    (db:with-db
     dbstruct
     run-id

(define (make-dbr:dbstruct #!key (path #f)(local #f))
  (let ((v (make-vector 15 #f)))
    (dbr:dbstruct-set-path! v path)
    (dbr:dbstruct-set-local! v local)
    (dbr:dbstruct-set-locdbs! v (make-hash-table))
    v))

;; Returns the database for a particular run-id fron the dbstruct:localdbs
;;
(define (dbr:dbstruct-get-localdb v run-id)
  (hash-table-ref/default (dbr:dbstruct-get-locdbs v) run-id #f))

(define (dbr:dbstruct-set-localdb! v run-id db)
  (hash-table-set! (dbr:dbstruct-get-locdbs v) run-id db))

  (conc (db:test-get-testname vec) "/" (db:test-get-item-path vec)))

;; replace runs:make-full-test-name with this routine
(define (db:test-make-full-name testname itempath)
  (if (equal? itempath "") testname (conc testname "/" itempath)))

(define-inline (db:test-get-first_err    vec) (printable (vector-ref vec 15)))
(define-inline (db:test-get-first_warn   vec) (printable (vector-ref vec 16)))
(define-inline (db:test-get-first_warn   vec) (printable (vector-ref vec 16))) ;; RADT => reference 16 is repeated

(define-inline (db:test-set-cpuload!  vec val)(vector-set! vec 7 val))
(define-inline (db:test-set-diskfree! vec val)(vector-set! vec 8 val))
(define-inline (db:test-set-testname! vec val)(vector-set! vec 2 val))
(define-inline (db:test-set-state!    vec val)(vector-set! vec 3 val))
(define-inline (db:test-set-status!   vec val)(vector-set! vec 4 val))
(define-inline (db:test-set-run_duration! vec val)(vector-set! vec 12 val))
(define-inline (db:test-set-final_logf! vec val)(vector-set! vec 13 val))

;; Test record utility functions

;; Is a test a toplevel?
;;
(define (db:test-get-is-toplevel vec)
  (and (equal? (db:test-get-item-path vec) "")      ;; test is not an item
       (equal? (db:test-get-uname vec)     "n/a"))) ;; test has never been run

;; make-vector-record "" db mintest id run_id testname state status event_time item_path
;; RADT => purpose of mintest??
;;
(define (make-db:mintest)(make-vector 7))
(define-inline (db:mintest-get-id           vec)    (vector-ref  vec 0))
(define-inline (db:mintest-get-run_id       vec)    (vector-ref  vec 1))
(define-inline (db:mintest-get-testname     vec)    (vector-ref  vec 2))
(define-inline (db:mintest-get-state        vec)    (vector-ref  vec 3))
(define-inline (db:mintest-get-status       vec)    (vector-ref  vec 4))

;;======================================================================
;; Copyright 2006-2013, Matthew Welland.
;; 
;;  This program is made available under the GNU GPL version 2.0 or
;;  greater. See the accompanying file COPYING for details.
;; 
;;  This program is distributed WITHOUT ANY WARRANTY; without even the
;;  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;;  PURPOSE.
;;======================================================================

(use json format)
(use json format) ;; RADT => purpose of json format??

(declare (unit rmt))
(declare (uses api))
(declare (uses tdb))
(declare (uses http-transport))
(declare (uses nmsg-transport))

	;; NB// can cache the answer for server running for 10 seconds ...
	;;  ;; (and (not (rmt:write-frequency-over-limit? cmd run-id))
	(if (tasks:server-running-or-starting? (db:delay-if-busy (tasks:open-db)) run-id)
	    (client:setup run-id)
	    #f))))

(define *send-receive-mutex* (make-mutex)) ;; should have separate mutex per run-id

;; RA => e.g. usage (rmt:send-receive 'get-var #f (list varname))
;;
(define (rmt:send-receive cmd rid params #!key (attemptnum 1)) ;; start attemptnum at 1 so the modulo below works as expected
  ;; clean out old connections
  ;; (mutex-lock! *db-multi-sync-mutex*)
  (let ((expire-time (- (current-seconds) (server:get-timeout) 10))) ;; don't forget the 10 second margin
    (for-each 
     (lambda (run-id)
       (let ((connection (hash-table-ref/default *runremote* run-id #f)))