Megatest

	     (hash-table-set! vals (car key) (cadr key))) ;; (cdb:remote-run db:get-run-key-val #f run-id (car key))))
	   keyvals)))
    ;; from the cached data set the vars
    (hash-table-for-each
     vals
     (lambda (key val)
       (debug:print 2 "setenv " key " " val)
       (if (and (string? key)
		(string? val))
	   (setenv key val)
	   (debug:print 0 "ERROR: Malformed environment variable definition: var=" var ", val=" val))))
    (if (not (get-environment-variable "MT_TARGET"))(setenv "MT_TARGET" target))
    (alist->env-vars (hash-table-ref/default *configdat* "env-override" '()))
    ;; Lets use this as an opportunity to put MT_RUNNAME in the environment
    (setenv "MT_RUNNAME" (if inrunname inrunname (cdb:remote-run db:get-run-name-from-id #f run-id)))
    (setenv "MT_RUN_AREA_HOME" *toppath*)))

(define (set-item-env-vars itemdat)

	 (deferred          '()) ;; delay running these since they have a waiton clause
	 (runconfigf         (conc  *toppath* "/runconfigs.config"))
	 (required-tests    '())
	 (test-records       (make-hash-table))
	 (all-tests-registry (tests:get-all)) ;; (tests:get-valid-tests (make-hash-table) test-search-path)) ;; all valid tests to check waiton names
	 (all-test-names     (hash-table-keys all-tests-registry))
	 (test-names         (tests:filter-test-names all-test-names test-patts)))

    ;; Update the synchronous setting in the db based on the default or what is set by the user
    ;; This is done once here on a call to run tests rather than on every call to open-db
    (cdb:remote-run db:set-sync #f)

    (set-megatest-env-vars run-id inkeys: keys) ;; these may be needed by the launching process
    (if (file-exists? runconfigf)
	(setup-env-defaults runconfigf run-id *already-seen-runconfig-info* keyvals "pre-launch-env-vars")
	(debug:print 0 "WARNING: You do not have a run config file: " runconfigf))
    
    ;; look up all tests matching the comma separated list of globs in
    ;; test-patts (using % as wildcard)

	(begin
	  ;; have to delete test records where NOT_STARTED since they can cause -keepgoing to 
	  ;; get stuck due to becoming inaccessible from a failed test. I.e. if test B depends 
	  ;; on test A but test B reached the point on being registered as NOT_STARTED and test
	  ;; A failed for some reason then on re-run using -keepgoing the run can never complete.
	  (cdb:delete-tests-in-state *runremote* run-id "NOT_STARTED")
	  (cdb:remote-run db:set-tests-state-status #f run-id test-names #f "FAIL" "NOT_STARTED" "FAIL")))

    ;; Ensure all tests are registered in the test_meta table
    (runs:update-all-test_meta #f)

    ;; now add non-directly referenced dependencies (i.e. waiton)
    ;;======================================================================
    ;; refactoring this block into tests:get-full-data
    ;;
    ;; What happended, this code is now duplicated in tests!?
    ;;

      (cdr reg)
      (if (null? tal) ;; if tal is null and reg not full then '() as reg contents moved to tal
	  '()
	  reg)))

(define runs:nothing-left-in-queue-count 0)

(define (runs:expand-items hed tal reg reruns regfull newtal jobgroup max-concurrent-jobs run-id waitons item-path testmode test-record can-run-more items runname tconfig reglen test-registry test-records)
  (let* ((loop-list       (list hed tal reg reruns))
	 (prereqs-not-met (mt:lazy-get-prereqs-not-met run-id waitons item-path mode: testmode))
	 (fails           (runs:calc-fails prereqs-not-met))
	 (non-completed   (runs:calc-not-completed prereqs-not-met)))
    (debug:print-info 4 "START OF INNER COND #2 "
		      "\n can-run-more:    " can-run-more
		      "\n testname:        " hed
		      "\n prereqs-not-met: " (runs:pretty-string prereqs-not-met)
		      "\n non-completed:   " (runs:pretty-string non-completed) 
		      "\n fails:           " (runs:pretty-string fails)
		      "\n testmode:        " testmode
		      "\n (eq? testmode 'toplevel): " (eq? testmode 'toplevel)
		      "\n (null? non-completed):    " (null? non-completed)
		      "\n reruns:          " reruns
		      "\n items:           " items
		      "\n can-run-more:    " can-run-more)

    (cond
     ;; all prereqs met, fire off the test
     ;; or, if it is a 'toplevel test and all prereqs not met are COMPLETED then launch

     ((member (hash-table-ref/default test-registry (runs:make-full-test-name hed item-path) 'n/a)
	      '(DONOTRUN removed)) ;; *common:cant-run-states-sym*) ;; '(COMPLETED KILLED WAIVED UNKNOWN INCOMPLETE)) ;; try to catch repeat processing of COMPLETED tests here
      (debug:print-info 1 "Test " hed " set to \"" (hash-table-ref test-registry (runs:make-full-test-name hed item-path)) "\". Removing it from the queue")
      (if (or (not (null? tal))
	      (not (null? reg)))
	  (list (runs:queue-next-hed tal reg reglen regfull)
		(runs:queue-next-tal tal reg reglen regfull)

	(set-megatest-env-vars run-id inrunname: runname) ;; these may be needed by the launching process
	(let ((items-list (items:get-items-from-config tconfig)))
	  (if (list? items-list)
	      (begin
		(tests:testqueue-set-items! test-record items-list)
		(list hed tal reg reruns))
	      (begin
		(debug:print 0 "ERROR: The proc from reading the items table did not yield a list - please report this")
		(exit 1))))))

     ((and (null? fails)
	   (not (null? non-completed)))
      (let* ((allinqueue (map (lambda (x)(if (string? x) x (db:test-get-testname x)))
        		      (append newtal reruns)))
	     ;; prereqstrs is a list of test names as strings that are prereqs for hed

	;; We need to use this to dequeue this item as CANNOTRUN
	(for-each (lambda (prereq)
		    (if (eq? (hash-table-ref/default test-registry prereq 'justfine) 'CANNOTRUN)
			(set! give-up #t)))
		  prereqstrs)
	(if (and give-up
		 (not (and (null? tal)(null? reg))))
	    (let ((trimmed-tal (mt:discard-blocked-tests run-id hed tal test-records))
		  (trimmed-reg (mt:discard-blocked-tests run-id hed reg test-records)))
	      (debug:print 1 "WARNING: test " hed " has discarded prerequisites, removing it from the queue")
	      (if (and (null? trimmed-tal)
		       (null? trimmed-reg))
		  #f
		  (list (runs:queue-next-hed trimmed-tal trimmed-reg reglen regfull)
			(runs:queue-next-tal trimmed-tal trimmed-reg reglen regfull)
			(runs:queue-next-reg trimmed-tal trimmed-reg reglen regfull)
			reruns)))
	      (list (car newtal)(append (cdr newtal) reg) '() reruns))))


     ;; (debug:print-info 1 "allinqueue: " allinqueue)
     ;; (debug:print-info 1 "prereqstrs: " prereqstrs)
     ;; (debug:print-info 1 "notinqueue: " notinqueue)
     ;; (debug:print-info 1 "tal:        " tal)
     ;; (debug:print-info 1 "newtal:     " newtal)
     ;; (debug:print-info 1 "reg:        " reg)

(define (runs:process-expanded-tests hed tal reg reruns reglen regfull test-record runname test-name item-path jobgroup max-concurrent-jobs run-id waitons item-path testmode test-patts required-tests test-registry registry-mutex flags keyvals run-info newtal all-tests-registry)
  (let* ((run-limits-info         (runs:can-run-more-tests jobgroup max-concurrent-jobs)) ;; look at the test jobgroup and tot jobs running
	 (have-resources          (car run-limits-info))
	 (num-running             (list-ref run-limits-info 1))
	 (num-running-in-jobgroup (list-ref run-limits-info 2)) 
	 (max-concurrent-jobs     (list-ref run-limits-info 3))
	 (job-group-limit         (list-ref run-limits-info 4))
	 (prereqs-not-met         (mt:lazy-get-prereqs-not-met run-id waitons item-path mode: testmode))
	 (fails                   (runs:calc-fails prereqs-not-met))
	 (non-completed           (runs:calc-not-completed prereqs-not-met))
	 (loop-list               (list hed tal reg reruns)))
    (debug:print-info 4 "have-resources: " have-resources " prereqs-not-met: (" 
		      (string-intersperse 
		       (map (lambda (t)
			      (if (vector? t)

     
     ;; This is the final stage, everything is in place so launch the test
     ;;
     ((and have-resources
	   (or (null? prereqs-not-met)
	       (and (eq? testmode 'toplevel)
		    (null? non-completed))))
      ;; (hash-table-delete! *max-tries-hash* (runs:make-full-test-name test-name item-path))
      ;; we are going to reset all the counters for test retries by setting a new hash table
      ;; this means they will increment only when nothing can be run
      (set! *max-tries-hash* (make-hash-table))
      (run:test run-id run-info keyvals runname test-record flags #f test-registry all-tests-registry)
      (hash-table-set! test-registry (runs:make-full-test-name test-name item-path) 'running)
      (runs:shrink-can-run-more-tests-count)  ;; DELAY TWEAKER (still needed?)
      ;; (thread-sleep! *global-delta*)
      (if (or (not (null? tal))(not (null? reg)))
	  (list (runs:queue-next-hed tal reg reglen regfull)
		(runs:queue-next-tal tal reg reglen regfull)
		(runs:queue-next-reg tal reg reglen regfull)
		reruns)
	  #f))
     
     ;; must be we have unmet prerequisites
     ;;
     (else
      (debug:print 4 "FAILS: " fails)
      ;; If one or more of the prereqs-not-met are FAIL then we can issue
      ;; a message and drop hed from the items to be processed.
      ;; (runs:mixed-list-testname-and-testrec->list-of-strings prereqs-not-met)
      (if (not (null? prereqs-not-met))
	  (debug:print-info 1 "waiting on tests; " (string-intersperse 
						    (runs:mixed-list-testname-and-testrec->list-of-strings 
						     prereqs-not-met) ", ")))
      
      (if (null? fails)
	  (begin
	    ;; couldn't run, take a breather
	    (debug:print-info 0 "Waiting for more work to do...")
	    (thread-sleep! 1)
	    (list (car newtal)(cdr newtal) reg reruns))

			  (cons hed reruns)))
		  (begin
		    (debug:print 0 "WARNING: Test not processed correctly. Could be a race condition in your test implementation? Dropping test " hed) ;;  " as it has prerequistes that are FAIL. (NOTE: hed is not a vector)")
		    (runs:shrink-can-run-more-tests-count) ;; DELAY TWEAKER (still needed?)
		    ;; (list hed tal reg reruns)
		    (list (car newtal)(cdr newtal) reg reruns)
		    ))))))))

;; every time though the loop increment the test/itempatt val.
;; when the min is > max-allowed and none running then force exit
;;
(define *max-tries-hash* (make-hash-table))

;; test-records is a hash table testname:item_path => vector < testname testconfig waitons priority items-info ... >
(define (runs:run-tests-queue run-id runname test-records keyvals flags test-patts required-tests reglen-in all-tests-registry)
  ;; At this point the list of parent tests is expanded 
  ;; NB// Should expand items here and then insert into the run queue.
  (debug:print 5 "test-records: " test-records ", flags: " (hash-table->alist flags))

  ;; Do mark-and-find clean up of db before starting runing of quue
  ;;
  ;; (cdb:remote-run db:find-and-mark-incomplete #f)

  (let ((run-info              (cdb:remote-run db:get-run-info #f run-id))
	(tests-info            (mt:get-tests-for-run run-id #f '() '())) ;;  qryvals: "id,testname,item_path"))
	(sorted-test-names     (tests:sort-by-priority-and-waiton test-records))
	(test-registry         (make-hash-table))
	(registry-mutex        (make-mutex))
	(num-retries           0)
	(max-retries           (config-lookup *configdat* "setup" "maxretries"))
	(max-concurrent-jobs   (let ((mcj (config-lookup *configdat* "setup"     "max_concurrent_jobs")))
				 (if (and mcj (string->number mcj))
				     (string->number mcj)
				     1))) ;; length of the register queue ahead
	(reglen                (if (number? reglen-in) reglen-in 1))
	(last-time-incomplete  (current-seconds)))

    ;; Initialize the test-registery hash with tests that already have a record
    ;; convert state to symbol and use that as the hash value
    (for-each (lambda (trec)
		(let ((id (db:test-get-id        trec))
		      (tn (db:test-get-testname  trec))
		      (ip (db:test-get-item-path trec))
		      (st (db:test-get-state     trec)))
		  (if (not (equal? st "DELETED"))
		      (hash-table-set! test-registry (runs:make-full-test-name tn ip) (string->symbol st)))))
	      tests-info)
    (set! max-retries (if (and max-retries (string->number max-retries))(string->number max-retries) 100))

    (let loop ((hed         (car sorted-test-names))
	       (tal         (cdr sorted-test-names))
	       (reg         '()) ;; registered, put these at the head of tal 
	       (reruns      '()))
      (if (not (null? reruns))(debug:print-info 4 "reruns=" reruns))

      ;; Here we mark any old defunct tests as incomplete. Do this every fifteen minutes
      ;; (if (> (current-seconds)(+ last-time-incomplete 900))
      ;;     (begin
      ;;       (set! last-time-incomplete (current-seconds))
      ;;       (cdb:remote-run db:find-and-mark-incomplete #f)))

      ;; (print "Top of loop, hed=" hed ", tal=" tal " ,reruns=" reruns)
      (let* ((test-record (hash-table-ref test-records hed))
	     (test-name   (tests:testqueue-get-testname test-record))
	     (tconfig     (tests:testqueue-get-testconfig test-record))
	     (jobgroup    (config-lookup tconfig "requirements" "jobgroup"))
	     (testmode    (let ((m (config-lookup tconfig "requirements" "mode")))
			    (if m (string->symbol m) 'normal)))
	     (waitons     (tests:testqueue-get-waitons    test-record))
	     (priority    (tests:testqueue-get-priority   test-record))
	     (itemdat     (tests:testqueue-get-itemdat    test-record)) ;; itemdat can be a string, list or #f
	     (items       (tests:testqueue-get-items      test-record))
	     (item-path   (item-list->path itemdat))
	     (tfullname   (runs:make-full-test-name test-name item-path))
	     (newtal      (append tal (list hed)))
	     (regfull     (>= (length reg) reglen)))

	(hash-table-set! *max-tries-hash* tfullname (+ (hash-table-ref/default *max-tries-hash* tfullname 0) 1))
	;; (debug:print 0 "max-tries-hash: " (hash-table->alist *max-tries-hash*))

	;; Ensure all top level tests get registered. This way they show up as "NOT_STARTED" on the dashboard
	;; and it is clear they *should* have run but did not.
	(if (not (hash-table-ref/default test-registry (runs:make-full-test-name test-name "") #f))
	    (begin
	      (cdb:tests-register-test *runremote* run-id test-name "")
	      (hash-table-set! test-registry (runs:make-full-test-name test-name "") 'done)))

	;; error
	(if (member test-name waitons)
	    (begin
	      (debug:print 0 "ERROR: test " test-name " has listed itself as a waiton, please correct this!")
	      (set! waiton (filter (lambda (x)(not (equal? x hed))) waitons))))

	(cond 
	 
	 ;; We want to catch tests that have waitons that are NOT in the queue and discard them IFF 
	 ;; they have been through the wringer 10 or more times
	 ((and (list? waitons)
	       (not (null? waitons))
	       (> (hash-table-ref/default *max-tries-hash* tfullname 0) 10)
	       (not (null? (filter
			    number?
			    (map (lambda (waiton)
				   (if (and (not (member waiton tal))            ;; this waiton is not in the list to be tried to run
					    (not (member waiton reruns)))
				       1
				       #f))
				 waitons))))) ;; could do this more elegantly with a marker....
	  (debug:print 0 "WARNING: Marking test " tfullname " as not runnable. It is waiting on tests that cannot be run. Giving up now.")
	  (hash-table-set! test-registry tfullname 'removed))

	 ;; items is #f then the test is ok to be handed off to launch (but not before)
	 ;; 
	 ((not items)
	  (debug:print-info 4 "OUTER COND: (not items)")
	  (if (and (not (tests:match test-patts (tests:testqueue-get-testname test-record) item-path required: required-tests))
		   (not (null? tal)))

	 ;; if items is a proc then need to run items:get-items-from-config, get the list and loop 
	 ;;    - but only do that if resources exist to kick off the job
	 ;; EXPAND ITEMS
	 ((or (procedure? items)(eq? items 'have-procedure))
	  (let ((can-run-more    (runs:can-run-more-tests jobgroup max-concurrent-jobs)))
	    (if (and (list? can-run-more)
		     (car can-run-more))
		(let ((loop-list (runs:expand-items hed tal reg reruns regfull newtal jobgroup max-concurrent-jobs run-id waitons item-path testmode test-record can-run-more items runname tconfig reglen test-registry test-records)))
		  (if loop-list
		      (apply loop loop-list)))
		;; if can't run more just loop with next possible test
		(loop (car newtal)(cdr newtal) reg reruns))))
	    
	 ;; this case should not happen, added to help catch any bugs
	 ((and (list? items) itemdat)

    (setenv "MT_ITEMPATH"  item-path)
    (setenv "MT_RUNNAME"   runname)
    (set-megatest-env-vars run-id inrunname: runname) ;; these may be needed by the launching process
    (change-directory *toppath*)

    ;; Here is where the test_meta table is best updated
    ;; Yes, another use of a global for caching. Need a better way?
    ;;
    ;; There is now a single call to runs:update-all-test_meta and this 
    ;; per-test call is not needed. Given the delicacy of the move to 
    ;; v1.55 this code is being left in place for the time being.
    ;;
    (if (not (hash-table-ref/default *test-meta-updated* test-name #f))
        (begin
	   (hash-table-set! *test-meta-updated* test-name #t)
           (runs:update-test_meta test-name test-conf)))
    
    ;; itemdat => ((ripeness "overripe") (temperature "cool") (season "summer"))
    (let* ((new-test-path (string-intersperse (cons test-path (map cadr itemdat)) "/"))
	   (test-id       (cdb:remote-run db:get-test-id-cached #f  run-id test-name item-path))
	   (testdat       (if test-id (cdb:get-test-info-by-id *runremote* test-id) #f)))
      (if (not testdat)
	  (let loop ()
	    ;; ensure that the path exists before registering the test
	    ;; NOPE: Cannot! Don't know yet which disk area will be assigned....
	    ;; (system (conc "mkdir -p " new-test-path))
	    ;;
	    ;; (open-run-close tests:register-test db run-id test-name item-path)
	    ;;
	    ;; NB// for the above line. I want the test to be registered long before this routine gets called!
	    ;;
	    (if (not test-id)(set! test-id (cdb:remote-run db:get-test-id-cached #f run-id test-name item-path)))
	    (if (not test-id)
		(begin
		  (debug:print 2 "WARN: Test not pre-created? test-name=" test-name ", item-path=" item-path ", run-id=" run-id)
		  (cdb:tests-register-test *runremote* run-id test-name item-path)
		  (set! test-id (cdb:remote-run db:get-test-id-cached #f run-id test-name item-path))))
	    (debug:print-info 4 "test-id=" test-id ", run-id=" run-id ", test-name=" test-name ", item-path=\"" item-path "\"")
	    (set! testdat (cdb:get-test-info-by-id *runremote* test-id))
	    (if (not testdat)
		(begin
		  (debug:print-info 0 "WARNING: server is overloaded, trying again in one second")
		  (thread-sleep! 1)
		  (loop)))))

	     (begin
	       (print "Updating " test-name " " fld " to " val)
	       (cdb:remote-run db:testmeta-update-field #f test-name fld val)))))
     '(("author" 2)("owner" 3)("description" 4)("reviewed" 5)("tags" 9)))))

;; Update test_meta for all tests
(define (runs:update-all-test_meta db)
  (let ((test-names (tests:get-all))) ;; (tests:get-valid-tests)))
    (for-each 
     (lambda (test-name)
       (let* ((test-conf    (mt:lazy-read-test-config test-name)))
	 ;; use the cdb:remote-run instead of passing in db
	 (if test-conf (runs:update-test_meta test-name test-conf))))
     (hash-table-keys test-names))))

;; This could probably be refactored into one complex query ...
(define (runs:rollup-run keys runname user keyvals)
  (debug:print 4 "runs:rollup-run, keys: " keys " :runname " runname " user: " user)
  (let* ((db              #f)
	 (new-run-id      (cdb:remote-run db:register-run #f keyvals runname "new" "n/a" user))
	 (prev-tests      (cdb:remote-run test:get-matching-previous-test-run-records db new-run-id "%" "%"))