Megatest

	 (test-records       (make-hash-table))
	 ;; need to process runconfigs before generating these lists
	 (all-tests-registry #f)  ;; (tests:get-all)) ;; (tests:get-valid-tests (make-hash-table) test-search-path)) ;; all valid tests to check waiton names
	 (all-test-names     #f)  ;; (hash-table-keys all-tests-registry))
	 (test-names         #f)  ;; (tests:filter-test-names all-test-names test-patts))
	 (required-tests     #f)  ;;(lset-intersection equal? (string-split test-patts ",") test-names))) ;; test-names)) ;; Added test-names as initial for required-tests but that failed to work
	 (task-key           (conc (hash-table->alist flags) " " (get-host-name) " " (current-process-id)))
	 (tasks-db           (tasks:open-db)))
	 (tdbdat             (tasks:open-db)))

    (set-signal-handler! signal/int
			 (lambda (signum)
			   (signal-mask! signum)
			   (print "Received signal " signum ", cleaning up before exit. Please wait...")
			   (let ((tdb (tasks:open-db)))
			     (tasks:set-state-given-param-key tdb task-key "killed")
			   (let ((tdbdat (tasks:open-db)))
			     (tasks:set-state-given-param-key (db:delay-if-busy tdbdat) task-key "killed"))
			     ;; (sqlite3:interrupt! tdb) ;; seems silly?
			     (sqlite3:finalize! tdb))
			   (print "Killed by signal " signum ". Exiting")
			   (exit)))

    ;; register this run in monitor.db
    (tasks:add tasks-db "run-tests" user target runname test-patts task-key) ;; params)
    (tasks:set-state-given-param-key tasks-db task-key "running")
    (tasks:add (db:delay-if-busy tdbdat) "run-tests" user target runname test-patts task-key) ;; params)
    (tasks:set-state-given-param-key (db:delay-if-busy tdbdat) task-key "running")
    (runs:set-megatest-env-vars run-id inkeys: keys inrunname: runname) ;; these may be needed by the launching process
    (if (file-exists? runconfigf)
	(setup-env-defaults runconfigf run-id *already-seen-runconfig-info* keyvals target)
	(debug:print 0 "WARNING: You do not have a run config file: " runconfigf))

    ;; Now generate all the tests lists
    (set! all-tests-registry (tests:get-all))

		  (if (not (hash-table-ref/default flags "-preclean" #f))
		      (hash-table-set! flags "-preclean" #t))
		  (if (not (hash-table-ref/default flags "-rerun" #f))
		      (hash-table-set! flags "-rerun" "STUCK/DEAD,n/a,ZERO_ITEMS"))
		  (runs:run-tests target runname test-patts user flags run-count: (- run-count 1)))))
	  (debug:print-info 0 "No tests to run")))
    (debug:print-info 4 "All done by here")
    (tasks:set-state-given-param-key tasks-db task-key "done")
    (sqlite3:finalize! tasks-db)))
    (tasks:set-state-given-param-key (db:delay-if-busy tdbdat) task-key "done")
    ;; (sqlite3:finalize! tasks-db)
    ))


;; loop logic. These are used in runs:run-tests-queue to make it a bit more readable.
;;
;; If reg not full and have items in tal then loop with (car tal)(cdr tal) reg reruns
;; If reg is full (i.e. length >= n
;;   loop with (car reg) tal (cdr reg) reruns

;;    'set-state-status
;;
;; NB// should pass in keys?
;;
(define (runs:operate-on action target runnamepatt testpatt #!key (state #f)(status #f)(new-state-status #f)(remove-data-only #f))
  (common:clear-caches) ;; clear all caches
  (let* ((db           #f)
	 (tasks-db     (tasks:open-db))
	 (tdbdat       (tasks:open-db))
	 (keys         (rmt:get-keys))
	 (rundat       (mt:get-runs-by-patt keys runnamepatt target))
	 (header       (vector-ref rundat 0))
	 (runs         (vector-ref rundat 1))
	 (states       (if state  (string-split state  ",") '()))
	 (statuses     (if status (string-split status ",") '()))
	 (state-status (if (string? new-state-status) (string-split new-state-status ",") '(#f #f))))

	   (debug:print-info 4 "runs:operate-on run=" run ", header=" header)
	   (if (not (null? tests))
	       (begin
		 (case action
		   ((remove-runs)
		    ;; seek and kill in flight -runtests with % as testpatt here
		    (if (equal? testpatt "%")
			(tasks:kill-runner tasks-db target run-name)
			(tasks:kill-runner (db:delay-if-busy tdbdat) target run-name)
			(debug:print 0 "not attempting to kill any run launcher processes as testpatt is " testpatt))
		    (debug:print 1 "Removing tests for run: " runkey " " (db:get-value-by-header run header "runname")))
		   ((set-state-status)
		    (debug:print 1 "Modifying state and staus for tests for run: " runkey " " (db:get-value-by-header run header "runname")))
		   ((print-run)
		    (debug:print 1 "Printing info for run " runkey ", run=" run ", tests=" tests ", header=" header)
		    action)

		       ;;    (if (null? (glob (conc runpath "/*")))
		       ;;        (begin
		       ;; 	 (debug:print 1 "Removing run dir " runpath)
		       ;; 	 (system (conc "rmdir -p " runpath))))
		       )))))
	 ))
     runs)
    (sqlite3:finalize! tasks-db))
    ;; (sqlite3:finalize! (db:delay-if-busy tdbdat))
    )
  #t)

(define (runs:remove-test-directory db test remove-data-only)
  (let* ((run-dir       (db:test-get-rundir test))    ;; run dir is from the link tree
	 (real-dir      (if (file-exists? run-dir)
			    (resolve-pathname run-dir)
			    #f)))