Megatest

	 (target   (common:args-get-target))
	 (linktree (common:get-linktree))
	 (sections (if target (list "default" target) #f)) ;; for runconfigs
	 (mtconfig (or (args:get-arg "-config") "megatest.config")) ;; allow overriding megatest.config 
	 (rundir   (if (and runname target linktree)(conc linktree "/" target "/" runname) #f))
	 (mtcachef (and rundir (conc rundir "/" ".megatest.cfg-"  megatest-version "-" megatest-fossil-hash)))
	 (rccachef (and rundir (conc rundir "/" ".runconfigs.cfg-"  megatest-version "-" megatest-fossil-hash)))
	 (cancreate (and rundir (file-exists? rundir)(file-write-access? rundir))))
	 (cancreate (and rundir (file-exists? rundir)(file-write-access? rundir)))
         (cxt       (hash-table-ref/default *contexts* toppath #f)))

    ;; create our cxt for this area if it doesn't already exist
    (if (not cxt)(hash-table-set! *contexts* toppath (make-cxt)))

    ;; (print "runname: " runname " target: " target " mtcachef: " mtcachef " rccachef: " rccachef)
    (set! *toppath* toppath) ;; This is needed when we are running as a test using CMDINFO as a datasource
    (cond
     ;; data was read and cached and available in *configstatus*, toppath has already been set
     ((eq? *configstatus* 'fulldata)
      *toppath*)
     ;; if mtcachef exists just read it, however we need to assume toppath is available in $MT_RUN_AREA_HOME

;; 2. create run dir on disk, path name is meaningful
;; 3. create link from run dir to megatest runs area 
;; 4. remotely run the test on allocated host
;;    - could be ssh to host from hosts table (update regularly with load)
;;    - could be netbatch
;;      (launch-test db (cadr status) test-conf))
(define (launch-test test-id run-id run-info keyvals runname test-conf test-name test-path itemdat params)
  (let loop ((delta        (- (current-seconds) *last-launch*))
	     (launch-delay (string->number (or (configf:lookup *configdat* "setup" "launch-delay") "5"))))
    (if (> launch-delay delta)
	(begin
	  (debug:print-info 0 *default-log-port* "Delaying launch of " test-name " for " (- launch-delay delta) " seconds")
	  (thread-sleep! (- launch-delay delta))
	  (loop (- (current-seconds) *last-launch*) launch-delay))))
  (set! *last-launch* (current-seconds))
  (change-directory *toppath*)
  (alist->env-vars ;; consolidate this code with the code in megatest.scm for "-execute"
   (list ;; (list "MT_TEST_RUN_DIR" work-area)
    (list "MT_RUN_AREA_HOME" *toppath*)
    (list "MT_TEST_NAME" test-name)
    ;; (list "MT_ITEM_INFO" (conc itemdat)) 
    (list "MT_RUNNAME"   runname)