Megatest

(define (runs:queue-next-reg tal reg n regful)
  (if regful
      (cdr reg)
      (if (null? tal) ;; if tal is null and reg not full then '() as reg contents moved to tal
	  '()
	  reg)))

(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
	 )

  (debug:print-info 4 "INNER COND: (or (procedure? items)(eq? items 'have-procedure))")
  (let* ((loop-list       (list hed tal reg reruns))
	 (prereqs-not-met (mt: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)
    ;; (thread-sleep! (+ 0.01 *global-delta*))
    (cond ;; INNER COND #2
     ((or (null? prereqs-not-met) ;; all prereqs met, fire off the test
	  ;; or, if it is a 'toplevel test and all prereqs not met are COMPLETED then launch

	  (and (eq? testmode 'toplevel)
	       (null? non-completed)))
      (debug:print-info 4 "INNER COND #2: (or (null? prereqs-not-met) (and (eq? testmode 'toplevel)(null? non-completed)))")
      (let ((test-name (tests:testqueue-get-testname test-record)))
	(setenv "MT_TEST_NAME" test-name) ;; 
	(setenv "MT_RUNNAME"   runname)
	(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)
		;; (thread-sleep! *global-delta*)
		(set! loop-list (list hed tal reg reruns)))
	      (begin
		(debug:print 0 "ERROR: The proc from reading the setup did not yield a list - please report this")
		(exit 1))))))

     ((null? fails)
      (debug:print-info 4 "fails is null, moving on in the queue but keeping " hed " for now")
      ;; num-retries code was here
      (set! loop-list (list (car newtal)(cdr newtal) reg reruns))) ;; an issue with prereqs not yet met?
     ((and (not (null? fails))(eq? testmode 'normal))
      (debug:print-info 1 "test "  hed " (mode=" testmode ") has failed prerequisite(s); "
			(string-intersperse (map (lambda (t)(conc (db:test-get-testname t) ":" (db:test-get-state t)"/"(db:test-get-status t))) fails) ", ")
			", removing it from to-do list")
      (if (or (not (null? reg))(not (null? tal)))
	  (begin
	    ;; (thread-sleep! *global-delta*)
	    (set! loop-list (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)
				  (cons hed reruns))))))

     (else
      (debug:print 4 "ERROR: No handler for this condition.")
      ;; TRY (thread-sleep! (+ 1 *global-delta*))
      (set! loop-list (list (car newtal)(cdr newtal) reg reruns)))) ;; END OF IF CAN RUN MORE
    loop-list))

(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)
  (let* ((run-limits-info         (runs:can-run-more-tests jobgroup max-concurrent-jobs)) ;; look at the test jobgroup and tot jobs running
	 ;; (open-run-close runs:can-run-more-tests #f 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))

				     (runs:queue-next-tal tal reg reglen regfull)
				     (runs:queue-next-reg tal reg reglen regfull)
				     (cons hed reruns))))
		  (begin
		    (debug:print 1 "WARN: Test not processed correctly. Could be a race condition in your test implementation? " 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?)
		    (set! loop-list (list hed tal reg reruns))))))))

    loop-list)) ;; END OF INNER COND

;; End of INNER COND for launchable test.


;; 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)

	 ;;    - 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)))

		  (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)
	  (debug:print 0 "ERROR: Should not have a list of items in a test and the itemspath set - please report this")
	  (exit 1))

# Set launchwait to yes to use the old launch run code that waits for the launch process to return before 
# proceeding.
# launchwait yes

# If set to "default" the old code is used. Otherwise defaults to 200 or uses
# numeric value given.
#
runqueue 2

# It is possible (but not recommended) to override the rsync command used
# to populate the test directories. For test development the following 
# example can be useful
#
# testcopycmd cp --remove-destination -rsv TEST_SRC_PATH/. TEST_TARG_PATH/. >> TEST_TARG_PATH/mt_launch.log 2>> TEST_TARG_PATH/mt_launch.log