Megatest

    (mutex-unlock! mtx)
    res))

;; this was cached based on results from profiling but it turned out the profiling
;; somehow went wrong - perhaps too many processes writing to it. Leaving the caching
;; in for now but can probably take it out later.
;;
;; (define (debug:calc-verbosity vstr)
;;   (or (hash-table-ref/default *verbosity-cache* vstr #f)
;;       (let ((res (cond
;;                   ((number? vstr) vstr)
;;                   ((not (string?  vstr))   1)
;;                   ;; ((string-match  "^\\s*$" vstr) 1)
;;                   (vstr           (let ((debugvals  (filter number? (map string->number (string-split vstr ",")))))
;;                                     (cond
;;                                      ((> (length debugvals) 1) debugvals)
;;                                      ((> (length debugvals) 0)(car debugvals))
;;                                      (else 1))))
;;                   ((args:get-arg "-v")   2)
;;                   ((args:get-arg "-q")    0)
;;                   (else                   1))))
;;         (hash-table-set! *verbosity-cache* vstr res)
;;         res)))

;; ;; check verbosity, #t is ok
;; (define (debug:check-verbosity verbosity vstr)
;;   (if (not (or (number? verbosity)
;; 	       (list?   verbosity)))
;;       (begin
;; 	(print "ERROR: Invalid debug value \"" vstr "\"")
;; 	#f)
;;       #t))
;; 
;; (define (debug:debug-mode n)
;;   (cond
;;    ((and (number? *verbosity*)   ;; number number
;; 	 (number? n))
;;     (<= n *verbosity*))
;;    ((and (list? *verbosity*)     ;; list   number
;; 	 (number? n))
;;     (member n *verbosity*))
;;    ((and (list? *verbosity*)     ;; list   list
;; 	 (list? n))
;;     (not (null? (lset-intersection! eq? *verbosity* n))))
;;    ((and (number? *verbosity*)
;; 	 (list? n))
;;     (member *verbosity* n))))
;; 
;; (define (debug:setup)
;;   (let ((debugstr (or (args:get-arg "-debug")
;; 		      (args:get-arg "-debug-noprop")
;; 		      (getenv "MT_DEBUG_MODE"))))
;;     (set! *verbosity* (debug:calc-verbosity debugstr))
;;     (debug:check-verbosity *verbosity* debugstr)
;;     ;; if we were handed a bad verbosity rule then we will override it with 1 and continue
;;     (if (not *verbosity*)(set! *verbosity* 1))
;;     (if (and (not (args:get-arg "-debug-noprop"))
;; 	     (or (args:get-arg "-debug")
;; 		 (not (getenv "MT_DEBUG_MODE"))))
;; 	(setenv "MT_DEBUG_MODE" (if (list? *verbosity*)
;; 				    (string-intersperse (map conc *verbosity*) ",")
;; 				    (conc *verbosity*))))))
;;   
;; (define (debug:print n e . params)
;;   (if (debug:debug-mode n)
;;       (with-output-to-port (or e (current-error-port))
;; 	(lambda ()
;; 	  (if *logging*
;; 	      (db:log-event (apply conc params))
;; 	      (apply print params)
;; 	      )))))

;; Brandon's debug printer shortcut (indulge me :)
;; (define *BB-process-starttime* (current-milliseconds))
;; (define (BB> . in-args)
;;   (let* ((stack (get-call-chain))
;;          (location "??"))
;;     (for-each
;;      (lambda (frame)
;;        (let* ((this-loc (vector-ref frame 0))
;;               (temp     (string-split (->string this-loc) " "))
;;               (this-func (if (and (list? temp) (> (length temp) 1)) (cadr temp) "???")))
;;          (if (equal? this-func "BB>")
;;              (set! location this-loc))))
;;      stack)
;;     (let* ((color-on "\x1b[1m")
;;            (color-off "\x1b[0m")
;;            (dp-args
;;             (append
;;              (list 0 *default-log-port*
;;                    (conc color-on location "@"(/ (- (current-milliseconds) *BB-process-starttime*) 1000) color-off "   ")  )
;;              in-args)))
;;       (apply debug:print dp-args))))
;; 
;; (define *BBpp_custom_expanders_list* (make-hash-table))
;; 
;; 
;; 
;; ;; register hash tables with BBpp.
;; (hash-table-set! *BBpp_custom_expanders_list* HASH_TABLE:
;;                  (cons hash-table? hash-table->alist))
;; 
;; ;; test name converter
;; (define (BBpp_custom_converter arg)
;;   (let ((res #f))
;;     (for-each
;;      (lambda (custom-type-name)
;;        (let* ((custom-type-info      (hash-table-ref *BBpp_custom_expanders_list* custom-type-name))
;;               (custom-type-test      (car custom-type-info))
;;               (custom-type-converter (cdr custom-type-info)))
;;          (when (and (not res) (custom-type-test arg))
;;            (set! res (custom-type-converter arg)))))
;;      (hash-table-keys *BBpp_custom_expanders_list*))
;;     (if res (BBpp_ res) arg)))
;; 
;; (define (BBpp_ arg)
;;   (cond
;;    ;;((SOMESTRUCT? arg) (cons SOMESTRUCT: (SOMESTRUCT->alist arg)))
;;    ;;((dboard:tabdat? arg) (cons dboard:tabdat: (dboard:tabdat->alist arg)))
;;    ((hash-table? arg)
;;     (let ((al (hash-table->alist arg)))
;;       (BBpp_ (cons HASH_TABLE: al))))
;;    ((null? arg) '())
;;    ;;((list? arg) (cons (BBpp_ (car arg)) (BBpp_ (cdr arg))))
;;    ((pair? arg) (cons (BBpp_ (car arg)) (BBpp_ (cdr arg))))
;;    (else (BBpp_custom_converter arg))))
;; 
;; ;; Brandon's pretty printer.  It expands hashes and custom types in addition to regular pp
;; (define (BBpp arg)
;;   (pp (BBpp_ arg)))

;(use define-macro)
(define-syntax inspect
  (syntax-rules ()
    [(_ x)
    ;; (with-output-to-port (current-error-port)
       (printf "~a is: ~a\n" 'x (with-output-to-string (lambda () (BBpp x))))
     ;;  )
     ]
    [(_ x y ...) (begin (inspect x) (inspect y ...))]))

;; (define (debug:print-error n e . params)
;;   ;; normal print
;;   (if (debug:debug-mode n)
;;       (with-output-to-port (if (port? e) e (current-error-port))
;; 	(lambda ()
;; 	  (if *logging*
;; 	      (db:log-event (apply conc params))
;; 	      ;; (apply print "pid:" (current-process-id) " " params)
;; 	      (apply print "ERROR: " params)
;; 	      ))))
;;   ;; pass important messages to stderr
;;   (if (and (eq? n 0)(not (eq? e (current-error-port)))) 
;;       (with-output-to-port (current-error-port)
;; 	(lambda ()
;; 	  (apply print "ERROR: " params)
;; 	  ))))
;; 
;; (define (debug:print-info n e . params)
;;   (if (debug:debug-mode n)
;;       (with-output-to-port (if (port? e) e (current-error-port))
;; 	(lambda ()
;; 	  (if *logging*
;; 	      (let ((res (format#format #f "INFO: (~a) ~a" n (apply conc params))))
;; 		(db:log-event res))
;; 	      ;; (apply print "pid:" (current-process-id) " " "INFO: (" n ") " params) ;; res)
;; 	      (apply print "INFO: (" n ") " params) ;; res)
;; 	      )))))
;; 


;; if a value is printable (i.e. string or number) return the value
;; else return an empty string
(define-inline (printable val)
  (if (or (number? val)(string? val)) val ""))