Megatest

;; 
;;     You should have received a copy of the GNU General Public License
;;     along with Megatest.  If not, see <http://www.gnu.org/licenses/>.
;;
;;======================================================================

;; (use trace)
(use typed-records)

;; globals - modules that include this need these here
(define *verbosity-cache* (make-hash-table))
(define *verbosity* 0)
(define *default-log-port* (current-error-port))
(define *logging* #f)
(define *functions* (make-hash-table)) ;; symbol => fn
(define *toppath* #f)
(define *transport-type* 'http)

(define (exec-fn fn . params)
  (if (hash-table-exists? *functions* fn)
      (apply (hash-table-ref *functions* fn) params)
      #f))

(define (set-fn fn-name fn)
  (hash-table-set! *functions* fn-name fn))

(include "altdb.scm")


(defstruct remote
  (hh-dat            (exec-fn 'common:get-homehost)) ;; homehost record ( addr . hhflag )
  (server-url        (if *toppath* (exec-fn 'server:check-if-running *toppath*))) ;; (server:check-if-running *toppath*) #f))
  (last-server-check 0)  ;; last time we checked to see if the server was alive
  (conndat           #f)
  (transport         *transport-type*)
  (server-timeout    (exec-fn 'server:expiration-timeout))
  (force-server      #f)
  (ro-mode           #f)  
  (ro-mode-checked   #f) ;; flag that indicates we have checked for ro-mode
  (ulex:conn         #f) ;; ulex db conn is not exactly a db connector, more like a network connector 
  )


;; Some of these routines use:
;;
;;     http://www.cs.toronto.edu/~gfb/scheme/simple-macros.html
;;
;; Syntax for defining macros in a simple style similar to function definiton,
;;  when there is a single pattern for the argument list and there are no keywords.

    (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 verbose quiet) ;; verbose and quiet are #f or enabled
  (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))))
                  (verbose                2) ;; ((args:get-arg "-v")   2)
                  (quiet                  0) ;; ((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)

   ((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 dmode verbose quiet)
  (let ((debugstr (or dmode                           ;; (args:get-arg "-debug")
		      (get-environment-variable "MT_DEBUG_MODE"))))
    (set! *verbosity* (debug:calc-verbosity debugstr verbose quiet))
    (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 (or dmode                                            ;; (args:get-arg "-debug")
	    (not (get-environment-variable "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*
	      (exec-fn '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))

(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*
	      (exec-fn '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))))
		(exec-fn '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 ""))