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;; returns number if string->number is successful, string otherwise
;; also updates *global-delta*
;;
;; Operates on megatestdb
;;
(define (db:get-var dbstruct var)
(let* ((start-ms (current-milliseconds))
(throttle (let ((t (config-lookup *configdat* "setup" "throttle")))
(if t (string->number t) t)))
(res #f)
(db:delay-if-busy dbdat)
(sqlite3:for-each-row
(lambda (val)
(set! res val))
db
"SELECT val FROM metadat WHERE var=?;" var)
;; convert to number if can
(if (string? res)
(let ((valnum (string->number res)))
(if valnum (set! res valnum))))
;; scale by 10, average with current value.
(set! *global-delta* (/ (+ *global-delta* (* (- (current-milliseconds) start-ms)
(if throttle throttle 0.01)))
2))
(if (> (abs (- *last-global-delta-printed* *global-delta*)) 0.08) ;; don't print all the time, only if it changes a bit
(begin
(debug:print-info 4 "launch throttle factor=" *global-delta*)
(set! *last-global-delta-printed* *global-delta*)))
res))
(define (db:set-var dbstruct var val)
(let ((dbdat (db:get-db dbstruct #f))
(db (db:dbdat-get-db dbdat)))
(db:delay-if-busy dbdat)
(sqlite3:execute db "INSERT OR REPLACE INTO metadat (var,val) VALUES (?,?);" var val)))
(define (db:del-var dbstruct var)
;; (db:delay-if-busy)
(db:with-db dbstruct #f #t
(lambda (db)
(sqlite3:execute db "DELETE FROM metadat WHERE var=?;" var))))
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;; returns number if string->number is successful, string otherwise
;; also updates *global-delta*
;;
;; Operates on megatestdb
;;
(define (db:get-var dbstruct var)
(let* ((res #f)
(dbdat (db:get-db dbstruct #f))
(db (db:dbdat-get-db dbdat)))
;; (db:delay-if-busy dbdat)
(sqlite3:for-each-row
(lambda (val)
(set! res val))
db
"SELECT val FROM metadat WHERE var=?;" var)
;; convert to number if can
(if (string? res)
(let ((valnum (string->number res)))
(if valnum (set! res valnum))))
;; scale by 10, average with current value.
;; (set! *global-delta* (/ (+ *global-delta* (* (- (current-milliseconds) start-ms)
;; (if throttle throttle 0.01)))
;; 2))
;; (if (> (abs (- *last-global-delta-printed* *global-delta*)) 0.08) ;; don't print all the time, only if it changes a bit
;; (begin
;; (debug:print-info 4 "launch throttle factor=" *global-delta*)
;; (set! *last-global-delta-printed* *global-delta*)))
res))
(define (db:set-var dbstruct var val)
(let* ((dbdat (db:get-db dbstruct #f))
(db (db:dbdat-get-db dbdat)))
(sqlite3:execute db "INSERT OR REPLACE INTO metadat (var,val) VALUES (?,?);" var val)))
(define (db:del-var dbstruct var)
;; (db:delay-if-busy)
(db:with-db dbstruct #f #t
(lambda (db)
(sqlite3:execute db "DELETE FROM metadat WHERE var=?;" var))))
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