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db
(lambda ()
;; (fold-row (lambda (var curr) (or var curr)) #f db "SELECT var FROM foo WHERE id=100;")
(let* ((curr #f)
(res #f))
(set! curr (sqlite3:fold-row
(lambda (var curr)
(or var curr))
(or curr var curr))
"not-tried"
qry3
portnum))
(print "curr=" curr)
;; (print "curr=" curr)
(set! res (case (string->symbol curr)
((released) (sqlite3:execute qry2 "taken" portnum) 'taken)
((not-tried) (sqlite3:execute qry1 portnum "taken") 'taken)
((taken) 'already-taken)
((failed) 'failed)
(else 'error)))
(print "res=" res)
;; (print "res=" res)
res)))))
(sqlite3:finalize! qry1)
(sqlite3:finalize! qry2)
(sqlite3:finalize! qry3)
res))
;; set port to "released", "failed" etc.
;;
(define (portlogger:set-port db portnum value)
(sqlite3:execute db "UPDATE ports SET state=? WHERE portnum=?;" value portnum))
(sqlite3:execute db "UPDATE ports SET state=? WHERE port=?;" value portnum))
;; set port to failed (attempted to take but got error)
;;
(define (portlogger:set-failed db portnum)
(sqlite3:execute db "UPDATE ports SET state='failed',fail_count=fail_count+1 WHERE port=?;" portnum))
;;======================================================================
;; MAIN
;;======================================================================
(define (portlogger:main . args)
(let* ((db (portlogger:open-db (conc "/tmp/." (current-user-name))))
(let* ((db (portlogger:open-db (conc "/tmp/." (current-user-name))))
(args (cdr (argv)))
(numargs (length args)))
(cond
((> numargs 1) ;; most commands
(case (string->symbol (car args)) ;; commands with two or more params
((take)(portlogger:take-port db (string->number (cadr args))))
((set) (portlogger:set-port db
(string->number (cadr args))
(caddr args))))))
(sqlite3:finalize! db))
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