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Differences From Artifact [ac922cdc40]:

To Artifact [5a6661b1a7]:


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(declare (unit portlogger))

;; lsof -i


(define (portlogger:open-db fname)

  (let* ((exists   (file-exists? fname))
	 (db       (sqlite3:open-database fname))
	 (handler  (make-busy-timeout 136000))
	 (canwrite (file-write-access? fname)))
    (sqlite3:set-busy-handler! db handler)
    (sqlite3:execute db "PRAGMA synchronous = 0;")
    (if (not exists)
	(sqlite3:execute 
	 db
	 "CREATE TABLE ports (
            port INTEGER PRIMARY KEY,
            state TEXT DEFAULT 'not-used',
            fail_count INTEGER DEFAULT 0,
            update_time TIMESTAMP DEFAULT (strftime('%s','now')) );"))
    db))

(define (portlogger:open-run-close proc . params)
  (let ((fname  (conc "/tmp/." (current-user-name) "-portlogger.db")))

    (handle-exceptions
     exn
     (begin
       (release-dot-lock fname)
       (debug:print 0 "ERROR: portlogger:open-run-close failed. " proc " " params)
       (debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
       (debug:print 0 "exn=" (condition->list exn))
       (print-call-chain))
     (let* ((lock   (obtain-dot-lock fname 2 9 10))
	    (db     (portlogger:open-db fname))
	    (res    (apply proc db params)))
       (sqlite3:finalize! db)
       (release-dot-lock fname)
       res))))

;; (fold-row PROC INIT DATABASE SQL . PARAMETERS) 
(define (portlogger:take-port db portnum)
  (let* ((qry1 (sqlite3:prepare db "INSERT INTO ports (port,state) VALUES (?,?);"))
	 (qry2 (sqlite3:prepare db "UPDATE ports SET state=?,update_time=strftime('%s','now') WHERE port=?;"))
	 (qry3 (sqlite3:prepare db "SELECT state FROM ports WHERE port=?;"))







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(declare (unit portlogger))

;; lsof -i


(define (portlogger:open-db fname)
  (let* ((avail    (tasks:wait-on-journal fname 10)) ;; wait up to about 10 seconds for the journal to go away
	 (exists   (file-exists? fname))
	 (db       (sqlite3:open-database fname))
	 (handler  (make-busy-timeout 136000))
	 (canwrite (file-write-access? fname)))
    (sqlite3:set-busy-handler! db handler)
    (sqlite3:execute db "PRAGMA synchronous = 0;")
    (if (not exists)
	(sqlite3:execute 
	 db
	 "CREATE TABLE ports (
            port INTEGER PRIMARY KEY,
            state TEXT DEFAULT 'not-used',
            fail_count INTEGER DEFAULT 0,
            update_time TIMESTAMP DEFAULT (strftime('%s','now')) );"))
    db))

(define (portlogger:open-run-close proc . params)
  (let* ((fname  (conc "/tmp/." (current-user-name) "-portlogger.db"))
	 (avail  (tasks:wait-on-journal fname 10))) ;; wait up to about 10 seconds for the journal to go away
    (handle-exceptions
     exn
     (begin
       ;; (release-dot-lock fname)
       (debug:print 0 "ERROR: portlogger:open-run-close failed. " proc " " params)
       (debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
       (debug:print 0 "exn=" (condition->list exn))
       (print-call-chain))
     (let* (;; (lock   (obtain-dot-lock fname 2 9 10))
	    (db     (portlogger:open-db fname))
	    (res    (apply proc db params)))
       (sqlite3:finalize! db)
       ;; (release-dot-lock fname)
       res))))

;; (fold-row PROC INIT DATABASE SQL . PARAMETERS) 
(define (portlogger:take-port db portnum)
  (let* ((qry1 (sqlite3:prepare db "INSERT INTO ports (port,state) VALUES (?,?);"))
	 (qry2 (sqlite3:prepare db "UPDATE ports SET state=?,update_time=strftime('%s','now') WHERE port=?;"))
	 (qry3 (sqlite3:prepare db "SELECT state FROM ports WHERE port=?;"))