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(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))
(if (file-exists? fname)(delete-file fname)) ;; brutally get rid of it
(print-call-chain (current-error-port)))
(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)
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(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 #f "ERROR: portlogger:open-run-close failed. " proc " " params)
(debug:print 0 #f " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 #f "exn=" (condition->list exn))
(if (file-exists? fname)(delete-file fname)) ;; brutally get rid of it
(print-call-chain (current-error-port)))
(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)
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(sqlite3:finalize! qry3)
res))
(define (portlogger:get-prev-used-port db)
(handle-exceptions
exn
(begin
(debug:print 0 "EXCEPTION: portlogger database probably overloaded or unreadable. If you see this message again remove /tmp/.$USER-portlogger.db")
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 "exn=" (condition->list exn))
(print-call-chain (current-error-port))
(debug:print 0 "Continuing anyway.")
#f)
(sqlite3:fold-row
(lambda (var curr)
(or curr var curr))
#f
db
"SELECT (port) FROM ports WHERE state='released' LIMIT 1;")))
(define (portlogger:find-port db)
(let* ((lowport (let ((val (configf:lookup *configdat* "server" "lowport")))
(if (and val
(string->number val))
(string->number val)
32768)))
(portnum (or (portlogger:get-prev-used-port db)
(+ lowport ;; top of registered ports is 49152 but lets use ports in the registered range
(random (- 64000 lowport))))))
(handle-exceptions
exn
(begin
(debug:print 0 "EXCEPTION: portlogger database probably overloaded or unreadable. If you see this message again remove /tmp/.$USER-portlogger.db")
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 "exn=" (condition->list exn))
(print-call-chain (current-error-port))
(debug:print 0 "Continuing anyway."))
(portlogger:take-port db portnum))
portnum))
;; set port to "released", "failed" etc.
;;
(define (portlogger:set-port db portnum value)
(sqlite3:execute db "UPDATE ports SET state=?,update_time=strftime('%s','now') WHERE port=?;" value portnum))
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(sqlite3:finalize! qry3)
res))
(define (portlogger:get-prev-used-port db)
(handle-exceptions
exn
(begin
(debug:print 0 #f "EXCEPTION: portlogger database probably overloaded or unreadable. If you see this message again remove /tmp/.$USER-portlogger.db")
(debug:print 0 #f " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 #f "exn=" (condition->list exn))
(print-call-chain (current-error-port))
(debug:print 0 #f "Continuing anyway.")
#f)
(sqlite3:fold-row
(lambda (var curr)
(or curr var curr))
#f
db
"SELECT (port) FROM ports WHERE state='released' LIMIT 1;")))
(define (portlogger:find-port db)
(let* ((lowport (let ((val (configf:lookup *configdat* "server" "lowport")))
(if (and val
(string->number val))
(string->number val)
32768)))
(portnum (or (portlogger:get-prev-used-port db)
(+ lowport ;; top of registered ports is 49152 but lets use ports in the registered range
(random (- 64000 lowport))))))
(handle-exceptions
exn
(begin
(debug:print 0 #f "EXCEPTION: portlogger database probably overloaded or unreadable. If you see this message again remove /tmp/.$USER-portlogger.db")
(debug:print 0 #f " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 #f "exn=" (condition->list exn))
(print-call-chain (current-error-port))
(debug:print 0 #f "Continuing anyway."))
(portlogger:take-port db portnum))
portnum))
;; set port to "released", "failed" etc.
;;
(define (portlogger:set-port db portnum value)
(sqlite3:execute db "UPDATE ports SET state=?,update_time=strftime('%s','now') WHERE port=?;" value portnum))
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(let* ((dbfname (conc "/tmp/." (current-user-name) "-portlogger.db"))
(db (portlogger:open-db dbfname))
(numargs (length args))
(result
(handle-exceptions
exn
(begin
(debug:print 0 "EXCEPTION: portlogger database at " dbfname " probably overloaded or unreadable. Try removing it.")
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(print "exn=" (condition->list exn))
(debug:print 0 " status: " ((condition-property-accessor 'sqlite3 'status) exn))
(print-call-chain (current-error-port))
#f)
(case (string->symbol (car args)) ;; commands with two or more params
((take)(portlogger:take-port db (string->number (cadr args))))
((find)(portlogger:find-port db))
((set) (let ((port (cadr args))
(state (caddr args)))
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(let* ((dbfname (conc "/tmp/." (current-user-name) "-portlogger.db"))
(db (portlogger:open-db dbfname))
(numargs (length args))
(result
(handle-exceptions
exn
(begin
(debug:print 0 #f "EXCEPTION: portlogger database at " dbfname " probably overloaded or unreadable. Try removing it.")
(debug:print 0 #f " message: " ((condition-property-accessor 'exn 'message) exn))
(print "exn=" (condition->list exn))
(debug:print 0 #f " status: " ((condition-property-accessor 'sqlite3 'status) exn))
(print-call-chain (current-error-port))
#f)
(case (string->symbol (car args)) ;; commands with two or more params
((take)(portlogger:take-port db (string->number (cadr args))))
((find)(portlogger:find-port db))
((set) (let ((port (cadr args))
(state (caddr args)))
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