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;; Copyright 2006-2014, Matthew Welland.
;;
;; This program is made available under the GNU GPL version 2.0 or
;; greater. See the accompanying file COPYING for details.
;;
;; This program is distributed WITHOUT ANY WARRANTY; without even the
;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;; PURPOSE.
(require-extension (srfi 18) extras tcp s11n)
(use sqlite3 srfi-1 posix srfi-69 hostinfo dot-locking z3)
(import (prefix sqlite3 sqlite3:))
(declare (unit portlogger))
(declare (uses db))
;; lsof -i
(exists (file-exists? fname))
(db (if avail
(sqlite3:open-database fname)
(begin
(system (conc "rm -f " fname))
(sqlite3:open-database fname))))
(handler (make-busy-timeout 136000))
(canwrite (file-write-access? fname)))
;; (db-init (lambda ()
;; (sqlite3:execute
;; db
;; "CREATE TABLE IF NOT EXISTS ports (
;; port INTEGER PRIMARY KEY,
;; state TEXT DEFAULT 'not-used',
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;; Copyright 2006-2014, Matthew Welland.
;;
;; This file is part of Megatest.
;;
;; Megatest is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; Megatest is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with Megatest. If not, see <http://www.gnu.org/licenses/>.
;;
(require-extension (srfi 18) extras tcp s11n)
(use sqlite3 srfi-1 posix srfi-69 hostinfo dot-locking z3)
(import (prefix sqlite3 sqlite3:))
(declare (unit portlogger))
(declare (uses db))
;; lsof -i
(define (portlogger:open-db fname)
(let* ((avail (tasks:wait-on-journal fname 5 remove: #t)) ;; wait up to about 10 seconds for the journal to go away
(exists (common:file-exists? fname))
(db (if avail
(sqlite3:open-database fname)
(begin
(system (conc "rm -f " fname))
(sqlite3:open-database fname))))
(handler (sqlite3:make-busy-timeout 136000))
(canwrite (file-write-access? fname)))
;; (db-init (lambda ()
;; (sqlite3:execute
;; db
;; "CREATE TABLE IF NOT EXISTS ports (
;; port INTEGER PRIMARY KEY,
;; state TEXT DEFAULT 'not-used',
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(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-error 0 *default-log-port* "portlogger:open-run-close failed. " proc " " params)
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 *default-log-port* "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)
res))))
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(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-error 0 *default-log-port* "portlogger:open-run-close failed. " proc " " params)
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 5 *default-log-port* "exn=" (condition->list exn))
(if (common: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)
res))))
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(sqlite3:finalize! qry1)
(sqlite3:finalize! qry2)
(sqlite3:finalize! qry3)
res))
(define (portlogger:get-prev-used-port db)
(handle-exceptions
exn
(begin
(debug:print 0 *default-log-port* "EXCEPTION: portlogger database probably overloaded or unreadable. If you see this message again remove /tmp/.$USER-portlogger.db")
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 *default-log-port* "exn=" (condition->list exn))
(print-call-chain (current-error-port))
(debug:print 0 *default-log-port* "Continuing anyway.")
#f)
(sqlite3:fold-row
(lambda (var curr)
(or curr var curr))
#f
db
"SELECT (port) FROM ports WHERE state='released' LIMIT 1;")))
(define (portlogger:find-port db)
(let* ((lowport (let ((val (configf:lookup *configdat* "server" "lowport")))
(if (and val
(string->number val))
(string->number val)
32768)))
(portnum (or (portlogger:get-prev-used-port db)
(+ lowport ;; top of registered ports is 49152 but lets use ports in the registered range
(random (- 64000 lowport))))))
(handle-exceptions
exn
(begin
(debug:print 0 *default-log-port* "EXCEPTION: portlogger database probably overloaded or unreadable. If you see this message again remove /tmp/.$USER-portlogger.db")
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 *default-log-port* "exn=" (condition->list exn))
(print-call-chain (current-error-port))
(debug:print 0 *default-log-port* "Continuing anyway."))
(portlogger:take-port db portnum))
portnum))
;; set port to "released", "failed" etc.
;;
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(sqlite3:finalize! qry1)
(sqlite3:finalize! qry2)
(sqlite3:finalize! qry3)
res))
(define (portlogger:get-prev-used-port db)
(handle-exceptions
exn
(begin
(debug:print 0 *default-log-port* "EXCEPTION: portlogger database probably overloaded or unreadable. If you see this message again remove /tmp/.$USER-portlogger.db")
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 5 *default-log-port* "exn=" (condition->list exn))
(print-call-chain (current-error-port))
(debug:print 0 *default-log-port* "Continuing anyway.")
#f)
(sqlite3:fold-row
(lambda (var curr)
(or curr var curr))
#f
db
"SELECT (port) FROM ports WHERE state='released' LIMIT 1;")))
(define (portlogger:find-port db)
(let* ((lowport (let ((val (configf:lookup *configdat* "server" "lowport")))
(if (and val
(string->number val))
(string->number val)
32768)))
(portnum (or (portlogger:get-prev-used-port db)
(+ lowport ;; top of registered ports is 49152 but lets use ports in the registered range
(random (- 64000 lowport))))))
(handle-exceptions
exn
(begin
(debug:print 0 *default-log-port* "EXCEPTION: portlogger database probably overloaded or unreadable. If you see this message again remove /tmp/.$USER-portlogger.db")
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 5 *default-log-port* "exn=" (condition->list exn))
(print-call-chain (current-error-port))
(debug:print 0 *default-log-port* "Continuing anyway."))
(portlogger:take-port db portnum))
portnum))
;; set port to "released", "failed" etc.
;;
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(numargs (length args))
(result
(handle-exceptions
exn
(begin
(debug:print 0 *default-log-port* "EXCEPTION: portlogger database at " dbfname " probably overloaded or unreadable. Try removing it.")
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(print "exn=" (condition->list exn))
(debug:print 0 *default-log-port* " 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))
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(numargs (length args))
(result
(handle-exceptions
exn
(begin
(debug:print 0 *default-log-port* "EXCEPTION: portlogger database at " dbfname " probably overloaded or unreadable. Try removing it.")
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 5 *default-log-port* "exn=" (condition->list exn))
(debug:print 0 *default-log-port* " 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))
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