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#t)))))))
(sqlite3:finalize! lckqry)
(sqlite3:finalize! mklckqry)
result)))
(define (lock-queue:release-lock fname test-id #!key (count 10))
(let* ((dbdat (lock-queue:open-db fname)))
(handle-exceptions
exn
(begin
(debug:print 0 "WARNING: Failed to release queue lock. Will try again in few seconds")
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(thread-sleep! (/ count 10))
(if (> count 0)
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#t)))))))
(sqlite3:finalize! lckqry)
(sqlite3:finalize! mklckqry)
result)))
(define (lock-queue:release-lock fname test-id #!key (count 10))
(let* ((dbdat (lock-queue:open-db fname)))
(tasks:wait-on-journal (lock-queue:db-dat-get-path dbdat) 1200 "lock-queue:release-lock; waiting on journal")
(handle-exceptions
exn
(begin
(debug:print 0 "WARNING: Failed to release queue lock. Will try again in few seconds")
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(thread-sleep! (/ count 10))
(if (> count 0)
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(define (lock-queue:steal-lock dbdat test-id #!key (count 10))
(debug:print-info 0 "Attempting to steal lock at " (lock-queue:db-dat-get-path dbdat))
(tasks:wait-on-journal (lock-queue:db-dat-get-path dbdat) 1200 "lock-queue:steal-lock; waiting on journal")
(handle-exceptions
exn
(begin
(debug:print 0 "WARNING: Failed to steal queue lock. Will try again in few seconds")
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(thread-sleep! 10)
(if (> count 0)
(lock-queue:steal-lock dbdat test-id count: (- count 1))
#f))
(sqlite3:execute (lock-queue:db-dat-get-db dbdat) "DELETE FROM runlocks WHERE run_lock='locked';"))
(lock-queue:get-lock dbdat test-it))
;; returns #f if ok to skip the task
;; returns #t if ok to proceed with task
;; otherwise waits
;;
(define (lock-queue:wait-turn fname test-id #!key (count 10)(waiting-msg #f))
(let* ((dbdat (lock-queue:open-db fname))
(mystart (current-seconds))
(db (lock-queue:db-dat-get-db dbdat)))
(handle-exceptions
exn
(begin
(debug:print 0 "WARNING: Failed to find out if it is ok to skip the wait queue. Will try again in few seconds")
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(print-call-chain (current-error-port))
(thread-sleep! 10)
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(define (lock-queue:steal-lock dbdat test-id #!key (count 10))
(debug:print-info 0 "Attempting to steal lock at " (lock-queue:db-dat-get-path dbdat))
(tasks:wait-on-journal (lock-queue:db-dat-get-path dbdat) 1200 "lock-queue:steal-lock; waiting on journal")
(handle-exceptions
exn
(begin
(tadebug:print 0 "WARNING: Failed to steal queue lock. Will try again in few seconds")
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(thread-sleep! 10)
(if (> count 0)
(lock-queue:steal-lock dbdat test-id count: (- count 1))
#f))
(sqlite3:execute (lock-queue:db-dat-get-db dbdat) "DELETE FROM runlocks WHERE run_lock='locked';"))
(lock-queue:get-lock dbdat test-it))
;; returns #f if ok to skip the task
;; returns #t if ok to proceed with task
;; otherwise waits
;;
(define (lock-queue:wait-turn fname test-id #!key (count 10)(waiting-msg #f))
(let* ((dbdat (lock-queue:open-db fname))
(mystart (current-seconds))
(db (lock-queue:db-dat-get-db dbdat)))
(tasks:wait-on-journal (lock-queue:db-dat-get-path dbdat) 1200 waiting-msg: "lock-queue:wait-turn; waiting on journal file")
(handle-exceptions
exn
(begin
(debug:print 0 "WARNING: Failed to find out if it is ok to skip the wait queue. Will try again in few seconds")
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(print-call-chain (current-error-port))
(thread-sleep! 10)
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