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(declare (uses common))
(include "task_records.scm")
;;======================================================================
;; Tasks db
;;======================================================================
;; If file exists AND
;; file readable
;; ==> open it
;; If file exists AND
;; file NOT readable
;; ==> open in-mem version
;; If file NOT exists
;; ==> open in-mem version
;;
(define (tasks:open-db)
(let* ((linktree (configf:lookup *configdat* "setup" "linktree"))
(dbpath (conc linktree "/.db/monitor.db"))
(exists (file-exists? dbpath))
(write-access (file-write-access? dbpath))
(mdb (cond
((file-write-access? *toppath*)(sqlite3:open-database dbpath))
((file-read-access? dbpath) (sqlite3:open-database dbpath))
(else (sqlite3:open-database ":memory:")))) ;; (never-give-up-open-db dbpath))
(handler (make-busy-timeout 36000)))
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(declare (uses common))
(include "task_records.scm")
;;======================================================================
;; Tasks db
;;======================================================================
;; wait up to aprox n seconds for a journal to go away
;;
(define (tasks:wait-on-journal path n)
(let ((fullpath (conc path "-journal")))
(let loop ((journal-exists (file-exists? fullpath))
(count n)) ;; wait ten times ...
(if journal-exists
(if (> count 0)
#f
(begin
(thread-sleep! 1)
(loop (file-exists? fullpath)
(- count 1))))
#t))))
;; If file exists AND
;; file readable
;; ==> open it
;; If file exists AND
;; file NOT readable
;; ==> open in-mem version
;; If file NOT exists
;; ==> open in-mem version
;;
(define (tasks:open-db)
(let* ((linktree (configf:lookup *configdat* "setup" "linktree"))
(dbpath (conc linktree "/.db/monitor.db"))
(avail (tasks:wait-on-journal dbpath 10)) ;; wait up to about 10 seconds for the journal to go away
(exists (file-exists? dbpath))
(write-access (file-write-access? dbpath))
(mdb (cond
((file-write-access? *toppath*)(sqlite3:open-database dbpath))
((file-read-access? dbpath) (sqlite3:open-database dbpath))
(else (sqlite3:open-database ":memory:")))) ;; (never-give-up-open-db dbpath))
(handler (make-busy-timeout 36000)))
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