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(dbr:dbstruct-dbfile-set! dbstruct dbfullname)
(dbr:dbstruct-dbtmpname-set! dbstruct tmpdb)
(dbr:dbstruct-dbfname-set! dbstruct dbfname)
(dbr:dbstruct-sync-proc-set! dbstruct
(lambda (last-update)
(if *sync-in-progress*
(debug:print 3 *default-log-port* "WARNING: overlapping calls to sync to disk")
(let* ((sync-cmd (conc "megatest -db2db -from "tmpdb" -to "dbfullname"&")))
;; (mutex-lock! *db-with-db-mutex*) ;; this mutex is used when overloaded or during a query that modifies the db
(set! *sync-in-progress* #t)
(thread-start! (make-thread
(lambda ()
(debug:print-info "Running "sync-cmd)
(system sync-cmd)
;; (mutex-unlock! *db-with-db-mutex*)
;; (thread-sleep! 0.5) ;; ensure at least 1/2 second down time between sync calls
(set! *sync-in-progress* #f))))
))))
;; (dbmod:sync-tables tables #f db inmem)
;; (if db
(dbmod:sync-gasket tables #f inmem db dbfullname 'fromdest keys) ;; ) ;; load into inmem
(dbr:dbstruct-last-update-set! dbstruct (current-seconds)) ;; should this be offset back in time by one second?
dbstruct))
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(dbr:dbstruct-dbfile-set! dbstruct dbfullname)
(dbr:dbstruct-dbtmpname-set! dbstruct tmpdb)
(dbr:dbstruct-dbfname-set! dbstruct dbfname)
(dbr:dbstruct-sync-proc-set! dbstruct
(lambda (last-update)
(if *sync-in-progress*
(debug:print 3 *default-log-port* "WARNING: overlapping calls to sync to disk")
(let* ((sync-cmd (conc "megatest -db2db -from "tmpdb" -to "dbfullname"&"))
(synclock-file (conc dbfullname".sync-lock")))
;; (mutex-lock! *db-with-db-mutex*) ;; this mutex is used when overloaded or during a query that modifies the db
;; (if (eq? (dbfile:cache-method) 'inmem)
;; (dbmod:sync-gasket tables last-update inmem db
;; dbfullname syncdir keys)
(if (file-exists? synclock-file)
(debug:print 0 *default-log-port* "Skipping sync, lockfile "synclock-file" found.")
(thread-start! (make-thread
(lambda ()
(set! *sync-in-progress* #t)
(debug:print-info "Running "sync-cmd)
(system sync-cmd)
;; (mutex-unlock! *db-with-db-mutex*)
;; (thread-sleep! 0.5) ;; ensure at least 1/2 second down time between sync calls
(set! *sync-in-progress* #f)))))
))))
;; (dbmod:sync-tables tables #f db inmem)
;; (if db
(dbmod:sync-gasket tables #f inmem db dbfullname 'fromdest keys) ;; ) ;; load into inmem
(dbr:dbstruct-last-update-set! dbstruct (current-seconds)) ;; should this be offset back in time by one second?
dbstruct))
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