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Differences From Artifact [6d7c6d5b15]:

To Artifact [55bac6f8a2]:


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  ;; this is one db per server
  (cachedb     #f)  ;; handle for the in memory copy
  (dbfile    #f)  ;; path to the db file on disk
  (dbfname   #f)  ;; short name of db file on disk (used to validate accessing correct db)
  (ondiskdb  #f)  ;; handle for the on-disk file
  (dbtmpname #f)  ;; path to db file in /tmp (non-imem method)
  (dbdat     #f)  ;; create a dbdat for the downstream calls such as db:with-db
  (last-update 0)
  (sync-proc #f)
  )

;; NOTE: Need one dbr:subdb per main.db, 1.db ...
;;
(defstruct dbr:subdb
  (dbname      #f) ;; .mtdb/1.db
  (mtdbfile    #f) ;; mtrah/.mtdb/1.db
  (mtdbdat     #f) ;; only need one of these for syncing
  ;; (dbdats      (make-hash-table))  ;; id => dbdat 
  (tmpdbfile   #f) ;; /tmp/.../.mtdb/1.db

  ;; (refndbfile  #f) ;; /tmp/.../.mtdb/1.db_ref
  (dbstack     (make-stack)) ;; stack for tmp dbr:dbdat,
  (homehost    #f) ;; not used yet
  (on-homehost #f) ;; not used yet
  (read-only   #f)
  (last-sync   0)
  (last-write  (current-seconds))







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  ;; this is one db per server
  (cachedb     #f)  ;; handle for the in memory copy
  (dbfile    #f)  ;; path to the db file on disk
  (dbfname   #f)  ;; short name of db file on disk (used to validate accessing correct db)
  (ondiskdb  #f)  ;; handle for the on-disk file
  (dbtmpname #f)  ;; path to db file in /tmp (non-imem method)
  (dbdat     #f)  ;; create a dbdat for the downstream calls such as db:with-db
grep   (last-update 0)  (sync-proc #f)

  )

;; NOTE: Need one dbr:subdb per main.db, 1.db ...
;;
(defstruct dbr:subdb
  (dbname      #f) ;; .mtdb/1.db
  (mtdbfile    #f) ;; mtrah/.mtdb/1.db
  (mtdbdat     #f) ;; only need one of these for syncing
  ;; (dbdats      (make-hash-table))  ;; id => dbdat 
  (tmpdbfile   #f) ;; /tmp/.../.mtdb/1.db
  (refndb      #f) ;; FIX THIS, IT SHOULD NOT BE REFERENCED!
  ;; (refndbfile  #f) ;; /tmp/.../.mtdb/1.db_ref
  (dbstack     (make-stack)) ;; stack for tmp dbr:dbdat,
  (homehost    #f) ;; not used yet
  (on-homehost #f) ;; not used yet
  (read-only   #f)
  (last-sync   0)
  (last-write  (current-seconds))
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;; (define *mutex-stmth-call* (make-mutex))
;; 
;; (define (db:with-mutex-for-stmth proc)
;;   (mutex-lock! *mutex-stmth-call*)
;;   (let* ((res (proc)))
;;     (mutex-unlock! *mutex-stmth-call*)
;;     res))









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;; (define *mutex-stmth-call* (make-mutex))
;; 
;; (define (db:with-mutex-for-stmth proc)
;;   (mutex-lock! *mutex-stmth-call*)
;;   (let* ((res (proc)))
;;     (mutex-unlock! *mutex-stmth-call*)
;;     res))
;;======================================================================
;; L O C K E R S   A N D   B L O C K E R S 
;;======================================================================

;; block further accesses to databases. Call this before shutting db down
(define (common:db-block-further-queries)
  (mutex-lock! *db-access-mutex*)
  (set! *db-access-allowed* #f)
  (mutex-unlock! *db-access-mutex*))

(define (common:db-access-allowed?)
  (let ((val (begin
	       (mutex-lock! *db-access-mutex*)
	       *db-access-allowed*
	       (mutex-unlock! *db-access-mutex*))))
    val))


)