61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
+
-
-
-
-
-
-
-
+
|
;;======================================================================
;; Read-only inmem cached direct from disk method
;;======================================================================
(define *dbmod:nfs-db-handles* (make-hash-table)) ;; dbfname -> dbstruct
;; called in rmt.scm nfs-transport-handler
(define (dbmod:nfs-get-dbstruct run-id keys init-proc areapath)
(assert areapath "FATAL: dbmod:nfs-get-dbstruct called without areapath set.")
(let* ((dbfname (dbmod:run-id->dbfname run-id))
(dbstruct (hash-table-ref/default *dbmod:nfs-db-handles* dbfname #f)))
(if dbstruct
(let* ((last-update (dbr:dbstruct-last-update dbstruct))
(curr-secs (current-seconds)))
(if (> (- curr-secs last-update) 2)
(begin
((dbr:dbstruct-sync-proc dbstruct) last-update)
(dbr:dbstruct-last-update-set! dbstruct curr-secs)))
dbstruct)
|
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
-
+
+
|
(or (dbr:dbstruct-dbdat dbstruct)
(let* ((dbdat (make-dbr:dbdat
dbfile: (dbr:dbstruct-dbfile dbstruct)
dbh: (dbr:dbstruct-inmem dbstruct)
)))
(dbr:dbstruct-dbdat-set! dbstruct dbdat)
dbdat)))
(define (dbmod:need-on-disk-db-handle)
(case (dbfile:cache-method)
((none tmp) #t)
((inmem)
(case (dbfile:sync-method)
((original) #t)
((attach) #f)
(else
(debug:print 0 *default-log-port* "Unknown dbfile:sync-method setting: "
(dbfile:sync-method)))))
(else
(debug:print 0 *default-log-port* "Unknown dbfile:cache-method setting: "
(dbfile:cache-method))
#f)))
;; Open the inmem db and the on-disk db
;; populate the inmem db with data
;;
;; Updates fields in dbstruct
;; Returns dbstruct
;;
;; * This routine creates the db if not found
;; * Probably can get rid of the dbstruct-in
;;
(define (dbmod:open-dbmoddb areapath run-id dbfname-in init-proc keys
#!key (dbstruct-in #f)
(syncdir 'todisk))
(let* ((dbstruct (or dbstruct-in (make-dbr:dbstruct areapath: areapath)))
(dbfname (or dbfname-in (dbmod:run-id->dbfname run-id)))
(dbpath (dbmod:get-dbdir dbstruct)) ;; directory where all the .db files are kept
(dbfullname (conc dbpath"/"dbfname)) ;; (dbmod:run-id->full-dbfname dbstruct run-id))
(dbexists (file-exists? dbfullname))
(inmem (dbmod:open-inmem-db init-proc))
(write-access (file-write-access? dbpath))
(open-the-db (lambda ()
(db (dbfile:with-simple-file-lock
(conc dbfullname".lock")
(lambda ()
(let* ((db (sqlite3:open-database dbfullname))
(handler (sqlite3:make-busy-timeout 136000)))
(sqlite3:set-busy-handler! db handler)
(if write-access
(init-proc db))
db))))
(dbfile:with-simple-file-lock
(conc dbfullname".lock")
(lambda ()
(let* ((db (sqlite3:open-database dbfullname))
(handler (sqlite3:make-busy-timeout 136000)))
(sqlite3:set-busy-handler! db handler)
(if write-access
(init-proc db))
db)))))
(db (if (dbmod:need-on-disk-db-handle)
(open-the-db)
#f))
(tables (db:sync-all-tables-list keys)))
(dbr:dbstruct-inmem-set! dbstruct inmem)
(dbr:dbstruct-ondiskdb-set! dbstruct db)
(dbr:dbstruct-dbfile-set! dbstruct dbfullname)
(dbr:dbstruct-sync-proc-set! dbstruct
(lambda (last-update)
(if db
(sync-gasket tables last-update inmem db
dbfullname syncdir)))
(sync-gasket tables last-update inmem db
dbfullname syncdir))))
;; (dbmod:sync-tables tables #f db inmem)
(sync-gasket tables #f inmem db dbfullname 'fromdest)
(if db (sync-gasket tables #f inmem db dbfullname 'fromdest))
(dbr:dbstruct-last-update-set! dbstruct (current-seconds)) ;; should this be offset back in time by one second?
dbstruct))
;; (if (eq? syncdir 'todisk) ;; sync to disk normally, sync from in dashboard
;; (dbmod:sync-tables tables last-update inmem db)
;; (dbmod:sync-tables tables last-update db inmem))))
;; direction: 'fromdest 'todest
;;
(define (sync-gasket tables last-update inmem dbh dbfname direction)
(case (dbfile:sync-method)
((none) #f)
((attach)
(dbmod:attach-sync tables inmem dbfname direction))
(else
(case direction
((todest)
(dbmod:sync-tables tables last-update inmem dbh))
(else
|