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;;======================================================================
;;======================================================================
;; Database access
;;======================================================================
(require-extension (srfi 18) extras tcp)
(use sqlite3 srfi-1 posix regex regex-case srfi-69 csv-xml s11n md5 message-digest base64 format dot-locking z3)
(use sqlite3 srfi-1 posix regex regex-case srfi-69 csv-xml s11n
md5 message-digest base64 format dot-locking z3 defstruct)
(import (prefix sqlite3 sqlite3:))
(import (prefix base64 base64:))
(declare (unit db))
(declare (uses common))
(declare (uses keys))
(declare (uses ods))
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;; 'read read data
;;
(define (db:done-with dbstruct run-id mod-read)
(if (not (sqlite3:database? dbstruct))
(begin
(mutex-lock! *rundb-mutex*)
(if (eq? mod-read 'mod)
(dbr:dbstruct-set-mtime! dbstruct (current-milliseconds))
(dbr:dbstruct-set-rtime! dbstruct (current-milliseconds)))
(dbr:dbstruct-set-inuse! dbstruct #f)
(dbr:dbstruct-mtime-set! dbstruct (current-milliseconds))
(dbr:dbstruct-rtime-set! dbstruct (current-milliseconds)))
(dbr:dbstruct-inuse-set! dbstruct #f)
(mutex-unlock! *rundb-mutex*))))
;; (db:with-db dbstruct run-id sqlite3:exec "select blah from blaz;")
;; r/w is a flag to indicate if the db is modified by this query #t = yes, #f = no
;;
(define (db:with-db dbstruct run-id r/w proc . params)
(let* ((dbdat (if (vector? dbstruct)
(let* ((dbdat (if (dbr:dbstruct? dbstruct)
(db:get-db dbstruct run-id)
dbstruct)) ;; cheat, allow for passing in a dbdat
(db (db:dbdat-get-db dbdat)))
(db:delay-if-busy dbdat)
(handle-exceptions
exn
(begin
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(begin
(debug:print 2 "WARNING: opening db in non-writable dir " fname)
(sqlite3:open-database fname))))) ;; )
;; This routine creates the db. It is only called if the db is not already opened
;;
(define (db:open-rundb dbstruct run-id #!key (attemptnum 0)(do-not-open #f)) ;; (conc *toppath* "/megatest.db") (car *configinfo*)))
(let* ((local (dbr:dbstruct-get-local dbstruct))
(let* ((local (dbr:dbstruct-local dbstruct))
(rdb (if local
(dbr:dbstruct-get-localdb dbstruct run-id)
(dbr:dbstruct-get-inmem dbstruct)))) ;; (dbr:dbstruct-get-runrec dbstruct run-id 'inmem)))
(dbr:dbstruct-localdb-set! dbstruct run-id)
(dbr:dbstruct-inmem dbstruct)))) ;; (dbr:dbstruct-get-runrec dbstruct run-id 'inmem)))
(if (or rdb
do-not-open)
rdb
(begin
(mutex-lock! *rundb-mutex*)
(let* ((dbpath (db:dbfile-path run-id)) ;; (conc toppath "/db/" run-id ".db"))
(dbexists (file-exists? dbpath))
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(set! *megatest-db* db)
db)))
(write-access (file-write-access? dbpath))
;; (handler (make-busy-timeout 136000))
)
(if (and dbexists (not write-access))
(set! *db-write-access* #f)) ;; only unset so other db's also can use this control
(dbr:dbstruct-set-rundb! dbstruct (cons db dbpath))
(dbr:dbstruct-set-inuse! dbstruct #t)
(dbr:dbstruct-set-olddb! dbstruct olddb)
(dbr:dbstruct-rundb-set! dbstruct (cons db dbpath))
(dbr:dbstruct-inuse-set! dbstruct #t)
(dbr:dbstruct-olddb-set! dbstruct olddb)
;; (dbr:dbstruct-set-run-id! dbstruct run-id)
(mutex-unlock! *rundb-mutex*)
(if local
(begin
(dbr:dbstruct-set-localdb! dbstruct run-id db) ;; (dbr:dbstruct-set-inmem! dbstruct db) ;; direct access ...
(dbr:dbstruct-localdb-set! dbstruct run-id db) ;; (dbr:dbstruct-set-inmem! dbstruct db) ;; direct access ...
db)
(begin
(dbr:dbstruct-set-inmem! dbstruct inmem)
(dbr:dbstruct-inmem-set! dbstruct inmem)
;; dec 14, 2014 - keep deleted records available. hunch is that they are needed for id placeholders
;; (sqlite3:execute db "DELETE FROM tests WHERE state='DELETED';") ;; they just slow us down in this context
(db:sync-tables db:sync-tests-only db inmem)
(db:delay-if-busy refdb) ;; dbpath: (db:dbdat-get-path refdb)) ;; What does delaying here achieve?
(dbr:dbstruct-set-refdb! dbstruct refdb)
(dbr:dbstruct-refdb-set! dbstruct refdb)
(db:sync-tables db:sync-tests-only inmem refdb) ;; use inmem as the reference, don't read again from db
;; sync once more to deal with delays?
;; (db:sync-tables db:sync-tests-only db inmem)
;; (db:sync-tables db:sync-tests-only inmem refdb)
inmem)))))))
;; This routine creates the db. It is only called if the db is not already ls opened
;;
(define (db:open-main dbstruct) ;; (conc *toppath* "/megatest.db") (car *configinfo*)))
(let ((mdb (dbr:dbstruct-get-main dbstruct)))
(let ((mdb (dbr:dbstruct-main dbstruct)))
(if mdb
mdb
(begin
(mutex-lock! *rundb-mutex*)
(let* ((dbpath (db:dbfile-path 0))
(dbexists (file-exists? dbpath))
(db (db:lock-create-open dbpath db:initialize-main-db))
(olddb (db:open-megatest-db))
(write-access (file-write-access? dbpath))
(dbdat (cons db dbpath)))
(if (and dbexists (not write-access))
(set! *db-write-access* #f))
(dbr:dbstruct-set-main! dbstruct dbdat)
(dbr:dbstruct-set-olddb! dbstruct olddb) ;; olddb is already a (cons db path)
(dbr:dbstruct-main-set! dbstruct dbdat)
(dbr:dbstruct-olddb-set! dbstruct olddb) ;; olddb is already a (cons db path)
(mutex-unlock! *rundb-mutex*)
(if (and (not dbexists)
*db-write-access*) ;; did not have a prior db and do have write access
(db:multi-db-sync #f 'old2new)) ;; migrate data from megatest.db automatically
dbdat)))))
;; Make the dbstruct, setup up auxillary db's and call for main db at least once
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(if (and dbexists (not write-access))
(set! *db-write-access* #f))
(cons db dbpath)))
;; sync run to disk if touched
;;
(define (db:sync-touched dbstruct run-id #!key (force-sync #f))
(let ((mtime (dbr:dbstruct-get-mtime dbstruct))
(stime (dbr:dbstruct-get-stime dbstruct))
(rundb (dbr:dbstruct-get-rundb dbstruct))
(inmem (dbr:dbstruct-get-inmem dbstruct))
(maindb (dbr:dbstruct-get-main dbstruct))
(refdb (dbr:dbstruct-get-refdb dbstruct))
(olddb (dbr:dbstruct-get-olddb dbstruct))
(let ((mtime (dbr:dbstruct-mtime dbstruct))
(stime (dbr:dbstruct-stime dbstruct))
(rundb (dbr:dbstruct-rundb dbstruct))
(inmem (dbr:dbstruct-inmem dbstruct))
(maindb (dbr:dbstruct-main dbstruct))
(refdb (dbr:dbstruct-refdb dbstruct))
(olddb (dbr:dbstruct-olddb dbstruct))
;; (runid (dbr:dbstruct-get-run-id dbstruct))
)
(debug:print-info 4 "Syncing for run-id: " run-id)
;; (mutex-lock! *http-mutex*)
(if (eq? run-id 0)
;; runid equal to 0 is main.db
(if maindb
(if (or (not (number? mtime))
(not (number? stime))
(> mtime stime)
force-sync)
(begin
(db:delay-if-busy maindb)
(db:delay-if-busy olddb)
(let ((num-synced (db:sync-tables (db:sync-main-list maindb) maindb olddb)))
(dbr:dbstruct-set-stime! dbstruct (current-milliseconds))
(dbr:dbstruct-stime-set! dbstruct (current-milliseconds))
num-synced)
0))
(begin
;; this can occur when using local access (i.e. not in a server)
;; need a flag to turn it off.
;;
(debug:print 3 "WARNING: call to sync main.db to megatest.db but main not initialized")
0))
;; any other runid is a run
(if (or (not (number? mtime))
(not (number? stime))
(> mtime stime)
force-sync)
(begin
(db:delay-if-busy rundb)
(db:delay-if-busy olddb)
(dbr:dbstruct-set-stime! dbstruct (current-milliseconds))
(dbr:dbstruct-stime-set! dbstruct (current-milliseconds))
(let ((num-synced (db:sync-tables db:sync-tests-only inmem refdb rundb olddb)))
;; (mutex-unlock! *http-mutex*)
num-synced)
(begin
;; (mutex-unlock! *http-mutex*)
0))))))
(define (db:close-main dbstruct)
(let ((maindb (dbr:dbstruct-get-main dbstruct)))
(let ((maindb (dbr:dbstruct-main dbstruct)))
(if maindb
(begin
(sqlite3:finalize! (db:dbdat-get-db maindb))
(dbr:dbstruct-set-main! dbstruct #f)))))
(dbr:dbstruct-main-set! dbstruct #f)))))
(define (db:close-run-db dbstruct run-id)
(let ((rdb (db:open-rundb dbstruct run-id do-not-open: #t)))
(if (and rdb
(sqlite3:database? rdb))
(begin
(sqlite3:finalize! rdb)
(dbr:dbstruct-set-localdb! dbstruct run-id #f)
(dbr:dbstruct-set-inmem! dbstruct #f)))))
(dbr:dbstruct-localdb-set! dbstruct run-id #f)
(dbr:dbstruct-inmem-set! dbstruct #f)))))
;; close all opened run-id dbs
(define (db:close-all dbstruct)
;; finalize main.db
(db:sync-touched dbstruct 0 force-sync: #t)
;;(common:db-block-further-queries)
;; (mutex-lock! *db-sync-mutex*) ;; with this perhaps it isn't necessary to use the block-further-queries mechanism?
(db:close-main dbstruct)
(let ((locdbs (dbr:dbstruct-get-locdbs dbstruct)))
(let ((locdbs (dbr:dbstruct-locdbs dbstruct)))
(if (hash-table? locdbs)
(for-each (lambda (run-id)
(db:close-run-db dbstruct run-id))
(hash-table-keys locdbs))))
;; (let* ((local (dbr:dbstruct-get-local dbstruct))
;; (rundb (db:dbdat-get-db (dbr:dbstruct-get-rundb dbstruct))))
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