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Comment:converted filedb:fdb from vec to defstruct
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Timelines: family | ancestors | descendants | both | inline-vec-to-defstruct
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SHA1: fb18a8da9e6c0adeb43160a94b441d12eaf39d9d
User & Date: bjbarcla on 2016-01-13 16:23:16
Other Links: branch diff | manifest | tags
Context
2016-01-29
08:58
re-refactor dbr:dbstruct check-in: 3becef064c user: mrwellan tags: re-refactor-vec2defstruct
2016-01-14
15:17
refactor-dbr:dbstruct check-in: 8bd82d02ff user: mrwellan tags: refactor-dbr:dbstruct
2016-01-13
16:23
converted filedb:fdb from vec to defstruct Closed-Leaf check-in: fb18a8da9e user: bjbarcla tags: inline-vec-to-defstruct
15:35
Added defstruct changes to megatest.scm check-in: 74dc16bf61 user: ritikaag tags: inline-vec-to-defstruct
Changes
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Modified fdb_records.scm from [bbb0371221] to [423ddbb678]. 

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;; Single record for managing a filedb
;; make-vector-record "Filedb record" filedb fdb db dbpath pathcache idcache partcache
;; Filedb record
(use defstruct)
(defstruct filedb:fdb db dbpath pathcache idcache partcache db! dbpath! pathcache! idcache! partcache!)

;; BB: following replaced by defstruct filedb:fdb --
(define (make-filedb:fdb)(make-vector 5))
(define-inline (filedb:fdb-get-db          vec)    (vector-ref  vec 0))
(define-inline (filedb:fdb-get-dbpath      vec)    (vector-ref  vec 1))
(define-inline (filedb:fdb-get-pathcache   vec)    (vector-ref  vec 2))
(define-inline (filedb:fdb-get-idcache     vec)    (vector-ref  vec 3))
(define-inline (filedb:fdb-get-partcache   vec)    (vector-ref  vec 4))
(define-inline (filedb:fdb-set-db!         vec val)(vector-set! vec 0 val))
(define-inline (filedb:fdb-set-dbpath!     vec val)(vector-set! vec 1 val))
(define-inline (filedb:fdb-set-pathcache!  vec val)(vector-set! vec 2 val))
(define-inline (filedb:fdb-set-idcache!    vec val)(vector-set! vec 3 val))
(define-inline (filedb:fdb-set-partcache!  vec val)(vector-set! vec 4 val))
;;(define (make-filedb:fdb)(make-vector 5))
;;(define-inline (filedb:fdb-get-db          vec)    (vector-ref  vec 0))
;;(define-inline (filedb:fdb-get-dbpath      vec)    (vector-ref  vec 1))
;;(define-inline (filedb:fdb-get-pathcache   vec)    (vector-ref  vec 2))
;;(define-inline (filedb:fdb-get-idcache     vec)    (vector-ref  vec 3))
;;(define-inline (filedb:fdb-get-partcache   vec)    (vector-ref  vec 4))
;;(define-inline (filedb:fdb-set-db!         vec val)(vector-set! vec 0 val))
;;(define-inline (filedb:fdb-set-dbpath!     vec val)(vector-set! vec 1 val))
;;(define-inline (filedb:fdb-set-pathcache!  vec val)(vector-set! vec 2 val))
;;(define-inline (filedb:fdb-set-idcache!    vec val)(vector-set! vec 3 val))
;;(define-inline (filedb:fdb-set-partcache!  vec val)(vector-set! vec 4 val))

;; BB: following is not used, commenting out --
;; children records, should have use something other than "child"
(define-inline (filedb:child-get-id vec)       (vector-ref vec 0))
(define-inline (filedb:child-get-path vec)     (vector-ref vec 1))
(define-inline (filedb:child-get-parent_id vec)(vector-ref vec 2))
;;; children records, should have use something other than "child"
;;(define-inline (filedb:child-get-id vec)       (vector-ref vec 0))
;;(define-inline (filedb:child-get-path vec)     (vector-ref vec 1))
;;(define-inline (filedb:child-get-parent_id vec)(vector-ref vec 2))

Modified filedb.scm from [91e90bcdc7] to [7542371360].

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(use sqlite3 srfi-1 posix regex srfi-69 srfi-13 posix-extras)
(import (prefix sqlite3 sqlite3:))

(declare (unit filedb))

(include "fdb_records.scm")
;; (include "settings.scm")

(define (filedb:open-db dbpath)
  (let* ((fdb      (make-filedb:fdb))
	 (dbexists (file-exists? dbpath))
	 (db (sqlite3:open-database dbpath)))
    (filedb:fdb-set-db!        fdb db)
    (filedb:fdb-set-dbpath!    fdb dbpath)
    (filedb:fdb-set-pathcache! fdb (make-hash-table))
    (filedb:fdb-set-idcache!   fdb (make-hash-table))
    (filedb:fdb-set-partcache! fdb (make-hash-table))
    (update-filedb:fdb fdb db: db)
    (update-filedb:fdb fdb dbpath: dbpath)
    (update-filedb:fdb fdb pathcache: (make-hash-table))
    (update-filedb:fdb fdb idcache: (make-hash-table))
    (update-filedb:fdb fdb partcache: (make-hash-table))
    (sqlite3:set-busy-handler!  db (make-busy-timeout 136000))
    (if (not dbexists)
	(begin
	  (sqlite3:execute db "PRAGMA synchronous = OFF;")
	  (sqlite3:execute db "CREATE TABLE names (id INTEGER PRIMARY KEY,name TEST);") ;; for future use - change path in paths table to path_id
	  (sqlite3:execute db "CREATE INDEX name_index ON names (name);")
	  ;; NB// We store a useful subset of file attributes but do not attempt to store all
	  (sqlite3:execute db "CREATE TABLE paths (id        INTEGER PRIMARY KEY,
                                                   path      TEXT,
                                                   parent_id INTEGER,
                                                   mode      INTEGER DEFAULT -1,
                                                   uid       INTEGER DEFAULT -1,
                                                   gid       INTEGER DEFAULT -1,
                                                   size      INTEGER DEFAULT -1,
                                                   mtime     INTEGER DEFAULT -1);")
	  (sqlite3:execute db "CREATE INDEX path_index ON paths (path,parent_id);")
	  (sqlite3:execute db "CREATE TABLE bases (id INTEGER PRIMARY KEY,base TEXT,                  updated TIMESTAMP);")))
    ;; close the sqlite3 db and open it as needed
    (filedb:finalize-db! fdb)
    (filedb:fdb-set-db! fdb #f)
    (update-filedb:fdb fdb db: #f)
    fdb))

(define (filedb:reopen-db fdb)
  (let ((db (sqlite3:open-database (filedb:fdb-get-dbpath fdb))))
    (filedb:fdb-set-db! fdb db)
  (let ((db (sqlite3:open-database (filedb:fdb-dbpath fdb))))
    (update-filedb:fdb fdb db: db)
    (sqlite3:set-busy-handler!  db (make-busy-timeout 136000))))
  
(define (filedb:finalize-db! fdb)
  (sqlite3:finalize! (filedb:fdb-get-db fdb)))
  (sqlite3:finalize! (filedb:fdb-db fdb)))

(define (filedb:get-current-time-string)
  (string-chomp (time->string (seconds->local-time (current-seconds)))))

(define (filedb:get-base-id db path)
  (let ((stmt   (sqlite3:prepare db "SELECT id FROM bases WHERE base=?;"))
        (id-num #f))
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(define (filedb:add-path db path parent)
  (let ((stmt (sqlite3:prepare db "INSERT INTO paths (path,parent_id) VALUES (?,?);")))
    (sqlite3:execute stmt path parent)
    (sqlite3:finalize! stmt)))

(define (filedb:register-path fdb path #!key (save-stat #f))
  (let* ((db        (filedb:fdb-get-db        fdb))
	 (pathcache (filedb:fdb-get-pathcache fdb))
  (let* ((db        (filedb:fdb-db        fdb))
	 (pathcache (filedb:fdb-pathcache fdb))
	 (stat      (if save-stat (file-stat path #t)))
	 (id        (hash-table-ref/default pathcache path #f)))
    (if (not db)(filedb:reopen-db fdb))
    (if id id 
        (let ((plist (string-split path "/")))
          (let loop ((head (car plist))
                     (tail (cdr plist))
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            (if (= (modulo lc 100) 0)
                (print "          " lc " files"))
            (loop (read-line p)(+ lc 1)))))))

(define (filedb:update fdb path #!key (save-stat #f))
  ;; first get the realpath and add it to the bases table
  (let ((real-path path) ;; (filedb:get-real-path path))
	(db        (filedb:fdb-get-db    fdb)))
	(db        (filedb:fdb-db    fdb)))
    (filedb:add-base db real-path)
    (filedb:update-recursively fdb path save-stat: save-stat)))

;; not used and broken
;;
(define (filedb:get-real-path path)
  (let* ((p (open-input-pipe (string-append real-path " " (regexp-escape path))))
         (pth (read-line p)))
    (if (eof-object? pth) path
	(begin
	  (close-input-port p)
	  pth))))

(define (filedb:drop-base fdb path)
  (print "Sorry, I don't do anything yet"))

(define (filedb:find-all fdb pattern action)
  (let* ((db     (filedb:fdb-get-db fdb))
  (let* ((db     (filedb:fdb-db fdb))
	 (stmt   (sqlite3:prepare db "SELECT id FROM paths WHERE path like ?;"))
	 (result '()))
    (sqlite3:for-each-row 
     (lambda (num)
       (action num)
       (set! result (cons num result))) stmt pattern)
    (sqlite3:finalize! stmt)
    result))

(define (filedb:get-path-record fdb id)
  (let* ((db        (filedb:fdb-get-db        fdb))
	 (partcache (filedb:fdb-get-partcache fdb))
  (let* ((db        (filedb:fdb-db        fdb))
	 (partcache (filedb:fdb-partcache fdb))
	 (dat (hash-table-ref/default partcache id #f)))
    (if dat dat
	(let ((stmt (sqlite3:prepare db "SELECT path,parent_id FROM paths WHERE id=?;"))
	      (result #f))
	  (sqlite3:for-each-row 
	   (lambda (path parent_id)(set! result (list path parent_id))) stmt id)
	  (hash-table-set! partcache id result)
	  (sqlite3:finalize! stmt)
	  result))))

(define (filedb:get-children fdb parent-id)
  (let* ((db        (filedb:fdb-get-db fdb))
  (let* ((db        (filedb:fdb-db fdb))
	 (res       '()))
    (sqlite3:for-each-row
     (lambda (id path parent-id)
       (set! res (cons (vector id path parent-id) res)))
     db "SELECT id,path,parent_id FROM paths WHERE parent_id=?;"
     parent-id)
    res))

;; retrieve all that have children and those without
;; children that match patt
(define (filedb:get-children-patt fdb parent-id search-patt)
  (let* ((db        (filedb:fdb-get-db fdb))
  (let* ((db        (filedb:fdb-db fdb))
	 (res       '()))
    ;; first get the children that have no children
    (sqlite3:for-each-row
     (lambda (id path parent-id)
       (set! res (cons (vector id path parent-id) res)))
     db "SELECT id,path,parent_id FROM paths WHERE parent_id=? AND 
            (id IN (SELECT parent_id FROM paths) OR path LIKE ?);"
     parent-id search-patt)
    res))

(define (filedb:get-path fdb id)
  (let* ((db      (filedb:fdb-get-db      fdb))
	 (idcache (filedb:fdb-get-idcache fdb))
  (let* ((db      (filedb:fdb-db      fdb))
	 (idcache (filedb:fdb-idcache fdb))
	 (path    (hash-table-ref/default idcache id #f)))
    (if (not db)(filedb:reopen-db fdb))
    (if path path
        (let loop ((curr-id id)
                   (path    ""))
          (let ((path-record (filedb:get-path-record fdb curr-id)))
            (if (not path-record) #f ;; this id has no path
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