# Wendelin.bigfile | common ZODB-related helpers
# Copyright (C) 2014-2015  Nexedi SA and Contributors.
#                          Kirill Smelkov <kirr@nexedi.com>
#
# This program is free software: you can Use, Study, Modify and Redistribute
# it under the terms of the GNU General Public License version 3, or (at your
# option) any later version, as published by the Free Software Foundation.
#
# You can also Link and Combine this program with other software covered by
# the terms of any of the Open Source Initiative approved licenses and Convey
# the resulting work. Corresponding source of such a combination shall include
# the source code for all other software used.
#
# This program is distributed WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# See COPYING file for full licensing terms.

from ZODB.FileStorage import FileStorage
from ZODB import DB


# open stor/db/connection and return root obj
def dbopen(path):
    stor = FileStorage(path)
    db   = DB(stor)
    conn = db.open()
    root = conn.root()
    return root


# close db/connection/storage identified by root obj
def dbclose(root):
    conn = root._p_jar
    db   = conn.db()
    stor = db.storage

    conn.close()
    db.close()
    stor.close()