.

bigfile/.gitignore

+/_file_zodb.cpp

bigfile/_file_zodb.pyx

+# -*- coding: utf-8 -*-
+# Wendelin.bigfile | BigFile ZODB backend
+# Copyright (C) 2014-2019  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 Free Software licenses or 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.
+# See https://www.nexedi.com/licensing for rationale and options.
+"""XXX"""
+
+from wendelin.bigfile import BigFile
+
+# helper for ZBigFile - just redirect loadblk/storeblk back
+# (because it is not possible to inherit from both Persistent and BigFile at
+#  the same time - see below)
+class _ZBigFile(BigFile):
+    # .zself    - reference to ZBigFile
+
+    def __new__(cls, zself, blksize):
+        obj = BigFile.__new__(cls, blksize)
+        obj.zself = zself
+        return obj
+
+    # redirect load/store/mapper to main class
+    def loadblk(self, blk, buf):    return self.zself.loadblk(blk, buf)
+    def storeblk(self, blk, buf):   return self.zself.storeblk(blk, buf)
+    #def blkmmapper(self):           return self.zself.blkmmapper()

bigfile/file_zodb.py

@@ -175,7 +175,8 @@ will be our future approach after we teach NEO about object deduplication.
 # natural to also use "2" here.
 
 
-from wendelin.bigfile import BigFile, WRITEOUT_STORE, WRITEOUT_MARKSTORED
+from wendelin.bigfile import WRITEOUT_STORE, WRITEOUT_MARKSTORED
+from wendelin.bigfile._file_zodb import _ZBigFile
 from wendelin import wcfs
 from wendelin.lib.mem import bzero, memcpy
 from wendelin.lib.zodb import LivePersistent, deactivate_btree, zconn_at
@@ -510,24 +511,6 @@ if ZBlk_fmt_write not in ZBlk_fmt_registry:
 # ----------------------------------------
 
 
-# helper for ZBigFile - just redirect loadblk/storeblk back
-# (because it is not possible to inherit from both Persistent and BigFile at
-#  the same time - see below)
-class _ZBigFile(BigFile):
-    # .zself    - reference to ZBigFile
-
-    def __new__(cls, zself, blksize):
-        obj = BigFile.__new__(cls, blksize)
-        obj.zself = zself
-        return obj
-
-    # redirect load/store/mapper to main class
-    def loadblk(self, blk, buf):    return self.zself.loadblk(blk, buf)
-    def storeblk(self, blk, buf):   return self.zself.storeblk(blk, buf)
-    #def blkmmapper(self):           return self.zself.blkmmapper()
-
-
-
 # ZBigFile implements BigFile backend with data stored in ZODB.
 #
 # NOTE Can't inherit from Persistent and BigFile at the same time - both are C

setup.py

@@ -256,6 +256,9 @@ setup(
     ext_modules = [
                     _bigfile,
 
+                    PyGoExt('wendelin.bigfile._file_zodb',
+                        ['bigfile/_file_zodb.pyx']),
+
                     PyGoExt('wendelin.wcfs.internal._wcfs',
                         ['wcfs/internal/_wcfs.pyx',
                          'wcfs/internal/wcfs_virtmem.cpp',