--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/roundup/backends/locking.py	Mon Apr 15 23:25:15 2002 +0000
@@ -0,0 +1,51 @@
+#! /usr/bin/env python
+# Copyright (c) 2002 ekit.com Inc (http://www.ekit-inc.com/)
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+#   The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+# $Id: locking.py,v 1.1 2002-04-15 23:25:15 richard Exp $
+
+'''This module provides a generic interface to acquire and release
+exclusive access to a file.
+
+It should work on Unix and Windows.
+'''
+
+import portalocker
+
+def acquire_lock(path, block=1):
+    '''Acquire a lock for the given path
+    '''
+    import portalocker
+    file = open(path, 'w')
+    if block:
+        portalocker.lock(file, portalocker.LOCK_EX)
+    else:
+        portalocker.lock(file, portalocker.LOCK_EX|portalocker.LOCK_NB)
+    return file
+
+def release_lock(file):
+    '''Release our lock on the given path
+    '''
+    portalocker.unlock(file)
+
+#
+# $Log: not supported by cvs2svn $
+#
+#