[New-bugs-announce] [issue4607] uuid behavior with multiple threads
Morten Bentsen
report at bugs.python.org
Tue Dec 9 11:13:33 CET 2008
New submission from Morten Bentsen <mortenab at gmail.com>:
The uuid module uses a single global buffer for storing random values
obtained from the system. This can (and does) cause non-uniqueness of
generated id's when using the uuid4 function in a multithreaded program.
The following snippet shows the problem - _buffer is the global buffer:
# When the system provides a version-4 UUID generator, use it.
if _uuid_generate_random:
_uuid_generate_random(_buffer)
return UUID(bytes=_buffer.raw)
----------
components: Library (Lib)
messages: 77401
nosy: mortenab
severity: normal
status: open
title: uuid behavior with multiple threads
type: behavior
versions: Python 2.5
_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue4607>
_______________________________________
More information about the New-bugs-announce
mailing list