Jeremy Hylton wrote:
On Thu, 17 Mar 2005 16:25:44 -0500, Aahz <[EMAIL PROTECTED]> wrote:

On Thu, Mar 17, 2005, Jeremy Hylton wrote:

Are the thread semantics for file objecst documented anywhere?  I
don't see anything in the library manual, which is where I expected to
find it.  It looks like read and write are atomic by virtue of fread
and fwrite being atomic.

Uncle Timmy will no doubt agree with me: the semantics don't matter. NEVER, NEVER access the same file object from multiple threads, unless you're using a lock. And even using a lock is stupid.


I'm not looking for your permission or approval.  I just want to know
what semantics are intended.  If the documentation wants to say that
the semantics are undefined that okay, although I think we need to say
more because some behavior has been provided by the implementation for
a long time.


I think this is left unspecified for example by Java too. I would be surprised if Jython would offer the same characteristics in this respect as CPython.
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com

Reply via email to