Bugs item #539444, was opened at 2002-04-04 15:57 Message generated for change (Settings changed) made by akuchling You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=539444&group_id=5470
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Jeremy Hylton (jhylton) >Assigned to: Josiah Carlson (josiahcarlson) Summary: asyncore file wrapper & os.error Initial Comment: The file wrapper makes a file descriptor look like an asycnore socket. When its recv() method is invoked, it calls os.read(). I use this in an application where os.read() occasionally raises os.error (11, 'Resource temporarily unavailable'). I think that asyncore should catch this error and treat it just like EWOULDBLOCK. But I'd like a second opinion. ---------------------------------------------------------------------- Comment By: Martin v. Löwis (loewis) Date: 2002-04-07 05:03 Message: Logged In: YES user_id=21627 I'm still uncertain what precisely was happening here. What system was this on? On many systems, EAGAIN is EWOULDBLOCK; if that is the case, adding EAGAIN to the places that currently handle EWOULDBLOCK won't change anything. ---------------------------------------------------------------------- Comment By: Jeremy Hylton (jhylton) Date: 2002-04-05 11:44 Message: Logged In: YES user_id=31392 It happens when the file is a pipe. For details, see the ZEO bug report at https://sourceforge.net/tracker/index.php? func=detail&aid=536416&group_id=15628&atid=115628 I've included the traceback from that bug report, too. error: uncaptured python exception, closing channel <select-trigger (pipe) at 81059cc> (exceptions.OSError:[Errno 11] Resource temporarily unavailable [/home/zope/opt/Python- 2.1.2/lib/python2.1/asyncore.py|poll|92] [/home/zope/opt/Python- 2.1.2/lib/python2.1/asyncore.py|handle_read_event|386] [/home/zope/opt/Python-2.1.2/lib/python2.1/site- packages/ZEO/trigger.py|handle_read|95] [/home/zope/opt/Python- 2.1.2/lib/python2.1/asyncore.py|recv|338] [/home/zope/opt/Python- 2.1.2/lib/python2.1/asyncore.py|recv|520]) Exception exceptions.OSError: (9, 'Bad file descriptor') in <method trigger.__del__ of trigger instance at 0x81059cc> ignored ---------------------------------------------------------------------- Comment By: Martin v. Löwis (loewis) Date: 2002-04-05 04:00 Message: Logged In: YES user_id=21627 Can you report details of the file that returns EWOULDBLOCK? This is not supposed to happen in applications of the file_wrapper. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=539444&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
