On Tue, Aug 5, 2014 at 5:14 PM, Petru Ciobanu <[email protected]> wrote:
> > What is the correct way to handle connection closed by client? ... > explanation is following. > > To maintain opened a connection I use advices founded in > streaming#streaming-with-generators > <http://turbogears.readthedocs.org/en/latest/cookbook/streaming.html#streaming-with-generators> > page, > with the only difference that I should interrupt while cycle only when the > client has disconnected. > GeneratorExit exception is raised inside your generator, catch the exception and do whatever cleanup you require. See http://runnable.com/U-D9lkz30Sk6Vg4m/server-side-events-with-turbogears2-for-python for a practical example (Note that you must download it and run on your local PC as on runnable the connection is never closed probably due to runnable proxy) > When the client is resetting the connection for example when refreshing > the page... I get this error when trying to send an event to the client, > after the connection was closed: > > File "/virtenv/lib/python2.7/site-packages/gevent/socket.py", line 435, > in send > > return sock.send(data, flags) > error: [Errno 32] Broken pipe > > This is a known GEVENT issue, the Broken Pipe error can usually just be ignored, but there is an open ticket on gevent to suppress the error message: https://github.com/surfly/gevent/pull/377 > somewhere I found that in a wsgi environment I could use > > while True: > websocket = request.environ['wsgi.websocket'] > if not websocket.socket: > break > else: > send_next_event() > closed_connection_handler() > > but apparently, this is not a solution for Turbogears as there is not a > wsgi.websocket key in request.environ dictionary. And I can't find a gevent > environment variable suitable for this. > That is actually WebSocket related, SSE doesn't use web sockets so you don't have the wsgi.websocket environment key :D -- You received this message because you are subscribed to the Google Groups "TurboGears" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/turbogears. For more options, visit https://groups.google.com/d/optout.
