Benjamin Ash added the comment:
After doing a bit more testing, I was able to prevent the problem from
occurring in asyncore_test.py with the following patch:
--- /proc/self/fd/11 2013-02-04 11:24:41.298347199 -0500
+++ asyncore_test.py 2013-02-04 11:24:40.393318513 -0500
@@ -19,10 +19,18 @@
self.bind(sock)
self.listen(5)
- def handle_accepted(self, sock, addr):
- print('Incoming connection from %s' % repr(addr))
- handler = EchoHandler(sock)
+ def handle_accept(self):
+ pair = self.accept()
+ if pair is not None:
+ (sock, addr) = pair
+ print('Incoming connection from %s' % repr(addr))
+ handler = EchoHandler(sock)
Using handle_accept() in my code and remembering to call listen() in my
asyncore.dispatcher server's constructor did the trick.
I am not sure if we still have a bug here though, since if the subclass doesn't
define a proper handle_accept() we get into the select() loop and 100% CPU
utilization after the initial client connection.
----------
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Python tracker <[email protected]>
<http://bugs.python.org/issue12502>
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