Jean-Paul Calderone <exarkun at divmod.com> wrote: > On Wed, 17 Sep 2008 10:40:01 PDT, Bill Janssen <janssen at parc.com> wrote: > >Ah, now I remember. It seems that sometimes when SSL_ERROR_WANT_READ > >was returned, things would block; that is, the "handle_read" method on > >asyncore.dispatcher was never called again, so the SSLSocket.recv() > >method was never re-called. There are several levels of buffering going > >on, and I never figured out just why that was. This (very rare) re-call > >of "read" is to handle that. > > > > You certainly do need to call read again if OpenSSL fails an SSL_read with > a want-read error, but in asyncore, you don't want to do it right away, > you want to wait until the socket becomes readable again, otherwise you *do* > block waiting for bytes from the network. See the SSL support in Twisted > for an example of the correct way to handle this. > > Jean-Paul Yes, I understand, and that's how I started out. The bug we were seeing was that "handle_read" wasn't being called again by asyncore. Bill
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4