psychon b359f96886 Avoid a possibly expensive FindSockByName() for finding IRC socks ...

While a user is connecting to an IRC server, the CUser instance didn't know
about the CIRCSock instance (due to historic reasons). This meant that we needed
to use FindSockByName() when we had to check if there is any CIRCSock associated
with this user. However, this is a bad idea since FindSockByName() is O(n) on
the number of sockets that the socket manager is managing.

Instead, we now already set CUser::m_pIRCSock when the CIRCSock is created so
that checking for an irc socket becomes O(1).

This was inspired by the results of profiling a znc instance with 900 users.


git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@2171 726aef4b-f618-498e-8847-2d620e286838

2010-11-06 15:21:59 +00:00

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