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- add todos from a posting of Matthew Nicholson to the mailinglist 

git-svn-id: https://pyst.svn.sourceforge.net/svnroot/pyst/pyst/trunk@9 01a3061f-1c3a-49da-a2a0-fa5697faa6a0
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ralf 2010-06-18 12:59:45 +00:00
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@ -63,6 +63,33 @@ control tool (currently svn).
function in a manager class. The manager class should be adapted to
have a send method that know the general format of the classes.
Matthew Nicholson writes on the mailinglist (note that I'm not sure I'll do
this, I'm currently satisfied with the threaded implementation):
For pyst 0.3 I am planning to clean up the manager.py. There are
several know issues with the code. No one has actually reported these
as problems, but I have personally had trouble with these. Currently
manager.py runs in several threads, the main program thread, a thread to
read from the network, and an event distribution thread. This causes
problems with non thread safe code such as the MySQLdb libraries. This
design also causes problems when an event handler throws an exception
that causes the event processing thread to terminate.
The second problem is with the way actions are sent. Each action has a
specific function associated with it in the manager object that takes
all possible arguments that may ever be passed to that action. This
makes the api somewhat rigid and the Manager object cluttered.
To solve these problems I am basically going to copy the design of my
Astxx manager library (written in c++) and make it more python like.
Each action will be a different object with certain methods to handle
various tasks, with one function in the actual Manager class to send the
action. This will make the Manager class much smaller and much more
flexible. The current code will be consolidated into a single threaded
design with hooks to have the library process events and such. These
hooks will be called from the host application's main loop.
Upgrading from older versions
-----------------------------