[Kst] Object shuffle in libkst

[George Staikos]

Later today or tomorrow I am going to reshuffle some objects in libkst in 
order to finish of the fix for deadlocks in plugins.  All primitive objects 
can have "providers", and need to lock those providers.  Locking a provider 
objects (dataobject), however, requires locking the inputs and outputs, which 
in turn tries to lock the original object that triggered the lock.  There are 
two types of deadlocks introduced by this.  By far the biggest problem was 
with KstVector, and I fixed it already in trunk.  In order to fix this for 
strings, scalars, and matrices, I want to introduce a new base class between 
those objects and KstObject which reworks the locking and contains the 
"provider" logic.  It will require a full recompile of everything and will 
touch a number of files.  As long as my last commit didn't introduce any new 
regressions, I will go forward with this change within the next 24 hours.


-- 
George Staikos
KDE Developer				http://www.kde.org/
Staikos Computing Services Inc.		http://www.staikos.net/