reverse transaction.
The proximate cause was that xaccTransBeginEdit put the KVP cache
variable of the new transaction in a state that prevented the value
from being copied. More generally the KVP cache variables didn't
handle any invalidating events.
With the change to GValue usage in qof_instance_get_kvp it's now
a simple memory dereference with no copying except for POD types
so caching is no longer useful. This commit removes caching from
Transaction, eliminating the notes problem.
This value is queried on each comparison of split or txn sort function,
which means it is called quite a lot. Avoiding the KVP lookup of this
property gains a lot in terms of CPU cycles.
It is split into
- /libgnucash (for the non-gui bits)
- /gnucash (for the gui)
- /common (misc source files used by both)
- /bindings (currently only holds python bindings)
This is the first step in restructuring the code. It will need much
more fine tuning later on.