Jan Holesovsky wrote:
I'm not sure if concurrent access for documents is a good idea.
Currently our merging is not perfect and you will have a lot of
disappointed users. For me this is doing the second step before the
first. Without a better merging we can't offer concurrency.
I am a fan of incremental improvements ;-) So if the merging is not 100%, the
users will tell us & we'll be able to fix that. I cannot do analysis of all
the corner cases; all I know is that the merging works well enough for basic
work. I will improve it in the next iteration based on the feedback if it's
not sufficient.
Change tracking and merging in Calc is already supposed to handle all
content (not formatting) changes that are not disabled in recording
mode. That seems to be enough to make the feature useful.
Besides that I don't think that something must be changed in osl. We
just have to change our way how we interpret the results from openFile.
Unfortunately it must be. I don't want to open the file again, I just want to
set/clear the lock, and there's no API for that in osl.
Why not open it again? Treat it more like import/export instead of
load/save, with embedded objects in a temporary storage, and don't keep
a file handle. Then, before saving, check if your "shared" file is still
there (you'll have to read it anyway, for the intermediate changes).
Niklas
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