[PATCH] Title key cache and minor fixes

[adam at yggdrasl.demon.co.uk]

d95hjort at dtek.chalmers.se wrote:

<snip diffs>

> What are you trying to fix here?  A small description of how it fails 
> whould have made it much simpler to know if this was the right fix.
> Is this for the case of insering a key first in a non empty list?

Sorry... <slaps self>  Would help if I'd said.  Yes, you're correct.
When inserting a key at the start of a non-empty list, the first list
item was being lost (but not freed).  This would lead to:

1) a minor memory leak (as all those "lost" first entries got dropped
   each time a seek was done back to an early disc block)
2) lots and lots of repeated entries in the title key cache (since
   DVD playing seems to re-read early blocks a lot in menus, etc.)

#2 was what alerted me to the problem in the first place.  My apologies
for the poor (non-existent) explanation.

Would it be helpful for me to post a better explanation of the cache
patch to the list?
-- 
Adam Jones


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