[maemo-developers] What's wrong with folder browsing?

[From: Gustavo Sverzut Barbieri]

On 5/21/07, nick loeve <trickie at gmail.com> wrote:
> I use two 4gig SD cards. Once i stuffed them full of media canola-conf
> would just take over my cpu ( i am taking a stab in the dark, that
> this was the indexer) . I waited for quite a while, and even had to
> charge my n800 again, and i still couldn't use it, as everything would
> stop responding.
>
> I just uninstalled it as i got sick of doing 'killall -9 canola-conf'
> via xterm everytime my device slowed right down.
>
> If there is anything i can do to help debug this, then let me know and
> i will try again, but I am also using a modified kernel to support
> SDHC cards, so I don't know if my debugging counts :)

Just hack scripts (both init.d and dbus/service) and launch it with
lower priority, it should be the default in next release.

It basically works like this:
  - 1st time: readdir() + regexp (defined in gconf) + open() + parse
(id3lib, shipped with device) + db insert
  - on reboot: consistency check: db select + stat(), readdir() +
regexp + db query + parse (if not in db)
  - on SD removal: db delete from table where path like '/mnt/mmcX/%'.
  - on SD add: consider as first time.

Points to consider:
 - collection can be restricted, just use configuration tool. Future
versions will allow you to limit parsers (media type) per folder, like
/mnt/mmcX/Audio is just for audio, leave my covers out of picture
collection.
 - data is deleted when SD is removed in order to avoid DB growing
indefinitely, maybe you'll not see the same card again (it was a
friend's SD, for example) or data there will not be present anytime
soon (you just deleted those files using PC or other device)

it's always a trade off, you can also open xterm and execute
gst-launch... or use any simple UI.

-- 
Gustavo Sverzut Barbieri
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