Boris Kropivnitsky wrote:
> I wonder if anyone knows a way or tool to purge DBCache? It seems like
> with the introduction of NVFS-based devices discharged battery has
> became a valid scenario for testing. It would be quite tedious procedure
> to actually discharge battery every time one needs to tests how the
> application survives it.
I'm looking at the palmOne SDK 4.0 beta developer's guide
documentation, and it says this,
Performing a soft reset wipes the RAM clean and retrieves
a fresh load of the rom from the NAND flash. A hard reset
additionally erases the storage heap that is in the NAND
flash.
I assume this means that a soft reset wipes the *entire* RAM clean,
including the DBCache. So as long as a soft reset doesn't sync
the DBCache before rebooting, it seems like it should be good.
Seems like you could test this by writing a simple app that writes
one value to a PDB record, then syncs the cache, the writes another
value. Then run that app and immediately do a soft reset before
closing the database. (If you don't want to install the new palmOne
SDK just to get access to the function that syncs the cache, the
documentation says that going into sleep mode will sync the DBCache,
so you should be able to write a record, pop up an alert, turn
off the device and then turn it back on, and then dismiss the
alert, and then have the program write a new record, then hit
the reset button.)
- Logan
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