Hi Dan,
  I checked the implementation of back up API and did not notice anywhere
had turned on "PRAGMA locking_mode=exclusive" or any other similar PRAGMA
explicitly.
  And another thing wonder me is why I did not see the journey file before
power off ?


>
> >      b. There always a journey file exist when I reset the system. I
> > am
> > thinking that If I reset the system after the loadOrSaveDb()
> > returned ,as
> > shown below,there should be no journey file exist as the write has
> > finished.
>
> Did you open the flash database with "PRAGMA locking_mode=exclusive", or
> some other option that would turn on persistent journals?
>
> Dan.
>
>
>


-- 
Pierr Chen
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