[Gumstix-users] Databases and transactions...

[Dan T. <log...@gm...>]

Hi,

I've recently hooked up a little GPS module to my gumstix.  The module
outputs ASCII NMEA data via a serial connection.  I have written a
little program (C++) to decode this data (running on my development
box at the moment, but gumstix-ready), but now I'm faced with a
problem...

Basically I want one "monitor" program to listen to the serial port
and store incoming information.  I then want this information to be
disseminated to other applications running on the gumstix (e.g.
logging applications, CGIs and suchlike).

In a non-embedded world I would have the monitor program insert
records into a relational database of some kind and have the other
programs access the data via the RDBMS.  This would control locking
and file storage in one go.  On the gumstix, however, all I can think
of is to write the data to files.  This could be problematic if the
monitor is writing to the file as another application is reading it.

Has anyone got any better ideas?  Are there any relational databases
currently working on the gumstix which I can use?  Transactions would
be fantastic...

Dan

--=20
Dan Taylor

Software Development Engineer, JTL Systems Ltd
PhD Student, Reading University, UK

http://www.logicalgenetics.com