[V4RB] Handling of dbs being served

[Frank Bitterlich]

Jon,

AFAIK it's at least dangerous, probably impossible, maybe even fatal
(for the database) to open it twice. 

But if you have that database already open in the same application (the
HTTP server app), there's no need to open it twice; just make it (the
VDatabase object) available to the HTTP server code via some global
array or similar, and let the HTTP server part "share" the database
object. I think that should be safe.

Cheers,
   Frank+++

jda wrote:
> 
> Hi all,
> 
> I'm creating a simple HTTP server in RB that will serve information
> from Valentina databases. Users will have access via their browsers,
> and will not be able to modify the databases over the internet (at
> least not yet).
> 
> My plan is to have the web pages pointing at my server tell which
> database they want to search, and the server will loop through open
> databases. If it finds a match, it will search that database and
> respond. If that database is not open, the server will open it, fetch
> the data, and then close the database.
> 
> My question is, is it dangerous to allow the server to "piggyback" on
> an already open database? In other words, if the database is in use
> and being updated by the user, could this "read only" access cause
> problems?
> 
> If this is a potential problem, I can allow access to only databases
> that are not already open. But it would be convenient if someone
> could be using the database locally at the same time it is being used
> remotely.
> 
> Note that this server is intended for modest use, not for thousands of users.
> 
> Thanks.
> 
> Jon


--
Günter Schmidt & Co. oHG         
Frank Bitterlich             eMail: bitterlich at gsco.de
Schlosserstr. 4              WWW:   http://www.gsco.de/gsco
D-60322 Frankfurt            Tel.:  069 / 156809-29
GERMANY                      Fax:   069 / 156809-28