Re: [9fans] database fileservice

Re: [9fans] database fileservice

[Stephen Harris]

Nick Gorham wrote:

> If you wanted any help with the port and didn't mind explaining plan 9 
> to me I wouldn't mind helping. 

Unfortunately I'm something of a beginner myself with Plan 9.  
It would probably be a good project to learn Plan 9 with, given that 
you are already familiar with ODBC.  I haven't touched ODBC in years, 
and it looked like for me it would be a learning experience for recent 
ODBC more so than for Plan9.  I'm going to try to port a database 
(postgres) instead because I've been interested in its internals anyway, 
and I think it would be nice to have a standalone database for Plan 9.

That being said, if you want to go for it I will try to help as much
as possible. Query result sets map naturally into a file heirarchy, so 
it will be a really nice thing when either port is completed, and we 
can write a database file service.

> AS to the dynamic loading, thats half the point of the driver manager, 
> you link the application to the DM and select the driver at run time.

Yep, this *may be* a real problem though, since as far as I know 
there's no way to load shared libraries in Plan 9, it just hasn't 
needed it so far (which says a lot). You could rewrite a little to 
eliminate the dynamic loading, and instead just compile in the drivers 
you want, but as you say that would defeat the purpose of the driver 
manager.  Creative solutions to this would probably be welcomed by all.

Cheers,
Steve

Everything you do from now on will be more fun - Windows 95 installation

Re: [9fans] database fileservice

[Nick Gorham]

Stephen Harris wrote:

> Unfortunately I'm something of a beginner myself with Plan 9.
> It would probably be a good project to learn Plan 9 with, given that
> you are already familiar with ODBC.  I haven't touched ODBC in years,
> and it looked like for me it would be a learning experience for recent
> ODBC more so than for Plan9.  I'm going to try to port a database
> (postgres) instead because I've been interested in its internals anyway,
> and I think it would be nice to have a standalone database for Plan 9.

Ok, I have a box that I was going to rebuild, I will try and install plan 9
on it and see what happens.

> Yep, this *may be* a real problem though, since as far as I know
> there's no way to load shared libraries in Plan 9, it just hasn't
> needed it so far (which says a lot). You could rewrite a little to
> eliminate the dynamic loading, and instead just compile in the drivers
> you want, but as you say that would defeat the purpose of the driver
> manager.  Creative solutions to this would probably be welcomed by all.

Well there may be a more appropiate method, perhaps opening them as a
device of some such method, I must read more of the white papers first.

> Everything you do from now on will be more fun - Windows 95 installation

<grin>

--
Nick Gorham
"I wish there was a knob on the TV to turn up the intelligence,
There's a knob called brightness, but it doesn't work."
- Eugene P. Gallagher

[9fans] which implementation of an fs is cleanest?

[Matt]

Hi,

I'm going to start studying source to implement an fs by mounting a file
(xml in this case)

I was wondering which source code would be the cleanest to study when it
comes to an fs

I was going to look through ftpfs and / or olefs

good places?

Matt

Re: [9fans] which implementation of an fs is cleanest?

[forsyth]

>>I was going to look through ftpfs and / or olefs

olefs uses 9p(2) which might make things easier.
i hope so, because i was about to use 9p(2) myself!