Re: [DotGNU]Calling C

[Gopal V]

If memory serves me right, Chris Smith wrote:
> So what is the most appropriate mechanism for doing this with pnet
> PInvoke or that internalCall technique Gopal was talking about?
> I'm concerned with cross-platform-ness here (assuming gpgme is cross platform 
> too).

Pinvoke == invoking off shared objects
internalCall == linking the gpgme into the engine itself

You might be better off with Pinvoke as it a more general method ...
ie you can call the same functions for all VMs from the same .so .

internal call would be used if & only if you have to do something 
which needs to be bound to the engine ... So for example , security
checks would be better as internal calls than PInvoke .. Also icalls
can throw exceptions etc , while Pinvoke relies totally on return
values for detecting errors (IIRC).

In all , I think you should use Pinvoke here .... for sake of simplicity
and all that...

> Also, I need to allow certain webservices access to the goldwater API - which 
> means swiging them for python/perl, and the same mechanism above for pnet..

swig them for C# as well ...

> So what's concensus? Pinvoke my libs or internalCall - internalCall is more 
> efficient isn't it?

Pinvoke it !. Think of it as rapid prototyping :-)

Gopal
-- 
The difference between insanity and genius is measured by success