V4RB 3.0 and pre-emptive threads

[Dave Addey]

Hi Ruslan,

Thank you for all of the help with this.  I have one more possibility to
explore.  Would it be possible for me to declare directly against the
Valentina Kernel dylib, and pass in a reference to the Valentina objects I
have already created?  Something like this in RB:


Const kVKernelLib =
"/usr/local/lib/vcomponents/libvkernel_fat_release.dylib"

Declare Function ValentinaInit Lib kVKernelLib (inCacheSize as UInt32,
inMacSNPtr as Ptr, inWinSNPtr as Ptr, inUnixSNPtr as Ptr) as UInt32

Dim VCacheSize as integer
VCacheSize = ValentinaInit(8*1024*1024, 0, 0, 0)


Whenever I try this, my REALbasic application crashes with a console error
of:


dyld: lazy symbol binding failed: Symbol not found: _ValentinaInit
  Referenced from: /Documents/DJ-1800/svn_code_cvsdude/PreemptiveThread/Test
project/PreemptiveThread.debug.app/Contents/MacOS/PreemptiveThread.debug
  Expected in: /usr/local/lib/vcomponents/libvkernel_fat_release.dylib


This does not involve passing references to existing REALbasic objects, and
I guess I would need to do this too.

I am very aware that this is *not* the way this is meant to be done!  But I
have to find a way to call Valentina, on a true, preemptive background
thread from within REALbasic, using my existing REALbasic valentina objects,
but without using the V4RB plugin.  My only alternative is to re-write all
of my database code in a plugin (and this is a lot of code).

If you have any other ideas as to how I could do this, I would be very
grateful, as I am hitting my head against a brick wall.

Thanks,

Dave.

> From: Ruslan Zasukhin <sunshine at public.kherson.ua>
> Reply-To: Valentina Developers <valentina at lists.macserve.net>
> Date: Fri, 20 Jul 2007 18:21:33 +0300
> To: "valentina at lists.macserve.net" <valentina at lists.macserve.net>
> Conversation: V4RB 3.0 and pre-emptive threads
> Subject: Re: V4RB 3.0 and pre-emptive threads
> 
> On 20/7/07 5:04 PM, "Dave Addey" <listmail1 at dsl.pipex.com> wrote:
> 
> Hi Dave,
> 
>> Thanks for the info on this.  One final question: is it possible to pass
>> Valentina objects (Databases, Tables) from REALbasic to a plugin (my own
>> plugin)?  And pass a Vcursor back?  I'm trying to avoid having to move *all*
>> of my Valentina code to a plugin...
> 
> I doubt.
> 
> Never have hear about cooperation of plugins in RB
> 
> 
> -- 
> Best regards,
> 
> Ruslan Zasukhin
> VP Engineering and New Technology
> Paradigma Software, Inc
> 
> Valentina - Joining Worlds of Information
> http://www.paradigmasoft.com
> 
> [I feel the need: the need for speed]
> 
> 
> _______________________________________________
> Valentina mailing list
> Valentina at lists.macserve.net
> http://lists.macserve.net/mailman/listinfo/valentina