V4RB 3.0 and pre-emptive threads

[Dave Addey]

Hi Charles,

I've downloaded V4CC, but I'm still not managing to declare against the
library.  I'm assuming I need to declare against
"/Library/Frameworks/V4CC.Framework/V4CC"?  How would I go about making a
declare for (e.g.) initialising Valentina, or shutting down Valentina?

I'm sure that as soon as I get started on this, I'll be good to go - but I'm
struggling to get established.

Does the same go for declaring against VSDK.Framework?

Sorry for the basic questions - I'm generally okay with declares (albeit new
to Cocoa ones), but just need some help getting started.

Dave.

> From: Charles Yeomans <charles at declareSub.com>
> Reply-To: Valentina Developers <valentina at lists.macserve.net>
> Date: Mon, 23 Jul 2007 10:46:03 -0400
> To: Valentina Developers <valentina at lists.macserve.net>
> Subject: Re: V4RB 3.0 and pre-emptive threads
> 
> If you want to try this approach, you might be better off getting the
> Objective-C library and declaring to that.
> 
> 
> Charles Yeomans
> 
> 
> On Jul 23, 2007, at 6:10 AM, Dave Addey wrote:
> 
>> 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.
>> 
> 
> _______________________________________________
> Valentina mailing list
> Valentina at lists.macserve.net
> http://lists.macserve.net/mailman/listinfo/valentina