V4RB 3.0 and pre-emptive threads

[Dave Addey]

Hi Ruslan,

No worries.  Thank you for persevering with this!

I agree that maybe REALbasic is not the tool to use for all of this
pre-emptive threading, but sadly I don't really have a choice right now.
However, the good news is that thanks to Charles's help with V4CC, I think I
have a workable approach.  It has taken some work, but I think it will do
what I need.

Thanks both to Charles and Ruslan for all the help!

Dave. 

> From: Ruslan Zasukhin <sunshine at public.kherson.ua>
> Reply-To: Valentina Developers <valentina at lists.macserve.net>
> Date: Tue, 24 Jul 2007 15:34:53 +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 24/7/07 11:30 AM, "Dave Addey" <listmail1 at dsl.pipex.com> wrote:
> 
> Hi Dave,
> 
>> Thanks to Charles's code, I'm now up and running with calling Valentina from
>> the background thread.  I have one final question, and it's really an "is
>> this possible?" question.  Here goes...
> 
> ------- 
>> If I open a database on the main thread, is there a way for me to pass a
>> reference to it to my V4CC declares?
> 
> I afraid no.
> 
>> I'm aware that the VDatabase object in
>> REALbasic is a pointer to a REALobject in the V4RB plugin, and is not a
>> pointer straight to a valentina database instance.
> 
>> Is there some way I can
>> pass these between the two?  (Likewise for a Vcursor, to be passed back from
>> my V4CC declares to the REALbasic code on the main thread).
> 
> Still no and no :-(
> 
> REALobject contains INISDE (where and how is closed info) our structure
> 
> struct DatabaseData
> {
>     ulong                    hack; // for RB 2005
>     FBL::I_Database*        mpFblDatabase;
>     VSQL::I_SqlDatabase_Ptr    mpSqlDatabase;
>     bool                    mLocal;
>     I_Encryptable*            mpEncryptable;
> };    
> 
> 
> Even if assume, that we make in V4RB additional methods like
> 
>     Vdatabase.GetRef() as Integer
> 
> To return you right into RB the raw value of FBL::I_Database*
> Still not solved, because V4CC is also ADK and it also have
> wrapper-structures around engine.
> 
> I think this is wrong way ...may be you need switch from REALbasic ?
> 
> 
> 
> -- 
> 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]
> 
> 
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