V4RB varchar-351 error

[Charles Yeomans]

On Mar 18, 2004, at 4:23 AM, Ruslan Zasukhin wrote:

> On 3/18/04 11:17 AM, "Cindy Brown" <cindy at kowhaiprogramming.com> wrote:
>
> Hi Cindy,
>
>>> If yes, then I can think only about the next mistake:
>>>   you have forget in SERVER app do semaphoring of Valentina engine 
>>> calls.
>>
>> How do you do this? I am a programmer who taught myself who to 
>> program so
>> I'm not always sure what these things mean.
>
> Okay, so you have own SERVER application.
> Then first of all:
>
> I assume that you create new thread for each connected client, yes?
> So if you have 10 connections you have 10 threads. Yes?
>
> And here IMPORTANT to understand, that V4RB plugin is NOT thread save.
>
> This means that you must create in your app ONE global mutex,
>     gValentinaMutex
>
> And from YOUR threads, BEFORE call any Valentina function you must do
>
>     gValentinaMutex.lock
>
>         Valentina function call
>
>     gValentinaMutex.unlock
>
>
> This is not exact syntax of REALbasic, I don't know it.
>

gVSemaphore as Semaphore


gVSemaphore.Signal

Valentina function call

gVSemaphore.Release

Charles Yeomans