2004 4d open issue

[Chuck Miller-2]

Hi All,

Does anyone know a way to simulate on error in 4d open. Unless I am  
missing something the command does not exist as it does in 4d write  
and odbc pro

I would like to trap an error and not have 4d open just sit there when  
a connection is lost.

Short of that is there a way to set the timeout for 4d open command



Regards

Chuck
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Chuck Miller                          Voice: [phone]
Informed Solutions, Inc.              Fax: [phone]
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[Tim Nevels]

On Nov 12, 2009, at 12:41 PM, Chuck Miller wrote:

> Does anyone know a way to simulate on error in 4d open. Unless I am
> missing something the command does not exist as it does in 4d write
> and odbc pro
>
> I would like to trap an error and not have 4d open just sit there when
> a connection is lost.

Almost all 4D Open commands return an error code.  If you lose  
connection, the 4D Open command will return an error code.  You have  
to "just sit there" until the timeout limit is reached before 4D Open  
can determine that the connection has been lost.

I do not know what the time out value is.  I believe it is between 60  
- 120 seconds.  I do not know if you can set this value -- I  have not  
found any way to do this.  I think you are stuck waiting.

Tim

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Tim Nevels
Innovative Solutions
785-749-3444
timnevels@...
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[Chuck Miller-2]

Hi Tim,

That is how we coded it but I was hoping I missed something really  
simple.

Thanks and Regards
Chuck
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Chuck Miller                          Voice: [phone]
Informed Solutions, Inc.              Fax: [phone]
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On Nov 12, 2009, at 2:13 PM, Tim Nevels wrote:

>
> On Nov 12, 2009, at 12:41 PM, Chuck Miller wrote:
>
>> Does anyone know a way to simulate on error in 4d open. Unless I am
>> missing something the command does not exist as it does in 4d write
>> and odbc pro
>>
>> I would like to trap an error and not have 4d open just sit there  
>> when
>> a connection is lost.
>
> Almost all 4D Open commands return an error code.  If you lose  
> connection, the 4D Open command will return an error code.  You have  
> to "just sit there" until the timeout limit is reached before 4D  
> Open can determine that the connection has been lost.
>
> I do not know what the time out value is.  I believe it is between  
> 60 - 120 seconds.  I do not know if you can set this value -- I  
> have not found any way to do this.  I think you are stuck waiting.
>
> Tim
>
> ********************************************
> Tim Nevels
> Innovative Solutions
> 785-749-3444
> timnevels@...
> ********************************************
>
> **********************************************************************
> Get up to $600 to spend on Amazon.comthis holiday season - http://www.4d.com/serverpromo.html
>
> 4D Internet Users Group (4D iNUG)
> FAQ:  http://lists.4d.com/faqnug.html
> Archive:  http://lists.4D.com/archives.html
> Options: https://lists.4d.com/mailman/options/4d_tech
> Unsub:  mailto:4D_Tech-Unsubscribe@...
> **********************************************************************

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[Roger Vogt]

Hi Chuck

There is no way to change the 4D Open timeout (60 secs).
What I did is to test with 4DIC, if tcp port 19813 is open. (timeout=1sec).
If the port is open, you lose 30 milliseconds
if the port is closed, you save 59 seconds.

You can also use my 4D Open component and change the timeout yourself (default 2 secs).

Roger
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