Net->Connect timeout

[Al Fleming]

I'm trying to work out how to set a timeout for the [Net->connect] tag.
With the TCP_open tags there was a timeout parameter but with Net-
 >Connect it doesnt seem possible to change this from the default (60  
seconds?)
I may need to increase or reduce this timeout depending on my  
particular application.

I'm testing this by trying to connect to a non-existent IP address on  
our subnet.

i.e.
var:'myConnection'=(net);
$myConnection->(Connect: '192.168.0.11', 80);

Can anyone point me in the right direction?

Al Fleming

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Tel: [phone]
Fax: [phone]
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[Kyle Jessup]

On Jun 1, 2005, at 2:50 PM, Al Fleming wrote:

> I'm trying to work out how to set a timeout for the [Net->connect]  
> tag.
> With the TCP_open tags there was a timeout parameter but with Net-
> >Connect it doesnt seem possible to change this from the default  
> (60 seconds?)
> I may need to increase or reduce this timeout depending on my  
> particular application.
>
> I'm testing this by trying to connect to a non-existent IP address  
> on our subnet.
>
> i.e.
> var:'myConnection'=(net);
> $myConnection->(Connect: '192.168.0.11', 80);
>
> Can anyone point me in the right direction?

The only example of using the net type in the online LDML ref shows  
exactly how to do this.

Here is another example. This one will wait 12 seconds for a  
connection to localhost, then ask for the default HTTP document and  
output the first up to 4000 chars:

local('net' = net);
if (#net->setBlocking(false) & connect('127.0.0.1', 80) & wait(12,  
net_waitwrite) == net_waitwrite);
     #net->setBlocking(true) & write('GET / HTTP/1.0\r\n\r\n') & read
(4000);
/if;
handle;
     #net->close;
/handle;

-K

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[Al Fleming]

Thanks for this. I'll give it a try.
For what its worth, I couldnt get the example in the LDML
ref to work: With setblocking set to false, the first
Fail_If was kicking in every time - you might want to have
a look and see if its just me or whether the example needs
updating.
 
On Wed, 1 Jun 2005 15:35:54 -0400
  Kyle Jessup <[hidden email]> wrote:

>
>On Jun 1, 2005, at 2:50 PM, Al Fleming wrote:
>
>> I'm trying to work out how to set a timeout for the
>>[Net->connect]  
>> tag.
>> With the TCP_open tags there was a timeout parameter but
>>with Net-
>> >Connect it doesnt seem possible to change this from the
>>default  
>> (60 seconds?)
>> I may need to increase or reduce this timeout depending
>>on my  
>> particular application.
>>
>> I'm testing this by trying to connect to a non-existent
>>IP address  
>> on our subnet.
>>
>> i.e.
>> var:'myConnection'=(net);
>> $myConnection->(Connect: '192.168.0.11', 80);
>>
>> Can anyone point me in the right direction?
>
>The only example of using the net type in the online LDML
>ref shows  exactly how to do this.
>
>Here is another example. This one will wait 12 seconds
>for a  connection to localhost, then ask for the default
>HTTP document and  output the first up to 4000 chars:
>
>local('net' = net);
>if (#net->setBlocking(false) & connect('127.0.0.1', 80) &
>wait(12,  net_waitwrite) == net_waitwrite);
>     #net->setBlocking(true) & write('GET /
>HTTP/1.0\r\n\r\n') & read
>(4000);
>/if;
>handle;
>     #net->close;
>/handle;
>
>-K
>
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>Lasso Support: http://support.omnipilot.com/
>Search the list archives:
>http://www.listsearch.com/lassotalk.lasso
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