[Serusers] serial forking with a recursive failure_route block

[Jiri Kuthan]

I did not think so much about watching URIs, rather just keeping some
internal status associated with transaction in progress. 

A possibility would be to cascade through failure_routes:

failure_route[1] {
  t_on_failure(2); # if this fails, try 2
  ...    
}

failure_route[2] {
  t_on_failure(3); # if this fails, try 3
  ...    
}

etc.

Other possibilty I thought of would be 

route[1] {
 ...
 setflag(1); # state == 1
 t_relay();
 ...

failure_route[1] {

  if (isflagset(1)) {
       # try 2
       resetflag(1); setflag(2);
       break;
  };
    if (isflagset(2)) {
       # try 3
       resetflag(2); setflag(3);
       break;
  };
...

  
-jiri

At 03:21 AM 7/14/2004, Michael Przybylski wrote:
>I was thinking along the lines of using the textops.so search() function.
>
>Will that let me see what "Contact" headers have already been appended as
>branches?
>
>Best regards,
>Mike Przybylski
>
>On Wed, 14 Jul 2004, Jiri Kuthan wrote:
>
>> A possibility to keep status would be to use flags -- a poor variable
>> substitute till support for variables appears.
>>
>> -jiri
>>
>> At 10:14 PM 7/13/2004, Michael Przybylski wrote:
>> >Hello everyone,
>> >
>> >        I've got a recursing failure_route block that I'm trying to use
>> >for voice over IP gateway failover.
>> >        The recursion bit works without any problem, but I could really
>> >use some hints on examining the branches appended by previous calls to the
>> >failure route so that it can know when to stop.
>> >
>> >        Here's the pseudo-code version of what I'm trying to do.
>> >
>> >if(examing previously appended branches shows
>> >   IP of last-chance gateway already there){
>> >        give up;
>> >}
>> >
>> >        Any suggestions would be greatly appreciated.
>> >
>> >Best regards,
>> >Mike Przybylski
>> >
>> >_______________________________________________
>> >Serusers mailing list
>> >serusers at lists.iptel.org
>> >http://lists.iptel.org/mailman/listinfo/serusers
>>
>> --
>> Jiri Kuthan            http://iptel.org/~jiri/
>>
>
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--
Jiri Kuthan            http://iptel.org/~jiri/