Re: [tipc-discussion] Query on PORT

[Suryanarayana G. <sur...@or...>]

Hi Erik,
Comments inline.

Regards
Surya

On Thursday 25 October 2012 02:20 PM, Erik Hugne wrote:
> You can subscribe for published names, but there's no API to query 
> specific ports.
[Surya] My simple requirement is, if i have two processes A and B with 
one TIPC socket created in each process. A knows B port through other 
ways and B also knows A's as well. In some cases we want to query 
whether PORT of B process exists or not(similar is the case with the A 
as well). We can get it from the "tipc-config -nt", but i am interested 
in getting it programmatically.  "getpeername" what is this mainly for?
>
> A "stupid" solution to check for local ports would be to call 
> tipc-config -p from your program with 'exec' and grep for the port 
> you're interested in... :)
>
> Can you explain why you need this?
[Surya] In our product the processing of TIPC_WITHDRAWN events and 
message send to the same port are done in different threads. There may 
be a case where the send is attempted first(by this time already B has 
gone down), but the event is already present in TIPC WITHDRAWN still not 
processed. So in this case we want to avoid the sendto call as well.
> Do you need to query ports on remote nodes? or only on the local node?
[Surya] I would be interested in both.
>
> //E
>
>
> On 10/25/2012 10:18 AM, Suryanarayana Garlapati wrote:
>> Hi,
>> In TIPC is there a API through which we can check for existence of a 
>> PORT?
>>
>> Regards
>> Surya
>>
>>
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