[reSIProcate] REPOST: Help: How to do Subscription over TCP

[Elizabeth Clark]

Anyone using the DUM over TCP?

-----Original Message-----
From: Elizabeth Clark [mailto:elizabeth.clark at bridgewatersystems.com] 
Sent: Tuesday, December 07, 2004 5:07 PM
To: resiprocate-devel at list.sipfoundry.org
Subject: [reSIProcate] Help: How to do Subscription over TCP


Hi,
I'm using the DUM to perform a subscription over TCP and I can't get it to
work.The request message is received but the response does not get sent. Can
someone tell me if I'm doing something wrong?
 
I'm using a SUBCRIBE request. This is received successfully and the
newSubscription callback is invoked. Inside my callback is an accept
(ServerSubscriptionHandler::accept).  This creates a 200 OK response which
is placed passed to the SipStack and makes it to the txFifo of the
appropriate transport. Next, the ConnectionManager passes the response
manager to the appropriate Connection.  Then, the Connection fails to send -
it appears the socket is not set up for writing.
This happens over 3 process() calls with calls to buildFdSet() in between:
 
1 process():
    new TCP connection established
    new subscription callback invoked
    call accept, 200 ok response placed in message queue
 
buildFdSet() --> read-enable new TCP socket
 
2 process():
     get response from message queue and pass to transport txFifo
 
buildFdSet() --> read-enable new TCP socket (no write-enable done since
there are no connections with a queue of messages to send)
 
3 process():
    processAllWriteRequests---> get the message and pass it to the
connection object;
    connection object adds self to the Connection Manager write list
    processSomeWrites---> get the connection from the Connection Manager
write list and
    perform the actual write...fails, socket not write-enabled.
 
Thanks
Liz



 

Elizabeth Clark                                 
Bridgewater Systems Corporation                
Phone :  (613) 591-9104 x2776
E-mail :  <mailto:elizabeth at bridgewatersystems.com>
mailto:elizabeth at bridgewatersystems.com

 

 

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