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

[Elizabeth Clark <elizabeth.clark@xxxxxxxxxxxxxxxxxxxxxx>]

Title: Message

Anyone using the DUM over TCP?

-----Original Message-----
From: Elizabeth Clark [mailto:elizabeth.clark@xxxxxxxxxxxxxxxxxxxxxx]
Sent: Tuesday, December 07, 2004 5:07 PM
To: resiprocate-devel@xxxxxxxxxxxxxxxxxxx
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@xxxxxxxxxxxxxxxxxxxxxx