...Can Also Come Out (IOutputChannel)

What Goes In... (IInputChannel)

Nicholas Allen's Indigo Blog — Tue, 14 Mar 2006 18:56:15 GMT

Last week I introduced the different kinds of channel shapes that are available with WCF.&nbsp; This...

It Makes the WWW Go Round, Part 1: IRequestChannel

Nicholas Allen's Indigo Blog — Fri, 17 Mar 2006 19:05:32 GMT

The final WCF message exchange pattern that I'm going to look at is the request-reply version of two-way...

It Makes the WWW Go Round, Part 2: IReplyChannel

Nicholas Allen's Indigo Blog — Mon, 20 Mar 2006 19:12:29 GMT

After a short break, let's continue looking at the request-reply message pattern.&nbsp; In the previous...

It Makes the WWW Go Round, Part 3: IRequestContext

Nicholas Allen's Indigo Blog — Tue, 21 Mar 2006 19:03:36 GMT

The final player in the drama between IRequestChannel and IReplyChannel is the link connecting requests...

re: ...Can Also Come Out (IOutputChannel)

Dave — Tue, 21 Mar 2006 23:46:16 GMT

Thanks for the work on your blog. It really provides some great insight into WCF's not so beaten path.

One question, what is the timeout specifically waiting for on a TCP IOutputChannel's send? Is it the connection establishment, it seems from my naive eye that it blocks until a return has been executed from the intended one way service.

Thanks

re: ...Can Also Come Out (IOutputChannel)

Nicholas Allen — Wed, 22 Mar 2006 04:21:28 GMT

At the transport level, the timer for TCP send is typically going to start a little before the message is encoded and stop a little after shoving all of the data into the underlying buffers. The end point is actually a bit nebulous since we'll be in the process of cleaning up after the send but not have finished cleanup at every level of the stack. Once you start layering channels on top of the transport, they're going to start imposing their own interpretation of what it means for the operation to be finished.

A good way to explore the details here is to block during a particular operation (either with the debugger or by writing a custom implementation). Then, you can see where timeout aborts occur. You'll get the original exception from the innermost layer that contains the operation.

Creating Channels for Talking

Nicholas Allen's Indigo Blog — Wed, 22 Mar 2006 19:58:14 GMT

When we last left the IChannel interface, there was a brief introduction of the concept of a channel...