a couple of questions about tcpserversink callbacks

[Andres Gonzalez]

Hi,
I am using tcpserversink for some streams feed by appsrc and I am having
issues with the callbacks.

A tcpserversink signal is defined as follows:

"client-removed" :  void user_function (GstElement* object,
                                          gint arg0,
                                          GstMultiHandleSinkClientStatus
arg1,
                                          gpointer user_data);

However, I cannot find where GstMultiHandleSinkClientStatus is defined. I
have built and installed release 1.8.0 but it appears that a header file
that defines it was not installed.  When I define my client-removed callback
the compile fails because GstMultiHandleSinkClientStatus is undefined. The
/tcp subdirectory in the plugins-base tree references it once, but does not
appear to defined it.

Question: Where, or which header file, is this type defined?

Next is perhaps a basic glib question that I should know, so please forgive
my ignorance here. But the gst-inspect output for tcpserversink lists
several "Element Actions"  

Question: What are "Element Actions" and how are they different from
"Element Signals"?

They appear to be some kind of callbacks since the function name is
user-defined. So I am not sure how to use them.

Question: Are there any examples available of how to used "Element Actions"?
Question: Are there any examples available of how to use tcpserversink in
general?  

The source tree for plugin-base has some example code under /tests/examples
but there are none for any of the tcp elements. I recognize that tcp
programming is rather basic but it would be nice to have some guidance on
how to use these "Element Actions"

Thanks,
-Andres



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