[Live-devel] Groupsock handling in OnDemandServerMediaSubsession.cpp

[Ross Finlayson]

>So, as I really need to have the possibility to use free
>ports only and I see there is no big interest for this for the
>existing library

Now I'm confused.  I thought you had identified an issue (in the code 
in "OnDemandServerMediaSubsession.cpp" where we check that a 
newly-created 'groupsock' - with no explicitly-specified port number 
- ends up getting an even-numbered port) that might affect *every* 
user of the library (if they're running a unicast RTSP/RTP 
server).  If that's the case, then we can't make the use of the 
SO_REUSE_* flags a compile-time option (because, in general, for 
other uses of 'groupsock's, we want the SO_REUSE_* flags set).

If, however, this is something that - for whatever reason - affects 
your particular application only, then I'm not going to make a change 
to the released code just for this.

So the real question is: Is there, or is there not, a real problem 
with the way that the code in "OnDemandServerMediaSubsession.cpp" 
currently works.  If there is (although I, personally, have never 
seen the current code fail), then perhaps the best solution would be 
to have a special new Groupsock constructor just for this case: I.e., 
for creating one that ends up using an arbitrary, but even-numbered 
port.  This special new constructor could then omit setting the 
SO_REUSE_* flags, if that's necessary to make it work (although I'm 
not convinced of that either).


	Ross Finlayson
	Live Networks, Inc. (LIVE555.COM)
	<http://www.live555.com/>