consolidation of NSMessagePort, NSSocketPort and GSTcpPort

[Derek Zhou]

Hi,
The code of NSMessagePort, NSSocketPort and GSTcpPort are 90% identical, so 
there is some redundancy here. Anyone wants to consolidate the three? Maybe 
make a base class called GSSocketPort (or something like that) and make 3 
small classes inheriting from it?
I know NSMessagePort is unix domain socket and GSTcpPort is tcp socket. What's 
the difference between NSSocketPort and GSTcpPort? The code looks almost 
exactly the same to my untrained eyes.
Derek