From: rick.jones2@hp.com   
      
   Jorgen Grahn  wrote:   
   > On Wed, 2 Sep 2009 20:17:27 +0000 (UTC), Rick Jones    
   wrote:   
   > > Jorgen Grahn  wrote:   
   > >> OK; I just thought TCP was such a protocol. Making read()s fail and   
   > >> telling the peer on the other side that the socket RX buffer is full   
   > >> seemed right to me -- given that I thought shutdown() on a TCP   
   > >> socket kind of transformed it from two octet streams into just one.   
   > >   
   > > Indeed, TCP is supposed to support "simplex" operation where data can   
   > > flow in only one direction.  I seem to recall some sort of ancient   
   > > remote job entry mechanism using that feature, but I cannot recall its   
   > > name, nor anything more recent which actually used the simplex   
   > > feature.   
      
   > And if I read between the lines, you believe that this shows that   
   > using TCP in simplex mode is almost always a bad idea, right?   
      
   No, I simply mean to imply that it is rare.   
      
   rick jones   
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