Does a pipe take a socket ... ?

[Oliver Fromme]

Marc G. Fournier wrote:
 > For those that remmeber the other day, I had that swzone issue, where I ran out 
 > of swap space?  I just about hit it again today, swap was up to 99% used ... I 
 > was able to get a ps listing in, and there were a whack of find processes 
 > running ...
 > 
 > Now, I think I know which VPS they were running in, so that isn't a problem ... 
 > and I suspect that the find was just part of a longer pipe ... I'm just curious 
 > if those pipes would happen to use up any of those sockets that are 
 > 'evaporating', or is this totally unrelated to sockets?

In FreeBSD, pipe() is implemented with the socketpair(2)
system call.  Every pipe uses two sockets (one for each
endpoint).

Best regards
   Oliver

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