If I wait on select (or kqueue event) to signal the
arrival of (UDP) data before calling recvfrom, is that going to cost an
extra memory copy, versus having the socket block on recvfrom?
No. With sockets (at least on Mac OS X), you always get a copy.
S+E
--
Quinn "The Eskimo!" <http://www.apple.com/developer/>
Apple Developer Technical Support * Networking, Communications, Hardware
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