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Refactors the
recv
andsend
and related functions, including theio::Read
andio::Write
implementations.Also changes the
Socket::new
,Socket::pair
andSocket::accept
functions to set close-on-exec flag on Unix, on Apple platformsSOCK_NOSIGPIPE
and on Windows the socket is made non-inheritable. NewSocket::new_raw
,Socket::pair_raw
andSocket::accept_raw
functions are added which do not set the above flags. This work as done by @de-vri-es in #117.