Author :
Nick Mathewson
Date :
2012-02-10 15:55:15
Hash :a1c042bf Message :Infrastructure for using faster/fewer syscalls when creating sockets
Linux provides some features that allow avoiding extra calls to
fcntl when creating new nonblocking/close-on-exec sockets, so
we can add wrapper functions to emulate those when they are not
available.
Additionally, even when we are emulating those functions, we can
take a fast path that cuts our fcntl calls in half: we don't need to
look up the previous value of a file's flags when we have just
created it.
Nick Mathewson