Implement zerocopy writes for the encrypted protocol #385
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With Python 3.12+ and later `transport.writelines` is implemented as [`sendmsg(..., IOV_MAX)`](python/cpython#91166) which allows us to avoid joining the bytes and sending them in one go. Older Python will effectively do the same thing we do now `b"".join(...)`
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With Python 3.12+ and later
transport.writelinesis implemented assendmsg(..., IOV_MAX)which allows us to avoid joining the bytes and sending them in one go.Older Python will effectively do the same thing we do now
b"".join(...)