[Twisted-Python] Async-pep (again)

[exarkun at twistedmatrix.com]

On 10:26 am, screwtape at froup.com wrote:
>On Thu, Jul 14, 2011 at 07:05:38PM +1000, Tim Allen wrote:
>>- You might also want to create an optional Transport method to wrap 
>>the
>>   sendfile(2) and/or splice(2) functions.
>
>I suggested this not knowing whether Python would ever grow support for
>sendfile(), since it seemed like the sort of thing that
>performance-oriented async-io frameworks might want to set up with
>ctypes or similar. However, I've just discovered that os.sendfile() 
>will
>be in Python 3.3:
>
>    http://docs.python.org/dev/library/os.html#os.sendfile
>
>Since your PEP has a 3000-series number anyway, os.sendfile() might
>potentially be quite useful.

Since this non-trivially complicates the implementation of a transport, 
I suggest that it be an optional extension proposed separately.

Jean-Paul