On 07:09 am, ar...@tunes.org wrote:
Hi,
A follow-up to the blog post about Software Transactional Memory (STM)
at http://morepypy.blogspot.com/ .
[snio[
So, all this to say: 8 years later, I implemented that on CPython:
https://bitbucket.org/arigo/cpython-withatomic/overview (on the 2.7
branch). It is sadly a fork of CPython instead of a C extension
module because it needs to access and change a few things in ceval.c.
The total patch is 190 lines, and that's because I need a new type
(very verbose). It implements "thread.atomic", which you use in a
"with" statement. So you write "with atomic:" and you get precisely
the simple case described here:
http://en.wikipedia.org/wiki/Software_transactional_memory#Proposed_language_support
.
Fwiw it's probably also a minimal patch to PyPy. Sorry for being
mostly off-topic for once...
Very cool. Thanks for the summary.
Jean-Paul
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