[pypy-commit] extradoc extradoc: Added my outline of a Stackless story.

[ctismer]

Author: Christian Tismer <tismer at stackless.com>
Branch: extradoc
Changeset: r4154:46e68ae728c3
Date: 2012-03-20 01:14 +0100
http://bitbucket.org/pypy/extradoc/changeset/46e68ae728c3/

Log:	Added my outline of a Stackless story. Will discuss changes and
	sharing of talks tomorrow on pypy-sync

diff --git a/talk/ep2012/stackless/abstract.rst b/talk/ep2012/stackless/abstract.rst
new file mode 100644
--- /dev/null
+++ b/talk/ep2012/stackless/abstract.rst
@@ -0,0 +1,41 @@
+The Story of Stackless Python
+=============================
+
+This talk gives a good overview of the status of Stackless Python:
+
+It's history from the beginning, it's current status and it's future
+development to be expected. A discussion and comparison with similar approaches
+like Greenlet, Eventlet and how they relate is also included.
+
+Stackless Python 1.0 was started in 1998 as an implementation of true
+continuations, with all implied complications.
+
+In 2002, Stackless 2.0 was born, a complete rewrite. Continuations were
+abandoned in favor of the much easier to comprehend tasklets - one-shot
+continuations that could resume their current state just once, like
+Coroutines.
+
+In 2004, Stackless 3.0 was created, which merged the 2.0 features with
+a new concept: so-called "Soft-Switching", which made the Pickling of Program State" possible.
+
+As a consequence, a few recent application make solely use of Program State
+Pickling, which changes the purpose of Stackless Python quite a bit. One example
+of this is the "Nagare Web Framework" which will be shown in examples.
+
+In the light of the popularity of a Stackless spin-off, called "Greenlet",
+the concept of a new Stackless branch will be depicted:
+Stackless, written as a pure extension module on top of Greenlets, which
+includes State Pickling - a feature that seemed to be impossible to implement
+without changing CPython.
+
+But the impossible and ways to get around it was always a major topic in this
+project, which is going to augment what Stackless on PyPy already can do.
+
+Christian Tismer, creator of Stackless Python
+
+Perhaps with Armin Rigo as a guest, talking about Stackless status in PyPy.
+Otherwise, I will insert this myself.
+
+cheers -- Chris
+
+