[Mono-dev] GC Safe Points by Polling

[Sanjoy Das]

I've attached a patch that implements GC safe points via polling. I was
wondering if I could get some feedback since my GSoC work shall largely
be based on the same code.

Simply put, the idea is to stop all threads first and then advance the
ones running managed code to the next nearest safe point.

Though the patch has not been tested very extensively, I can verify that
it

 * Passes all tests run by 'make check' in the project root.
 * Passes all the mscorlib tests.
 * Causes a < 2 % performance penalty with pystones / ironpython. 

The patch also includes certain other seemingly unrelated changes. They
are required for the project to build successfully.


-- 
Regards,

Sanjoy Das
http://playingwithpointers.com
http://playingwithpointers.com/custom/public_key.txt
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