Antoine Pitrou <[EMAIL PROTECTED]> added the comment:
Yes indeed. We could use an RLock to avoid the problem but RLock's are
damn slow since they are written in pure Python (see #3001). Rewriting
the critical parts of RLock (constructor, acquire(), release(),
__enter__(), __exit__()) in C should not be too complicated, would you
want to do it? :)
> Solution: use C implementation of Lib/io.py (from Python 2.6) to avoid
> ceval hook?
I guess it's out of question. However, Buffered{Reader,Writer,Random}
should be rewritten in C one day, it is necessary for speed. Then the
problem will vanish since a lock will only need to be taken when
releasing the GIL, that is not when Python code is being interpreted.
----------
nosy: +pitrou
priority: -> high
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Python tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue3618>
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