Hello.
As this is my first post I will try to introduce myself as requested in
the welcome email. If you aren't interested in my person, just continue
reading at the next paragraph. I'm a student from Vienna/Austria. I
attend what would match high school in the United States. I have been
writing Python for about 3 years now and have just began to dig into the
implementation of CPython.
Now to my real question. I have noticed that PyThread_acquire_lock
swallows all signals with pthread using sems. Looking at the source code
it appears that this is intended, but I cannot see the reason for that.
It seems the pthread sem implementation is the only one doing so. Can
any of you tell me the reason why it swallows signals?
I have already prepared a patch that introduces a new _noswallow
function if sem are used and uses this in threadmodule.c. But if there
isn't any real reason for it to swallow exceptions, I think it would be
wisest to change that.
Best regards,
Florian Mayer
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