Re^5: Hanging Threads

I tried running the command you asked for the threads version, it doesn't produce any output. Thoughts on that one?

Um. It probably means you are using a core delivered version of threads? Which version of Perl are you using?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

"Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."

Comment on Re^5: Hanging Threads

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Re^6: Hanging Threads by WalkingZero (Sexton) on Aug 18, 2007 at 22:06 UTC
v5.8.8 built for i486-linux-gnu-thread-multi	[reply]
Re^7: Hanging Threads by BrowserUk (Patriarch) on Aug 18, 2007 at 22:30 UTC
If you have the interest in discovering more, given that you already have a solution, then you could try installing the latest CPAN version (1.63) and see if that also cures the problem with using `threads->self()`. I have 1.63 installed and it's not an easy task to back that out, but if that cures the problem for you it's probably safe to conclude it is a old problem that has already been fixed. Strange that I never encountered it in the couple of years that I've been using 5.8.6/5.8.8, but then I always use `threads->self->tid` for identification purposes and have never had reason to obtain or reference a thread handle from within it's own thread procedure. As I mentioned, there is a certain logic to it. If the thread procedure contains a reference to itself, then you have a circular reference, and that is a well-known problem that prevents destructors being called. I wonder how they cured it? The usual method is to weaken the reference (artificially drop the reference count), but looking inside 1.63 they appear to mortalise before returning it--which I thought meant that the ref count was increased? But then, there is a bunch of the internal shenanigans that is tantamount to black magic as far as my understanding goes. Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. "Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."	[reply] [d/l] [select]


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