Re: use Devel::Pointer in threads

For the why:

> Can someone help to explain how this happen?

Perl's model for threading is to clone the interpreter with the data. It's allowing thread-safety by emulating forking.

The shared data is explicitly tunneled between the threads.

New data - including their refs - doesn't exist in other threads unless they are shared.

Hence using a backdoor like Devel::Pointer to the memory address can't work.

Cheers Rolf
_{(addicted to the Perl Programming Language :)

Wikisyntax for the Monastery}

Comment on Re: use Devel::Pointer in threads

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Re^2: use Devel::Pointer in threads by exilepanda (Friar) on Apr 05, 2021 at 01:08 UTC
Thanks but this didn't explain why Data::Dumper can actually fetch what's inside, but I can't when explicitly write to `print $Deep->{B}`. Also, how a hash can have same key exists when Dump.	[reply] [d/l]