|Perl Monk, Perl Meditation|
Re^4: is ||= threadsafe?by BrowserUk (Pope)
|on Oct 25, 2010 at 17:29 UTC||Need Help??|
||= happens in Perl code, yet it's not thread safe.
You're still not getting it.
There is no purpose in documenting the thread-safety of every opcode--or internal operations--because they are all completely covered by those two simple tenets
And that is what sets iThreads apart, and above, any other shared-state concurrency implementation. You use it exactly as if it was non-threaded, with no shared-state, even for the nasties of interpreted language threading--fat variables & closures. Except where you need shared-state, then you mark it explicitly and take the appropriate precautions.
Sure, the implementation could be more efficient--of time and memory. And the user could be given finer-grained control. But for the most part, inventing a model that allows so many pre-threading modules to just work inside threads is a remarkable achievement. Even the majority of non-Pure Perl modules function perfectly within iThreads, and that's truly remarkable, and no accident.
Artur Bergman should be lauded.
(*)For the pedants: External state excluded.
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