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Perihal:Python-Dev Digest, Vol 76, Issue 83
Terkirim:10 Nov 2009 03:00
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Today's Topics:
1. Re: Retrieve an arbitrary element from asetwithoutremoving it
(Nick Coghlan)
----------------------------------------------------------------------
Message: 1
Date: Tue, 10 Nov 2009 20:51:19 +1000
From: Nick Coghlan <[email protected]>
To: "Martin v. L?wis" <[email protected]>
Cc: [email protected]
Subject: Re: [Python-Dev] Retrieve an arbitrary element from
asetwithoutremoving it
Message-ID: <[email protected]>
Content-Type: text/plain; charset=ISO-8859-1
Martin v. L?wis wrote:
>> I'm not sure, but isn't that thread-unsafe?
>
> You are right; it's thread-unsafe.
>
> I would fix it by catching the RuntimeError, and retrying. Given the
> current GIL strategy (including proposed changes to it), it won't happen
> two times in a row, so the number of retries would be bounded.
It's also one of the major reasons for not sharing mutable containers
between threads if you can avoid it (and serialising access to them if
you can't)
Cheers,
Nick.
--
Nick Coghlan | [email protected] | Brisbane, Australia
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