From: Tony Arcieri <tony.arcieri@...>
Date: 2012-06-12T01:00:56+09:00
Subject: Re: Is "a,b=c,d" atomic? or do I need a Mutex?

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On Mon, Jun 11, 2012 at 1:00 AM, I=F1aki Baz Castillo <ibc@aliax.net> wrote=
:

> I do agree that, while in Ruby land, I should use a mutex (not
> required right now since Array#<< and a,b=3Dc,d are atomic


Note that Array#<< isn't atomic, it's just that the GIL prevents contention
between threads so it never becomes a problem (until you try to use a Ruby
implementation without a GIL)

--=20
Tony Arcieri

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<div class=3D"gmail_quote">On Mon, Jun 11, 2012 at 1:00 AM, I=F1aki Baz Cas=
tillo <span dir=3D"ltr">&lt;<a href=3D"mailto:ibc@aliax.net" target=3D"_bla=
nk">ibc@aliax.net</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote=
" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

I do agree that, while in Ruby land, I should use a mutex (not<br>
required right now since Array#&lt;&lt; and a,b=3Dc,d are atomic</blockquot=
e><div><br></div><div>Note that Array#&lt;&lt; isn&#39;t atomic, it&#39;s j=
ust that the GIL prevents contention between threads so it never becomes a =
problem (until you try to use a Ruby implementation without a GIL)</div>

<div>=A0</div></div>-- <br>Tony Arcieri<br><br>

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