[cairo] Thoughts on thread safety of user-data

Carl Worth cworth at cworth.org
Wed Jul 30 15:50:13 PDT 2008

On Thu, 2008-07-24 at 14:22 -0400, Behdad Esfahbod wrote:
> But then again, Owen keeps telling me that double-check locking is
> dangerous and I keep overlooking the reason.

Most descriptions of the problem focus on Java, but it's not a
Java-specific issue. This page describes a fix for broken double-checked
locking in C++ code by using a processor-specific memory barrier



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