pcre.h pcre_compile.c pcre_exec.c
mjs at apple.com
Sat Jan 7 20:50:16 PST 2006
On Jan 6, 2006, at 5:28 PM, Darin Adler wrote:
> These calls are thread-safe on both Mac OS X and Windows -- both
> those platforms use per-thread globals for these calls.
> On Mac OS X, we also have the _r variants, but they are no more or
> less thread-safe (although it's more elegant to not use the
> globals). If there's an important platform that has the _r variants
> but a non-thread-safe localtime and gmtime we can add conditionally
> compiled code since Windows does not have the _r variants.
These aren't threadsafe on Linux (Maks checked the glibc source
code). And the _r variants are easy to implement in terms of the
windows _s variants (or even in terms of the vanilla variants, given
that they are threadsafe) on Windows. Looking at the OS X
implementation the _r versions also look more efficient, though
probably not enough to matter in the real world.
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