On Sat, 7 Nov 2009, Joshua Kwan wrote:
This patch (should be applied on top of threading-v3.diff.gz) fixes the
configure logic for evaluating whether we have an appropriate threadsafe
resolver. The changes to hostthre.c have not yet been done yet.
I'm a bit curious on your talk and work on thread-safe resolvers.
If a getaddrinfo() or a gethostbyname_r() implementation anywhere is unsafe,
we already should have problems since libcurl is claimed to be thread-safe
already when using those functions and it has used them for many years without
problems.
Can anyone mention a getaddrinfo() or a gethostbyname_r() implementation that
isn't thread-safe?
The only systems that are hard to detect - to my recollection of this - are
the ones that provide a thread-safe gethostbyname() since it isn't that easy
to make a distinction, But in libcurl we prefer gethostbyname_r() anyway and
beyond that we rely on specific knowledge about for example that Window's name
resolver is thread-safe still.
--
/ daniel.haxx.se
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