[libvirt] PATCH: 15/25: Prohibit non-threadsafe POSIX apis
Jim Meyering
jim at meyering.net
Mon Jan 19 18:38:40 UTC 2009
"Daniel P. Berrange" <berrange at redhat.com> wrote:
> There are a huge list of functions in POSIX which are not
> safe to use from multiple threads currently. I generated
> the list by looking at all libc symbol exports for variants
> which have a parallel _r symbol.
>
> nm -D --defined-only /lib/libc.so.6 \
> | grep '_r$' \
> | awk '{print $3}' \
> | grep -v __ \
> | grep -v qsort \
> | grep -v readdir \
> | sort \
> | uniq \
> | sed -e 's/_r//'
Nice. ACK.
FYI, I get the identical list on x86_64 F10 with this:
nm -D --defined-only /lib64/libc.so.6 \
| perl -nle '/ ([^_]\w+)_r$/ and print $1'|grep -vE 'qsort|readdir'
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