work around portability issue on FreeBSD, in which the key returned from #19577
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pthread_key_create can be 0.
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Thanks for the PR! Would it be possible to just +1 to all keys received instead of creating two keys? |
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As a practical matter, I think that would work on any sane platform (though it would impose a run-time cost of subtracting 1 from the stored value each time you try to actually use the key). From a pure portability standpoint, does the POSIX standard allow the created key to be -1? I think it does, which would mean the portability issue still exists (though it's much more difficult to imagine a platform that would actually return -1). To my mind, a better solution involves not having a reserved value for the key, though I'm not sure how that would work... |
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Sounds good to me, thanks @aidancully! |
alexcrichton
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pthread_key_create can be 0. addresses issue rust-lang#19567.
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pthread_key_create can be 0.
addresses issue #19567.