shims: fix TAILQ_CONCAT() edge cases #496
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This needs to set the `te_next` of the last element in `head1` and also handle the case where `head1` is empty. This fixes a hang in the dispatch_context_for_key test on Windows because the the queue-specific list was getting corrupted in `_dispatch_queue_specific_head_dispose()`.
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@swift-ci please test |
ktopley-apple
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Jun 12, 2019
rokhinip
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Nov 5, 2021
shims: fix TAILQ_CONCAT() edge cases Signed-off-by: Kim Topley <[email protected]>
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This needs to set the
te_nextof the last element inhead1and alsohandle the case where
head1is empty. This fixes a hang in thedispatch_context_for_key test on Windows because the the queue-specific
list was getting corrupted in
_dispatch_queue_specific_head_dispose().