There used to be a poll tag on Stack Overflow, which covered the poll family of I/O functions on unix-like systems.
This tag has disappeared, and cannot be re-created because the polls tag already exists.
Please re-create the tag (here is an example of a question that should have been tagged poll and not polls).
Since the tag polls is rather unnatural on this question, I suspect that this was the result of a bad merge. This is unfortunate: we have a bunch of legitimate questions that were unwittingly thrown together with a tag that signals questions that should be deleted. Developers: is it possible to undo this merge?
Arguably, poll is prone to confusion. Would poll-function be a reasonable tag name? Any other suggestion?
There are many valid functions named 'poll' to which this tag could be applied. I suggest that the most common and best application of the tag would be the Posix function poll(3) (link), but I don't think it's sufficient to call it poll-function because no one reads the tag wikis.
Therefore, I suggest that the new tag name be posix-poll. This would be difficult to confuse with anything else, and other languages or APIs with a function by this name can have their own tag.