Ivykis: add uring poll method support #5312
Merged
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Experimental integration of the uring-based poll method support.
Currently this must be activated directly by the user either using IV_EXCLUDE_POLL_METHOD or IV_SELECT_POLL_METHOD.
Partially solves #5019, partially because this one is not a huge performance enhancement on regular files as it is still a poll that always signals file readability, we still need a much better (kqueue-like) solution e.g. using inotify.
Doc PR syslog-ng/syslog-ng.github.io#185
Depends on #5308