tree 8e055c318da4eca5f4032bdfdfd9b7086e6f6751
parent 4815c8cbfe7817939bcac7adc18fd9f86993e4fc
author Olivier Houchard <ohouchard@haproxy.com> 1517418449 +0100
committer Willy Tarreau <w@1wt.eu> 1517842942 +0100
encoding latin1

MEDIUM: fd/threads: Make sure we don't miss a fd cache entry.

An fd cache entry might be removed and added at the end of the list, while
another thread is parsing it, if that happens, we may miss fd cache entries,
to avoid that, add a new field in the struct fdtab, "added_mask", which
contains a mask for potentially affected threads, if it is set, the
corresponding thread will set its bit in fd_cache_mask, to avoid waiting in
poll while it may have more work to do.