tree 4eb09b125cbe4d23c384fa3b04f2ca65bda8478a
parent 3b7bc3e38b7c3e889ca77415cb6b5d91e92cc0c4
author Christopher Faulet <cfaulet@haproxy.com> 1573639952 +0100
committer Christopher Faulet <cfaulet@haproxy.com> 1631267870 +0200

BUG/MINOR: stream: Don't release a stream if FLT_END is still registered

When at least one filter is registered on a stream, the FLT_END analyzer is
called on both direction when all other analyzers have finished their
processing. During this step, filters may release any allocated elements if
necessary. So it is important to not skip it.

Unfortunately, if both stream interfaces are closed, it is possible to not
wait the end of this analyzer. It is possible to be in this situation if a
filter must wait and prevents the analyzer completion. To fix the bug, we
now wait FLT_END analyzer is no longer registered on both direction before
releasing the stream.

This patch may be backported as far as 1.7, but AFAIK, no filter is affected
by this bug. So the backport seems to be optional for now. In any case, it
should remain under observation for some weeks first.

(cherry picked from commit 6fcd2d32805d949672babae8ca70806f8b308870)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>