K 10
svn:author
V 7
glebius
K 8
svn:date
V 27
2017-09-14T18:05:54.375615Z
K 7
svn:log
V 590
Fix locking in soisconnected().

When a newborn socket moves from incomplete queue to complete
one, we need to obtain the listening socket lock after the child,
which is a wrong order.  The old code did that in potentially
endless loop of mtx_trylock().  The new one does only one attempt
of mtx_trylock(), and in case of failure references listening
socket, unlocks child and locks everything in right order.  In
case if listening socket shuts down during that, just bail out.

Reported & tested by:	Jason Eggleston <jeggleston llnw.com>
Reported & tested by:	Jason Wolfe <jason llnw.com>

END