Multi-threaded apps that do not allocate per-thread workers
(multi-thread workers vcl config) ended up sharing worker state like the
select bitmaps and time among others. Those should not be shared.
To avoid this, make ldp workers thread local variables.
Type: fix
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Iabdcc413991dbaafff33f24187f7053a9c5a1270