Instead of using local implementations for the queue.h macro,
wrap the system provided queue.h and then adding missing
features as needed.
The idea is that Suricata when integrated with another library
that includes sys/queue.h can look at the same source of truth
for these macros.
But not all operating systems include a queue.h with the same
features, and some don't include it at all, like Windows. So
on Windows this will be a full implementation of all the queue.h
features Suricata needs.
This patch introduces a limitation in term of number of
expectations attached to one IPPair. This is done using
a circle list so we have a FIFO approach on expectation
handling.
Circleq list code is copied from BSD code like was pre existing code
in queue.h.
TAILQ_FOREACH macro was not safe for element removal as it was
accessing the next element in case of a free. This patch is inspired
by Linux list handling and provide a new macro TAILQ_FOREACH_SAFE.
This macro is removal safe and only differs by a last argument being
a temporaty pointer to an element.