Defines the state that the handler is in.
OnixS.IceImpactMulticastPriceFeedHandlerNet-4.7.2_x64 (in OnixS.IceImpactMulticastPriceFeedHandlerNet-4.7.2_x64.dll) Version: 220.127.116.11
Handler is stopped.
Handler is stopping.
Handler is started but no data processing is performed yet.
Download of security definition messages is started.
Download of security definition messages is finished.
The correct books state is lost.
Handler switches to this state when it joins the market and the
initial books state is built from multicast messages or when the
message sequence number gap is detected, so the book state should
be re-built from multicast messages again.
It should be assumed at this point that all books maintained
in the Handler may no longer have the correct, latest state
maintained by ICE, so they are cleared.
The latest books state is restored.
Handler switches to this state when the the latest books state
is restored (all snapshot data is retrieved).
It should be assumed at this point that all books maintained in
the Handler have the correct, latest state maintained by ICE.