Questions about codes

[zsystm]

Hello,

I came across the meter-pov while searching for Go implementations of HotStuff and have been doing a brief analysis. I’d like to contribute if there are areas where I can help.

While reading through the code, I encountered some terms that I don’t quite understand, and I’d like to ask a few questions. I couldn’t find any hints in the meter-io documentation.

Could you clarify the meaning of the following terms: KBlock, MBlock, and SBlock? I’m not sure what K and M stand for.

Additionally, all the ConsensusMessage implementations have the prefix PM (e.g., PMProposalMessage). What does PM represent?

Thank you.