Struct NewView

pub struct NewView {
    pub chain_id: ChainID,
    pub view: ViewNumber,
    pub highest_pc: PhaseCertificate,
}

Message sent by a replica to the leaders of the next view on view timeout to make them aware of the replica’s highest_pc.

NewView and view synchronization

In the original HotStuff protocol, the leader of the next view keeps track of the number of NewView messages collected in the current view with the aim of advancing to the next view once a quorum of NewView messages are seen. This behavior implements a rudimentary view synchronization mechanism, which is helpful in the original HotStuff protocol because it did not come with a “fully-featured” BFT view synchronization mechanism.

HotStuff-rs, on the other hand, does include a separate BFT view synchronization mechanism (in the form of the Pacemaker module). Therefore, we deem this behavior unnecessary and do not implement it.

Fields

chain_id: ChainID

ChainID of the block tree that highest_pc.block is part of.

view: ViewNumber

The view that the replica sending this NewView is exiting.

highest_pc: PhaseCertificate

The sending replica’s highest_pc.

Trait Implementations

impl BorshDeserialize for NewView

where ChainID: BorshDeserialize, ViewNumber: BorshDeserialize, PhaseCertificate: BorshDeserialize,

fn deserialize_reader<R: Read>(reader: &mut R) -> Result<Self, Error>

fn deserialize(buf: &mut &[u8]) -> Result<Self, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSerialize for NewView

where ChainID: BorshSerialize, ViewNumber: BorshSerialize, PhaseCertificate: BorshSerialize,

fn serialize<W: Write>(&self, writer: &mut W) -> Result<(), Error>

fn try_to_vec(&self) -> Result<Vec<u8>, Error>

Serialize this instance into a vector of bytes.

impl Clone for NewView

fn clone(&self) -> NewView

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl From<NewView> for HotStuffMessage

fn from(new_view: NewView) -> Self

Converts to this type from the input type.