Struct solana_vote_program::vote_state::CompactVoteStateUpdate

source · [−]

pub struct CompactVoteStateUpdate {
    pub root: Slot,
    pub root_to_first_vote_offset: u64,
    pub lockouts_32: Vec<CompactLockout<u32>>,
    pub lockouts_16: Vec<CompactLockout<u16>>,
    pub lockouts_8: Vec<CompactLockout<u8>>,
    pub hash: Hash,
    pub timestamp: Option<UnixTimestamp>,
}

Expand description

Ignoring overhead, in a full VoteStateUpdate the lockouts take up 31 * (64 + 32) = 2976 bits.

In this schema we separate the votes into 3 separate lockout structures and store offsets rather than slot number, allowing us to use smaller fields.

In a full CompactVoteStateUpdate the lockouts take up 64 + (32 + 8) * 16 + (16 + 8) * 8 + (8 + 8) * 6 = 992 bits allowing us to greatly reduce block size.

Fields

root: Slot

The proposed root, u64::MAX if there is no root

root_to_first_vote_offset: u64

The offset from the root (or 0 if no root) to the first vote

lockouts_32: Vec<CompactLockout<u32>>

Part of the proposed tower, votes with confirmation_count > 15

lockouts_16: Vec<CompactLockout<u16>>

Part of the proposed tower, votes with 15 >= confirmation_count > 7

lockouts_8: Vec<CompactLockout<u8>>

Part of the proposed tower, votes with 7 >= confirmation_count

hash: Hash

Signature of the bank’s state at the last slot

timestamp: Option<UnixTimestamp>

Processing timestamp of last slot

Implementations

impl CompactVoteStateUpdate

pub fn new(lockouts: VecDeque<Lockout>, root: Option<Slot>, hash: Hash) -> Self

pub fn root(&self) -> Option<Slot>

pub fn slots(&self) -> Vec<Slot>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A> where A: Allocator,`

Trait Implementations

impl AbiExample for CompactVoteStateUpdate

fn example() -> Self

impl Clone for CompactVoteStateUpdate

fn clone(&self) -> CompactVoteStateUpdate

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl Debug for CompactVoteStateUpdate

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl Default for CompactVoteStateUpdate

fn default() -> CompactVoteStateUpdate

Returns the “default value” for a type. Read more

impl<'de> Deserialize<'de> for CompactVoteStateUpdate

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
__D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl From<CompactVoteStateUpdate> for VoteStateUpdate

fn from(vote_state_update: CompactVoteStateUpdate) -> Self

Converts to this type from the input type.

impl From<CompactVoteStateUpdate> for VoteTransaction

fn from(compact_state_update: CompactVoteStateUpdate) -> Self

Converts to this type from the input type.

impl From<Vec<(u64, u32), Global>> for CompactVoteStateUpdate

fn from(recent_slots: Vec<(Slot, u32)>) -> Self

Converts to this type from the input type.

impl From<VoteStateUpdate> for CompactVoteStateUpdate

fn from(vote_state_update: VoteStateUpdate) -> Self

Converts to this type from the input type.

impl PartialEq<CompactVoteStateUpdate> for CompactVoteStateUpdate

fn eq(&self, other: &CompactVoteStateUpdate) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

fn ne(&self, other: &CompactVoteStateUpdate) -> bool

This method tests for !=.

impl Serialize for CompactVoteStateUpdate

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where
S: Serializer,

Serialize this value into the given Serde serializer. Read more

impl Eq for CompactVoteStateUpdate

impl StructuralEq for CompactVoteStateUpdate

impl StructuralPartialEq for CompactVoteStateUpdate

Auto Trait Implementations

impl RefUnwindSafe for CompactVoteStateUpdate

impl Send for CompactVoteStateUpdate

impl Sync for CompactVoteStateUpdate

impl Unpin for CompactVoteStateUpdate

impl UnwindSafe for CompactVoteStateUpdate

Blanket Implementations

impl<T> AbiEnumVisitor for T where
T: Serialize + AbiExample + ?Sized,

default fn visit_for_abi(
&self,
digester: &mut AbiDigester
) -> Result<AbiDigester, DigestError>

impl<T> AbiEnumVisitor for T where
T: Serialize + ?Sized,

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&self,
_digester: &mut AbiDigester
) -> Result<AbiDigester, DigestError>

impl<T> AbiExample for T

default fn example() -> T

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T: 'static + ?Sized,

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T: ?Sized,

const: unstable · source

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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const: unstable · source

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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