pub struct BlockMetadata { /* private fields */ }
Expand description

Struct that will be persisted on chain to store the information of the current block.

The flow will look like following:

  1. The executor will pass this struct to VM at the end of a block proposal.
  2. The VM will use this struct to create a special system transaction that will emit an event represents the information of the current block. This transaction can’t be emitted by regular users and is generated by each of the validators on the fly. Such transaction will be executed before all of the user-submitted transactions in the blocks.
  3. Once that special resource is modified, the other user transactions can read the consensus info by calling into the read method of that resource, which would thus give users the information such as the current leader.

Implementations§

source§

impl BlockMetadata

source

pub fn new( id: HashValue, round: u64, timestamp_usecs: u64, previous_block_votes: Vec<AccountAddress>, proposer: AccountAddress ) -> Self

source

pub fn id(&self) -> HashValue

source

pub fn into_inner(self) -> (u64, u64, Vec<AccountAddress>, AccountAddress)

source

pub fn timestamp_usec(&self) -> u64

source

pub fn proposer(&self) -> AccountAddress

Trait Implementations§

source§

impl Arbitrary for BlockMetadata

§

type Parameters = SizeRange

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.
source§

fn arbitrary_with(num_validators_range: Self::Parameters) -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args. Read more
§

type Strategy = BoxedStrategy<BlockMetadata>

The type of Strategy used to generate values of type Self.
§

fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). Read more
source§

impl Clone for BlockMetadata

source§

fn clone(&self) -> BlockMetadata

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
source§

impl Debug for BlockMetadata

source§

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

Formats the value using the given formatter. Read more
source§

impl<'de> Deserialize<'de> for BlockMetadata

source§

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

Deserialize this value from the given Serde deserializer. Read more
source§

impl PartialEq<BlockMetadata> for BlockMetadata

source§

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

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl Serialize for BlockMetadata

source§

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

Serialize this value into the given Serde serializer. Read more
source§

impl Eq for BlockMetadata

source§

impl StructuralEq for BlockMetadata

source§

impl StructuralPartialEq for BlockMetadata

Auto Trait Implementations§

Blanket Implementations§

source§

impl<T> Any for Twhere T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

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

Mutably borrows from an owned value. Read more
source§

impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
source§

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> Same<T> for T

§

type Output = T

Should always be Self
source§

impl<T> TestOnlyHash for Twhere T: Serialize + ?Sized,

source§

fn test_only_hash(&self) -> HashValue

Generates a hash used only for tests.
source§

impl<T> ToOwned for Twhere T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
§

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

§

fn vzip(self) -> V

source§

impl<T> DeserializeOwned for Twhere T: for<'de> Deserialize<'de>,