diem_types::block_metadata

Struct BlockMetadata

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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.

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impl BlockMetadata

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

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pub fn id(&self) -> HashValue

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

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pub fn timestamp_usec(&self) -> u64

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pub fn proposer(&self) -> AccountAddress

Trait Implementations§

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impl Clone for BlockMetadata

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fn clone(&self) -> BlockMetadata

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BlockMetadata

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for BlockMetadata

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

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq for BlockMetadata

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for BlockMetadata

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

Serialize this value into the given Serde serializer. Read more
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impl Eq for BlockMetadata

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impl StructuralPartialEq for BlockMetadata

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