Struct Header 

pub struct Header {

    pub nonce: u64,
    pub prev_hash: Bytes,
    pub prev_rand_seed: Bytes,
    pub rand_seed: Bytes,
    pub pub_keys_bitmap: Bytes,
    pub shard_id: u32,
    pub time_stamp: u64,
    pub round: u64,
    pub epoch: u32,
    pub block_body_type: i32,
    pub signature: Bytes,
    pub leader_signature: Bytes,
    pub mini_block_headers: Vec<MiniBlockHeader>,
    pub peer_changes: Vec<PeerChange>,
    pub root_hash: Bytes,
    pub meta_block_hashes: Vec<Bytes>,
    pub tx_count: u32,
    pub epoch_start_meta_hash: Bytes,
    pub receipts_hash: Bytes,
    pub chain_id: Bytes,
    pub software_version: Bytes,
    pub accumulated_fees: Bytes,
    pub developer_fees: Bytes,
    pub reserved: Bytes,
}

Header holds the metadata of a block. This is the part that is being hashed and run through consensus. The header holds the hash of the body and also the link to the previous block header hash

Fields

nonce: u64

prev_hash: Bytes

prev_rand_seed: Bytes

rand_seed: Bytes

pub_keys_bitmap: Bytes

shard_id: u32

time_stamp: u64

round: u64

epoch: u32

block_body_type: i32

signature: Bytes

leader_signature: Bytes

mini_block_headers: Vec<MiniBlockHeader>

peer_changes: Vec<PeerChange>

root_hash: Bytes

meta_block_hashes: Vec<Bytes>

tx_count: u32

epoch_start_meta_hash: Bytes

receipts_hash: Bytes

chain_id: Bytes

software_version: Bytes

accumulated_fees: Bytes

developer_fees: Bytes

reserved: Bytes

Implementations

impl Header

pub fn block_body_type(&self) -> Type

Returns the enum value of block_body_type, or the default if the field is set to an invalid enum value.

pub fn set_block_body_type(&mut self, value: Type)

Sets block_body_type to the provided enum value.

Trait Implementations

impl Clone for Header

fn clone(&self) -> Header

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Header

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

Formats the value using the given formatter.

impl Default for Header

fn default() -> Self

Returns the “default value” for a type.

impl Message for Header

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for Header

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for Header