Struct HeadersRequest 

pub struct HeadersRequest {
    pub start: BlockHashOrNumber,
    pub limit: u64,
    pub direction: HeadersDirection,
}

The header request struct to be sent to connected peers, which will proceed to ask them to stream the requested headers to us.

Fields

start: BlockHashOrNumber

The starting block

limit: u64

The response max size

direction: HeadersDirection

The direction in which headers should be returned.

Implementations

impl HeadersRequest

pub const fn one(start: BlockHashOrNumber) -> Self

Creates a request for a single header (direction doesn’t matter).

Arguments

• start - The block hash or number to start from

pub const fn rising(start: BlockHashOrNumber, limit: u64) -> Self

Creates a request for headers in rising direction (ascending block numbers).

Arguments

• start - The block hash or number to start from
• limit - Maximum number of headers to retrieve

pub const fn falling(start: BlockHashOrNumber, limit: u64) -> Self

Creates a request for headers in falling direction (descending block numbers).

Arguments

• start - The block hash or number to start from
• limit - Maximum number of headers to retrieve

Trait Implementations

impl Clone for HeadersRequest

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HeadersRequest

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

Formats the value using the given formatter.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 56 bytes