Enum ResourceMetadata 

pub enum ResourceMetadata<'a> {
    None,
    Packed(&'a [u8]),
    SentInFirstSegment {
        packed_len: u32,
    },
}

RNS 1.4.2 resource metadata on the send side: packed msgpack bytes the engine never unpacks, carried at the head of the stream as 3-byte-BE-length ‖ packed and covered by the resource hash, the advertised d, and (when one wins) the compressed stream.

On a split transfer the block rides segment one only, but every segment advertises the metadata flag and a d that includes the block. The reference threads this through sent_metadata_size; ResourceMetadata::SentInFirstSegment is that parameter by name.

Variants

None

Packed(&'a [u8])

This (first or only) segment carries the block in-stream.

SentInFirstSegment

A later segment of a split whose first segment carried the block: the flag and the d accounting still travel, the bytes do not.

Fields

packed_len: u32

Implementations

impl<'a> ResourceMetadata<'a>

pub const fn block_len(&self) -> usize

Prefix plus packed bytes: what the block adds to the advertised d on every segment.

pub const fn travels(&self) -> bool

Whether the advertisement’s metadata flag travels.

Trait Implementations

impl<'a> Clone for ResourceMetadata<'a>

fn clone(&self) -> ResourceMetadata<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for ResourceMetadata<'a>

impl<'a> Debug for ResourceMetadata<'a>

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

Formats the value using the given formatter.

impl<'a> Default for ResourceMetadata<'a>

fn default() -> ResourceMetadata<'a>

Returns the “default value” for a type.

impl<'a> Eq for ResourceMetadata<'a>

impl<'a> PartialEq for ResourceMetadata<'a>

fn eq(&self, other: &ResourceMetadata<'a>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<'a> StructuralPartialEq for ResourceMetadata<'a>