Struct PeerCapability 

pub struct PeerCapability {
    pub name: String,
    pub version: CapabilityVersion,
    pub required: bool,
    pub metadata: HashMap<String, String>,
}

A single named capability with version and optional metadata key-value pairs.

When required is true, the local peer considers this capability mandatory for a successful negotiation (subject to the active CapabilityPolicy).

Fields

name: String

Protocol identifier, e.g. "bitswap" or "graphsync".

version: CapabilityVersion

Version triple describing the capability’s feature level.

required: bool

Whether the local node considers this capability mandatory.

metadata: HashMap<String, String>

Arbitrary string key-value pairs (e.g. "max_block_size" → "1048576").

Implementations

impl PeerCapability

pub fn required(name: impl Into<String>, version: CapabilityVersion) -> Self

Construct a required capability with no metadata.

pub fn optional(name: impl Into<String>, version: CapabilityVersion) -> Self

Construct an optional capability with no metadata.

pub fn with_metadata( name: impl Into<String>, version: CapabilityVersion, required: bool, metadata: HashMap<String, String>, ) -> Self

Construct a capability with metadata.

Trait Implementations

impl Clone for PeerCapability

fn clone(&self) -> PeerCapability

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PeerCapability

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

Formats the value using the given formatter.

impl PartialEq for PeerCapability

fn eq(&self, other: &PeerCapability) -> 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 PeerCapability