Struct NodeCapabilities 

pub struct NodeCapabilities {
    pub peer_id: String,
    pub capabilities: Vec<NodeCapability>,
    pub protocol_version: String,
    pub announced_at: u64,
    pub ttl_secs: u64,
}

The full node-level capability advertisement sent by a single peer.

Fields

peer_id: String

Unique peer identifier (string form of the libp2p PeerId).

capabilities: Vec<NodeCapability>

Ordered list of capabilities the peer supports.

protocol_version: String

IPFRS protocol version string, e.g. "0.2.0".

announced_at: u64

Unix epoch timestamp in milliseconds at which the advertisement was created / last refreshed.

ttl_secs: u64

Time-to-live in seconds after which this record is considered stale.

Implementations

impl NodeCapabilities

pub const DEFAULT_TTL_SECS: u64 = 300

Default TTL used when none is provided explicitly.

pub fn new( peer_id: &str, capabilities: Vec<NodeCapability>, protocol_version: &str, ) -> Self

Create a fresh NodeCapabilities record with the current system time.

announced_at is set to the current Unix time in milliseconds. ttl_secs defaults to Self::DEFAULT_TTL_SECS (300 s).

pub fn has_capability(&self, name: &str) -> bool

Returns true if the peer supports the capability identified by name.

pub fn is_expired(&self, now_ms: u64) -> bool

Returns true if the record has expired relative to now_ms.

A record is expired when now_ms > announced_at + ttl_secs * 1000.

pub fn get_capability(&self, name: &str) -> Option<&NodeCapability>

Returns a reference to the first NodeCapability whose name matches name, or None if no such capability is present.

Trait Implementations

impl Clone for NodeCapabilities

fn clone(&self) -> NodeCapabilities

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NodeCapabilities

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for NodeCapabilities

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for NodeCapabilities

impl PartialEq for NodeCapabilities

fn eq(&self, other: &NodeCapabilities) -> 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 Serialize for NodeCapabilities

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for NodeCapabilities