Struct ExchangeConfig 

pub struct ExchangeConfig {

    pub piece_size: u64,
    pub block_size: usize,
    pub request_window: usize,
    pub max_piece_retries: u32,
    pub materialize_limit: u64,
    pub recv_timeout: Duration,
    pub serve_idle_timeout: Duration,
    pub upload_bytes_per_sec: Option<u64>,
    pub download_bytes_per_sec: Option<u64>,
    pub max_sources: usize,
    pub ban_after_corrupt: u32,
    pub max_piece_size: u64,
    pub max_artifact_bytes: u64,
    pub redistribution: Arc<dyn RedistributionPolicy>,
}

Tunables for one node’s exchange.

Fields

piece_size: u64

Piece size for artifacts seeded here.

block_size: usize

Bytes of piece data per piece frame.

request_window: usize

Pieces requested per round trip.

max_piece_retries: u32

Bad copies of one piece accepted from one peer before giving up on that piece from that peer.

materialize_limit: u64

Completed artifacts up to this size are also stored whole under their content hash, so package verification can read them.

recv_timeout: Duration

Longest wait for one frame from a peer.

serve_idle_timeout: Duration

Longest a serve session waits for the fetcher’s next request before closing the stream.

upload_bytes_per_sec: Option<u64>

Cap on bytes sent to peers per second (None = unlimited).

download_bytes_per_sec: Option<u64>

Cap on bytes received from peers per second (None = unlimited).

max_sources: usize

Most peers a swarm fetch pulls from at once.

ban_after_corrupt: u32

Corrupt pieces from one peer before it is banned (1 = first).

max_piece_size: u64

Largest piece size accepted in a peer’s descriptor. A descriptor above it is refused before any piece is requested.

max_artifact_bytes: u64

Largest total size accepted in a peer’s descriptor (an exact size from a signed manifest, when the caller has one, is checked as well).

redistribution: Arc<dyn RedistributionPolicy>

Who may be handed what this node holds. Fixed for the exchange’s lifetime; the default is crate::mesh_swarm_state::ManifestPolicy.

Implementations

impl ExchangeConfig

pub fn validate(&self) -> Result<(), ExchangeError>

Check sizes against the protocol limits.

Trait Implementations

impl Clone for ExchangeConfig

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 ExchangeConfig

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

Formats the value using the given formatter.

impl Default for ExchangeConfig

fn default() -> Self

Returns the “default value” for a type.