Struct PullConfig 

pub struct PullConfig {
    pub read_ahead_bytes: u64,
    pub streamer_lane_cap: usize,
}

Zero-config tunables shared by the consumption faces.

Overrides are opt-in: PullConfig::default is the whole configuration a caller needs. Override a field with struct-update syntax:

use decdn_client::PullConfig;

// Let a stream run 64 MiB ahead of its reader instead of the default.
let config = PullConfig {
    read_ahead_bytes: 64 * 1024 * 1024,
    ..PullConfig::new()
};
assert_eq!(config.streamer_lane_cap, PullConfig::new().streamer_lane_cap);

Fields

read_ahead_bytes: u64

The Streamer’s bounded read-ahead: the maximum number of bytes fetched AHEAD of the consumer’s read cursor. Because every fetched byte is paid, this read-ahead bound is also the outstanding-spend bound for a stream the consumer abandons early — fetch a two-hour movie’s first read_ahead_bytes only, not the whole thing, for a viewer who stops after five minutes. A value below [crate::pacer::PULL_WINDOW_FLOOR] is raised to it: a smaller window cannot keep a paid leg moving. The Downloader ignores it and fetches the whole blob at full throughput.

streamer_lane_cap: usize

The Streamer’s provider-lane cap: how many discovered holders it fetches the front across at once (the acquire loop’s max_lanes). Small by design — a paced stream wants a little same-region parallelism on the front, not the wide striping a full download does. The Downloader runs one lane per holder instead.

Implementations

impl PullConfig

pub const fn new() -> Self

The default configuration: every tunable at its documented default. const so it is provably free of any network or chain access.

Trait Implementations

impl Clone for PullConfig

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PullConfig

impl Debug for PullConfig

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

Formats the value using the given formatter.

impl Default for PullConfig

fn default() -> Self

Returns the “default value” for a type.

impl Eq for PullConfig

impl PartialEq for PullConfig

fn eq(&self, other: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PullConfig