Struct SessionConfig 

pub struct SessionConfig {
    pub timeout: Duration,
    pub max_bytes: u64,
    pub max_concurrent_requests: usize,
    pub request_timeout: Duration,
    pub max_retries: usize,
    pub backoff_base: Duration,
}

Per-session transfer configuration for block exchange operations.

Controls timeouts, concurrency limits, and retry behaviour for a single block-exchange session. Three convenience constructors cover the most common scenarios; individual fields can always be overridden afterwards.

Note: this type lives in the session_config module and is distinct from crate::session::SessionConfig, which governs higher-level session orchestration (priorities, concurrent blocks, etc.).

Fields

timeout: Duration

Session-level timeout. Default: 30 s.

max_bytes: u64

Maximum total bytes to transfer in this session. Default: 1 GiB.

max_concurrent_requests: usize

Maximum concurrent block requests. Default: 16.

request_timeout: Duration

Per-request timeout. Default: 10 s.

max_retries: usize

Maximum retry attempts per block. Default: 3.

backoff_base: Duration

Exponential backoff base duration. Default: 200 ms.

Implementations

impl SessionConfig

pub fn high_throughput() -> Self

Create a high-throughput config (longer timeouts, more concurrency).

pub fn low_latency() -> Self

Create a low-latency config (short timeouts, fail fast).

pub fn backoff_for_retry(&self, retry: usize) -> Duration

Compute backoff duration for retry n using exponential backoff.

backoff = base × 2^min(retry, 6) (capped at 32× base to prevent runaway growth).

Trait Implementations

impl Clone for SessionConfig

fn clone(&self) -> SessionConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SessionConfig

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

Formats the value using the given formatter.

impl Default for SessionConfig

fn default() -> Self

Returns the “default value” for a type.