Struct RemoteScanOptions 

pub struct RemoteScanOptions {
    pub bidirectional: bool,
}

Reader-side options for the scan walker.

Defaults to a bidirectional walk: the remote backend pairs forward preamble fetches with backward postamble fetches, and a pipelined full-discovery scanner overlaps each round’s backward validation with the next round’s primary fetches. On real-network workloads this roughly halves wall-clock for full layout discovery and tail / middle access.

use tensogram::RemoteScanOptions;
let opts = RemoteScanOptions::default();
assert!(opts.bidirectional);

Fields

bidirectional: bool

Enable the bidirectional walker on the remote backend.

When true (the default), the remote backend pairs forward preamble fetches with backward postamble fetches across the file, using the v3 postamble’s mirrored total_length field to walk inward from EOF in parallel with the forward sweep. The pipelined scanner overlaps each round’s candidate-preamble validation with the next round’s primary fetches, collapsing the per-round critical path from 2 RTTs to 1 RTT.

Set false to force a forward-only walk — useful when an adversarial server might serve disagreeing forward and backward reads, or when the remote source returns paired ranges over a transport whose connection-pool serialises them anyway.

RemoteScanOptions only configures the remote backend. The local-file backend uses a separate in-memory walker configured by crate::framing::ScanOptions; this flag is silently ignored when the source resolves to a local path.

Trait Implementations

impl Clone for RemoteScanOptions

fn clone(&self) -> RemoteScanOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RemoteScanOptions

impl Debug for RemoteScanOptions

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

Formats the value using the given formatter.

impl Default for RemoteScanOptions

fn default() -> Self

Returns the “default value” for a type.

impl Eq for RemoteScanOptions

impl PartialEq for RemoteScanOptions

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