Struct FileState 

pub struct FileState {
    pub mtime_ms: u64,
    pub size_bytes: u64,
}

Identity of one file version. A changed mtime or size ⇒ stale ⇒ cache miss. Mirrors the (mtime, size) pair the BM25 index already trusts for staleness.

Fields

mtime_ms: u64

size_bytes: u64

Implementations

impl FileState

pub fn from_metadata(meta: &Metadata) -> Option<Self>

Build from an already-stated Metadata (no extra syscall) — callers in the hot path typically have this in hand from their size/regular-file checks. Returns None only when the platform cannot report mtime.

pub fn from_path(path: &Path) -> Option<Self>

Convenience: stat the path then build the state. Costs one syscall.

Trait Implementations

impl Clone for FileState

fn clone(&self) -> FileState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FileState

impl Debug for FileState

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

Formats the value using the given formatter.

impl Eq for FileState

impl PartialEq for FileState

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