Trait StatFetcher 

pub trait StatFetcher {
    // Required method
    fn stat(&self, frn: u64) -> Option<(u64, i64)>;
}

Size/mtime lookup for created/changed files. The USN record carries neither (RESEARCH.md), so the live session asks the volume; replay tests inject canned values.

Required Methods

fn stat(&self, frn: u64) -> Option<(u64, i64)>

Look up the current size (bytes) and mtime for an FRN, or None when the file is already gone or the fetcher has no answer.

Implementors

impl StatFetcher for fmf_core::engine::watch::NullStatFetcher

impl StatFetcher for VolumeStatFetcher

impl StatFetcher for fmf_core::usn::apply::NullStatFetcher