Struct Segment 

pub struct Segment { /* private fields */ }

A single WAL segment file with concurrent read/write support.

Writes go through the mutex-protected File handle. Reads use a dup’d file descriptor (read_fd) that is independent of the write cursor, enabling lock-free pread/preadv calls.

Implementations

impl Segment

pub fn read_fd(&self) -> &Arc<OwnedFd>

Returns the dup’d read file descriptor for lock-free pread/preadv.

pub fn file_size(&self) -> u64

Returns the current total file size (header + data).

pub fn expiration_ms(&self) -> i64

Returns the immutable expiration timestamp (ms since epoch).

pub fn path(&self) -> &Path

Returns the path to this segment file.

Trait Implementations

impl Debug for Segment

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

Formats the value using the given formatter.