Enum ReaderBounds 

pub enum ReaderBounds {
    Live,
    Snapshot,
}

Variants

Live

Systemd-style mutable reader bounds.

The reader keeps a cached file size and refreshes it only when a read would go beyond the cached end of file, matching libsystemd’s active journal behavior without a metadata syscall on every object read.

Snapshot

Immutable reader bounds.

The reader fixes the file size at open time, like SD_JOURNAL_ASSUME_IMMUTABLE, for polling/query consumers that do not need to observe appends during the current scan.

Trait Implementations

impl Clone for ReaderBounds

fn clone(&self) -> ReaderBounds

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ReaderBounds

impl Debug for ReaderBounds

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

Formats the value using the given formatter.

impl Default for ReaderBounds

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ReaderBounds

impl PartialEq for ReaderBounds

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