Struct BackupId 

pub(super) struct BackupId {
    pub(super) millis: u64,
    pub(super) seq: u64,
}

Identifies a .corrupt-<millis>-<seq> backup file, ordered by creation time.

millis (wall clock) is the real ordering signal: it stays correct across a process restart, unlike seq, a per-process counter that resets to 0 each run. seq only breaks ties between backups created in the same millisecond – it is not derived from which names already exist, since pruning can free up a small seq and let a later backup reuse it, making it sort as older than it really is. Deriving Ord from the field order (millis first, then seq) gives exactly that priority.

Fields

millis: u64

seq: u64

Implementations

impl BackupId

fn generate() -> Self

Allocates a fresh id from the wall clock and a per-process counter.

pub(super) fn parse(suffix: &str) -> Option<Self>

Parses the <millis>-<seq> suffix produced by Display.

fn backup_path_for(self, original: &Path) -> PathBuf

Backup path for original: its file name with a .corrupt-<id> suffix.

Trait Implementations

impl Clone for BackupId

fn clone(&self) -> BackupId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BackupId

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

Formats the value using the given formatter.

impl Display for BackupId

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

Formats the value using the given formatter.

impl Ord for BackupId

fn cmp(&self, other: &BackupId) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for BackupId

fn eq(&self, other: &BackupId) -> 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 PartialOrd for BackupId

fn partial_cmp(&self, other: &BackupId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for BackupId

impl Eq for BackupId

impl StructuralPartialEq for BackupId