Struct SnapshotOptions

Source

pub struct SnapshotOptions {
    pub keep_wal: bool,
    pub archive_wal: bool,
}

Expand description

Options for GraphDb::snapshot_with.

Fields§

§keep_wal: bool

When true, the WAL is preserved after the snapshot write. Pre-snapshot commits remain reachable via GraphDb::open_at. When false (the default), the WAL is truncated to a minimal baseline so cold-start replay stays fast.

§archive_wal: bool

When true, the current WAL is renamed to wal.<commit_seq>.archive before a fresh WAL baseline is written (history-preserving snapshot).

This is the feature opt-in: false (the default) leaves the existing truncation / keep-wal behaviour byte-identical. archive_wal takes precedence over keep_wal when both are set.

Archives can be scanned by GraphDb::node_history, GraphDb::edge_history, GraphDb::was_linked, and GraphDb::open_at, extending the reachable history horizon across snapshot boundaries.

SnapshotOptions

Struct SnapshotOptions Copy item path

Fields§

Trait Implementations§

impl Clone for SnapshotOptions

fn clone(&self) -> SnapshotOptions

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

impl Debug for SnapshotOptions

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

impl Default for SnapshotOptions

fn default() -> SnapshotOptions

Auto Trait Implementations§

impl Freeze for SnapshotOptions

impl RefUnwindSafe for SnapshotOptions

impl Send for SnapshotOptions

impl Sync for SnapshotOptions

impl Unpin for SnapshotOptions

impl UnsafeUnpin for SnapshotOptions

impl UnwindSafe for SnapshotOptions

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> CloneToUninit for Twhere T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> LayoutRaw for T

fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>

impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2where T: SharedNiching<N1, N2>, N1: Niching<T>, N2: Niching<T>,

unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool

fn resolve_niched(out: Place<NichedOption<T, N1>>)

impl<T> Pointee for T

type Metadata = ()

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = !

fn try_from(value: U) -> Result<T, !>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct SnapshotOptions

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T> CloneToUninit for T
where T: Clone,

impl<T, U> Into<U> for T
where U: From<T>,

impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
where T: SharedNiching<N1, N2>, N1: Niching<T>, N2: Niching<T>,

impl<T> ToOwned for T
where T: Clone,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,