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CheckpointProbe

khive_db::diagnostics

Struct CheckpointProbe 

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pub struct CheckpointProbe {
    pub busy: i64,
    pub log_frames: i64,
    pub checkpointed_frames: i64,
}
Expand description

Raw PRAGMA wal_checkpoint(PASSIVE) return row.

SQLite returns three columns: busy (1 when the checkpoint could not run to completion because a writer/reader held it back), log (frames currently in the WAL), and checkpointed (frames moved into the database by THIS call). Pin depth is log - checkpointed.

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§busy: i64§log_frames: i64§checkpointed_frames: i64

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impl CheckpointProbe

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pub fn pin_depth(&self) -> i64

Frames still pinned behind the backfill boundary. Negative components (an in-memory or non-WAL database reports -1) clamp to 0.

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impl Clone for CheckpointProbe

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for CheckpointProbe

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impl Debug for CheckpointProbe

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

Formats the value using the given formatter. Read more
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impl Eq for CheckpointProbe

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impl PartialEq for CheckpointProbe

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl Serialize for CheckpointProbe

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for CheckpointProbe

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impl<T> Any for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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