Enum WriteMergeMode 

pub enum WriteMergeMode {
    Safe,
    LabUnsafe,
}

Selects the commit-path safety regime.

Safe (the default) always runs the full Cahill/Fekete SSI validation for every BEGIN CONCURRENT commit. LabUnsafe activates research-grade optimisations — currently the SsiEProcessGate skip-path — that trade a bounded-probability increase in potentially-missed SSI conflicts for commit-path throughput. LabUnsafe is configured via PRAGMA fsqlite.write_merge = LAB_UNSAFE and emits a startup warning the first time it is activated on a connection.

Variants

Safe

Full SSI every commit. This is the only production-safe mode.

LabUnsafe

Research-grade skip path gated by an anytime-valid e-process. See SsiEProcessGate in fsqlite-mvcc for the mathematical form and safety argument.

Trait Implementations

impl Clone for WriteMergeMode

fn clone(&self) -> WriteMergeMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WriteMergeMode

impl Debug for WriteMergeMode

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

Formats the value using the given formatter.

impl Default for WriteMergeMode

fn default() -> WriteMergeMode

Returns the “default value” for a type.

impl Eq for WriteMergeMode

impl PartialEq for WriteMergeMode

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