Enum JournalMode 

pub enum JournalMode {
    Wal,
    Wal2,
}

The WAL-family journal mode an opener ensures on a fresh file (design 306 D5). Under the default Wal request an existing wal or wal2 file keeps its mode (D3 — the opener accepts both). An explicit Wal2 request is a requirement, not a preference: the opener attempts the conversion and fails loudly if the file does not end up in wal2 — the daemon’s fleet contract (followers, backups) must never be silently unhonored.

Variants

Wal

Ordinary WAL — the default. The database file stays openable by any stock SQLite build (sqlite3 CLI, better-sqlite3, …), the design-306 §8.2 prize.

Wal2

The bedrock build’s dual-log wal2 — the daemon’s explicit opt-in (checkpoint headroom under sustained write load, and the follower/backup fleet contract; see docs/SQLITE_WAL2.md).

Implementations

impl JournalMode

pub fn pragma(self) -> &'static str

Trait Implementations

impl Clone for JournalMode

fn clone(&self) -> JournalMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JournalMode

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

Formats the value using the given formatter.

impl Default for JournalMode

fn default() -> JournalMode

Returns the “default value” for a type.

impl PartialEq for JournalMode

fn eq(&self, other: &JournalMode) -> 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 Copy for JournalMode

impl Eq for JournalMode

impl StructuralPartialEq for JournalMode