Struct OpenOptions 

pub struct OpenOptions {
    pub lock_timeout_ms: u32,
}

Knobs for Database::open_with_options.

All fields default to the same values the convenience Database::open / [Database::open_encrypted] / etc. constructors use, so OpenOptions::default() round-trips the historical behavior exactly.

Fields

lock_timeout_ms: u32

Maximum time, in milliseconds, to wait for the cross-process database lock (_meta/.lock) before failing the open with MongrelError::Io.

0 (the default) preserves the historical fail-fast semantics: a single try_lock_exclusive call, no retry, no sleep. SQLite-style busy_timeout semantics kick in once this is non-zero — the open sleeps with progressively wider backoff (1ms → 10ms → 50ms) until either the lock is acquired or lock_timeout_ms elapses, at which point the open returns the same Io(WouldBlock) error the fail-fast path would.

Only the cross-process lock is affected. Mounted tables, page-cache misses, and WAL appends already serialize through in-process locks that handle their own contention.

Implementations

impl OpenOptions

pub fn with_lock_timeout_ms(self, ms: u32) -> Self

Set OpenOptions::lock_timeout_ms. 0 keeps the fail-fast default; SQLite-style applications typically pick 1_000 – 5_000ms.

Trait Implementations

impl Clone for OpenOptions

fn clone(&self) -> OpenOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OpenOptions

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

Formats the value using the given formatter.

impl Default for OpenOptions

fn default() -> OpenOptions

Returns the “default value” for a type.