Enum Durability

#[non_exhaustive]
pub enum Durability {
    None,
    Eventual,
    Immediate,
    Paranoid,
}

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

Commits with this durability level will not be persisted to disk unless followed by a commit with a higher durability level.

Note: Pages are only freed during commits with higher durability levels. Exclusively using this durability level will result in rapid growth of the database file.

Eventual

Commits with this durability level have been queued for persitance to disk, and should be persistent some time after WriteTransaction::commit returns.

Immediate

Commits with this durability level are guaranteed to be persistent as soon as WriteTransaction::commit returns.

Paranoid

👎Deprecated since 2.3.0: use set_two_phase_commit(true) instead

This is identical to Durability::Immediate, but also enables 2-phase commit. New code should call set_two_phase_commit(true) directly instead.

Trait Implementations

impl Clone for Durability

fn clone(&self) -> Durability

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Durability

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

Formats the value using the given formatter.

impl Copy for Durability

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

• None: 0 bytes
• Eventual: 0 bytes
• Immediate: 0 bytes
• Paranoid: 0 bytes