Struct ReadOptions 

pub struct ReadOptions {
    pub verify_checksums: bool,
    pub fill_cache: bool,
    pub snapshot: Option<Snapshot>,
}

Options that control read operations.

See include/leveldb/options.h.

Fields

verify_checksums: bool

Verify block checksums on every read.

Partially implemented. Table::get and read_block respect this flag, but Version::get (the SSTable lookup path used by Db::get) currently hardcodes false, so point lookups never verify checksums even when this is set. Iterator block reads are also unaffected. Setting this to true has no effect until the flag is fully threaded through.

Default: false.

fill_cache: bool

Cache blocks read during this operation in the block cache. Set to false for bulk scans to avoid polluting the cache.

Not yet implemented. Accepted but ignored — there is no block cache yet, so all block reads bypass caching unconditionally.

Default: true.

snapshot: Option<Snapshot>

Read as of this snapshot’s sequence number. None means “use an implicit snapshot of the current state”.

Implementations

impl ReadOptions

pub fn new() -> Self

Trait Implementations

impl Clone for ReadOptions

fn clone(&self) -> ReadOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReadOptions

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

Formats the value using the given formatter.

impl Default for ReadOptions

fn default() -> ReadOptions

Returns the “default value” for a type.