Struct ReadPoolOptions 

pub struct ReadPoolOptions { /* private fields */ }

Options for a ReadPool. The default (ReadPoolOptions::new) matches DbOptions::open_read_pool: read-write file handles, with query_only set and verified on every reader. Build with the with_* methods; the fields are private.

Implementations

impl ReadPoolOptions

pub fn new() -> Self

pub fn with_read_only(self, on: bool) -> Self

Opens each reader with SQLITE_OPEN_READ_ONLY, so writes fail even if query_only is later turned off. The database must already exist: the pool never creates it, changes its journal mode, narrows its permissions, or runs optimize. Each reader still runs the init hook, as on the other connections. A rollback journal left by a crash is recovered by a writer, not by a read-only reader. Default off.

pub fn with_reader_cache_kib(self, kib: u32) -> Self

Page cache size for each reader connection, in KiB. It is applied as PRAGMA cache_size set to -kib, so the size does not depend on the page size. Valid values are 1 to 2147483647; the pool checks this when it opens. It overrides CacheProfile::LargeWorkingSet on readers only. Writers and DbOptions::open_reader keep the profile size. Default: the profile’s size.

Trait Implementations

impl Clone for ReadPoolOptions

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ReadPoolOptions

impl Debug for ReadPoolOptions

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

Formats the value using the given formatter.

impl Default for ReadPoolOptions

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ReadPoolOptions

impl PartialEq for ReadPoolOptions

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ReadPoolOptions