Struct DatabaseArguments 

pub struct DatabaseArguments { /* private fields */ }

Available on crate feature mdbx only.

Arguments for database initialization.

Implementations

impl DatabaseArguments

pub fn new(client_version: ClientVersion) -> Self

Create new database arguments with given client version.

pub fn test() -> Self

Create database arguments suitable for testing.

Uses a small geometry (64MB max, 4MB growth) to avoid exhausting the system’s virtual memory map limit (vm.max_map_count) when many test databases are open concurrently.

pub const fn with_geometry_max_size(self, max_size: Option<usize>) -> Self

Sets the upper size limit of the db environment, the maximum database size in bytes.

pub const fn with_geometry_page_size(self, page_size: Option<usize>) -> Self

Sets the database page size value.

pub const fn with_sync_mode(self, sync_mode: Option<SyncMode>) -> Self

Sets the database sync mode.

pub const fn with_growth_step(self, growth_step: Option<usize>) -> Self

Configures the database growth step in bytes.

pub const fn with_log_level(self, log_level: Option<LogLevel>) -> Self

Set the log level.

pub const fn max_read_transaction_duration( &mut self, max_read_transaction_duration: Option<MaxReadTransactionDuration>, )

Set the maximum duration of a read transaction.

pub const fn with_max_read_transaction_duration( self, max_read_transaction_duration: Option<MaxReadTransactionDuration>, ) -> Self

Set the maximum duration of a read transaction.

pub const fn with_exclusive(self, exclusive: Option<bool>) -> Self

Set the mdbx exclusive flag.

pub const fn with_max_readers(self, max_readers: Option<u64>) -> Self

Set max_readers flag.

pub const fn client_version(&self) -> &ClientVersion

Returns the client version if any.

Trait Implementations

impl Clone for DatabaseArguments

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DatabaseArguments

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

Formats the value using the given formatter.

impl Default for DatabaseArguments

fn default() -> Self

Returns the “default value” for a type.

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: 184 bytes