Struct exonum::storage::DbOptions

pub struct DbOptions {
    pub max_open_files: Option<i32>,
    pub create_if_missing: bool,
}

Options for the database.

These parameters apply to the underlying database of Exonum, currently RocksDB.

Fields

max_open_files: Option<i32>

Number of open files that can be used by the database.

The underlying database opens multiple files during operation. If your system has a limit on the number of files which can be open simultaneously, you can adjust this option to match the limit. Note, that limiting the number of simultaneously open files might slow down the speed of database operation.

Defaults to None, meaning that the number of open files is unlimited.

create_if_missing: bool

An option to indicate whether the system should create a database or not, if it's missing.

This option applies to the cases when a node was switched off and is on again. If the database cannot be found at the indicated path and this option is switched on, a new database will be created at that path and blocks will be included therein.

Defaults to true.

Trait Implementations

impl Copy for DbOptions

impl Default for DbOptions

fn default() -> Self

Returns the "default value" for a type.

impl Clone for DbOptions

fn clone(&self) -> DbOptions

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DbOptions

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DbOptions

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where     __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for DbOptions

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where     __S: Serializer,

Serialize this value into the given Serde serializer.