Struct pagecache::Meta

pub struct Meta { /* fields omitted */ }

A simple map that can be used to store metadata for the pagecache tenant.

Methods

impl Meta

pub fn get_root(&self, table: &[u8]) -> Option<PageId>

Retrieve the PageId associated with an identifier

pub fn set_root(&mut self, name: Vec<u8>, pid: PageId)

Set the PageId associated with an identifier

pub fn del_root(&mut self, name: &[u8]) -> Option<PageId>

Remove the page mapping for a given identifier

pub fn tenants(&self) -> BTreeMap<Vec<u8>, PageId>

Return the current rooted tenants in Meta

Trait Implementations

impl Default for Meta

fn default() -> Meta

Returns the "default value" for a type.

impl Clone for Meta

fn clone(&self) -> Meta

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq<Meta> for Meta

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for Meta

impl Debug for Meta

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

Formats the value using the given formatter.

impl Serialize for Meta

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

Serialize this value into the given Serde serializer.

impl<'de> Deserialize<'de> for Meta

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

Deserialize this value from the given Serde deserializer.