Struct MemoryStore

pub struct MemoryStore { /* private fields */ }

MemoryStore is a simple implementation of Store that persists data in an in-memory HashMap.

Note that the implementation is currently not thread-safe and will need a mutex added if it’s ever used for anything serious.

Implementations

impl MemoryStore

pub fn new() -> MemoryStore

pub fn new_verbose() -> MemoryStore

Trait Implementations

impl Default for MemoryStore

fn default() -> MemoryStore

Returns the “default value” for a type.

impl Store for MemoryStore

fn compare_and_swap_with_ttl( &mut self, key: &str, old: i64, new: i64, _: Duration, ) -> Result<bool, CellError>

Compares the value at the given key with a known old value and swaps it for a new value if and only if they’re equal. Also sets the key’s TTL until it expires.

fn get_with_time(&self, key: &str) -> Result<(i64, Tm), CellError>

Gets the given key’s value and the current time as dictated by the store (this is done so that rate limiters running on a variety of different nodes can operate with a consistent clock instead of using their own). If the key was unset, -1 is returned.

fn log_debug(&self, message: &str)

Logs a debug message to the data store.

fn set_if_not_exists_with_ttl( &mut self, key: &str, value: i64, _: Duration, ) -> Result<bool, CellError>

Sets the given key to the given value if and only if it doesn’t already exit. Whether or not the key existed previously it’s given a new TTL.