Struct wascap_guest::kv::KeyValueStore

pub struct KeyValueStore { /* fields omitted */ }

An abstraction around a host runtime capability for a key-value store

Methods

impl KeyValueStore

pub fn get(&self, key: &str) -> Result<(String, bool)>

Retrieves the value for a given key, returning the value and whether or not it existed.

pub fn set(&self, key: &str, value: &str) -> Result<()>

Sets the value for a given key

pub fn atomic_add(&self, key: &str, value: i32) -> Result<i32>

Performs an atomic add operation, returning the new value

pub fn list_add(&self, key: &str, item: &str) -> Result<usize>

Adds a string value to a list stored within a given key

pub fn del_key(&self, key: &str) -> Result<()>

Deletes the given key

pub fn list_range(
    &self,
    key: &str,
    start: isize,
    stop_inclusive: isize
) -> Result<Vec<String>>

Requests a list of values contained within a given key