Struct FileTokenStore 

pub struct FileTokenStore { /* private fields */ }

Available on non-target_family=wasm only.

A TokenStore keeping each record in <dir>/<key>.json, written whole or not at all (a temporary file renamed over it), and held across processes with a file lock on <dir>/<key>.lock. On Unix the files, and the directories it creates for them, are readable by the owner alone. Native only.

Implementations

impl FileTokenStore

pub fn new(dir: impl Into<PathBuf>) -> Self

A store over the files in dir, created when first written.

pub fn path(&self, key: &str) -> PathBuf

The file the record under key is kept in.

Trait Implementations

impl Clone for FileTokenStore

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 FileTokenStore

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

Formats the value using the given formatter.

impl TokenStore for FileTokenStore

fn lock<'a>( &'a self, key: &'a str, ) -> WasmBoxedFuture<'a, Result<StoreLock, BoxError>>

Takes the file lock on <dir>/<key>.lock, waiting while another holder has it, for at most two minutes. A process that dies lets go of it.

fn load<'a>( &'a self, key: &'a str, ) -> WasmBoxedFuture<'a, Result<Option<String>, BoxError>>

The record kept under key, or None when there is none. An error means the store could not answer, and fails the request.

fn save<'a>( &'a self, key: &'a str, record: &'a str, ) -> WasmBoxedFuture<'a, Result<(), BoxError>>

Keep record under key, replacing any record there.

fn delete<'a>( &'a self, key: &'a str, ) -> WasmBoxedFuture<'a, Result<(), BoxError>>

Forget the record under key; forgetting a missing record succeeds.