Struct TaskLocal 

pub struct TaskLocal<T: 'static> { /* private fields */ }

A key for task-local storage, created by the [task_local!] macro.

Each static TaskLocal<T> has a unique address used as the storage key.

Implementations

impl<T: 'static> TaskLocal<T>

pub fn scope<F: Future>(&'static self, value: T, future: F) -> Scope<T, F>

Run future with value set for this key. Restores the previous value (if any) after each poll, so other tasks on the same thread don’t see stale data.

pub fn with<F, R>(&'static self, f: F) -> R

where F: FnOnce(&T) -> R,

Access the current value, panicking if no scope is active.

pub fn try_with<F, R>(&'static self, f: F) -> Result<R, AccessError>

where F: FnOnce(&T) -> R,

Access the current value, returning Err if no scope is active.

Trait Implementations

impl<T: 'static> Sync for TaskLocal<T>