Module fumio_utils::current

Generic implementation for "current" (thread-local) instances for "executor" handles.

Requires a futures_executor::Enter reference to set.

Example

pub struct Handle;

use futures_executor::Enter;
use fumio_utils::current::Current;

thread_local! {
    static CURRENT: Current<Handle> = Current::new();
}

pub fn enter<F, R>(handle: Handle, enter: &mut Enter, f: F) -> R
where
    F: FnOnce(&mut Enter) -> R
{
    Current::enter(&CURRENT, enter, handle, f)
}

pub fn with_current_handle<F, R>(f: F) -> R
where
    F: FnOnce(Option<&Handle>) -> R,
{
    Current::with(&CURRENT, f)
}

Structs

Current

Holds a value when entered or nothing when not.