pub struct TaskLocalFuture<T, F>where
    T: 'static,
{ /* private fields */ }
Expand description

A future that sets a value T of a task local for the future F during its execution.

The value of the task-local must be 'static and will be dropped on the completion of the future.

Created by the function LocalKey::scope.

Examples

tokio::task_local! {
    static NUMBER: u32;
}

NUMBER.scope(1, async move {
    println!("task local value: {}", NUMBER.get());
}).await;

Trait Implementations§

Formats the value using the given formatter. Read more
Executes the destructor for this type. Read more
The type of value produced on completion.
Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The output that the future will produce on completion.
Which kind of future are we turning this into?
Creates a future from a value. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.