Crate tokio_scoped[−][src]
A scoped tokio
Runtime that can be used to create Scope
s which can spawn futures which
can access stack data. That is, the futures spawned by the Scope
do not require the 'static
lifetime bound. This can be done safely by ensuring that the Scope
doesn't exit until all
spawned futures have finished executing. Be aware, that when a Scope
exits it will block
until every future spawned by the Scope
completes. Therefore, one should take caution when
created scopes within an asynchronous context, such as from within another spawned future.
Example
let mut v = String::from("Hello"); tokio_scoped::scope(|scope| { // Use the scope to spawn the future. scope.spawn(lazy(|| { v.push('!'); Ok(()) })); }); // The scope won't exit until all spawned futures are complete. assert_eq!(v.as_str(), "Hello!");
See also crossbeam::scope
Structs
Scope | |
ScopeBuilder |
Struct used to build scopes from a borrowed Runtime. Generally users should use the |
ScopedRuntime |
Wrapper type around a tokio Runtime which can be used to create |
Functions
scope |
Creates a |
scoped |
Borrows the Runtime to construct a |