Trait LocalRuntimeFactory 

pub trait LocalRuntimeFactory: Runtime {
    type LocalMutex<T: 'static>: LocalMutexLike<T>;
    type LocalNotify: LocalNotifyLike;

    // Required methods
    fn new_local_mutex<T: 'static>(value: T) -> Self::LocalMutex<T>;
    fn new_local_notify() -> Self::LocalNotify;
}

Sibling extension of Runtime for runtimes that pin tasks to a single core (prime’s per-core executor, embedded runtimes with no multi-thread executor at all). Provides non-Send primitive factories that skip the atomic synchronization a Send-shaped primitive needs.

TokioPerCoreRuntime does NOT impl this trait because its multi-thread runtime can move tasks across cores; the !Send guards would be a soundness bug. Prime opts in because its spawn_on_current_core keeps the future pinned to one thread.

Perf claim: the Local primitives use Rc<RefCell<T>> shape without any atomic operations on the lock state. Whether this is measurably faster than RuntimeFactory::Mutex<T> on the uncontended fast path is a question the bench harness has to answer; the API exists so the option can be measured (and so callers can express the single-core constraint at the type level).

Required Associated Types

type LocalMutex<T: 'static>: LocalMutexLike<T>

type LocalNotify: LocalNotifyLike

Required Methods

fn new_local_mutex<T: 'static>(value: T) -> Self::LocalMutex<T>

fn new_local_notify() -> Self::LocalNotify

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors