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RuntimeDriver

lenso_kernel

Trait RuntimeDriver 

Source 
pub trait RuntimeDriver: Clone + 'static {
    // Required methods
    fn now(&self) -> Duration;
    fn sleep_until(&self, deadline: Duration) -> LocalBoxFuture<'static, ()>;
    fn yield_now(&self) -> LocalBoxFuture<'static, ()>;
    fn spawn_local(&self, task: LocalTask) -> Result<DriverTask, SpawnError>;
    fn shutdown_requested(&self) -> bool;

    // Provided methods
    fn wait_for_runtime_event(
        &self,
        _deadline: Duration,
    ) -> LocalBoxFuture<'static, ()> { ... }
    fn jitter(&self, _maximum: Duration) -> Duration { ... }
}
Expand description

Host facilities required to advance the portable Kernel.

Required Methods§

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fn now(&self) -> Duration

Returns the current monotonic instant relative to Driver startup.

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fn sleep_until(&self, deadline: Duration) -> LocalBoxFuture<'static, ()>

Waits until the supplied monotonic instant.

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fn yield_now(&self) -> LocalBoxFuture<'static, ()>

Cooperatively yields to other work on the local task lane.

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fn spawn_local(&self, task: LocalTask) -> Result<DriverTask, SpawnError>

Schedules Kernel-owned work on the local task lane.

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fn shutdown_requested(&self) -> bool

Reports whether the embedding Runner requested shutdown.

Provided Methods§

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fn wait_for_runtime_event( &self, _deadline: Duration, ) -> LocalBoxFuture<'static, ()>

Waits for Runner control work or until the supplied monotonic instant.

Drivers with an event source should override this to park the lane. The yielding default preserves compatibility with deterministic and embedded Drivers that advance work cooperatively.

Source

fn jitter(&self, _maximum: Duration) -> Duration

Supplies deterministic or entropy-backed jitter bounded by the policy value.

Dyn Compatibility§

This trait is not dyn compatible.

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

Implementors§