Module spi 

Service-provider interfaces for custom executor implementations.

These low-level building blocks are intended for crates that implement executor services or execution strategies. Ordinary users should prefer TaskHandle, TrackedTask, and the executor/service traits.

Structs

TaskEndpointPair

One-shot pair of endpoints for a task submission.

TaskRunner

Runner that executes a callable task with standard task-handle semantics.

TaskSlot

Runner-side slot for one task submission.

Traits

TaskResultHandle

Common interface for handles that expose a submitted task’s final result.

TrackedTaskHandle

Extension interface for handles that expose active task tracking.