Struct LoopTask 

pub struct LoopTask { /* private fields */ }

A task that runs body repeatedly until break_when returns true or the iteration count reaches max_iterations.

The body receives the zero-based iteration index. The task output is {"iterations": <n>, "last": <last body output>, "broke_early": <bool>}. Cancellation is honored between iterations.

Implementations

impl LoopTask

pub fn new<F, Fut>(id: impl Into<String>, max_iterations: u32, body: F) -> Self

where F: Fn(Arc<Context>, u32) -> Fut + Send + Sync + 'static, Fut: Future<Output = Result<TaskOutput, TaskError>> + Send + 'static,

Create a loop task.

pub fn with_break<F>(self, break_when: F) -> Self

where F: Fn(&TaskOutput) -> bool + Send + Sync + 'static,

Set the early-exit predicate, evaluated against each body output.

pub fn with_deps<I, S>(self, deps: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Declare dependencies.

pub fn with_priority(self, priority: u8) -> Self

Set scheduling priority.

Trait Implementations

impl Task for LoopTask

fn id(&self) -> &str

Stable, unique identifier for this task within a DAG.

fn dependencies(&self) -> Vec<String>

Ids of tasks that must complete successfully before this one runs.

fn priority(&self) -> u8

Scheduling priority; higher values are scheduled first among ready tasks.

fn execute<'life0, 'async_trait>( &'life0 self, ctx: Arc<Context>, ) -> Pin<Box<dyn Future<Output = Result<TaskOutput, TaskError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Execute the task.