Struct EventDrivenTask 

pub struct EventDrivenTask { /* private fields */ }

A task that waits for a named event on the Context event bus before running its handler.

Events are emitted via Context::emit. This enables event-driven workflows where some tasks block until an external signal (a webhook, a human approval, another task) arrives. An optional timeout bounds the wait.

Implementations

impl EventDrivenTask

pub fn new<F, Fut>( id: impl Into<String>, event: impl Into<String>, handler: F, ) -> Self

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

Create a task that waits for event, then runs handler.

pub fn with_timeout(self, timeout: Duration) -> Self

Bound the wait for the event; on expiry the task fails with a timeout.

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 EventDrivenTask

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.