Trait TaskInstrument

pub trait TaskInstrument:
    Send
    + Sync
    + 'static {
    // Required methods
    fn task_created<'a>(
        &self,
        parent_scope: &ScopeHandle,
        task: &mut AtomicFutureHandle<'a>,
    );
    fn scope_created(
        &self,
        scope_name: &str,
        parent_scope: Option<&ScopeHandle>,
    ) -> Box<dyn Any + Send + Sync>;
}

A trait for instrumenting the async executor.

This trait provides a way to receive callbacks for various events that occur within the executor, such as task creation, completion, and polling.

Required Methods

fn task_created<'a>( &self, parent_scope: &ScopeHandle, task: &mut AtomicFutureHandle<'a>, )

Called when a new task is created. Typically, implementers will want to call task.add_hooks() here to add hooks to the task.

fn scope_created( &self, scope_name: &str, parent_scope: Option<&ScopeHandle>, ) -> Box<dyn Any + Send + Sync>

Called when scope is created

Arguments

• scope_name: An optional name for the scope.
• parent_scope: A reference to the parent scope, or None for the root.

Returns

A boxed Any trait object representing the created scope which contains data that can later be retrieved from the scope using instrument_data() on the scope.

Implementors