// Copyright 2019 Parity Technologies (UK) Ltd.
//
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// copy of this software and associated documentation files (the "Software"),
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// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
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//! Management of tasks handling nodes.
//!
//! The core type is a [`task::Task`], which implements [`futures::Future`]
//! and connects and handles a node. A task receives and sends messages
//! ([`tasks::FromTaskMessage`], [`tasks::ToTaskMessage`]) to the outside.
//!
//! A set of tasks is managed by a [`Manager`] which creates tasks when a
//! node should be connected to (cf. [`Manager::add_reach_attempt`]) or
//! an existing connection to a node should be driven forward (cf.
//! [`Manager::add_connection`]). Tasks can be referred to by [`TaskId`]
//! and messages can be sent to individual tasks or all (cf.
//! [`Manager::poll_broadcast`]). Messages produces by tasks can be
//! retrieved by polling the manager (cf. [`Manager::poll`]).

mod error;
mod manager;
mod task;

pub use error::Error;
pub use manager::{ClosedTask, TaskEntry, Manager, Event};

/// Task identifier.
#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
pub struct TaskId(usize);