// Copyright 2018 Parity Technologies (UK) Ltd.
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//! Implementation of the libp2p-specific Kademlia protocol.
// TODO: we allow dead_code for now because this library contains a lot of unused code that will
// be useful later for record store
pub use Addresses;
pub use ;
pub use ;
pub use QueryId;
pub use KadConnectionType;
pub use ;
use NonZeroUsize;
/// The `k` parameter of the Kademlia specification.
///
/// This parameter determines:
///
/// 1) The (fixed) maximum number of nodes in a bucket.
/// 2) The (default) replication factor, which in turn determines:
/// a) The number of closer peers returned in response to a request.
/// b) The number of closest peers to a key to search for in an iterative query.
///
/// The choice of (1) is fixed to this constant. The replication factor is configurable
/// but should generally be no greater than `K_VALUE`. All nodes in a Kademlia
/// DHT should agree on the choices made for (1) and (2).
///
/// The current value is `20`.
pub const K_VALUE: NonZeroUsize = unsafe ;
/// The `α` parameter of the Kademlia specification.
///
/// This parameter determines the default parallelism for iterative queries,
/// i.e. the allowed number of in-flight requests that an iterative query is
/// waiting for at a particular time while it continues to make progress towards
/// locating the closest peers to a key.
///
/// The current value is `3`.
pub const ALPHA_VALUE: NonZeroUsize = unsafe ;