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76 lines
2.6 KiB
Go
76 lines
2.6 KiB
Go
// Package host provides the core Host interface for libp2p.
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//
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// Host represents a single libp2p node in a peer-to-peer network.
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package host
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import (
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"context"
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"github.com/libp2p/go-libp2p/core/connmgr"
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"github.com/libp2p/go-libp2p/core/event"
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"github.com/libp2p/go-libp2p/core/network"
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"github.com/libp2p/go-libp2p/core/peer"
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"github.com/libp2p/go-libp2p/core/peerstore"
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"github.com/libp2p/go-libp2p/core/protocol"
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ma "github.com/multiformats/go-multiaddr"
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)
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// Host is an object participating in a p2p network, which
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// implements protocols or provides services. It handles
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// requests like a Server, and issues requests like a Client.
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// It is called Host because it is both Server and Client (and Peer
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// may be confusing).
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type Host interface {
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// ID returns the (local) peer.ID associated with this Host
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ID() peer.ID
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// Peerstore returns the Host's repository of Peer Addresses and Keys.
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Peerstore() peerstore.Peerstore
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// Returns the listen addresses of the Host
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Addrs() []ma.Multiaddr
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// Networks returns the Network interface of the Host
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Network() network.Network
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// Mux returns the Mux multiplexing incoming streams to protocol handlers
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Mux() protocol.Switch
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// Connect ensures there is a connection between this host and the peer with
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// given peer.ID. Connect will absorb the addresses in pi into its internal
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// peerstore. If there is not an active connection, Connect will issue a
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// h.Network.Dial, and block until a connection is open, or an error is
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// returned. // TODO: Relay + NAT.
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Connect(ctx context.Context, pi peer.AddrInfo) error
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// SetStreamHandler sets the protocol handler on the Host's Mux.
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// This is equivalent to:
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// host.Mux().SetHandler(proto, handler)
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// (Thread-safe)
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SetStreamHandler(pid protocol.ID, handler network.StreamHandler)
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// SetStreamHandlerMatch sets the protocol handler on the Host's Mux
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// using a matching function for protocol selection.
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SetStreamHandlerMatch(protocol.ID, func(protocol.ID) bool, network.StreamHandler)
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// RemoveStreamHandler removes a handler on the mux that was set by
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// SetStreamHandler
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RemoveStreamHandler(pid protocol.ID)
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// NewStream opens a new stream to given peer p, and writes a p2p/protocol
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// header with given ProtocolID. If there is no connection to p, attempts
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// to create one. If ProtocolID is "", writes no header.
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// (Thread-safe)
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NewStream(ctx context.Context, p peer.ID, pids ...protocol.ID) (network.Stream, error)
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// Close shuts down the host, its Network, and services.
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Close() error
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// ConnManager returns this hosts connection manager
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ConnManager() connmgr.ConnManager
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// EventBus returns the hosts eventbus
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EventBus() event.Bus
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}
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