f2e5af4058
This commit changes the Stream interface, so as to allow the yamux protocol to have channels. It is necessary, but touches many areas. The codebase is better for it.
76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
#pragma once
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#include "libp2p/conn/session.h"
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#include "libp2p/net/protocol.h"
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#include "libp2p/peer/peerstore.h"
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#include "libp2p/peer/providerstore.h"
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#include "libp2p/record/message.h"
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/***
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* This is where kademlia and dht talk to the outside world
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*/
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struct DhtContext {
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struct Peerstore* peer_store;
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struct ProviderStore* provider_store;
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struct Datastore* datastore;
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struct Filestore* filestore;
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};
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struct Libp2pProtocolHandler* libp2p_routing_dht_build_protocol_handler(struct Peerstore* peer_store, struct ProviderStore* provider_store,
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struct Datastore* datastore, struct Filestore* filestore);
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/**
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* Take existing stream and upgrade to the Kademlia / DHT protocol/codec
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* @param context the context
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* @returns true(1) on success, otherwise false(0)
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*/
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int libp2p_routing_dht_upgrade_stream(struct SessionContext* context);
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/**
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* Handle a client requesting an upgrade to the DHT protocol
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* @param stream the stream
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* @returns true(1) on success, otherwise false(0)
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*/
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int libp2p_routing_dht_handshake(struct Stream* stream);
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/***
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* Handle the incoming message. Handshake should have already
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* been done. We should expect that the next read contains
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* a protobuf'd kademlia message.
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* @param stream the incoming stream
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* @param protocol_context the protocol context
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* @returns true(1) on success, otherwise false(0)
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*/
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int libp2p_routing_dht_handle_message(struct Stream* stream, struct DhtContext* protocol_context);
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/***
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* Send a kademlia message
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* NOTE: this call upgrades the stream to /ipfs/kad/1.0.0
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* @param context the context
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* @param message the message
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* @returns true(1) on success, false(0) otherwise
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*/
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int libp2p_routing_dht_send_message(struct SessionContext* sessionContext, struct KademliaMessage* message);
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/**
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* Attempt to receive a kademlia message
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* NOTE: This call assumes that a send_message was sent
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* @param sessionContext the context
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* @param result where to put the results
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* @returns true(1) on success, false(0) otherwise
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*/
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int libp2p_routing_dht_receive_message(struct SessionContext* sessionContext, struct KademliaMessage** result);
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/**
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* Used to send a message to the nearest x peers
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*
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* @param private_key the private key of the local peer
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* @param peerstore the collection of peers
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* @param datastore a connection to the datastore
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* @param msg the message to send
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* @returns true(1) if we sent to at least 1, false(0) otherwise
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*/
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int libp2p_routing_dht_send_message_nearest_x(const struct Dialer* dialer, struct Peerstore* peerstore,
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struct Datastore* datastore, struct KademliaMessage* msg, int numToSend);
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