45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
#pragma once
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/**
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* Implements an interface to connect and talk to different nodes.
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* A Dialer will connect, and return a Connection structure
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*/
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#include "libp2p/conn/transport_dialer.h"
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#include "multiaddr/multiaddr.h"
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struct Connection {
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int socket_handle;
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/**
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* Read from the stream
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* @param socket_handle the socket to read from
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* @param in what was read in NOTE: this allocates memory
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* @param in_size the number of bytes read in
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* @returns number of bytes written or negative number on error
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*/
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int (*read)(const struct Connection* conn, char** in, size_t* in_size);
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/**
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* Write to the stream
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* @param socket_handle the socket to write to
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* @param out the bytes to write to the stream
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* @param out_size the number of bytes to write
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* @returns 0 on success, otherwise an error code
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*/
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int (*write)(const struct Connection* conn, char* out, size_t out_size);
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};
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/**
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* creates a new connection
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* @param transport_dialer the TransportDialer to use
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* @param multiaddress the destination
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* @returns a connection that is ready to be read from / written to
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*/
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struct Connection* libp2p_conn_connection_new(struct TransportDialer* transport_dialer, struct MultiAddress* multiaddress);
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/***
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* close a connection and dispose of struct
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* @param connection the resource to clean up
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*/
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void libp2p_conn_connection_free(struct Connection* connection);
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