83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
#pragma once
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#include "libp2p/net/protocol.h"
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#include "libp2p/net/stream.h"
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#include "libp2p/yamux/stream.h"
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/***
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* Declarations for the Yamux protocol
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*/
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static const int yamux_default_timeout = 10;
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static const char YAMUX_CONTEXT = 'Y';
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static const char YAMUX_CHANNEL_CONTEXT = 'C';
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/***
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* Context struct for Yamux
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*/
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struct YamuxContext {
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char type;
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struct Stream* stream;
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struct yamux_session* session;
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struct Libp2pVector* channels;
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};
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struct YamuxChannelContext {
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char type;
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struct YamuxContext* yamux_context;
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// this stream
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struct Stream* stream;
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// the child protocol's stream
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struct Stream* child_stream;
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// the channel number
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int channel;
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// the window size for this channel
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int window_size;
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// the state of the connection
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int state;
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// whether or not the connection is closed
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int closed;
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};
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/**
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* Build a handler that can handle the yamux protocol
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*/
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struct Libp2pProtocolHandler* libp2p_yamux_build_protocol_handler();
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/***
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* Send the yamux protocol out the default stream
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* NOTE: if we initiate the connection, we should expect the same back
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* @param stream the stream
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* @returns true(1) on success, false(0) otherwise
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*/
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int yamux_send_protocol(struct Stream* stream);
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/***
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* Check to see if the reply is the yamux protocol header we expect
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* NOTE: if we initiate the connection, we should expect the same back
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* @param context the SessionContext
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* @returns true(1) on success, false(0) otherwise
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*/
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int yamux_receive_protocol(struct YamuxContext* context);
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struct Stream* libp2p_yamux_stream_new(struct Stream* parent_stream);
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void libp2p_yamux_stream_free(struct Stream* stream);
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/****
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* Add a stream "channel" to the yamux handler
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* @param ctx the context
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* @param stream the stream to add
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* @returns true(1) on success, false(0) otherwise
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*/
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int libp2p_yamux_stream_add(struct YamuxContext* ctx, struct Stream* stream);
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/**
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* Create a stream that has a "YamuxChannelContext" related to this yamux protocol
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* @param parent_stream the parent yamux stream
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* @returns a new Stream that is a YamuxChannelContext
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*/
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struct Stream* libp2p_yamux_channel_new(struct Stream* parent_stream);
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void libp2p_yamux_channel_free(struct YamuxChannelContext* ctx);
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