P2P

Kademlia based p2p network.

Installation

P2P requires to compile:

• boost 1.68+
• cmake 3.13+
• compiler with C++17 support

$ git clone https://github.com/SychevS/p2p.git
$ cd p2p
$ git submodule update --init --recursive
$ mkdir build
$ cd build
$ cmake -DBOOST_ROOT=${BOOST_ROOT} -DCMAKE_INSTALL_PREFIX=${P2P_INSTALL_ROOT} ..
$ cmake --build . --target install

Basic usage

Lets suppose that we are going to connect only two nodes.

First node:

#include<p2p_network.h>usingnamespacenet;
NodeId GenerateRandomId();
NodeId GetFirstNodeId();
NodeId GetSecondNodeId();
voidStartMainEventLoop();
classHost : publicEventHandler {
voidOnNodeDiscovered(const NodeId&) {
std::cout << "Node discovered" << std::endl;
}
voidOnNodeRemoved(const NodeId&) {}
voidOnMessageReceived(const NodeId& from, ByteVector&& message) {}
voidOnFragmentFound(const FragmentId&, ByteVector&& value) {}
voidOnFragmentNotFound(const FragmentId& id) {}
FragmentId GetFragmentId(const ByteVector& fragment) {
returnGenerateRandomId();
}
};
intmain() {
net::ManagerConfig config {
GetFirstNodeId(),
6100,
{{GetSecondNodeId(), "127.0.0.1", 6101}},
false
};
Host host;
Manager netman(config, host);
netman.Start();
StartMainEventLoop();
}

Main of second node:

intmain() {
net::ManagerConfig config {
GetSecondNodeId(),
6101,
{{GetFirstNodeId(), "127.0.0.1", 6100}},
false
};
Host host;
Manager netman(config, host);
netman.Start();
StartMainEventLoop();
}

Now after discovery these two nodes will be able to communicate with each other using Manager's class interface. For more details see include/p2p_network.h