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The core package for the Elixium blockchain, containing all the modules needed to run the chain
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lib/p2p/host_availability/host_availability.ex
defmodule Elixium.HostAvailability do
use GenServer
require IEx
require Logger
def start_link(_args) do
{:ok, socket} = :gen_tcp.listen(31014, [:binary, active: true, reuseaddr: true])
GenServer.start_link(__MODULE__, socket, name: __MODULE__)
end
def init(socket) do
Process.send_after(self(), :start_accept, 1000)
{:ok, %{listen: socket}}
end
def handle_info(:start_accept, state) do
{:ok, socket} = :gen_tcp.accept(state.listen)
state = Map.put(state, :socket, socket)
{:noreply, state}
end
def handle_info({:tcp, _, <<0>>}, state) do
:gen_tcp.send(state.socket, <<1>>)
:timer.sleep(1000)
:gen_tcp.close(state.socket)
{:ok, socket} = :gen_tcp.accept(state.listen)
state = Map.put(state, :socket, socket)
{:noreply, state}
end
def handle_info({:tcp, _, _}, state), do: {:noreply, state}
end