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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/store/peer.ex
defmodule Elixium.Store.Peer do
use Elixium.Store
@moduledoc """
Store and load data related to peers that a node has communicated with.
This includes authentication data
"""
@store_dir "peers"
def initialize do
initialize(@store_dir)
end
def reorder_peers(ip) do
transact @store_dir do
fn ref ->
{:ok, peers} = Exleveldb.get(ref, "known_peers")
peers = :erlang.binary_to_term(peers)
peer = Enum.find(peers, &(elem(&1, 0) == ip))
Exleveldb.put(ref, "known_peers", :erlang.term_to_binary([peer | peers -- [peer]]))
end
end
end
@spec save_known_peer({charlist, integer}) :: none
def save_known_peer(peer) do
transact @store_dir do
fn ref ->
case Exleveldb.get(ref, "known_peers") do
{:ok, peers} ->
peers = Enum.uniq([peer | :erlang.binary_to_term(peers)])
Exleveldb.put(ref, "known_peers", :erlang.term_to_binary(peers))
:not_found ->
Exleveldb.put(ref, "known_peers", :erlang.term_to_binary([peer]))
end
end
end
end
def load_known_peers do
transact @store_dir do
fn ref ->
case Exleveldb.get(ref, "known_peers") do
{:ok, peers} -> :erlang.binary_to_term(peers)
:not_found -> []
end
end
end
end
end