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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| defmodule LambdaEthereumConsensus.P2P.Metadata do | ||
| @moduledoc """ | ||
| This module handles Metadata's genserver to fetch and edit. | ||
| """ | ||
|
|
||
| use GenServer | ||
|
|
||
| alias LambdaEthereumConsensus.Utils.BitVector | ||
| alias Types.Metadata | ||
|
|
||
| ########################## | ||
| ### Public API | ||
| ########################## | ||
|
|
||
| def start_link(opts) do | ||
| GenServer.start_link(__MODULE__, opts, name: __MODULE__) | ||
| end | ||
|
|
||
| @spec get_seq_number() :: Types.uint64() | ||
| def get_seq_number do | ||
| GenServer.call(__MODULE__, {:get_seq_number}) | ||
| end | ||
|
|
||
| @spec get_metadata() :: Metadata.t() | ||
| def get_metadata do | ||
| GenServer.call(__MODULE__, :get_metadata) | ||
| end | ||
|
|
||
| @spec set_attestation_subnet(integer(), boolean()) :: any() | ||
| def set_attestation_subnet(i, set) do | ||
| GenServer.call(__MODULE__, {:set_attestation_subnet, i, set}) | ||
| end | ||
|
|
||
| @spec set_sync_committee(integer(), boolean()) :: any() | ||
| def set_sync_committee(i, set) do | ||
| GenServer.call(__MODULE__, {:set_sync_committee, i, set}) | ||
| end | ||
|
|
||
| ########################## | ||
| ### GenServer Callbacks | ||
| ########################## | ||
|
|
||
| @impl true | ||
| def init(_opts) do | ||
| {:ok, | ||
| %Metadata{ | ||
| seq_number: 0, | ||
| attnets: BitVector.new(0, ChainSpec.get("ATTESTATION_SUBNET_COUNT")), | ||
| syncnets: BitVector.new(0, Constants.sync_committee_subnet_count()) | ||
| }} | ||
| end | ||
|
|
||
| @impl true | ||
| def handle_call({:get_seq_number}, _from, metadata) do | ||
| seq_number = Map.fetch!(metadata, :seq_number) | ||
| {:reply, seq_number, metadata} | ||
| end | ||
|
|
||
| @impl true | ||
| def handle_call(:get_metadata, _from, metadata) do | ||
| {:reply, metadata} | ||
| end | ||
|
|
||
| @impl true | ||
| def handle_cast({:set_attestation_subnet, i, set}, metadata) do | ||
| attnets = set_or_clear(metadata.attnets, i, set) | ||
|
|
||
| {:noreply, | ||
| %{ | ||
| metadata | ||
| | attnets: attnets, | ||
| seq_number: metadata.seq_number + 1 | ||
| }} | ||
| end | ||
|
|
||
| @impl true | ||
| def handle_cast({:set_sync_committee, i, set}, metadata) do | ||
| syncnets = set_or_clear(metadata.syncnets, i, set) | ||
|
|
||
| {:noreply, | ||
| %{ | ||
| metadata | ||
| | syncnets: syncnets, | ||
| seq_number: metadata.seq_number + 1 | ||
| }} | ||
| end | ||
|
|
||
| ########################## | ||
| ### Private Functions | ||
| ########################## | ||
|
|
||
| @spec set_or_clear(BitVector.t(), integer(), boolean()) :: BitVector.t() | ||
| defp set_or_clear(bitvector, i, set) do | ||
| if set do | ||
| BitVector.set(bitvector, i) | ||
| else | ||
| BitVector.clear(bitvector, i) | ||
| end | ||
| end | ||
| end |