Move everything to subdirectory

1 files changed, 0 insertions, 243 deletions

diff --git a/lib/manager.ex b/lib/manager.ex
deleted file mode 100644
index 82984d6..0000000
--- a/lib/manager.ex
+++ /dev/null
@@ -1,243 +0,0 @@
-defmodule Shard.Manager do
-  @moduledoc"""
-    Maintains several important tables :
-
-    - :peer_db
-      
-      List of
-        { id, {conn_pid, con_start, conn_n_msg} | nil, ip, port, last_seen }
-
-    - :shard_db
-    
-      List of
-        { id, manifest, pid | nil }
-
-    - :shard_procs
-
-      List of
-        { {id, path}, pid }
-
-    - :shard_peer_db
-
-      Mult-list of
-        { shard_id, peer_id }
-
-
-    And an internal table :
-
-    - :outbox
-      
-      Multi-list of
-        { peer_id, message }
-
-  """
-
-  use GenServer
-
-  require Logger
-
-  def start_link(my_port) do
-    GenServer.start_link(__MODULE__, my_port, name: __MODULE__)
-  end
-
-  def init(my_port) do
-    :ets.new(:peer_db, [:set, :protected, :named_table])
-    :ets.new(:shard_db, [:set, :protected, :named_table])
-    :ets.new(:shard_procs, [:set, :protected, :named_table])
-    :ets.new(:shard_peer_db, [:bag, :protected, :named_table])
-    outbox = :ets.new(:outbox, [:bag, :private])
-
-    {:ok, %{my_port: my_port, outbox: outbox} }
-  end
-
-  def handle_call({:register, shard_id, manifest, pid}, _from, state) do
-    will_live = case :ets.lookup(:shard_db, shard_id) do
-      [{ ^shard_id, _, pid }] -> not Process.alive?(pid)
-      _ -> true
-    end
-    reply = if will_live do
-      Process.monitor(pid)
-      :ets.insert(:shard_db, {shard_id, manifest, pid})
-      :ok
-    else
-      :redundant
-    end
-    {:reply, reply, state}
-  end
-
-  def handle_cast({:dispatch_to, shard_id, path, pid}, state) do
-    :ets.insert(:shard_procs, { {shard_id, path}, pid })
-    Process.monitor(pid)
-    {:noreply, state}
-  end
-
-  def handle_cast({:interested, peer_id, shards}, state) do
-    for shard_id <- shards do
-      case :ets.lookup(:shard_db, shard_id) do
-        [{ ^shard_id, _, pid }] ->
-          :ets.insert(:shard_peer_db, {shard_id, peer_id})
-          GenServer.cast(pid, {:interested, peer_id})
-        [] -> nil
-      end
-    end
-    {:noreply, state}
-  end
-
-  def handle_cast({:not_interested, peer_id, shard_id}, state) do
-    :ets.match_delete(:shard_peer_db, {shard_id, peer_id})
-    {:noreply, state}
-  end
-
-  def handle_cast({:shard_peer_db_insert, shard_id, peer_id}, state) do
-    :ets.insert(:shard_peer_db, {shard_id, peer_id})
-    {:noreply, state}
-  end
-
-  def handle_cast({:peer_up, pk, pid, ip, port}, state) do
-    for [pk2] <- :ets.match(:peer_db, {:'$1', :_, ip, port}) do
-      if pk2 != pk do
-        # obsolete peer information
-        :ets.delete(:peer_db, pk2)
-        :ets.match_delete(:shard_peer_db, {:_, pk2})
-      end
-    end
-    :ets.insert(:peer_db, {pk, pid, ip, port})
-
-    # Send interested message for all our shards
-    id_list = (for {id, _, _} <- :ets.tab2list(:shard_db), do: id)
-    GenServer.cast(pid, {:send_msg, {:interested, id_list}})
-
-    # Send queued messages
-    for {_, msg, _} <- :ets.lookup(state.outbox, pk) do
-      GenServer.cast(pid, {:send_msg, msg})
-    end
-    :ets.delete(state.outbox, pk)
-
-    {:noreply, state}
-  end
-
-  def handle_cast({:peer_down, pk, ip, port}, state) do
-    :ets.insert(:peer_db, {pk, nil, ip, port})
-    {:noreply, state}
-  end
-
-  def handle_cast({:connect_and_send, peer_id, msg}, state) do
-    case :ets.lookup(:peer_db, peer_id) do
-      [{^peer_id, nil, ip, port}] ->
-        add_peer(ip, port, state)
-        currtime = System.os_time :second
-        :ets.insert(state.outbox, {peer_id, msg, currtime})
-        outbox_cleanup = [{{:_, :_, :'$1'},
-                           [{:<, :'$1', currtime - 60}],
-                           [:'$1']}]
-        :ets.select_delete(state.outbox, outbox_cleanup)
-      _ ->
-        Logger.info "Dropping message #{inspect msg} for peer #{inspect peer_id}: peer not in database"
-    end
-    {:noreply, state}
-  end
-
-  def handle_cast({:try_connect, pk_list}, state) do
-    for pk <- pk_list do
-      case :ets.lookup(:peer_db, pk) do
-        [{^pk, nil, ip, port}] ->
-          add_peer(ip, port, state)
-        _ -> nil
-      end
-    end
-    {:noreply, state}
-  end
-
-  def handle_cast({:add_peer, ip, port}, state) do
-    add_peer(ip, port, state)
-    {:noreply, state}
-  end
-
-  def handle_info({:DOWN, _, :process, pid, _}, state) do
-    :ets.match_delete(:shard_procs, {:_, pid})
-    {:noreply, state}
-  end
-
-  defp add_peer(ip, port, state) do
-    spawn fn ->
-      case :gen_tcp.connect(ip, port, [:binary, packet: 2, active: false]) do
-        {:ok, client} ->
-          {:ok, pid} = DynamicSupervisor.start_child(Shard.DynamicSupervisor, {SNet.TCPConn, %{socket: client, my_port: state.my_port}})
-          :ok = :gen_tcp.controlling_process(client, pid)
-        _ ->
-          Logger.info "Could not connect to #{inspect ip}:#{port}, some messages may be dropped"
-        end
-    end
-  end
-
-
-  # ================
-  # PUBLIC INTERFACE
-  # ================
-  
-
-  @doc"""
-  Connect to a peer specified by ip address and port
-  """
-  def add_peer(ip, port) do
-    GenServer.cast(__MODULE__, {:add_peer, ip, port})
-  end
-
-  @doc"""
-  Send message to a peer specified by peer id
-  """
-  def send(peer_id, msg) do
-    case :ets.lookup(:peer_db, peer_id) do
-      [{ ^peer_id, pid, _, _}] when pid != nil->
-        GenServer.cast(pid, {:send_msg, msg})
-      _ -> 
-        GenServer.cast(__MODULE__, {:connect_and_send, peer_id, msg})
-    end
-  end
-
-  @doc"""
-  Dispatch incoming message to correct shard process
-  """
-  def dispatch(peer_id, {shard_id, path, msg}) do
-    case :ets.lookup(:shard_db, shard_id) do
-      [] ->
-        __MODULE__.send(peer_id, {:not_interested, shard_id})
-      [_] ->
-        case :ets.match(:shard_peer_db, {shard_id, peer_id}) do
-          [] ->
-            GenServer.cast(__MODULE__, {:shard_peer_db_insert, shard_id, peer_id})
-          _ -> nil
-        end
-        case :ets.lookup(:shard_procs, {shard_id, path}) do
-          [{ {^shard_id, ^path}, pid }] ->
-            GenServer.cast(pid, {:msg, peer_id, shard_id, path, msg})
-          [] ->
-            Logger.info("Warning: dropping message for #{inspect shard_id}/#{inspect path}, no handler running.\n\t#{inspect msg}")
-        end
-    end
-  end
-
-  def dispatch(peer_id, {:interested, shards}) do
-    GenServer.cast(__MODULE__, {:interested, peer_id, shards})
-  end
-
-  def dispatch(peer_id, {:not_interested, shard}) do
-    GenServer.cast(__MODULE__, {:not_interested, peer_id, shard})
-  end
-
-  @doc"""
-  Register a process as the main process for a shard.
-
-  Returns either :ok or :redundant, in which case the process must exit.
-  """
-  def register(shard_id, manifest, pid) do
-    GenServer.call(__MODULE__, {:register, shard_id, manifest, pid})
-  end
-
-  @doc"""
-  Register a process as the handler for shard packets for a given path.
-  """
-  def dispatch_to(shard_id, path, pid) do
-    GenServer.cast(__MODULE__, {:dispatch_to, shard_id, path, pid})
-  end
-end