init

.formatter.exs

@@ -0,0 +1,4 @@
+# Used by "mix format"
+[
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]

.gitignore

@@ -0,0 +1,23 @@
+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where third-party dependencies like ExDoc output generated docs.
+/doc/
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+warden-*.tar
+
+# Temporary files, for example, from tests.
+/tmp/

README.md

@@ -0,0 +1,21 @@
+# Warden
+
+**TODO: Add description**
+
+## Installation
+
+If [available in Hex](https://hex.pm/docs/publish), the package can be installed
+by adding `warden` to your list of dependencies in `mix.exs`:
+
+```elixir
+def deps do
+  [
+    {:warden, "~> 0.1.0"}
+  ]
+end
+```
+
+Documentation can be generated with [ExDoc](https://github.com/elixir-lang/ex_doc)
+and published on [HexDocs](https://hexdocs.pm). Once published, the docs can
+be found at <https://hexdocs.pm/warden>.
+

lib/server/connection/conn.ex

@@ -0,0 +1,34 @@
+defmodule Server.Conn do
+  require Logger
+  use GenServer
+
+  @impl true
+  def init(_args) do
+    initial_state = %{"num_conns" => 0}
+    {:ok, initial_state}
+  end
+
+  @impl true
+  def handle_call(_socket, _from, _state) do
+    throw("call is unimplementedd")
+  end
+
+  @impl true
+  def handle_cast(socket, state) do
+    spawn(handle(socket))
+
+    %{"num_conns" => state.num_conns + 1}
+  end
+
+  defp handle(socket) do
+    case :gen_tcp.recv(socket, 1024) do
+      {:ok, packet} ->
+        Logger.debug("[Server.Conn] packet #{packet}")
+      {:error, reason} ->
+        Logger.error("[Server.Conn] failed to read connection: #{reason}")
+
+    end
+
+    handle(socket)
+  end
+end

lib/server/server.ex

@@ -0,0 +1,17 @@
+defmodule Server do
+  def start(addr) do
+    accept_loop(addr)
+  end
+
+  defp accept_loop(addr) do
+    case :gen_tcp.accept(addr) do
+      {:ok, socket} ->
+        accept(socket)
+    end
+    accept_loop(addr)
+  end
+
+  defp accept(socket) do
+    send(Server.Conn, socket)
+  end
+end

lib/warden.ex

@@ -0,0 +1,10 @@
+defmodule Warden do
+  use Application
+
+  def start(_type, _args) do
+    children = [
+      Server,
+    ]
+    Supervisor.start_link(children, strategy: :one_for_one)
+  end
+end

mix.exs

@@ -0,0 +1,29 @@
+defmodule Warden.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :warden,
+      version: "0.1.0",
+      elixir: "~> 1.18",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  # Run "mix help compile.app" to learn about applications.
+  def application do
+    [
+      mod: {Warden, []},
+      extra_applications: [:logger]
+    ]
+  end
+
+  # Run "mix help deps" to learn about dependencies.
+  defp deps do
+    [
+      # {:dep_from_hexpm, "~> 0.3.0"},
+      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
+    ]
+  end
+end

test/test_helper.exs

@@ -0,0 +1 @@
+ExUnit.start()

test/warden_test.exs

@@ -0,0 +1,8 @@
+defmodule WardenTest do
+  use ExUnit.Case
+  doctest Warden
+
+  test "greets the world" do
+    assert Warden.hello() == :world
+  end
+end