race condition i banish thee

lib/farside/deadcheck.ex

@@ -0,0 +1,33 @@
+defmodule Farside.Server.DeadCheck do
+  @moduledoc """
+  Module to check/validate the instance list only for servers with empty instance list every 90 secs, if a sync/check process isnt already running
+  """
+  use Task
+
+  def child_spec(args) do
+    %{
+      id: __MODULE__,
+      start: {__MODULE__, :start_link, [args]},
+      type: :worker
+    }
+  end
+
+  def start_link(_arg) do
+    Task.start_link(&poll/0)
+  end
+
+  def poll() do
+    receive do
+    after
+      1_200_000 ->
+        run()
+        poll()
+    end
+  end
+
+  def run() do
+    Registry.dispatch(:status, "dead", fn entries ->
+      for {pid, _} <- entries, do: GenServer.cast(pid, :check)
+    end)
+  end
+end