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Elixir Z-Wave library
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lib/grizzly/unsolicited_server/socket.ex
defmodule Grizzly.UnsolicitedServer.Socket do
@moduledoc false
use GenServer
require Logger
alias Grizzly.UnsolicitedServer.{SocketSupervisor, Messages}
defmodule State do
@moduledoc false
defstruct listen_socket: nil
end
def child_spec(listen_socket) do
%{id: __MODULE__, start: {__MODULE__, :start_link, [listen_socket]}, restart: :temporary}
end
def start_link(listen_socket) do
GenServer.start_link(__MODULE__, listen_socket)
end
@impl true
def init(listen_socket) do
{:ok, %State{listen_socket: listen_socket}, {:continue, :accept}}
end
@impl true
def handle_continue(:accept, %State{listen_socket: listen_socket} = state) do
{:ok, transport_accept_sock} = :ssl.transport_accept(listen_socket)
with {:ok, _sock} <- :ssl.handshake(transport_accept_sock) do
# Start a new listen socket to replace this one as this one is now not
# open for more traffic now
{:ok, _} = SocketSupervisor.start_socket(listen_socket)
else
other ->
Logger.warn(
"grizzly: Failed to start socket. Got this on SSL handshake: #{inspect(other)}"
)
end
{:noreply, state}
end
@impl true
def handle_info({:ssl, {:sslsocket, {_, {_, {{ip, _}, _}}, _}, _}, data}, state) do
:ok = Messages.broadcast(ip, data)
{:noreply, state}
end
def handle_info({:ssl_closed, {:sslsocket, {_, {_, {{_ip, _}, _}}, _}, _}}, state) do
_ = Logger.info("grizzly: unsolicated messages closed")
{:stop, :normal, state}
end
end