Handle interrupts

lib/mix/lib/mix/lock.ex

@@ -200,6 +200,9 @@ defmodule Mix.Lock do
  _ = :gen_tcp.send(socket, @probe_data)
  accept_loop(listen_socket)
 
+ {:error, :eintr} ->
+ accept_loop(listen_socket)
+
  {:error, reason} when reason in [:closed, :einval] ->
  :ok
  end
@@ -244,6 +247,9 @@ defmodule Mix.Lock do
  :gen_tcp.close(socket)
  {:error, :unexpected_port_owner}
 
+ {:error, :eintr} ->
+ await_probe_data(socket)
+
  {:error, reason} ->
  :gen_tcp.close(socket)
  {:error, reason}
@@ -272,6 +278,9 @@ defmodule Mix.Lock do
  {:error, :closed} ->
  :ok
 
+ {:error, :eintr} ->
+ await_close(socket)
+
  {:error, _other} ->
  # In case of an unexpected error, we close the socket ourselves
  # to retry