Fix double ctrl-c kill (#2634)

sanic/worker/manager.py

@@ -40,7 +40,7 @@ class WorkerManager:
         self.monitor_publisher, self.monitor_subscriber = monitor_pubsub
         self.worker_state = worker_state
         self.worker_state[self.MAIN_IDENT] = {"pid": self.pid}
-        self.terminated = False
+        self._shutting_down = False
         self._serve = serve
         self._server_settings = server_settings
         self._server_count = count()
@@ -116,10 +116,9 @@ class WorkerManager:
             self.join()
 
     def terminate(self):
-        if not self.terminated:
+        if not self._shutting_down:
             for process in self.processes:
                 process.terminate()
-        self.terminated = True
 
     def restart(
         self,
@@ -257,7 +256,7 @@ class WorkerManager:
         raise ServerKilled
 
     def shutdown_signal(self, signal, frame):
-        if self.terminated:
+        if self._shutting_down:
             logger.info("Shutdown interrupted. Killing.")
             with suppress(ServerKilled):
                 self.kill()
@@ -270,6 +269,7 @@ class WorkerManager:
         for process in self.processes:
             if process.is_alive():
                 process.terminate()
+        self._shutting_down = True
 
     @property
     def pid(self):

tests/worker/test_manager.py

@@ -33,9 +33,7 @@ def test_terminate(os_mock: Mock):
     context = Mock()
     context.Process.return_value = process
     manager = WorkerManager(1, fake_serve, {}, context, (Mock(), Mock()), {})
-    assert manager.terminated is False
     manager.terminate()
-    assert manager.terminated is True
     os_mock.kill.assert_called_once_with(1234, SIGINT)
 
 
@@ -63,6 +61,24 @@ def test_kill(os_mock: Mock):
     os_mock.kill.assert_called_once_with(1234, SIGKILL)
 
 
+@patch("sanic.worker.process.os")
+@patch("sanic.worker.manager.os")
+def test_shutdown_signal_send_kill(
+    manager_os_mock: Mock, process_os_mock: Mock
+):
+    process = Mock()
+    process.pid = 1234
+    context = Mock()
+    context.Process.return_value = process
+    manager = WorkerManager(1, fake_serve, {}, context, (Mock(), Mock()), {})
+    assert manager._shutting_down is False
+    manager.shutdown_signal(SIGINT, None)
+    assert manager._shutting_down is True
+    process_os_mock.kill.assert_called_once_with(1234, SIGINT)
+    manager.shutdown_signal(SIGINT, None)
+    manager_os_mock.kill.assert_called_once_with(1234, SIGKILL)
+
+
 def test_restart_all():
     p1 = Mock()
     p2 = Mock()