Rename deadline parameter to more accurate timeout

Change-Id: If57fb3ada65b658bd4b5cca62ec22485f431d2a4
Signed-off-by: Kamil Sambor <kamil.sambor@gmail.com>

nova/compute/manager.py

@@ -504,7 +504,7 @@ class ComputeVirtAPI(virtapi.VirtAPI):
                 break
 
     @contextlib.contextmanager
-    def wait_for_instance_event(self, instance, event_names, deadline=300,
+    def wait_for_instance_event(self, instance, event_names, timeout=300,
                                 error_callback=None):
         """Plan to wait for some events, run some code, then wait.
 
@@ -542,7 +542,7 @@ class ComputeVirtAPI(virtapi.VirtAPI):
         :param event_names: A list of event names. Each element is a
                             tuple of strings to indicate (name, tag),
                             where name is required, but tag may be None.
-        :param deadline: Maximum number of seconds we should wait for all
+        :param timeout: Maximum number of seconds we should wait for all
                          of the specified events to arrive.
         :param error_callback: A function to be called if an event arrives
 
@@ -564,7 +564,7 @@ class ComputeVirtAPI(virtapi.VirtAPI):
                 # NOTE(danms): Don't wait for any of the events. They
                 # should all be canceled and fired immediately below,
                 # but don't stick around if not.
-                deadline = 0
+                timeout = 0
         try:
             yield
         except self._exit_early_exc as e:
@@ -581,7 +581,7 @@ class ComputeVirtAPI(virtapi.VirtAPI):
         sw.start()
         try:
             self._wait_for_instance_events(
-                    instance, events, error_callback, timeout=deadline)
+                    instance, events, error_callback, timeout=timeout)
         except exception.InstanceEventTimeout:
             LOG.warning(
                 'Timeout waiting for %(events)s for instance with '
@@ -3023,7 +3023,7 @@ class ComputeManager(manager.Manager):
 
         timeout = CONF.arq_binding_timeout
         with self.virtapi.wait_for_instance_event(
-                instance, events, deadline=timeout):
+                instance, events, timeout=timeout):
             resolved_arqs = cyclient.get_arqs_for_instance(
                     instance.uuid, only_resolved=True)
             # Events for these resolved ARQs may have already arrived.
@@ -3757,14 +3757,14 @@ class ComputeManager(manager.Manager):
             raise exception.BuildAbortException(
                 instance_uuid=instance.uuid, reason=msg)
         image_size = int(math.ceil(float(image.get('size')) / units.Gi))
-        deadline = CONF.reimage_timeout_per_gb * image_size
+        timeout = CONF.reimage_timeout_per_gb * image_size
         error_cb = self._reimage_failed_callback
 
         # Call cinder to perform reimage operation and wait until an
         # external event is triggered.
         try:
             with self.virtapi.wait_for_instance_event(instance, events,
-                                                      deadline=deadline,
+                                                      timeout=timeout,
                                                       error_callback=error_cb):
                 self.volume_api.reimage_volume(
                     context, root_bdm.volume_id, image_id,
@@ -9591,7 +9591,7 @@ class ComputeManager(manager.Manager):
             else:
                 disk = None
 
-            deadline = CONF.vif_plugging_timeout
+            timeout = CONF.vif_plugging_timeout
             error_cb = self._neutron_failed_live_migration_callback
             # In order to avoid a race with the vif plugging that the virt
             # driver does on the destination host, we register our events
@@ -9599,7 +9599,7 @@ class ComputeManager(manager.Manager):
             # dest host reports back that we shouldn't wait, we can break
             # out of the context manager using _BreakWaitForInstanceEvent.
             with self.virtapi.wait_for_instance_event(
-                    instance, events, deadline=deadline,
+                    instance, events, timeout=timeout,
                     error_callback=error_cb):
                 with timeutils.StopWatch() as timer:
                     # TODO(mriedem): The "block_migration" parameter passed

nova/tests/unit/compute/test_compute_mgr.py

@@ -7682,7 +7682,7 @@ class ComputeManagerUnitTestCase(test.NoDBTestCase,
         bdms = [root_bdm]
         events = [('volume-reimaged', root_bdm.volume_id)]
         image_size_gb = 1
-        deadline = CONF.reimage_timeout_per_gb * image_size_gb
+        timeout = CONF.reimage_timeout_per_gb * image_size_gb
 
         with test.nested(
             mock.patch.object(objects.Instance, 'save',
@@ -7715,7 +7715,7 @@ class ComputeManagerUnitTestCase(test.NoDBTestCase,
             mock_get_root_bdm.assert_called_once_with(
                 self.context, instance, bdms)
             wait_inst_event.assert_called_once_with(
-                instance, events, deadline=deadline,
+                instance, events, timeout=timeout,
                 error_callback=self.compute._reimage_failed_callback)
 
     @mock.patch('nova.volume.cinder.API.attachment_delete')
@@ -8630,7 +8630,7 @@ class ComputeManagerBuildInstanceTestCase(test.NoDBTestCase):
             self.context, self.instance, arq_uuids)
 
         mock_wait_inst_ev.assert_called_once_with(
-            self.instance, arq_events, deadline=mock.ANY)
+            self.instance, arq_events, timeout=mock.ANY)
         mock_exit_wait_early.assert_called_once_with(arq_events)
 
         mock_get_arqs.assert_has_calls([
@@ -8660,7 +8660,7 @@ class ComputeManagerBuildInstanceTestCase(test.NoDBTestCase):
             self.context, self.instance, arq_uuids=None)
 
         mock_wait_inst_ev.assert_called_once_with(
-            self.instance, arq_events, deadline=mock.ANY)
+            self.instance, arq_events, timeout=mock.ANY)
         mock_exit_wait_early.assert_called_once_with(arq_events)
 
         mock_get_arqs.assert_has_calls([
@@ -8692,7 +8692,7 @@ class ComputeManagerBuildInstanceTestCase(test.NoDBTestCase):
             self.context, self.instance, arq_uuids)
 
         mock_wait_inst_ev.assert_called_once_with(
-            self.instance, arq_events, deadline=mock.ANY)
+            self.instance, arq_events, timeout=mock.ANY)
         mock_exit_wait_early.assert_not_called()
         self.assertEqual(sorted(ret_arqs), sorted(arq_list))
         mock_get_arqs.assert_has_calls([
@@ -8723,7 +8723,7 @@ class ComputeManagerBuildInstanceTestCase(test.NoDBTestCase):
             self.context, self.instance, arq_uuids)
 
         mock_wait_inst_ev.assert_called_once_with(
-            self.instance, arq_events, deadline=mock.ANY)
+            self.instance, arq_events, timeout=mock.ANY)
         mock_exit_wait_early.assert_not_called()
         mock_get_arqs.assert_not_called()
 
@@ -8752,7 +8752,7 @@ class ComputeManagerBuildInstanceTestCase(test.NoDBTestCase):
             self.context, self.instance, arq_uuids)
 
         mock_wait_inst_ev.assert_called_once_with(
-            self.instance, arq_events, deadline=mock.ANY)
+            self.instance, arq_events, timeout=mock.ANY)
         mock_exit_wait_early.assert_not_called()
         mock_get_arqs.assert_called_once_with(
             self.instance.uuid, only_resolved=True)
@@ -12048,7 +12048,7 @@ class ComputeManagerMigrationTestCase(test.NoDBTestCase,
                 migrate_data)
         self.assertEqual(2, len(wait_for_event.call_args[0][1]))
         self.assertEqual(CONF.vif_plugging_timeout,
-                         wait_for_event.call_args[1]['deadline'])
+                         wait_for_event.call_args[1]['timeout'])
         mock_pre_live_mig.assert_called_once_with(
             self.context, self.instance, None, None, 'dest-host',
             migrate_data)

nova/virt/fake.py

@@ -690,7 +690,7 @@ class FakeDriver(driver.ComputeDriver):
 
 class FakeVirtAPI(virtapi.VirtAPI):
     @contextlib.contextmanager
-    def wait_for_instance_event(self, instance, event_names, deadline=300,
+    def wait_for_instance_event(self, instance, event_names, timeout=300,
                                 error_callback=None):
         # NOTE(danms): Don't actually wait for any events, just
         # fall through

nova/virt/libvirt/driver.py

@@ -8351,7 +8351,7 @@ class LibvirtDriver(driver.ComputeDriver):
         pause = bool(events)
         try:
             with self.virtapi.wait_for_instance_event(
-                instance, events, deadline=timeout,
+                instance, events, timeout=timeout,
                 error_callback=self._neutron_failed_callback,
             ):
                 self.plug_vifs(instance, network_info)

nova/virt/virtapi.py

@@ -17,7 +17,7 @@ import contextlib
 
 class VirtAPI(object):
     @contextlib.contextmanager
-    def wait_for_instance_event(self, instance, event_names, deadline=300,
+    def wait_for_instance_event(self, instance, event_names, timeout=300,
                                 error_callback=None):
         raise NotImplementedError()
 

nova/virt/zvm/driver.py

@@ -286,7 +286,7 @@ class ZVMDriver(driver.ComputeDriver):
         try:
             event = self._get_neutron_event(network_info)
             with self.virtapi.wait_for_instance_event(
-                    instance, event, deadline=timeout,
+                    instance, event, timeout=timeout,
                     error_callback=self._neutron_failed_callback):
                 self._setup_network(vm_name, os_distro, network_info, instance)
         except exception.InstanceEventTimeout: