[PULL 02/19] python/machine.py: consolidate _post_shutdown()

[Philippe Mathieu-Daudé]

From: John Snow <jsnow@redhat.com>

Move more cleanup actions into _post_shutdown. As a change, if QEMU
should so happen to be terminated during a call to wait(), that event
will now be logged.

This is not likely to occur during normative use.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200710050649.32434-2-jsnow@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 python/qemu/machine.py | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/python/qemu/machine.py b/python/qemu/machine.py
index c25f0b42cf..ca1f2114e6 100644
--- a/python/qemu/machine.py
+++ b/python/qemu/machine.py
@@ -294,6 +294,8 @@ def _post_launch(self):
             self._qmp.accept()
 
     def _post_shutdown(self):
+        self._load_io_log()
+
         if self._qemu_log_file is not None:
             self._qemu_log_file.close()
             self._qemu_log_file = None
@@ -307,6 +309,17 @@ def _post_shutdown(self):
         while len(self._remove_files) > 0:
             self._remove_if_exists(self._remove_files.pop())
 
+        exitcode = self.exitcode()
+        if exitcode is not None and exitcode < 0:
+            msg = 'qemu received signal %i; command: "%s"'
+            if self._qemu_full_args:
+                command = ' '.join(self._qemu_full_args)
+            else:
+                command = ''
+            LOG.warning(msg, -int(exitcode), command)
+
+        self._launched = False
+
     def launch(self):
         """
         Launch the VM and make sure we cleanup and expose the
@@ -355,7 +368,6 @@ def wait(self):
         self._popen.wait()
         if self._qmp:
             self._qmp.close()
-        self._load_io_log()
         self._post_shutdown()
 
     def shutdown(self, has_quit=False, hard=False):
@@ -382,21 +394,8 @@ def shutdown(self, has_quit=False, hard=False):
                     self._popen.kill()
             self._popen.wait()
 
-        self._load_io_log()
         self._post_shutdown()
 
-        exitcode = self.exitcode()
-        if exitcode is not None and exitcode < 0 and \
-                not (exitcode == -9 and hard):
-            msg = 'qemu received signal %i: %s'
-            if self._qemu_full_args:
-                command = ' '.join(self._qemu_full_args)
-            else:
-                command = ''
-            LOG.warning(msg, -int(exitcode), command)
-
-        self._launched = False
-
     def kill(self):
         self.shutdown(hard=True)
 
-- 
2.21.3