This is just an refactor to separate the exception handler from the
actual launch procedure, improving the readability and making future
maintenances in this piece of code easier.
Signed-off-by: Amador Pahim <apahim@redhat.com>
---
scripts/qemu.py | 29 ++++++++++++++++++-----------
1 file changed, 18 insertions(+), 11 deletions(-)
diff --git a/scripts/qemu.py b/scripts/qemu.py
index 1b77fec48b..06f07bfaa2 100644
--- a/scripts/qemu.py
+++ b/scripts/qemu.py
@@ -160,20 +160,14 @@ class QEMUMachine(object):
self._remove_if_exists(self._created_files.pop())
def launch(self):
- '''Launch the VM and establish a QMP connection'''
+ '''
+ Try to launch the VM and make sure we cleanup and expose the
+ command line/output in case of exception.
+ '''
self._iolog = None
self._qemu_full_args = None
- devnull = open(os.path.devnull, 'rb')
try:
- self._pre_launch()
- self._qemu_full_args = (self._wrapper + [self._binary] +
- self._base_args() + self._args)
- self._popen = subprocess.Popen(self._qemu_full_args,
- stdin=devnull,
- stdout=self._qemu_log_fd,
- stderr=subprocess.STDOUT,
- shell=False)
- self._post_launch()
+ self._launch()
except:
if self.is_running():
self._popen.kill()
@@ -188,6 +182,19 @@ class QEMUMachine(object):
LOG.debug('Output: %r', self._iolog)
raise
+ def _launch(self):
+ '''Launch the VM and establish a QMP connection'''
+ devnull = open(os.path.devnull, 'rb')
+ self._pre_launch()
+ self._qemu_full_args = (self._wrapper + [self._binary] +
+ self._base_args() + self._args)
+ self._popen = subprocess.Popen(self._qemu_full_args,
+ stdin=devnull,
+ stdout=self._qemu_log_fd,
+ stderr=subprocess.STDOUT,
+ shell=False)
+ self._post_launch()
+
def shutdown(self):
'''Terminate the VM and clean up'''
if self.is_running():
--
2.13.5