Current implementation is broken. It does not really test if the child
process is running.
The Popen.returncode will only be set after by a poll(), wait() or
communicate(). If the Popen fails to launch a VM, the Popen.returncode
will not turn to None by itself.
Instead of using Popen.returncode, let's use Popen.poll(), which
actually checks if child process has terminated.
Signed-off-by: Amador Pahim <apa...@redhat.com>
---
scripts/qemu.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/qemu.py b/scripts/qemu.py
index 880e3e8219..f0fade32bd 100644
--- a/scripts/qemu.py
+++ b/scripts/qemu.py
@@ -86,7 +86,7 @@ class QEMUMachine(object):
raise
def is_running(self):
- return self._popen and (self._popen.returncode is None)
+ return self._popen and (self._popen.poll() is None)
def exitcode(self):
if self._popen is None:
--
2.13.3
