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From: Amador Pahim <apahim@redhat.com>
To: qemu-devel@nongnu.org
Cc: stefanha@gmail.com, famz@redhat.com, berrange@redhat.com,
	ehabkost@redhat.com, mreitz@redhat.com, kwolf@redhat.com,
	armbru@redhat.com, crosa@redhat.com, ldoktor@redhat.com,
	Amador Pahim <apahim@redhat.com>
Subject: [Qemu-devel] [PATCH v8 12/13] qemu.py: launch vm only if it's not running
Date: Fri,  1 Sep 2017 13:28:28 +0200	[thread overview]
Message-ID: <20170901112829.2571-13-apahim@redhat.com> (raw)
In-Reply-To: <20170901112829.2571-1-apahim@redhat.com>

A new call to launch() with a running VM will fall in exception and
consequently call shutdown().

This patch makes launch() to raise an exception when it's called with VM
already running.

Signed-off-by: Amador Pahim <apahim@redhat.com>
---
 scripts/qemu.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/qemu.py b/scripts/qemu.py
index 03e4cc34b7..363f649a7e 100644
--- a/scripts/qemu.py
+++ b/scripts/qemu.py
@@ -165,6 +165,9 @@ class QEMUMachine(object):
         Try to launch the VM and make sure we cleanup and expose the
         command line/output in case of exception.
         '''
+        if self.is_running():
+            raise QEMUMachineError('VM already running')
+
         self._iolog = None
         self._qemu_full_args = None
         try:
-- 
2.13.5

  parent reply	other threads:[~2017-09-01 11:32 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-01 11:28 [Qemu-devel] [PATCH v8 00/13] scripts/qemu.py fixes and cleanups Amador Pahim
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 01/13] qemu.py: fix is_running() return before first launch() Amador Pahim
2017-09-05  2:57   ` Fam Zheng
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 02/13] qemu.py: avoid writing to stdout/stderr Amador Pahim
2017-09-05  2:59   ` Fam Zheng
2017-09-21 10:35   ` Kevin Wolf
2017-09-21 12:17     ` Eduardo Habkost
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 03/13] qemu.py: use os.path.null instead of /dev/null Amador Pahim
2017-09-01 11:39   ` Philippe Mathieu-Daudé
2017-09-05  2:59   ` Fam Zheng
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 04/13] qemu.py: improve message on negative exit code Amador Pahim
2017-09-05  3:02   ` Fam Zheng
2017-09-18  5:18     ` Kevin Wolf
2017-09-18  5:39       ` Fam Zheng
2017-09-18  6:44         ` Kevin Wolf
2017-09-18  7:03           ` Fam Zheng
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 05/13] qemu.py: include debug information on launch error Amador Pahim
2017-09-05  3:05   ` Fam Zheng
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 06/13] qemu.py: make sure we only remove files we create Amador Pahim
2017-09-05  3:18   ` Fam Zheng
2017-09-14 19:38     ` Amador Pahim
2017-09-14 19:46       ` Eduardo Habkost
2017-09-14 20:05         ` Amador Pahim
2017-09-14 20:18           ` Eduardo Habkost
2017-09-14 20:21             ` Amador Pahim
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 07/13] qemu.py: close _qemu_log_path on cleanup Amador Pahim
2017-09-05  3:05   ` Fam Zheng
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 08/13] qemu.py: refactor launch() Amador Pahim
2017-09-05  3:06   ` Fam Zheng
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 09/13] qemu.py: always cleanup on shutdown() Amador Pahim
2017-09-05  3:07   ` Fam Zheng
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 10/13] qemu.py: use poll() instead of 'returncode' Amador Pahim
2017-09-05  3:07   ` Fam Zheng
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 11/13] qemu.py: cleanup redundant calls in launch() Amador Pahim
2017-09-05  3:20   ` Fam Zheng
2017-09-01 11:28 ` Amador Pahim [this message]
2017-09-05  3:19   ` [Qemu-devel] [PATCH v8 12/13] qemu.py: launch vm only if it's not running Fam Zheng
2017-09-01 11:28 ` [Qemu-devel] [PATCH v8 13/13] qemu.py: don't launch again before shutdown() Amador Pahim
2017-09-05  3:22   ` Fam Zheng
2017-09-05 10:02 ` [Qemu-devel] [PATCH v8 00/13] scripts/qemu.py fixes and cleanups Stefan Hajnoczi
2017-09-14 19:31 ` Eduardo Habkost

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