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Re: [Qemu-devel] [PATCH v8 11/13] qemu.py: cleanup redundant calls in la
From: |
Fam Zheng |
Subject: |
Re: [Qemu-devel] [PATCH v8 11/13] qemu.py: cleanup redundant calls in launch() |
Date: |
Tue, 5 Sep 2017 11:20:08 +0800 |
User-agent: |
Mutt/1.8.3 (2017-05-23) |
On Fri, 09/01 13:28, Amador Pahim wrote:
> Now that shutdown() is guaranteed to always execute self._load_io_log()
> and self._post_shutdown(), their calls in 'except' became redundant and
> we can safely replace it by a call to shutdown().
>
> Due to this change, shutdown() can be now called even before the
> creation of the _qemu_log_path. So, to avoid errors with _load_io_log(),
> this patch makes sure we will only read the _qemu_log_path if it was
> previously created by us.
>
> Signed-off-by: Amador Pahim <address@hidden>
> ---
> scripts/qemu.py | 11 ++++-------
> 1 file changed, 4 insertions(+), 7 deletions(-)
>
> diff --git a/scripts/qemu.py b/scripts/qemu.py
> index 87a2212b77..03e4cc34b7 100644
> --- a/scripts/qemu.py
> +++ b/scripts/qemu.py
> @@ -115,8 +115,9 @@ class QEMUMachine(object):
> return self._popen.pid
>
> def _load_io_log(self):
> - with open(self._qemu_log_path, "r") as fh:
> - self._iolog = fh.read()
> + if self._qemu_log_path in self._created_files:
> + with open(self._qemu_log_path, "r") as fh:
> + self._iolog = fh.read()
>
> def _base_args(self):
> if isinstance(self._monitor_address, tuple):
> @@ -169,11 +170,7 @@ class QEMUMachine(object):
> try:
> self._launch()
> except:
> - if self.is_running():
> - self._popen.kill()
> - self._popen.wait()
> - self._load_io_log()
> - self._post_shutdown()
> + self.shutdown()
>
> LOG.debug('Error launching VM')
> if self._qemu_full_args:
> --
> 2.13.5
>
>
Reviewed-by: Fam Zheng <address@hidden>
- Re: [Qemu-devel] [PATCH v8 05/13] qemu.py: include debug information on launch error, (continued)
- [Qemu-devel] [PATCH v8 07/13] qemu.py: close _qemu_log_path on cleanup, Amador Pahim, 2017/09/01
- [Qemu-devel] [PATCH v8 09/13] qemu.py: always cleanup on shutdown(), Amador Pahim, 2017/09/01
- [Qemu-devel] [PATCH v8 08/13] qemu.py: refactor launch(), Amador Pahim, 2017/09/01
- [Qemu-devel] [PATCH v8 10/13] qemu.py: use poll() instead of 'returncode', Amador Pahim, 2017/09/01
- [Qemu-devel] [PATCH v8 11/13] qemu.py: cleanup redundant calls in launch(), Amador Pahim, 2017/09/01
- Re: [Qemu-devel] [PATCH v8 11/13] qemu.py: cleanup redundant calls in launch(),
Fam Zheng <=
- [Qemu-devel] [PATCH v8 12/13] qemu.py: launch vm only if it's not running, Amador Pahim, 2017/09/01
- [Qemu-devel] [PATCH v8 13/13] qemu.py: don't launch again before shutdown(), Amador Pahim, 2017/09/01
- Re: [Qemu-devel] [PATCH v8 00/13] scripts/qemu.py fixes and cleanups, Stefan Hajnoczi, 2017/09/05
- Re: [Qemu-devel] [PATCH v8 00/13] scripts/qemu.py fixes and cleanups, Eduardo Habkost, 2017/09/14