From 652809dfa665860c1ea4622c540a30fbe18dc9e7 Mon Sep 17 00:00:00 2001 From: John Snow Date: Tue, 6 Oct 2020 19:58:01 -0400 Subject: [PATCH] python/machine.py: Don't modify state in _base_args() Don't append to the _remove_files list during _base_args; instead do so during _launch. Rework _base_args as a @property to help facilitate this impression. This has the additional benefit of making the type of _console_address easier to analyze statically. Signed-off-by: John Snow Reviewed-by: Kevin Wolf Message-id: 20201006235817.3280413-5-jsnow@redhat.com Signed-off-by: John Snow --- python/qemu/machine.py | 17 ++++++++++------- python/qemu/qtest.py | 7 ++++--- 2 files changed, 14 insertions(+), 10 deletions(-) diff --git a/python/qemu/machine.py b/python/qemu/machine.py index 71fe58be05..812ca7d349 100644 --- a/python/qemu/machine.py +++ b/python/qemu/machine.py @@ -25,7 +25,7 @@ import signal import subprocess import tempfile from types import TracebackType -from typing import Optional, Type +from typing import List, Optional, Type from . import console_socket, qmp from .qmp import SocketAddrT @@ -137,7 +137,9 @@ class QEMUMachine: self._console_index = 0 self._console_set = False self._console_device_type = None - self._console_address = None + self._console_address = os.path.join( + self._sock_dir, f"{self._name}-console.sock" + ) self._console_socket = None self._remove_files = [] self._user_killed = False @@ -253,7 +255,8 @@ class QEMUMachine: with open(self._qemu_log_path, "r") as iolog: self._iolog = iolog.read() - def _base_args(self): + @property + def _base_args(self) -> List[str]: args = ['-display', 'none', '-vga', 'none'] if self._qmp_set: @@ -271,9 +274,6 @@ class QEMUMachine: for _ in range(self._console_index): args.extend(['-serial', 'null']) if self._console_set: - self._console_address = os.path.join(self._sock_dir, - self._name + "-console.sock") - self._remove_files.append(self._console_address) chardev = ('socket,id=console,path=%s,server,nowait' % self._console_address) args.extend(['-chardev', chardev]) @@ -289,6 +289,9 @@ class QEMUMachine: self._qemu_log_path = os.path.join(self._temp_dir, self._name + ".log") self._qemu_log_file = open(self._qemu_log_path, 'wb') + if self._console_set: + self._remove_files.append(self._console_address) + if self._qmp_set: if self._remove_monitor_sockfile: assert isinstance(self._monitor_address, str) @@ -374,7 +377,7 @@ class QEMUMachine: devnull = open(os.path.devnull, 'rb') self._pre_launch() self._qemu_full_args = (self._wrapper + [self._binary] + - self._base_args() + self._args) + self._base_args + self._args) LOG.debug('VM launch command: %r', ' '.join(self._qemu_full_args)) self._popen = subprocess.Popen(self._qemu_full_args, stdin=devnull, diff --git a/python/qemu/qtest.py b/python/qemu/qtest.py index 7700c0b09b..7fde2565a0 100644 --- a/python/qemu/qtest.py +++ b/python/qemu/qtest.py @@ -19,7 +19,7 @@ subclass of QEMUMachine, respectively. import os import socket -from typing import Optional, TextIO +from typing import List, Optional, TextIO from .machine import QEMUMachine @@ -111,8 +111,9 @@ class QEMUQtestMachine(QEMUMachine): self._qtest = None self._qtest_path = os.path.join(sock_dir, name + "-qtest.sock") - def _base_args(self): - args = super()._base_args() + @property + def _base_args(self) -> List[str]: + args = super()._base_args args.extend(['-qtest', 'unix:path=' + self._qtest_path, '-accel', 'qtest']) return args