mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 16:26:10 +03:00
59 lines
1.5 KiB
Python
59 lines
1.5 KiB
Python
|
# Copyright (c) 2013 The Chromium Authors. All rights reserved.
|
||
|
|
# Use of this source code is governed by a BSD-style license that can be
|
||
|
|
# found in the LICENSE file.
|
||
|
|
|
||
|
|
# pylint: disable=W0702
|
||
|
|
|
||
|
|
import os
|
||
|
|
import signal
|
||
|
|
import subprocess
|
||
|
|
import sys
|
||
|
|
import time
|
||
|
|
|
||
|
|
|
||
|
|
def _IsLinux():
|
||
|
|
"""Return True if on Linux; else False."""
|
||
|
|
return sys.platform.startswith('linux')
|
||
|
|
|
||
|
|
|
||
|
|
class Xvfb(object):
|
||
|
|
"""Class to start and stop Xvfb if relevant. Nop if not Linux."""
|
||
|
|
|
||
|
|
def __init__(self):
|
||
|
|
self._pid = 0
|
||
|
|
|
||
|
|
def Start(self):
|
||
|
|
"""Start Xvfb and set an appropriate DISPLAY environment. Linux only.
|
||
|
|
|
||
|
|
Copied from tools/code_coverage/coverage_posix.py
|
||
|
|
"""
|
||
|
|
if not _IsLinux():
|
||
|
|
return
|
||
|
|
proc = subprocess.Popen(['Xvfb', ':9', '-screen', '0', '1024x768x24',
|
||
|
|
'-ac'],
|
||
|
|
stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
|
||
|
|
self._pid = proc.pid
|
||
|
|
if not self._pid:
|
||
|
|
raise Exception('Could not start Xvfb')
|
||
|
|
os.environ['DISPLAY'] = ':9'
|
||
|
|
|
||
|
|
# Now confirm, giving a chance for it to start if needed.
|
||
|
|
for _ in range(10):
|
||
|
|
proc = subprocess.Popen('xdpyinfo >/dev/null', shell=True)
|
||
|
|
_, retcode = os.waitpid(proc.pid, 0)
|
||
|
|
if retcode == 0:
|
||
|
|
break
|
||
|
|
time.sleep(0.25)
|
||
|
|
if retcode != 0:
|
||
|
|
raise Exception('Could not confirm Xvfb happiness')
|
||
|
|
|
||
|
|
def Stop(self):
|
||
|
|
"""Stop Xvfb if needed. Linux only."""
|
||
|
|
if self._pid:
|
||
|
|
try:
|
||
|
|
os.kill(self._pid, signal.SIGKILL)
|
||
|
|
except:
|
||
|
|
pass
|
||
|
|
del os.environ['DISPLAY']
|
||
|
|
self._pid = 0
|