gecko/testing/performance/talos/ffprocess.py

113 lines
3.8 KiB
Python
Executable File

# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is standalone Firefox Windows performance test.
#
# The Initial Developer of the Original Code is Google Inc.
# Portions created by the Initial Developer are Copyright (C) 2006
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Annie Sullivan <annie.sullivan@gmail.com> (original author)
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
"""A set of functions for process management on Windows.
"""
__author__ = 'annie.sullivan@gmail.com (Annie Sullivan)'
import platform
import os
import re
import time
import subprocess
if platform.system() == "Linux":
from ffprocess_linux import *
elif platform.system() in ("Windows", "Microsoft"):
from ffprocess_win32 import *
elif platform.system() == "Darwin":
from ffprocess_mac import *
def Sleep():
"""Runs sync and sleeps for a few seconds between Firefox runs.
Otherwise "Firefox is already running.." errors occur
"""
time.sleep(5)
def RunProcessAndWaitForOutput(command, process_name, output_regex, timeout):
"""Runs the given process and waits for the output that matches the given
regular expression. Stops if the process exits early or times out.
Args:
command: String containing command to run
process_name: Name of the process to run, in case it has to be killed
output_regex: Regular expression to check against each output line.
If the output matches, the process is terminated and
the function returns.
timeout: Time to wait before terminating the process and returning
Returns:
A tuple (match, timedout) where match is the match of the regular
expression, and timed out is true if the process timed out and
false otherwise.
"""
# Start the process
process = subprocess.Popen(command, stdout=subprocess.PIPE, universal_newlines=True, shell=True, env=os.environ)
handle = process.stdout
# Wait for it to print output, terminate, or time out.
time_elapsed = 0
output = ''
interval = 2 # Wait 2 seconds in between checks
while time_elapsed < timeout:
time.sleep(interval)
time_elapsed += interval
(bytes, current_output) = NonBlockingReadProcessOutput(handle)
output += current_output
result = output_regex.search(output)
if result:
try:
return_val = result.group(1)
TerminateAllProcesses(process_name)
return (return_val, False)
except IndexError:
# Didn't really match
pass
# Timed out.
TerminateAllProcesses(process_name)
return (None, True)