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#
# Copyright © 2012 Intel Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
#
import os
import sys
import time
from subprocess import Popen, PIPE, TimeoutExpired
from threading import Thread
__all__ = ['runProgram']
def runProgram(cmd, timeout, workingDir = None, env = None):
'''Run a program with a timeout in case it never terminates.
cmd -- List of command and arguments. See subprocess.Popen.
timeout -- Fractional number of seconds to wait before killing the program.
env -- A dictionary containing additional environment variables to set.
Returns a 4-tuple: (stdout, stderr, return code, <finished before timeout>)
'''
if env:
fullEnv = os.environ.copy()
fullEnv.update(env)
else:
fullEnv = os.environ
out = ''
err = ''
try:
proc = Popen(cmd, stdout=PIPE, stderr=PIPE, cwd=workingDir, env=fullEnv,
start_new_session=True, universal_newlines=True)
out, err = proc.communicate(timeout=timeout)
return (out, err, proc.returncode, True)
except TimeoutExpired:
return (out, err, proc.returncode, False)
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