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#!/usr/bin/env python
# Copyright (c) 2001-2009 XORP, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, Version 2, June
# 1991 as published by the Free Software Foundation. Redistribution
# and/or modification of this program under the terms of any other
# version of the GNU General Public License is not permitted.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For more details,
# see the GNU General Public License, Version 2, a copy of which can be
# found in the XORP LICENSE.gpl file.
#
# XORP Inc, 2953 Bunker Hill Lane, Suite 204, Santa Clara, CA 95054, USA;
# http://xorp.net
# $XORP: xorp/tests/test_process.py,v 1.6 2008/10/02 21:58:30 bms Exp $
import thread,threading,time,sys,os,popen2
class Process(threading.Thread):
"""
Start a process in a separate thread
"""
def __init__(self, command=""):
threading.Thread.__init__(self)
self._status = "INIT"
self._command = command
self.lock = thread.allocate_lock()
def run(self):
self.lock.acquire()
print "command:", self._command
self.process = popen2.Popen4("exec " + self._command)
print "PID:", self.process.pid
self._status = "RUNNING"
while 1:
o = self.process.fromchild.read(1)
if not o:
break
os.write(1, o)
self._status = "TERMINATED"
print "exiting:", self._command
self.lock.release()
def status(self):
return self._status
def command(self):
return self._command
def terminate(self):
"""
Terminate this process
"""
print "sending kill to", self._command, self.process.pid
if self._status == "RUNNING":
os.kill(self.process.pid, 9)
self.lock.acquire()
self.lock.release()
else:
print self._command, "not running"
# Local Variables:
# mode: python
# py-indent-offset: 4
# End:
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