Source code for spinn_utilities.ping
# Copyright (c) 2018 The University of Manchester
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# 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. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import platform
import subprocess
import time
[docs]class Ping(object):
unreachable = set()
[docs] @staticmethod
def ping(ipaddr):
if platform.platform().lower().startswith("windows"):
cmd = "ping -n 1 -w 1 "
else:
cmd = "ping -c 1 -W 1 "
process = subprocess.Popen(
cmd + ipaddr, shell=True, stdout=subprocess.PIPE)
time.sleep(1.2)
process.stdout.close()
process.wait()
return process.returncode
[docs] @staticmethod
def host_is_reachable(ipaddr):
if ipaddr in Ping.unreachable:
return False
tries = 0
while (True):
if Ping.ping(ipaddr) == 0:
return True
tries += 1
if tries > 10:
Ping.unreachable.add(ipaddr)
return False