#!/usr/bin/env python3

import subprocess

import time

import os

class Process:

def __init__(self, command, logfile=None):

self.command = command

if logfile is not None:

self.logfile = open(logfile, "wb+")

try:

self.proc = subprocess.Popen(self.command.split(), stderr=subprocess.STDOUT, stdout=self.logfile)

except Exception:

print("run command failed: {}".format(self.command))

raise

def is_running(self):

try:

self.proc.wait(0)

except Exception:

pass

return self.proc.returncode is None

def kill(self):

if self.is_running():

self.proc.kill()

if self.logfile is not None:

self.logfile.close()

def wait(self):

self.proc.wait()

def get_pid(self):

return self.proc.pid

def kill_all(children=[]):

for p in children:

p.kill()

def check_alive(children=[], seconds=0):

if seconds != 0:

time.sleep(seconds)

for p in children:

if not p.is_running():

message = "process lost - {}".format(p.command)

raise Exception(message)

def do_command(command):

return subprocess.call(command.split())

if __name__ != "__main__":

os.environ["PATH"] += os.pathsep + os.getcwd()

os.environ["PATH"] += os.pathsep + os.path.abspath(os.path.join(os.getcwd(), "../bin"))