# workserver.py - simple HTTP server with a do_work / stop_work API
# GET /do_work activates a worker thread which uses CPU
# GET /stop_work signals worker thread to stop
import math
import socket
import threading
import time
from bottle import route, run
hostname = socket.gethostname()
hostport = 9000
keepworking = False # boolean to switch worker thread on or off
# thread which maximizes CPU usage while the keepWorking global is True
def workerthread():
# outer loop to run while waiting
while (True):
# main loop to thrash the CPI
while (keepworking == True):
for x in range(1, 69):
math.factorial(x)
time.sleep(3)
# start the worker thread
worker_thread = threading.Thread(target=workerthread, args=())
worker_thread.start()
def writebody():
body = 'Work interface - build'
body += 'Worker interface on ' + hostname + '
'
if keepworking == False:
body += '
Worker thread is not running. Start work
'
else:
body += '
Worker thread is running. Stop work
'
body += '
Usage:
/do_work = start worker thread
/stop_work = stop worker thread
'
body += '
'
return body
@route('/')
def root():
return writebody()
@route('/do_work')
def do_work():
global keepworking
# start worker thread
keepworking = True
return writebody()
@route('/stop_work')
def stop_work():
global keepworking
# stop worker thread
keepworking = False
return writebody()
run(host=hostname, port=hostport)