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| #!/usr/bin/env python
# -*- coding: utf-8 -*-
from flask import Flask, render_template, request
from threading import Thread, Event
from multiprocessing import Process, Value
from threading import Thread
import requests
import json
import urllib
import time
import threading
app = Flask(__name__)
class LoopThread(Thread):
def __init__(self, stop_event, interrupt_event):
self.stop_event = stop_event
self.interrupt_event = interrupt_event
Thread.__init__(self)
def run(self):
while not self.stop_event.is_set():
self.loop_process()
if self.interrupt_event.is_set():
self.interrupted_process()
self.interrupt_event.clear()
def loop_process(self):
print("Start my pump!")
time.sleep(2)
def interrupted_process(self):
print("Pump stopped!")
@app.route('/')
def index():
link = requests.get('http://192.168.1.129/cgi-bin/toto.py')
return render_template('main.html', index=json.loads(link.text))
def shutdown_server():
func = request.environ.get('werkzeug.server.shutdown')
if func is None:
raise RuntimeError('Not running with the Werkzeug Server')
func()
@app.route("/kill")
def shutdown():
STOP_EVENT.set()
thread.join()
shutdown_server()
return "OK", 200
@app.route('/start', methods=['GET'])
def start():
global thread
global STOP_EVENT
global INTERRUPT_EVENT
STOP_EVENT = Event()
INTERRUPT_EVENT = Event()
thread = LoopThread(STOP_EVENT, INTERRUPT_EVENT)
threads = []
if not thread.is_alive():
print 'Thread starting...', thread.is_alive()
thread.start()
print 'Pump starting...', thread.is_alive()
return render_template('main.html')
@app.route('/stop', methods=['GET'])
def stop():
print thread.is_alive()
interrupt()
print 'Pump stopping...'
thread.join()
print thread.is_alive()
return render_template('main.html')
@app.route("/interrupt")
def interrupt():
STOP_EVENT.set()
INTERRUPT_EVENT.set()
return "OK", 200
if __name__ == '__main__':
app.run(host='0.0.0.0', port=8000, debug='true') |
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