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tcp_emul.py
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tcp_emul.py
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import time
import sys
from threading import Thread
import socket
class worker(Thread):
def __init__(self, temperature_controller=None, port=1394):
Thread.__init__(self)
self.port = port
self.tmpr = temperature_controller
self.daemon = True
def run(self):
# print('tcp running')
while True:
try:
# print('connecting')
connection = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# print('waiting for connection')
# connection.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
connection.bind(('0.0.0.0', self.port))
connection.listen(32)
# print('bound to', self.port)
while True:
current_connection, address = connection.accept()
# print('accepted from', address)
while True:
data = current_connection.recv(256).decode('ascii').lower()
print(time.time(), 'received', data)
for cmd in data.split(';'):
# print('command:', cmd)
reply = '-1'
cmd = cmd.strip(' :')
if self.tmpr and cmd.startswith('krdg? a'):
reply = repr(self.tmpr.temperatures[0])
elif self.tmpr and cmd.startswith('krdg? b'):
reply = repr(self.tmpr.temperatures[1])
print(time.time(), 'sending', reply)
current_connection.send((reply + '\n').encode('ascii'))
print(time.time(), 'done')
except (KeyboardInterrupt, SystemExit):
connection.shutdown(1)
connection.close()
print('caught ctrl+c')
self.join()
sys.exit()
except:
# connection.shutdown(1)
connection.close()
pass
# except:
# pass
finally:
time.sleep(1)