class TCPServer:
def __init__(
self,
host='127.0.0.1',
port=4000,
maxSize=3,
expirationTimeInSeconds=300):
self.host = host
self.port = int(port)
self.maxSize = int(maxSize)
self.expirationTimeInSeconds = int(expirationTimeInSeconds)
self.database = LRUCache(
maxSize=self.maxSize,
expirationTimeInSeconds=self.expirationTimeInSeconds
)
print("Starting database with {} memory capacity and expiration time of {} seconds".format(self.maxSize, self.expirationTimeInSeconds))
self.origin = (self.host, self.port)
print('Starting server at address {} and port {}'.format(self.host,self.port))
self.tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.tcp.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.tcp.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
self.tcp.bind(self.origin)
self.tcp.listen(10)
self.listen()
def listen(self):
while True:
try:
self.conn, self.client = self.tcp.accept()
print ('IP address {} connected!'.format(self.client[0]))
while True:
msg = self.conn.recv(1024)
if not msg:
break
self.save(msg)
print('Connected closed for {}'.format(self.client[0]))
except:
print('Socket error')
def closeConnection(self):
self.conn.close()
def save(self, data):
try:
data = pickle.loads(data)
key = data['key']
value = data['value']
self.database.set(key, value)
print('****************************')
self.show()
print('****************************')
except Err:
print('Could not save data into cache')
def show(self):
self.database.show()
