artiq/artiq/coredevice/comm_tcp.py

41 lines
1013 B
Python

import logging
import socket
from artiq.coredevice.comm_generic import CommGeneric
from artiq.language.db import *
logger = logging.getLogger(__name__)
class Comm(CommGeneric, AutoDB):
class DBKeys:
host = Argument()
port = Argument(1381)
def open(self):
if hasattr(self, "socket"):
return
self.socket = socket.create_connection((self.host, self.port))
logger.debug("connected to host %s on port %d", self.host, self.port)
self.write(b"ARTIQ coredev\n")
def close(self):
if not hasattr(self, "socket"):
return
self.socket.close()
del self.socket
logger.debug("disconnected")
def read(self, length):
r = bytes()
while len(r) < length:
rn = self.socket.recv(min(8192, length - len(r)))
if not rn:
raise IOError("Connection closed")
r += rn
return r
def write(self, data):
self.socket.sendall(data)