def __init__(self,
bind_address="INADDR_ANY",
bind_port=5354,
multicast_address="224.1.2.3",
multicast_port=5355):
if bind_address == "localhost":
self.bind_address = net.get_local_ip_address()
else:
self.bind_address = bind_address
self.bind_port = bind_port
self.multicast_address = multicast_address
self.multicast_port = multicast_port
self.multicast_group = (multicast_address, multicast_port)
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,
socket.IPPROTO_UDP)
try:
self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
except AttributeError:
pass
if hasattr(self.sock, 'SO_REUSEPORT'):
self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, True)
ttl = struct.pack('b', Multicast.ttl)
self.sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, ttl)
def send(self, message):
localhost = network.get_local_ip_address()
self.logger.debug('UDP send for host ' + localhost + ", message: " +
message)
self.logger.debug("To: " + self.dest_address + " / " +
str(self.dest_port))
self.sock.sendto(message, (self.dest_address, self.dest_port))
def init_wrapper(transport_impl, bind_address, bind_port, receive_address, receive_port):
exc_info = None
logger = logging.getLogger('Transport: Initialize Client')
if bind_address == "localhost":
bind_address = net.get_local_ip_address()
else:
bind_address = bind_address
if receive_address == "localhost":
receive_address = net.get_local_ip_address()
else:
receive_address = receive_address
logger.debug("Binding to address " + bind_address + " and port " + str(bind_port))
try:
init(transport_impl, bind_address, bind_port, receive_address, receive_port)
except Exception as err:
import sys
exc_info = sys.exc_info()
print "ERROR OF TYPE: " + str(type(err)) # the exception instance
print "Details: " + str(err)
send_address = ", RECEIVE/DESTINATION ADDRESS AND PORT IS NOT DEFINED FOR THIS 'OUTPUT TYPE' SOCKET"
if receive_address is not None:
send_address = ", Receiver Address=" + receive_address + ", Receiver Port=" + str(receive_port)
print "Socket Details: Bind Address=" + bind_address + ", Bind Port=" + str(bind_port) + send_address
finally:
# Display the *original* exception
if exc_info is not None:
import traceback
traceback.print_exception(*exc_info)
del exc_info
exit(1)
transport_impl.bind_address = bind_address
transport_impl.bind_port = bind_port
def __init__(self,
target_method,
bind_address="INADDR_ANY",
bind_port=5354):
self.is_running = False
self.target_method = target_method
self.logger = logging.getLogger('UDPServer')
localhost = network.get_local_ip_address()
self.logger.debug('UDP __init__ for host ' + localhost +
' using bind address: ' + bind_address + "/" +
str(bind_port))
SocketServer.UDPServer.allow_reuse_address = True
SocketServer.UDPServer.__init__(self,
(str(bind_address), int(bind_port)),
RequestHandler)
return
def init_wrapper(transport_impl, target_method, bind_address, bind_port,
multicast_address=None, multicast_port=None):
logger = logging.getLogger('Transport: Initialize Server')
exc_info = None
if bind_address == "localhost":
bind_address = net.get_local_ip_address()
else:
bind_address = bind_address
logger.debug("Init Server: Binding to address " + bind_address + " and port " + str(bind_port))
try:
if multicast_address is None:
init(transport_impl, target_method, bind_address, bind_port)
else:
init(transport_impl, target_method, bind_address, bind_port, multicast_address, multicast_port)
except socket.error as socket_error:
import sys
exc_info = sys.exc_info()
print "ERROR OF TYPE: " + str(type(socket_error)) # the exception instance
print "Details: " + str(socket_error)
mcast_text = ""
if multicast_address is not None:
mcast_text = ", Multicast Address=" + multicast_address + ", Multicast Port=" + str(multicast_port)
print "Socket Details: Bind Address=" + bind_address + ", Bind Port=" + str(bind_port) + mcast_text
finally:
# Display the *original* exception
if exc_info is not None:
import traceback
traceback.print_exception(*exc_info)
del exc_info
exit(1)
transport_impl.bind_address = bind_address
transport_impl.bind_port = bind_port
