def stringReceived(self, string):
# get the first byte, the packet type
self.logger.debug("stringReceived: bytes: %d", len(string))
(packetType,) = struct.unpack_from("!H", string, 0)
self.logger.debug("packet type: %d, name: %s", packetType, TcpPacket.name(packetType))
# find a handler to handle the real packet
if not self.handlers.has_key(packetType):
self.logger.error("invalid packet type: %d", packetType)
self.transport.loseConnection()
return
# call the handler
try:
# call the handler, and strip out the first 2 bytes: the packet type
self.handlers[packetType](string[2:])
# update statistics
self.statistics.tcpBytesReceived += len(string)
self.statistics.tcpPacketsReceived += 1
self.statistics.tcpLastR = datetime.datetime.now()
except:
self.logger.error("stringReceived: failed to execute handler for packet %d", packetType)
self.transport.loseConnection()
raise
def send(self, packetType, data=None):
packetLength = 0
if data != None:
dataLength = len(data)
packetLength = struct.calcsize("!H") + dataLength
self.logger.debug("sending packet of type: %s, data length: %d", TcpPacket.name(packetType), dataLength)
self.transport.write(struct.pack("!HH", packetLength, packetType))
self.transport.write(data)
else:
self.logger.debug("sending empty packet of type: %s", TcpPacket.name(packetType))
packetLength = struct.calcsize("!H")
self.transport.write(struct.pack("!HH", packetLength, packetType))
self.statistics.lock()
self.statistics.tcpPacketsSent += 1
self.statistics.tcpBytesSent += 2 + packetLength
self.statistics.tcpLastSent = datetime.datetime.now()
self.statistics.release()
def broadcast(self, packetType, data):
"""Send the packet to all clients."""
dataLength = len(data)
self.logger.debug(
"broadcasting packet of type: %s, data length: %d to %d players",
TcpPacket.name(packetType),
dataLength,
len(self.clients),
)
for clientId, client in self.clients.iteritems():
client.send(packetType, data)