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- #Simple packet type for the simple protocol
- import struct
- class Packet(object):
- def __init__(self, cmd, *data):
- self.cmd = cmd
- self.data = data
- if len(data) >= 8:
- raise ValueError('Too many data')
- self.data = list(self.data) + [0] * (8-len(self.data))
- @classmethod
- def FromStr(cls, s):
- parts = struct.unpack('>9L', s)
- return cls(parts[0], *parts[1:])
- def __str__(self):
- return struct.pack('>L'+('L'*len(self.data)), self.cmd, *self.data)
- class CMD:
- KA = 0 # No important data
- PING = 1 # Data are echoed exactly
- QUIT = 2 # No important data
- PLAY = 3 # seconds, microseconds, frequency (Hz), amplitude (0-255)
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