def get_master_crc_from_filter_crcs(input_data: [[int, int]]) -> int:
"""
Get the master CRC from filter CRCs.
:param input_data: A list of [filterId, filterCRC].
:returns: The master CRC.
"""
def sort_method(val):
return val[0]
input_data.sort(key=sort_method)
# Check for duplicate filter IDs.
for i in range(0, len(input_data) - 1):
if input_data[i][0] == input_data[i + 1][0]:
raise CrownstoneException(
CrownstoneError.INVALID_INPUT,
"Cannot have 2 filters with the same ID.")
writer = BufferWriter()
for id_and_filter_crc in input_data:
writer.putUInt8(id_and_filter_crc[0])
writer.putUInt32(id_and_filter_crc[1])
return crc32(writer.getBuffer())
def getPowerSamplesRequestPacket(samplesType, index):
buffer = BufferWriter()
buffer.putUInt8(samplesType)
buffer.putUInt8(index)
data = buffer.getBuffer()
return ControlPacket(
ControlType.GET_POWER_SAMPLES).loadByteArray(data).serialize()
def serialize(self):
writer = BufferWriter()
writer.putUInt8(self.type)
writer.putUInt8(self.flags)
writer.putUInt8(self.timeout_or_transmissions)
writer.putUInt8(len(self.crownstoneIds))
for stoneId in self.crownstoneIds:
writer.putUInt8(stoneId)
writer.putBytes(self.payload)
return writer.getBuffer()
def toBuffer(self, data=None) -> list:
if isinstance(data, BufferWriter):
writer = data
self._toBuffer(writer)
buf = writer.getBuffer()
return buf
else:
writer = BufferWriter()
self._toBuffer(writer)
buf = writer.getBuffer()
if data is None:
return buf
else:
data.extend(buf)
return data
def serialize(self):
writer = BufferWriter()
writer.putUInt8(self.crownstoneId)
writer.putUInt8(self.state)
return writer.getBuffer()
def serialize(self):
writer = BufferWriter()
writer.putUInt8(len(self.packets))
for stonePacket in self.packets:
writer.putBytes(stonePacket.serialize())
return writer.getBuffer()