def _VoidPtrToCBUUID(ptr, len):
try:
ptr = _VoidPtrToByteArray(ptr, len)
ptr = binascii.hexlify(ptr)
ptr = ptr[:8] + '-' + ptr[8:12] + '-' + ptr[12:16] + '-' + ptr[16:20] + '-' + ptr[20:]
ptr = CBUUID.UUIDWithString_(ptr)
except:
print "ERROR: failed to convert void * to CBUUID"
ptr = None
return ptr
def WriteBleCharacteristic(self, connObj, svcId, charId, buffer, length):
self.logger.debug("write start")
result = False
if self.target and self.target.Connected:
converted_data = str(_VoidPtrToByteArray(buffer, length))
self.charId_tx = bytearray(
uuid.UUID(str(_VoidPtrToUUIDString(charId, 16))).bytes)
self.svcId_tx = bytearray(
uuid.UUID(str(_VoidPtrToUUIDString(svcId, 16))).bytes)
self.tx.WriteValue(
dbus.Array([dbus.Byte(ord(i)) for i in converted_data], 'y'),
options="",
reply_handler=self.WriteCharactertisticSuccessCB,
error_handler=self.WriteCharactertisticErrorCB,
timeout=bleWriteCharacteristicTimeoutSec)
result = True
else:
self.logger.warning("WARNING: peripheral is no longer connected.")
return result
def WriteBleCharacteristic(self, connObj, svcId, charId, buffer, length):
""" Called by WeaveDeviceMgr.py to satisfy a request by Weave to transmit a packet over BLE."""
result = False
bytes = _VoidPtrToByteArray(buffer, length)
bytes = NSData.dataWithBytes_length_(bytes, len(bytes)) # convert bytearray to NSData
svcId = _VoidPtrToCBUUID(svcId, 16)
charId = _VoidPtrToCBUUID(charId, 16)
if self.peripheral and self.peripheral.state() != BlePeripheralState_Disconnected:
for char in self.characteristics[svcId]:
if char.UUID() == charId:
self.peripheral.writeValue_forCharacteristic_type_(bytes, char, CBCharacteristicWriteWithResponse)
result = True
break
else:
self.logger.warning("WARNING: peripheral is no longer connected.")
return result