def value(self, val) -> None:
adapter.await_bleak(
# pylint: disable=protected-access
self.characteristic.service.connection._bleak_client.write_gatt_descriptor(
self.uuid.string, val
)
)
def value(self) -> bytes:
"""The value of this descriptor."""
return adapter.await_bleak(
# pylint: disable=protected-access
self.characteristic.service.connection._bleak_client.read_gatt_descriptor(
self.uuid.string
)
)
def readinto(self, buf: Buf) -> Union[int, None]:
"""Read bytes into the ``buf``. Read at most ``len(buf)`` bytes.
:return: number of bytes read and stored into ``buf``
"""
length = len(buf)
idx = 0
end = time.time() + self._timeout
while idx < length and time.time() < end:
try:
buf[idx] = self._queue.get_nowait()
idx += 1
except queue.Empty:
# Let the BLE code run for a bit, and try again.
adapter.await_bleak(asyncio.sleep(0.1))
return idx
def readline(self, ) -> Buf:
"""Read a line, ending in a newline character.
:return: the line read
"""
line = bytearray()
end = time.time() + self._timeout
while time.time() < end:
try:
b = self._queue.get_nowait()
line.append(b)
except queue.Empty:
# Let the BLE code run for a bit, and try again.
adapter.await_bleak(asyncio.sleep(0.1))
continue
if b == 0x0A: # newline
break
return line