internal BluetoothGattDescriptor GetDescriptor(BluetoothGattCharacteristic characteristic, string uuid)
{
BluetoothGattAttributeHandle handle;
int err = Interop.Bluetooth.BtGattCharacteristicGetDescriptor(_handle, uuid, out handle);
if (err.IsFailed())
{
GattUtil.Error(err, string.Format("Failed to get descriptor with UUID ({0})", uuid));
return(null);
}
BluetoothGattDescriptor descriptor = BluetoothGattDescriptorImpl.CreateBluetoothGattDescriptor(handle, uuid);
descriptor.SetParent(characteristic);
return(descriptor);
}
/// <summary>
/// Adds a descriptor to this characteristic.
/// </summary>
/// <param name="descriptor">The descriptor to be added.</param>
/// <returns>true on success, false otherwise.</returns>
/// <exception cref="InvalidOperationException">Thrown when the add GATT descriptor procedure fails.</exception>
/// <since_tizen> 3 </since_tizen>
public void AddDescriptor(BluetoothGattDescriptor descriptor)
{
if (Client != null)
{
BluetoothErrorFactory.ThrowBluetoothException((int)BluetoothError.NotSupported);
}
if (descriptor.GetCharacteristic() != null)
{
BluetoothErrorFactory.ThrowBluetoothException((int)BluetoothError.InvalidParameter);
}
_impl.AddDescriptor(descriptor);
descriptor.SetParent(this);
}
internal IEnumerable <BluetoothGattDescriptor> GetDescriptors(BluetoothGattCharacteristic characteristic)
{
List <BluetoothGattDescriptor> attribututeList = new List <BluetoothGattDescriptor>();
Interop.Bluetooth.BtGattForeachCallback cb = (total, index, attributeHandle, userData) =>
{
BluetoothGattAttributeHandle handle = new BluetoothGattAttributeHandle(attributeHandle, false);
BluetoothGattDescriptor descriptor = BluetoothGattDescriptorImpl.CreateBluetoothGattDescriptor(handle, "");
if (descriptor != null)
{
descriptor.SetParent(characteristic);
attribututeList.Add(descriptor);
}
return(true);
};
int err = Interop.Bluetooth.BtGattCharacteristicForeachDescriptors(characteristic.GetHandle(), cb, IntPtr.Zero);
GattUtil.Error(err, "Failed to get all descriptor");
return(attribututeList);
}
internal void AddDescriptor(BluetoothGattDescriptor descriptor)
{
int err = Interop.Bluetooth.BtGattCharacteristicAddDescriptor(_handle, descriptor.GetHandle());
GattUtil.ThrowForError(err, string.Format("Failed to add descriptor with UUID ({0})", descriptor.Uuid));
}
/// <summary>
/// Writes the value of the given descriptor to the remote device asynchronously.
/// </summary>
/// <param name="descriptor">The descriptor to be written.</param>
/// <returns>true on success, false otherwise.</returns>
/// <exception cref="InvalidOperationException">Thrown when the BT/BTLE is not enabled
/// or when the remote device is disconnected, or when the write attribute value fails.</exception>
/// <since_tizen> 3 </since_tizen>
public async Task <bool> WriteValueAsync(BluetoothGattDescriptor descriptor)
{
return(await _impl.WriteValueAsyncTask(descriptor.GetHandle()));
}
