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);
}
internal static BluetoothGattDescriptor CreateBluetoothGattDescriptor(BluetoothGattAttributeHandle handle, string uuid)
{
int permission;
int err = Interop.Bluetooth.BtGattDescriptorGetPermissions(handle, out permission);
GattUtil.ThrowForError(err, string.Format("Failed to get permissions with UUID ({0})", uuid));
if (uuid == "")
{
int ret = Interop.Bluetooth.BtGattGetUuid(handle, out uuid);
GattUtil.ThrowForError(ret, "Failed to get UUID");
}
BluetoothGattDescriptorImpl impl = new BluetoothGattDescriptorImpl(handle);
return(new BluetoothGattDescriptor(impl, uuid, (BluetoothGattPermission)permission));
}
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 BluetoothGattDescriptor(BluetoothGattDescriptorImpl impl, string uuid, BluetoothGattPermission permission) : base(uuid, permission)
{
_impl = impl;
}
/// <summary>
/// The constructor.
/// </summary>
/// <param name="uuid">The UUID of the descriptor.</param>
/// <param name="permisions">Permissions for the descriptor.</param>
/// <param name="value">The value associated with the descriptor.</param>
/// <remarks>throws in case of internal error.</remarks>
/// <exception cref="InvalidOperationException">Thrown when the create GATT descriptor procedure fails.</exception>
/// <since_tizen> 3 </since_tizen>
public BluetoothGattDescriptor(string uuid, BluetoothGattPermission permisions, byte[] value) : base(uuid, permisions)
{
_impl = new BluetoothGattDescriptorImpl(uuid, permisions, value);
}