1/* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package android.hardware.automotive.can@1.0; 17 18/** 19 * Represents a generic close handle to remove a callback that doesn't need 20 * active interface. 21 * 22 * When close() is called OR when the interface is released, the underlying 23 * resources must be freed. 24 */ 25interface ICloseHandle { 26 /** 27 * Closes the handle. 28 * 29 * The call must not fail and must be issued by the client at most once. 30 * Otherwise, the server must ignore subsequent calls. 31 */ 32 close(); 33}; 34