1/*
2 * Copyright (C) 2017 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 */
16
17package android.hardware.neuralnetworks@1.0;
18
19/**
20 * IExecutionCallback must be used to return the error status result from an
21 * execution asynchronously launched from IPreparedModel::execute.
22 */
23interface IExecutionCallback {
24
25    /**
26     * notify must be invoked immediately after the asynchronous task has
27     * finished performing the execution. notify must be provided with the
28     * ErrorStatus resulting from the execution. If the asynchronous task
29     * is not launched, notify must be invoked with the appropriate error.
30     *
31     * @param status Error status returned from launching the asynchronous task
32     *               (if the launch fails) or from the asynchronous task itself
33     *               (if the launch succeeds). Must be:
34     *               - NONE if the asynchronous execution was successful
35     *               - DEVICE_UNAVAILABLE if driver is offline or busy
36     *               - GENERAL_FAILURE if the asynchronous task resulted in an
37     *                 unspecified error
38     *               - OUTPUT_INSUFFICIENT_SIZE if provided output buffer is
39     *                 not large enough to store the resultant values
40     *               - INVALID_ARGUMENT if one of the input arguments to
41     *                 prepareModel is invalid
42     */
43    oneway notify(ErrorStatus status);
44};
45