1/*
2 * Copyright (C) 2018 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 [email protected];
18
19import @1.0::ErrorStatus;
20import @1.0::IPreparedModelCallback;
21import IPreparedModel;
22
23/**
24 * IPreparedModelCallback must be used to return a prepared model produced by an
25 * asynchronous task launched from IDevice::prepareModel.
26 */
27interface IPreparedModelCallback extends @1.0::IPreparedModelCallback {
28
29    /**
30     * Either notify_1_2 or notify must be invoked immediately after the asynchronous
31     * task holding this callback has finished preparing the model. If the model was
32     * successfully prepared, either notify_1_2 or notify must be invoked with
33     * ErrorStatus::NONE and the prepared model. If the model was not able to be
34     * successfully prepared, either notify_1_2 or notify must be invoked with the
35     * appropriate ErrorStatus and nullptr as the IPreparedModel. If the asynchronous
36     * task holding this callback fails to launch or if the model provided to
37     * IDevice::prepareModel is invalid, either notify_1_2 or notify must be invoked
38     * with the appropriate error as well as nullptr for the IPreparedModel.
39     *
40     * @param status Error status returned from the asynchronous model
41     *               preparation task; must be:
42     *               - NONE if the asynchronous task successfully prepared the
43     *                 model
44     *               - DEVICE_UNAVAILABLE if driver is offline or busy
45     *               - GENERAL_FAILURE if the asynchronous task resulted in an
46     *                 unspecified error
47     *               - INVALID_ARGUMENT if one of the input arguments to
48     *                 prepareModel is invalid
49     * @param preparedModel A model that has been asynchronously prepared for
50     *                      execution. If the model was unable to be prepared
51     *                      due to an error, nullptr must be passed in place of
52     *                      the IPreparedModel object.
53     */
54    oneway notify_1_2(ErrorStatus status, IPreparedModel preparedModel);
55};
56