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  */
16 package android.automotive.computepipe.registry;
17 
18 import android.automotive.computepipe.registry.IClientInfo;
19 import android.automotive.computepipe.runner.IPipeRunner;
20 
21 /**
22  * Provides mechanism for pipe/graph runner discovery
23  */
24 @VintfStability
25 interface IPipeQuery {
26     /**
27      * A client will lookup the registered graphs using this method
28      * The registry implementation will return all the graphs registered.
29      * The registration is a one time event.
30      *
31      * @param out get supported graphs by name
32      */
getGraphList()33     @utf8InCpp String[] getGraphList();
34 
35     /**
36      * Returns the graph runner for a specific graph
37      *
38      * Once the client has found the graph it is interested in using
39      * getGraphList(), it will use this to retrieve the runner for that graph.
40      * It is possible that between the GraphList retrieval and the invocation of
41      * this method the runner for this graph has gone down. In which case appropriate binder
42      * status will be used to report such an event.
43      *
44      * @param: graphId graph name for which corresponding runner is sought.
45      * @param: info retrieve client information for match purposes when needed
46      * @return handle to interact with specific graph
47      */
getPipeRunner(in @tf8InCpp String graphName, in IClientInfo info)48     IPipeRunner getPipeRunner(in @utf8InCpp String graphName, in IClientInfo info);
49 }
50