1 /*
2  * Copyright 2016 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 
17 #pragma once
18 
19 #include <hardware/bluetooth.h>
20 
21 struct uid_set_t;
22 typedef struct uid_set_t uid_set_t;
23 
24 /**
25  * Creates a UID set to keep track of traffic per UID.
26  * Caller is responsible for destroying this object via uid_set_destroy().
27  */
28 uid_set_t* uid_set_create();
29 
30 void uid_set_destroy(uid_set_t* set);
31 
32 void uid_set_add_tx(uid_set_t* set, int32_t app_uid, uint64_t bytes);
33 void uid_set_add_rx(uid_set_t* set, int32_t app_uid, uint64_t bytes);
34 
35 /**
36  * Returns an array of bt_uid_traffic_t structs, where the end of the array
37  * is signaled by an element with app_uid == -1.
38  *
39  * The caller is responsible for calling osi_free() on the returned array.
40  */
41 bt_uid_traffic_t* uid_set_read_and_clear(uid_set_t* set);
42