1 /*
2  * Copyright 2021 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 #pragma once
17 
18 #include <unordered_map>
19 
20 #include "module.h"
21 #include "os/repeating_alarm.h"
22 
23 namespace bluetooth {
24 namespace metrics {
25 
26 class CounterMetrics : public bluetooth::Module {
27  public:
28   bool CacheCount(int32_t key, int64_t value);
29   virtual bool Count(int32_t key, int64_t count);
30   void Stop() override;
31   static const ModuleFactory Factory;
32 
33  protected:
34   void ListDependencies(ModuleList* list) const override;
35   void Start() override;
ToString()36   std::string ToString() const override {
37     return std::string("BluetoothCounterMetrics");
38   }
39   void DrainBufferedCounters();
IsInitialized()40   virtual bool IsInitialized() {
41     return initialized_;
42   }
43 
44  private:
45   std::unordered_map<int32_t, int64_t> counters_;
46   mutable std::mutex mutex_;
47   std::unique_ptr<os::RepeatingAlarm> alarm_;
48   bool initialized_ {false};
49 };
50 
51 }  // namespace metrics
52 }  // namespace bluetooth