| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <android/os/IStatsCompanionService.h> |
| #include <binder/IServiceManager.h> |
| #include <utils/RefBase.h> |
| #include <utils/String16.h> |
| #include <utils/String8.h> |
| #include <utils/threads.h> |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| #include "PullDataReceiver.h" |
| #include "StatsPuller.h" |
| #include "logd/LogEvent.h" |
| |
| namespace android { |
| namespace os { |
| namespace statsd { |
| |
| class StatsPullerManager : public virtual RefBase { |
| public: |
| static StatsPullerManager& GetInstance(); |
| |
| void RegisterReceiver(int pullCode, sp<PullDataReceiver> receiver, long intervalMs); |
| |
| void UnRegisterReceiver(int pullCode, sp<PullDataReceiver> receiver); |
| |
| // We return a vector of shared_ptr since LogEvent's copy constructor is not available. |
| vector<std::shared_ptr<LogEvent>> Pull(const int pullCode, const uint64_t timestampSec); |
| |
| // Translate metric name to pullCodes. |
| // return -1 if no valid pullCode is found |
| int GetPullCode(std::string metricName); |
| |
| void OnAlarmFired(); |
| |
| private: |
| StatsPullerManager(); |
| |
| sp<IStatsCompanionService> mStatsCompanionService = nullptr; |
| |
| sp<IStatsCompanionService> get_stats_companion_service(); |
| |
| std::unordered_map<int, std::unique_ptr<StatsPuller>> mPullers; |
| |
| |
| |
| // internal state of a bucket. |
| typedef struct { |
| // pull_interval_sec : last_pull_time_sec |
| std::pair<uint64_t, uint64_t> timeInfo; |
| sp<PullDataReceiver> receiver; |
| } ReceiverInfo; |
| |
| std::map<int, std::vector<ReceiverInfo>> mReceivers; |
| |
| Mutex mReceiversLock; |
| |
| long mCurrentPullingInterval; |
| |
| // for value metrics, it is important for the buckets to be aligned to multiple of smallest |
| // bucket size. All pulled metrics start pulling based on this time, so that they can be |
| // correctly attributed to the correct buckets. Pulled data attach a timestamp which is the |
| // request time. |
| const long mPullStartTimeMs; |
| |
| long get_pull_start_time_ms(); |
| |
| LogEvent parse_pulled_data(String16 data); |
| |
| static const std::unordered_map<std::string, int> kPullCodes; |
| }; |
| |
| } // namespace statsd |
| } // namespace os |
| } // namespace android |