blob: 682ad33a8749a13322a825765dc22219ec97ed38 [file] [log] [blame]
/*
* 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/threads.h>
#include <string>
#include <unordered_map>
#include <vector>
#include <list>
#include "PullDataReceiver.h"
#include "StatsPuller.h"
#include "logd/LogEvent.h"
namespace android {
namespace os {
namespace statsd {
typedef struct {
// The field numbers of the fields that need to be summed when merging
// isolated uid with host uid.
std::vector<int> additiveFields;
// The field numbers of the fields that can't be merged when merging
// data belong to isolated uid and host uid.
std::vector<int> nonAdditiveFields;
// How long should the puller wait before doing an actual pull again. Default
// 1 sec. Set this to 0 if this is handled elsewhere.
long coolDownSec = 1;
// The actual puller
sp<StatsPuller> puller;
} PullAtomInfo;
class StatsPullerManagerImpl : public virtual RefBase {
public:
static StatsPullerManagerImpl& GetInstance();
void RegisterReceiver(int tagId, wp<PullDataReceiver> receiver, long intervalMs);
void UnRegisterReceiver(int tagId, wp<PullDataReceiver> receiver);
// Verify if we know how to pull for this matcher
bool PullerForMatcherExists(int tagId) const;
void OnAlarmFired();
bool Pull(const int tagId, vector<std::shared_ptr<LogEvent>>* data);
void SetTimeBaseSec(long timeBaseSec) {mTimeBaseSec = timeBaseSec;};
int ForceClearPullerCache();
int ClearPullerCacheIfNecessary(long timestampSec);
void SetStatsCompanionService(sp<IStatsCompanionService> statsCompanionService);
const static std::map<int, PullAtomInfo> kAllPullAtomInfo;
private:
StatsPullerManagerImpl();
sp<IStatsCompanionService> mStatsCompanionService = nullptr;
typedef struct {
// pull_interval_sec : last_pull_time_sec
std::pair<uint64_t, uint64_t> timeInfo;
wp<PullDataReceiver> receiver;
} ReceiverInfo;
// mapping from simple matcher tagId to receivers
std::map<int, std::list<ReceiverInfo>> mReceivers;
// locks for data receiver and StatsCompanionService changes
Mutex mLock;
void updateAlarmLocked();
long mCurrentPullingInterval;
// for pulled 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.
long mTimeBaseSec;
};
} // namespace statsd
} // namespace os
} // namespace android