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/*
* Copyright (C) 2019 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 <gtest/gtest_prod.h>
#include <map>
#include <mutex>
#include <vector>
#include "stats_event.h"
#include "stats_event_list.h"
using std::map;
using std::vector;
struct AStatsEventApi {
// Indicates whether the below function pointers have been set using dlsym.
bool initialized = false;
AStatsEvent* (*obtain)(void);
void (*build)(AStatsEvent*);
int (*write)(AStatsEvent*);
void (*release)(AStatsEvent*);
void (*setAtomId)(AStatsEvent*, uint32_t);
void (*writeInt32)(AStatsEvent*, int32_t);
void (*writeInt64)(AStatsEvent*, int64_t);
void (*writeFloat)(AStatsEvent*, float);
void (*writeBool)(AStatsEvent*, bool);
void (*writeByteArray)(AStatsEvent*, const uint8_t*, size_t);
void (*writeString)(AStatsEvent*, const char*);
void (*writeAttributionChain)(AStatsEvent*, const uint32_t*, const char* const*, uint8_t);
void (*addBoolAnnotation)(AStatsEvent*, uint8_t, bool);
void (*addInt32Annotation)(AStatsEvent*, uint8_t, int32_t);
};
class StatsEventCompat {
public:
StatsEventCompat();
~StatsEventCompat();
void setAtomId(int32_t atomId);
void writeInt32(int32_t value);
void writeInt64(int64_t value);
void writeFloat(float value);
void writeBool(bool value);
void writeByteArray(const char* buffer, size_t length);
void writeString(const char* value);
// Pre-condition: numUids == tags.size()
void writeAttributionChain(const int32_t* uids, size_t numUids,
const vector<const char*>& tags);
void writeKeyValuePairs(const map<int, int32_t>& int32Map, const map<int, int64_t>& int64Map,
const map<int, const char*>& stringMap,
const map<int, float>& floatMap);
void addBoolAnnotation(uint8_t annotationId, bool value);
void addInt32Annotation(uint8_t annotationId, int32_t value);
int writeToSocket();
private:
// static member variables
const static bool mPlatformAtLeastR;
static bool mAttemptedLoad;
static std::mutex mLoadLock;
static AStatsEventApi mAStatsEventApi;
// non-static member variables
AStatsEvent* mEventR = nullptr;
stats_event_list mEventQ;
template <class T>
void writeKeyValuePairMap(const map<int, T>& keyValuePairMap);
void initializeApiTableLocked(void* handle);
bool useRSchema();
bool useQSchema();
FRIEND_TEST(StatsEventCompatTest, TestDynamicLoading);
};
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