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/*
* 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.
*/
#ifndef STATS_LOG_EVENT_WRAPPER_H
#define STATS_LOG_EVENT_WRAPPER_H
#include <binder/Parcel.h>
#include <binder/Parcelable.h>
#include <binder/Status.h>
#include <utils/RefBase.h>
#include <vector>
namespace android {
namespace os {
/**
* A wrapper for a union type to contain multiple types of values.
*
*/
struct StatsLogValue {
// Keep in sync with FieldValue.h
enum STATS_LOG_VALUE_TYPE {
UNKNOWN = 0,
INT = 1,
LONG = 2,
FLOAT = 3,
DOUBLE = 4,
STRING = 5,
STORAGE = 6
};
StatsLogValue() : type(UNKNOWN) {}
StatsLogValue(int32_t v) {
int_value = v;
type = INT;
}
StatsLogValue(int64_t v) {
long_value = v;
type = LONG;
}
StatsLogValue(float v) {
float_value = v;
type = FLOAT;
}
StatsLogValue(const std::string& v) {
str_value = v;
type = STRING;
}
void setType(STATS_LOG_VALUE_TYPE t) { type = t; }
union {
int32_t int_value;
int64_t long_value;
float float_value;
double double_value;
};
std::string str_value;
std::vector<uint8_t> storage_value;
STATS_LOG_VALUE_TYPE type;
};
// Represents a parcelable object. Only used to send data from Android OS to statsd.
class StatsLogEventWrapper : public android::Parcelable {
public:
StatsLogEventWrapper();
StatsLogEventWrapper(StatsLogEventWrapper&& in) = default;
android::status_t writeToParcel(android::Parcel* out) const;
android::status_t readFromParcel(const android::Parcel* in);
int getTagId() const { return mTagId; }
int64_t getElapsedRealTimeNs() const { return mElapsedRealTimeNs; }
int64_t getWallClockTimeNs() const { return mWallClockTimeNs; }
std::vector<StatsLogValue> getElements() const { return mElements; }
private:
int mTagId;
int64_t mElapsedRealTimeNs;
int64_t mWallClockTimeNs;
std::vector<StatsLogValue> mElements;
};
} // Namespace os
} // Namespace android
#endif // STATS_LOG_EVENT_WRAPPER_H
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