suyu/src/common/telemetry.h
Lioncash c65a8fafa0 telemetry: Remove unnecessary Field constructor
We can just take the value parameter by value which allows both moving
into it, and copies at the same time, depending on the calling code.
2018-07-18 00:32:35 -04:00

183 lines
5.8 KiB
C++

// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <chrono>
#include <map>
#include <memory>
#include <string>
#include "common/common_types.h"
namespace Telemetry {
/// Field type, used for grouping fields together in the final submitted telemetry log
enum class FieldType : u8 {
None = 0, ///< No specified field group
App, ///< yuzu application fields (e.g. version, branch, etc.)
Session, ///< Emulated session fields (e.g. title ID, log, etc.)
Performance, ///< Emulated performance (e.g. fps, emulated CPU speed, etc.)
UserFeedback, ///< User submitted feedback (e.g. star rating, user notes, etc.)
UserConfig, ///< User configuration fields (e.g. emulated CPU core, renderer, etc.)
UserSystem, ///< User system information (e.g. host CPU type, RAM, etc.)
};
struct VisitorInterface;
/**
* Interface class for telemetry data fields.
*/
class FieldInterface : NonCopyable {
public:
virtual ~FieldInterface() = default;
/**
* Accept method for the visitor pattern.
* @param visitor Reference to the visitor that will visit this field.
*/
virtual void Accept(VisitorInterface& visitor) const = 0;
/**
* Gets the name of this field.
* @returns Name of this field as a string.
*/
virtual const std::string& GetName() const = 0;
};
/**
* Represents a telemetry data field, i.e. a unit of data that gets logged and submitted to our
* telemetry web service.
*/
template <typename T>
class Field : public FieldInterface {
public:
Field(FieldType type, std::string name, T value)
: name(std::move(name)), type(type), value(std::move(value)) {}
Field(const Field&) = default;
Field& operator=(const Field&) = default;
Field(Field&&) = default;
Field& operator=(Field&& other) = default;
void Accept(VisitorInterface& visitor) const override;
const std::string& GetName() const override {
return name;
}
/**
* Returns the type of the field.
*/
FieldType GetType() const {
return type;
}
/**
* Returns the value of the field.
*/
const T& GetValue() const {
return value;
}
bool operator==(const Field& other) const {
return (type == other.type) && (name == other.name) && (value == other.value);
}
bool operator!=(const Field& other) const {
return !(*this == other);
}
private:
std::string name; ///< Field name, must be unique
FieldType type{}; ///< Field type, used for grouping fields together
T value; ///< Field value
};
/**
* Collection of data fields that have been logged.
*/
class FieldCollection final : NonCopyable {
public:
FieldCollection() = default;
/**
* Accept method for the visitor pattern, visits each field in the collection.
* @param visitor Reference to the visitor that will visit each field.
*/
void Accept(VisitorInterface& visitor) const;
/**
* Creates a new field and adds it to the field collection.
* @param type Type of the field to add.
* @param name Name of the field to add.
* @param value Value for the field to add.
*/
template <typename T>
void AddField(FieldType type, const char* name, T value) {
return AddField(std::make_unique<Field<T>>(type, name, std::move(value)));
}
/**
* Adds a new field to the field collection.
* @param field Field to add to the field collection.
*/
void AddField(std::unique_ptr<FieldInterface> field);
private:
std::map<std::string, std::unique_ptr<FieldInterface>> fields;
};
/**
* Telemetry fields visitor interface class. A backend to log to a web service should implement
* this interface.
*/
struct VisitorInterface : NonCopyable {
virtual ~VisitorInterface() = default;
virtual void Visit(const Field<bool>& field) = 0;
virtual void Visit(const Field<double>& field) = 0;
virtual void Visit(const Field<float>& field) = 0;
virtual void Visit(const Field<u8>& field) = 0;
virtual void Visit(const Field<u16>& field) = 0;
virtual void Visit(const Field<u32>& field) = 0;
virtual void Visit(const Field<u64>& field) = 0;
virtual void Visit(const Field<s8>& field) = 0;
virtual void Visit(const Field<s16>& field) = 0;
virtual void Visit(const Field<s32>& field) = 0;
virtual void Visit(const Field<s64>& field) = 0;
virtual void Visit(const Field<std::string>& field) = 0;
virtual void Visit(const Field<const char*>& field) = 0;
virtual void Visit(const Field<std::chrono::microseconds>& field) = 0;
/// Completion method, called once all fields have been visited
virtual void Complete() = 0;
};
/**
* Empty implementation of VisitorInterface that drops all fields. Used when a functional
* backend implementation is not available.
*/
struct NullVisitor : public VisitorInterface {
~NullVisitor() = default;
void Visit(const Field<bool>& /*field*/) override {}
void Visit(const Field<double>& /*field*/) override {}
void Visit(const Field<float>& /*field*/) override {}
void Visit(const Field<u8>& /*field*/) override {}
void Visit(const Field<u16>& /*field*/) override {}
void Visit(const Field<u32>& /*field*/) override {}
void Visit(const Field<u64>& /*field*/) override {}
void Visit(const Field<s8>& /*field*/) override {}
void Visit(const Field<s16>& /*field*/) override {}
void Visit(const Field<s32>& /*field*/) override {}
void Visit(const Field<s64>& /*field*/) override {}
void Visit(const Field<std::string>& /*field*/) override {}
void Visit(const Field<const char*>& /*field*/) override {}
void Visit(const Field<std::chrono::microseconds>& /*field*/) override {}
void Complete() override {}
};
} // namespace Telemetry