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Diffstat (limited to '')
| -rw-r--r-- | src/common/telemetry.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/common/telemetry.h b/src/common/telemetry.h new file mode 100644 index 000000000..dd6bbd759 --- /dev/null +++ b/src/common/telemetry.h @@ -0,0 +1,196 @@ +// 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, ///< Citra 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, const T& value) + : type(type), name(std::move(name)), value(value) {} + + Field(FieldType type, std::string name, T&& value) + : type(type), name(std::move(name)), value(std::move(value)) {} + + Field(const Field& other) : Field(other.type, other.name, other.value) {} + + Field& operator=(const Field& other) { + type = other.type; + name = other.name; + value = other.value; + return *this; + } + + Field& operator=(Field&& other) { + type = other.type; + name = std::move(other.name); + value = std::move(other.value); + return *this; + } + + 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; + } + + inline bool operator==(const Field<T>& other) { + return (type == other.type) && (name == other.name) && (value == other.value); + } + + inline bool operator!=(const Field<T>& other) { + 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 |