GY-63_MS5611/libraries/UUID/UUID.h
2023-11-23 14:08:41 +01:00

77 lines
1.6 KiB
C++

#pragma once
//
// FILE: UUID.h
// AUTHOR: Rob Tillaart
// VERSION: 0.1.6
// DATE: 2022-06-14
// PURPOSE: Arduino Library for generating UUID's
// URL: https://github.com/RobTillaart/UUID
// https://en.wikipedia.org/wiki/Universally_unique_identifier
//
// e.g. 20d24650-d900-e34f-de49-8964ab3eb46d
#include "Arduino.h"
#include "Printable.h"
#define UUID_LIB_VERSION (F("0.1.6"))
// TODO an enum?
const uint8_t UUID_MODE_VARIANT4 = 0;
const uint8_t UUID_MODE_RANDOM = 1;
/////////////////////////////////////////////////
//
// CLASS VERSION
//
class UUID : public Printable
{
public:
UUID();
// at least one seed value is mandatory, two is better.
void seed(uint32_t s1, uint32_t s2 = 0);
// generate a new UUID
void generate();
// make a UUID string
char * toCharArray();
// MODE
void setVariant4Mode();
void setRandomMode();
uint8_t getMode();
// Printable interface
size_t printTo(Print& p) const;
// CASE
// (experimental code, not tested yet)
// lower case is default and according to spec.
// upper case is an additional feature.
// must it be done at generation or at toCharArray() ?
// fast or flex
//
// void setLowerCase();
// void setUpperCase();
private:
// Marsaglia 'constants' + function
uint32_t _m_w = 1;
uint32_t _m_z = 2;
uint32_t _random();
// UUID in string format
char _buffer[37];
uint8_t _mode = UUID_MODE_VARIANT4;
// bool _upperCase = false;
};
// -- END OF FILE --