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/*
* Author: Sven Gothel <sgothel@jausoft.com>
* Copyright (c) 2020 Gothel Software e.K.
* Copyright (c) 2020 ZAFENA AB
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef UUID_HPP_
#define UUID_HPP_
#include <cstring>
#include <string>
#include <memory>
#include <cstdint>
#include <vector>
#include "BasicTypes.hpp"
namespace direct_bt {
class uuid128_t; // forward
/**
* Bluetooth UUID <https://www.bluetooth.com/specifications/assigned-numbers/service-discovery/>
* <p>
* Bluetooth is LSB or Little-Endian!
* </p>
* <p>
* BASE_UUID '00000000-0000-1000-8000-00805F9B34FB'
* </p>
*/
extern uuid128_t BT_BASE_UUID;
class uuid_t {
public:
/** Underlying integer value present octet count */
enum class TypeSize : int {
UUID16_SZ=2, UUID32_SZ=4, UUID128_SZ=16
};
static inline int number(const TypeSize rhs) noexcept {
return static_cast<int>(rhs);
}
private:
TypeSize type;
protected:
uuid_t(TypeSize const type) : type(type) {}
public:
static TypeSize toTypeSize(const int size);
static std::shared_ptr<const uuid_t> create(TypeSize const t, uint8_t const * const buffer, int const byte_offset, bool const littleEndian);
virtual ~uuid_t() noexcept {}
uuid_t(const uuid_t &o) noexcept = default;
uuid_t(uuid_t &&o) noexcept = default;
uuid_t& operator=(const uuid_t &o) noexcept = default;
uuid_t& operator=(uuid_t &&o) noexcept = default;
virtual bool operator==(uuid_t const &o) const noexcept {
if( this == &o ) {
return true;
}
return type == o.type;
}
bool operator!=(uuid_t const &o) const noexcept
{ return !(*this == o); }
TypeSize getTypeSize() const noexcept { return type; }
int getTypeSizeInt() const noexcept { return uuid_t::number(type); }
uuid128_t toUUID128(uuid128_t const & base_uuid=BT_BASE_UUID, int const uuid32_le_octet_index=12) const noexcept;
/** returns the pointer to the uuid data of size getTypeSize() */
virtual const uint8_t * data() const noexcept { return nullptr; }
virtual std::string toString() const noexcept { return ""; }
virtual std::string toUUID128String(uuid128_t const & base_uuid=BT_BASE_UUID, int const le_octet_index=12) const noexcept;
};
class uuid16_t : public uuid_t {
public:
uint16_t value;
uuid16_t(uint16_t const v) noexcept
: uuid_t(TypeSize::UUID16_SZ), value(v) { }
uuid16_t(uint8_t const * const buffer, int const byte_offset, bool const littleEndian) noexcept
: uuid_t(TypeSize::UUID16_SZ), value(get_uint16(buffer, byte_offset, littleEndian)) { }
uuid16_t(const uuid16_t &o) noexcept = default;
uuid16_t(uuid16_t &&o) noexcept = default;
uuid16_t& operator=(const uuid16_t &o) noexcept = default;
uuid16_t& operator=(uuid16_t &&o) noexcept = default;
bool operator==(uuid_t const &o) const noexcept override {
if( this == &o ) {
return true;
}
return getTypeSize() == o.getTypeSize() && value == static_cast<uuid16_t const *>(&o)->value;
}
const uint8_t * data() const noexcept override { return static_cast<uint8_t*>(static_cast<void*>(const_cast<uint16_t*>(&value))); }
std::string toString() const noexcept override;
std::string toUUID128String(uuid128_t const & base_uuid=BT_BASE_UUID, int const le_octet_index=12) const noexcept override;
};
class uuid32_t : public uuid_t {
public:
uint32_t value;
uuid32_t(uint32_t const v) noexcept
: uuid_t(TypeSize::UUID32_SZ), value(v) {}
uuid32_t(uint8_t const * const buffer, int const byte_offset, bool const littleEndian) noexcept
: uuid_t(TypeSize::UUID32_SZ), value(get_uint32(buffer, byte_offset, littleEndian)) { }
uuid32_t(const uuid32_t &o) noexcept = default;
uuid32_t(uuid32_t &&o) noexcept = default;
uuid32_t& operator=(const uuid32_t &o) noexcept = default;
uuid32_t& operator=(uuid32_t &&o) noexcept = default;
bool operator==(uuid_t const &o) const noexcept override {
if( this == &o ) {
return true;
}
return getTypeSize() == o.getTypeSize() && value == static_cast<uuid32_t const *>(&o)->value;
}
const uint8_t * data() const noexcept override { return static_cast<uint8_t*>(static_cast<void*>(const_cast<uint32_t*>(&value))); }
std::string toString() const noexcept override;
std::string toUUID128String(uuid128_t const & base_uuid=BT_BASE_UUID, int const le_octet_index=12) const noexcept override;
};
class uuid128_t : public uuid_t {
public:
uint128_t value;
uuid128_t() noexcept : uuid_t(TypeSize::UUID128_SZ) { bzero(value.data, sizeof(value)); }
uuid128_t(uint128_t const v) noexcept
: uuid_t(TypeSize::UUID128_SZ), value(v) {}
uuid128_t(const std::string str);
uuid128_t(uint8_t const * const buffer, int const byte_offset, bool const littleEndian) noexcept
: uuid_t(TypeSize::UUID128_SZ), value(get_uint128(buffer, byte_offset, littleEndian)) { }
uuid128_t(uuid16_t const & uuid16, uuid128_t const & base_uuid=BT_BASE_UUID, int const uuid16_le_octet_index=12) noexcept;
uuid128_t(uuid32_t const & uuid32, uuid128_t const & base_uuid=BT_BASE_UUID, int const uuid32_le_octet_index=12) noexcept;
uuid128_t(const uuid128_t &o) noexcept = default;
uuid128_t(uuid128_t &&o) noexcept = default;
uuid128_t& operator=(const uuid128_t &o) noexcept = default;
uuid128_t& operator=(uuid128_t &&o) noexcept = default;
bool operator==(uuid_t const &o) const noexcept override {
if( this == &o ) {
return true;
}
return getTypeSize() == o.getTypeSize() && value == static_cast<uuid128_t const *>(&o)->value;
}
const uint8_t * data() const noexcept override { return value.data; }
std::string toString() const noexcept override;
std::string toUUID128String(uuid128_t const & base_uuid=BT_BASE_UUID, int const le_octet_index=12) const noexcept override {
(void)base_uuid;
(void)le_octet_index;
return toString();
}
};
inline void put_uuid(uint8_t * buffer, int const byte_offset, const uuid_t &v) noexcept
{
switch(v.getTypeSize()) {
case uuid_t::TypeSize::UUID16_SZ:
put_uint16(buffer, byte_offset, static_cast<const uuid16_t &>(v).value);
break;
case uuid_t::TypeSize::UUID32_SZ:
put_uint32(buffer, byte_offset, static_cast<const uuid32_t &>(v).value);
break;
case uuid_t::TypeSize::UUID128_SZ:
put_uint128(buffer, byte_offset, static_cast<const uuid128_t &>(v).value);
break;
}
}
inline void put_uuid(uint8_t * buffer, int const byte_offset, const uuid_t &v, bool littleEndian) noexcept
{
switch(v.getTypeSize()) {
case uuid_t::TypeSize::UUID16_SZ:
put_uint16(buffer, byte_offset, static_cast<const uuid16_t &>(v).value, littleEndian);
break;
case uuid_t::TypeSize::UUID32_SZ:
put_uint32(buffer, byte_offset, static_cast<const uuid32_t &>(v).value, littleEndian);
break;
case uuid_t::TypeSize::UUID128_SZ:
put_uint128(buffer, byte_offset, static_cast<const uuid128_t &>(v).value, littleEndian);
break;
}
}
inline uuid16_t get_uuid16(uint8_t const * buffer, int const byte_offset) noexcept
{
return uuid16_t(get_uint16(buffer, byte_offset));
}
inline uuid16_t get_uuid16(uint8_t const * buffer, int const byte_offset, bool littleEndian) noexcept
{
return uuid16_t(get_uint16(buffer, byte_offset, littleEndian));
}
inline uuid32_t get_uuid32(uint8_t const * buffer, int const byte_offset) noexcept
{
return uuid32_t(get_uint32(buffer, byte_offset));
}
inline uuid32_t get_uuid32(uint8_t const * buffer, int const byte_offset, bool littleEndian) noexcept
{
return uuid32_t(get_uint32(buffer, byte_offset, littleEndian));
}
inline uuid128_t get_uuid128(uint8_t const * buffer, int const byte_offset) noexcept
{
return uuid128_t(get_uint128(buffer, byte_offset));
}
inline uuid128_t get_uuid128(uint8_t const * buffer, int const byte_offset, bool littleEndian) noexcept
{
return uuid128_t(get_uint128(buffer, byte_offset, littleEndian));
}
} /* namespace direct_bt */
#endif /* UUID_HPP_ */
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