CWE-ou-minkata/Sources/Plasma/NucleusLib/pnUtils/pnUtUuid.h

/*==LICENSE==*

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*==LICENSE==*/
/*****************************************************************************
*
*   $/Plasma20/Sources/Plasma/NucleusLib/pnUtils/Private/pnUtUuid.h
*   
***/

#ifndef PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNUTILS_PRIVATE_PNUTUUID_H
#define PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNUTILS_PRIVATE_PNUTUUID_H

#include "Pch.h"

/*****************************************************************************
*
*   Types
*
***/

struct Uuid;

/*****************************************************************************
*
*   Constants
*
***/

extern const Uuid kNilGuid;


/*****************************************************************************
*
*   Functions
*
***/

// Using 'Guid' here instead of 'Uuid' to avoid name clash with windows API =(

bool            GuidFromString (const wchar_t str[], Uuid * uuid);
bool            GuidFromString (const char str[], Uuid * uuid);
int             GuidCompare (const Uuid & a, const Uuid & b);
inline bool     GuidsAreEqual (const Uuid & a, const Uuid & b) { return 0 == GuidCompare(a, b); }
bool            GuidIsNil (const Uuid & uuid);
const wchar_t *   GuidToString (const Uuid & uuid, wchar_t * dst, unsigned chars);  // returns dst
const char *    GuidToString (const Uuid & uuid, char * dst, unsigned chars);   // returns dst
bool            GuidFromHex (const uint8_t buf[], unsigned length, Uuid * uuid);


/*****************************************************************************
*
*   Uuid
*
***/

#pragma pack(push, 1)
struct Uuid {
    union {
        uint32_t   uint32_ts[4];
        uint8_t    data[16];
    };

    Uuid () {}
    Uuid (const wchar_t str[]);
    Uuid (const uint8_t buf[], unsigned length);
    operator bool ()                           const { return !GuidIsNil(*this); }
    inline bool operator ! ()                  const { return GuidIsNil(*this); }
    inline bool operator <  (const Uuid & rhs) const { return GuidCompare(*this, rhs) < 0; }
    inline bool operator == (const Uuid & rhs) const { return GuidsAreEqual(*this, rhs); }
    inline bool operator == (int rhs)          const { ASSERT(!rhs); return GuidsAreEqual(*this, kNilGuid); }
    inline bool operator != (const Uuid & rhs) const { return !GuidsAreEqual(*this, rhs); }
    inline bool operator != (int rhs)          const { ASSERT(!rhs); return !GuidsAreEqual(*this, kNilGuid); }
};
#pragma pack(pop)

#endif