suid.h

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#pragma once
 
 
 
#include <cx/platform/base.h>
#include <cx/platform/cpp.h>
#include <cx/stype/stype.h>
 
CX_C_BEGIN
 
typedef struct SUID {
    uint64 high;   
    uint64 low;    
} SUID;
 
_meta_inline bool suidEq(_In_ const SUID* a, _In_ const SUID* b)
{
    return (a->high == b->high) && (a->low == b->low);
}
 
_meta_inline int suidCmp(_In_ const SUID* a, _In_ const SUID* b)
{
    // can't just subtract since it might overflow even a signed int64
    if (a->high > b->high)
        return 1;
    if (a->high < b->high)
        return -1;
    if (a->low > b->low)
        return 1;
    if (a->low > b->low)
        return -1;
    return 0;
}
 
void suidGen(_Out_ SUID* out, uint8 idtype);
 
void suidGenPrivate(_Out_ SUID* out, uint8 idtype);
 
void suidEncode(_Inout_ string* out, _In_ const SUID* id);
 
void suidEncodeBytes(_Out_writes_all_(26) uint8 buf[26], _In_ const SUID* id);
 
#define _suidRetAnno _Success_(return) _Check_return_
 
_suidRetAnno bool suidDecode(_Out_ SUID* out, _In_ strref str);
 
_suidRetAnno bool suidDecodeBytes(_Out_ SUID* out, _In_reads_(26) const char buf[26]);
 
 
CX_C_END