27 lines
609 B
C
27 lines
609 B
C
#include "uid.h"
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#include "rand.h"
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#include "sys.h"
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/* Returns a uid generated from the system's random number generator */
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struct uid uid_true_rand(void)
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{
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struct uid res = ZI;
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sys_true_rand(STRING_FROM_STRUCT(&res));
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return res;
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}
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/* Combines 2 uids into a new uid */
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struct uid uid_combine(struct uid a, struct uid b)
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{
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struct uid res;
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res.hi = (a.hi * 3) + b.hi;
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res.lo = (a.lo * 3) + b.lo;
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res.hi += res.lo;
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res.lo += res.hi;
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res.hi = rand_u64_from_seed(res.hi);
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res.lo = rand_u64_from_seed(res.lo);
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res.hi += res.lo;
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res.lo += res.hi;
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return res;
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}
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