zipf/pareto/gauss: add option to disable hashing
[fio.git] / lib / gauss.h
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1#ifndef FIO_GAUSS_H
2#define FIO_GAUSS_H
3
4#include <inttypes.h>
5#include "rand.h"
6
7struct gauss_state {
8 struct frand_state r;
9 uint64_t nranges;
10 unsigned int stddev;
8348daf9 11 bool disable_hash;
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12};
13
f88cd222 14void gauss_init(struct gauss_state *gs, unsigned long nranges, double dev,
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15 unsigned int seed);
16unsigned long long gauss_next(struct gauss_state *gs);
8348daf9 17void gauss_disable_hash(struct gauss_state *gs);
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18
19#endif