[fio.git] / lib / gauss.h

#ifndef FIO_GAUSS_H
#define FIO_GAUSS_H

#include <inttypes.h>
#include "rand.h"

struct gauss_state {
	struct frand_state r;
	uint64_t nranges;
	unsigned int stddev;
	unsigned int rand_off;
	bool disable_hash;
};

void gauss_init(struct gauss_state *gs, unsigned long nranges, double dev,
		double center, unsigned int seed);
unsigned long long gauss_next(struct gauss_state *gs);
void gauss_disable_hash(struct gauss_state *gs);

#endif
Commit	Line	Data
	1	#ifndef FIO_GAUSS_H
	2	#define FIO_GAUSS_H
	3
	4	#include <inttypes.h>
	5	#include "rand.h"
	6
	7	struct gauss_state {
	8	struct frand_state r;
	9	uint64_t nranges;
	10	unsigned int stddev;
	11	unsigned int rand_off;
	12	bool disable_hash;
	13	};
	14
	15	void gauss_init(struct gauss_state *gs, unsigned long nranges, double dev,
	16	double center, unsigned int seed);
	17	unsigned long long gauss_next(struct gauss_state *gs);
	18	void gauss_disable_hash(struct gauss_state *gs);
	19
	20	#endif