#ifndef PING_STATS_H
#define PING_STATS_H

#include <stdint.h>
#include <stddef.h>

typedef struct s_ping_stats {
	int64_t	min_ns;
	int64_t	max_ns;
	int64_t	sum_ns;
	int64_t	sum_sq_ns; /* sum of (rtt_ns / 1000)^2 in us^2, to avoid overflow */
	size_t	count;
} t_ping_stats;

void	ping_stats_init(t_ping_stats *s);
void	ping_stats_update(t_ping_stats *s, int64_t rtt_ns);
void	ping_stats_get(const t_ping_stats *s,
			double *min_ms, double *max_ms, double *avg_ms, double *mdev_ms);

#endif