yak-priv.h

#ifndef YAK_PRIV_H
#define YAK_PRIV_H

#include "yak.h"

#define CALLOC(ptr, len) ((ptr) = (__typeof__(ptr))calloc((len), sizeof(*(ptr))))
#define MALLOC(ptr, len) ((ptr) = (__typeof__(ptr))malloc((len) * sizeof(*(ptr))))
#define REALLOC(ptr, len) ((ptr) = (__typeof__(ptr))realloc((ptr), (len) * sizeof(*(ptr))))

static inline uint64_t yak_hash64(uint64_t key, uint64_t mask) // invertible integer hash function
{
	key = (~key + (key << 21)) & mask; // key = (key << 21) - key - 1;
	key = key ^ key >> 24;
	key = ((key + (key << 3)) + (key << 8)) & mask; // key * 265
	key = key ^ key >> 14;
	key = ((key + (key << 2)) + (key << 4)) & mask; // key * 21
	key = key ^ key >> 28;
	key = (key + (key << 31)) & mask;
	return key;
}

static inline uint64_t yak_hash64_64(uint64_t key)
{
	key = ~key + (key << 21);
	key = key ^ key >> 24;
	key = (key + (key << 3)) + (key << 8);
	key = key ^ key >> 14;
	key = (key + (key << 2)) + (key << 4);
	key = key ^ key >> 28;
	key = key + (key << 31);
	return key;
}

static inline uint64_t yak_hash_long(uint64_t x[4])
{
	int j = x[1] < x[3]? 0 : 1;
	return yak_hash64_64(x[j<<1|0]) + yak_hash64_64(x[j<<1|1]);
}

double yak_cputime(void);
void yak_reset_realtime(void);
double yak_realtime(void);
long yak_peakrss(void);

#endif