Exemple #1
0
/* Provide an API suitable for smhasher */
void PMurHash32_test(const void *key, int len, uint32_t seed, void *out)
{
  uint32_t h1=seed, carry=0;
  const uint8_t *ptr = (uint8_t*)key;
  const uint8_t *end = ptr + len;

  PMurHash32_Process(&h1, &carry, ptr, (int)(end-ptr));
  h1 = PMurHash32_Result(h1, carry, len);
  *(uint32_t*)out = h1;
}
Exemple #2
0
/* Provide an API suitable for smhasher */
void PMurHash32_test(const void *key, int len, uint32_t seed, void *out)
{
  uint32_t h1=seed, carry=0;
  const uint8_t *ptr = (uint8_t*)key;
  const uint8_t *end = ptr + len;

#if 0 /* Exercise the progressive processing */
  while(ptr < end) {
    //const uint8_t *mid = ptr + rand()%(end-ptr)+1;
    const uint8_t *mid = ptr + (rand()&0xF);
    mid = mid<end?mid:end;
    PMurHash32_Process(&h1, &carry, ptr, mid-ptr);
    ptr = mid;
  }
#else
  PMurHash32_Process(&h1, &carry, ptr, (int)(end-ptr));
#endif
  h1 = PMurHash32_Result(h1, carry, len);
  *(uint32_t*)out = h1;
}
Exemple #3
0
/* Murmur3A compatable all-at-once */
uint32_t PMurHash32(uint32_t seed, const void *key, int len)
{
  uint32_t h1=seed, carry=0;
  PMurHash32_Process(&h1, &carry, key, len);
  return PMurHash32_Result(h1, carry, len);
}