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cleanup: better expressing passing key arg to _hash

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This commit is contained in:
Zdenek Kabelac 2020-08-29 22:37:17 +02:00
parent f0c281f9a9
commit 0bd9eb80c9
1 changed files with 5 additions and 4 deletions
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9
libdm/datastruct/hash.c
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@ -57,26 +57,27 @@ static unsigned char _nums[] = {
209
};
static struct dm_hash_node *_create_node(const char *str, unsigned len)
static struct dm_hash_node *_create_node(const void *key, unsigned len)
{
struct dm_hash_node *n = dm_malloc(sizeof(*n) + len);
if (n) {
memcpy(n->key, str, len);
memcpy(n->key, key, len);
n->keylen = len;
}
return n;
}
static unsigned long _hash(const char *str, unsigned len)
static unsigned long _hash(const void *key, unsigned len)
{
const unsigned char *str = key;
unsigned long h = 0, g;
unsigned i;
for (i = 0; i < len; i++) {
h <<= 4;
h += _nums[(unsigned char) *str++];
h += _nums[*str++];
g = h & ((unsigned long) 0xf << 16u);
if (g) {
h ^= g >> 16u;