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invert distance counting

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yrutschle 2022-04-08 21:09:45 +02:00
parent 63b503e27f
commit 33d73dd514
2 changed files with 5 additions and 5 deletions
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10
hash.c
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@ -130,13 +130,13 @@ hash_item hash_find(hash* h, hash_item item)
/* Returns DIB: distance to initial bucket */ /* Returns DIB: distance to initial bucket */
static int distance(int actual_index, hash* h, hash_item item) static int distance(int current_index, hash* h, hash_item item)
{ {
int wanted_index = hash_make_key(h, item); int wanted_index = hash_make_key(h, item);
if (wanted_index <= actual_index) if (wanted_index <= current_index)
return wanted_index - actual_index; return current_index - wanted_index;
else else
return wanted_index + hash_size - actual_index; return current_index - wanted_index + hash_size;
} }
@ -153,7 +153,7 @@ int hash_insert(hash* h, hash_item new)
hash_item curr_item = gap_get(hash, index); hash_item curr_item = gap_get(hash, index);
while (curr_item) { while (curr_item) {
if (distance(index, h, curr_item) > distance(index, h, new)) { if (distance(index, h, curr_item) < distance(index, h, new)) {
gap_set(h->data, index, new); gap_set(h->data, index, new);
#if DEBUG #if DEBUG
fprintf(stderr, "intermediate insert [%s] at %d\n", &new->client_addr, index); fprintf(stderr, "intermediate insert [%s] at %d\n", &new->client_addr, index);

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hashtest/htest
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