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Replace for loops with memcpy

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This commit is contained in:
Igor Putovny 2024-05-09 18:00:44 +02:00
parent c5ff98e57b
commit 7ad8a4cfe1
1 changed files with 11 additions and 22 deletions
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33
proto/aggregator/aggregator.c
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@ -398,22 +398,16 @@ compute_buckets_intersection(struct trie_node *node, const struct trie_node *lef
assert(right != NULL);
assert(node != NULL);
struct aggregator_bucket *fst[64] = { 0 };
struct aggregator_bucket *snd[64] = { 0 };
struct aggregator_bucket *fst[MAX_POTENTIAL_BUCKETS_COUNT] = { 0 };
struct aggregator_bucket *snd[MAX_POTENTIAL_BUCKETS_COUNT] = { 0 };
int fst_count = 0;
int snd_count = 0;
memcpy(fst, left->potential_buckets, sizeof(left->potential_buckets[0]) * left->potential_buckets_count);
memcpy(snd, right->potential_buckets, sizeof(right->potential_buckets[0]) * right->potential_buckets_count);
for (int i = 0; i < left->potential_buckets_count; i++)
fst[fst_count++] = left->potential_buckets[i];
qsort(fst, left->potential_buckets_count, sizeof(fst[0]), aggregator_bucket_compare_wrapper);
qsort(snd, right->potential_buckets_count, sizeof(snd[0]), aggregator_bucket_compare_wrapper);
for (int i = 0; i < right->potential_buckets_count; i++)
snd[snd_count++] = right->potential_buckets[i];
qsort(fst, fst_count, sizeof(struct aggregator_bucket *), aggregator_bucket_compare_wrapper);
qsort(snd, snd_count, sizeof(struct aggregator_bucket *), aggregator_bucket_compare_wrapper);
struct aggregator_bucket *output[64] = { 0 };
struct aggregator_bucket *output[MAX_POTENTIAL_BUCKETS_COUNT * 2] = { 0 };
int output_count = 0;
int i = 0;
@ -421,11 +415,11 @@ compute_buckets_intersection(struct trie_node *node, const struct trie_node *lef
while (i < left->potential_buckets_count && j < right->potential_buckets_count)
{
int res = aggregator_bucket_compare(left->potential_buckets[i], right->potential_buckets[j]);
int res = aggregator_bucket_compare(fst[i], snd[j]);
if (res == 0)
{
output[output_count++] = left->potential_buckets[i];
output[output_count++] = fst[i];
i++;
j++;
}
@ -446,13 +440,8 @@ compute_buckets_intersection(struct trie_node *node, const struct trie_node *lef
for (int l = k + 1; l < output_count; l++)
assert(output[k] != output[l]);
for (int k = 0; k < output_count; k++)
{
if (node->potential_buckets_count >= MAX_POTENTIAL_BUCKETS_COUNT)
break;
node->potential_buckets[node->potential_buckets_count++] = output[k];
}
node->potential_buckets_count = output_count < MAX_POTENTIAL_BUCKETS_COUNT ? output_count : MAX_POTENTIAL_BUCKETS_COUNT;
memcpy(node->potential_buckets, output, sizeof(node->potential_buckets[0]) * node->potential_buckets_count);
}
/*