src/set.c: v0 for set_add()

1 files changed, 24 insertions, 0 deletions

diff --git a/src/set.c b/src/set.c
index 978115e..e2baaed 100644
--- a/src/set.c
+++ b/src/set.c
@@ -8,6 +8,7 @@
 #include <stdint.h>
 #include <string.h>
 
+#include <endiannessbs.h>
 #include <siphashbs.h>
 
 #include "hash.h"
@@ -85,3 +86,26 @@ set_free(const struct Set **const s) {
 	vector_free(&table);
 	freeit((void *)s);
 }
+
+int
+set_add(const struct Set *const s, const void *const value) {
+	int rc = -1;
+
+	uint8_t hash_bytes[HASH_OUTPUT_LENGTH];
+	hash(s->value_size, value, hash_bytes);
+
+	const uint64_t hash_value = endiannessbs_from_le64(hash_bytes);
+	const size_t idx = hash_value % vector_capacity(s->table);
+
+	const struct Tree *slot;
+	assert(vector_nth(s->table, idx, (void *)&slot) == 0);
+
+	if (tree_add(slot, value)) {
+		logerr("tree_add()");
+		goto out;
+	}
+
+	rc = 0;
+out:
+	return rc;
+}