int sp_catown(spcat *c, uint32_t idx, spv *v)
{
register sppage *p = c->i[idx];
/* equal or equal min or equal max */
switch (cmpkey(c, p, v->key, v->size)) {
case 0:
return 1;
case -1: /* key > page */
/* key > max */
if (idx == c->count-1)
return 1;
break;
case 1: /* key < page */
/* key < min */
if (idx == 0)
return 1;
break;
}
/* key > page && key < page+1.min */
if (c->cmp(v->key, v->size,
c->i[idx + 1]->min->key,
c->i[idx + 1]->min->size, c->cmparg) == -1)
return 1;
return 0;
}
void test_ahtable_sorted_iteration()
{
fprintf(stderr, "iterating in order through %zu keys ... \n", k);
ahtable_iter_t i;
ahtable_iter_begin(T, &i, true);
size_t count = 0;
value_t* u;
value_t v;
char* prev_key = malloc(m_high + 1);
size_t prev_len = 0;
const char *key = NULL;
size_t len = 0;
while (!ahtable_iter_finished(&i)) {
memcpy(prev_key, key, len);
prev_len = len;
++count;
key = ahtable_iter_key(&i, &len);
if (prev_key != NULL && cmpkey(prev_key, prev_len, key, len) > 0) {
fprintf(stderr, "[error] iteration is not correctly ordered.\n");
}
u = ahtable_iter_val(&i);
v = str_map_get(M, key, len);
if (*u != v) {
if (v == 0) {
fprintf(stderr, "[error] incorrect iteration (%lu, %lu)\n", *u, v);
}
else {
fprintf(stderr, "[error] incorrect iteration tally (%lu, %lu)\n", *u, v);
}
}
// this way we will see an error if the same key is iterated through
// twice
str_map_set(M, key, len, 0);
ahtable_iter_next(&i);
}
ahtable_iter_free(&i);
free(prev_key);
fprintf(stderr, "done.\n");
}
/* Search |tree| for an item matching |item|, and return it if found.
Otherwise return |NULL|. */
struct AVLNode *
AVL_Find(struct AVLNode *p, const void *item, AVLKEYCOMP cmpkey)
{
int dir;
for (; p != NULL; p = p->Link[dir]) {
int cmp = cmpkey(item, p);
if (cmp == 0)
break;
dir = cmp > 0;
}
return (struct AVLNode *)p;
}
sppage*
sp_catfind(spcat *c, char *rkey, int size, uint32_t *index)
{
register int min = 0;
register int max = c->count - 1;
while (max >= min) {
register int mid = min + ((max - min) >> 1);
switch (cmpkey(c, c->i[mid], rkey, size)) {
case -1: min = mid + 1;
continue;
case 1: max = mid - 1;
continue;
default: *index = mid;
return c->i[mid];
}
}
*index = min;
return NULL;
}
/* Find node <= item */
struct AVLNode *
AVL_FindPrev(struct AVLNode *p, const void *item, AVLKEYCOMP cmpkey)
{
int dir;
struct AVLNode *l;
if (p == NULL)
return p;
for (; p != NULL; p = p->Link[dir]) {
int cmp = cmpkey(item, p);
if (cmp == 0)
return p;
l = p;
dir = cmp > 0;
}
if (dir == 0)
return AVL_Prev(l);
else
return l;
}
void test_hattrie_sorted_iteration()
{
fprintf(stderr, "iterating in order through %zu keys ... \n", k);
hattrie_iter_t* i = hattrie_iter_begin(T, true);
size_t count = 0;
value_t* u;
value_t v;
char* key_copy = malloc(m_high + 1);
char* prev_key = malloc(m_high + 1);
memset(prev_key, 0, m_high + 1);
size_t prev_len = 0;
const char *key = NULL;
size_t len = 0;
while (!hattrie_iter_finished(i)) {
memcpy(prev_key, key_copy, len);
prev_key[len] = '\0';
prev_len = len;
++count;
key = hattrie_iter_key(i, &len);
/* memory for key may be changed on iter, copy it */
strncpy(key_copy, key, len);
if (prev_key != NULL && cmpkey(prev_key, prev_len, key, len) > 0) {
fprintf(stderr, "[error] iteration is not correctly ordered.\n");
}
u = hattrie_iter_val(i);
v = str_map_get(M, key, len);
if (*u != v) {
if (v == 0) {
fprintf(stderr, "[error] incorrect iteration (%lu, %lu)\n", *u, v);
}
else {
fprintf(stderr, "[error] incorrect iteration tally (%lu, %lu)\n", *u, v);
}
}
// this way we will see an error if the same key is iterated through
// twice
str_map_set(M, key, len, 0);
hattrie_iter_next(i);
}
if (count != M->m) {
fprintf(stderr, "[error] iterated through %zu element, expected %zu\n",
count, M->m);
}
hattrie_iter_free(i);
free(prev_key);
free(key_copy);
fprintf(stderr, "done.\n");
}