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HT_NEXT invalidates the last iterator; fix rmv-related segfault.

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svn:r5458
This commit is contained in:
Nick Mathewson 2005-11-26 00:42:25 +00:00
parent fe221f3dff
commit 72cb64406a
2 changed files with 16 additions and 13 deletions
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26
src/common/container.c
View File

@ -756,26 +756,28 @@ digestmap_iter_next(digestmap_t *map, digestmap_iter_t *iter)
strmap_iter_t *
strmap_iter_next_rmv(strmap_t *map, strmap_iter_t *iter)
{
strmap_iter_t *next;
strmap_entry_t *rmv;
tor_assert(map);
tor_assert(iter);
next = HT_NEXT_RMV(strmap_tree, &map->head, iter);
if (*iter) {
tor_free((*iter)->key);
tor_free(*iter);
}
return next;
tor_assert(*iter);
rmv = *iter;
iter = HT_NEXT_RMV(strmap_tree, &map->head, iter);
tor_free(rmv->key);
tor_free(rmv);
return iter;
}
digestmap_iter_t *
digestmap_iter_next_rmv(digestmap_t *map, digestmap_iter_t *iter)
{
digestmap_iter_t *next;
digestmap_entry_t *rmv;
tor_assert(map);
tor_assert(iter);
next = HT_NEXT_RMV(digestmap_tree, &map->head, iter);
tor_free(*iter);
return next;
tor_assert(*iter);
rmv = *iter;
iter = HT_NEXT_RMV(digestmap_tree, &map->head, iter);
tor_free(rmv);
return iter;
}
/** Set *keyp and *valp to the current entry pointed to by iter.
@ -784,6 +786,7 @@ void
strmap_iter_get(strmap_iter_t *iter, const char **keyp, void **valp)
{
tor_assert(iter);
tor_assert(*iter);
tor_assert(keyp);
tor_assert(valp);
*keyp = (*iter)->key;
@ -794,6 +797,7 @@ void
digestmap_iter_get(digestmap_iter_t *iter, const char **keyp, void **valp)
{
tor_assert(iter);
tor_assert(*iter);
tor_assert(keyp);
tor_assert(valp);
*keyp = (*iter)->key;

3
src/common/ht.h
View File

@ -215,7 +215,7 @@ ht_string_hash(const char *s)
static __inline struct type ** \
name##_HT_START(struct name *head) \
{ \
unsigned b = 0; \
unsigned b = 0; \
while (b < head->hth_table_length) { \
if (head->hth_table[b]) \
return &head->hth_table[b]; \
@ -262,7 +262,6 @@ ht_string_hash(const char *s)
} \
}
#if 0
/* Helpers for an iterator type that saves some mod operations at the expense
* of many branches. Not worth it, it seems. */