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Take and remove functions based on iterator.

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This commit is contained in:
Vreixo Formoso
2007-12-02 17:17:04 +01:00
parent baa6238579
commit 5fa2490a48
3 changed files with 94 additions and 18 deletions
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41
src/node.c
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@ -351,3 +351,44 @@ int iso_node_remove(IsoNode *node)
}
return ret;
}
/* TODO #00005 optimize iso_dir_iter_take */
int iso_dir_iter_take(IsoDirIter *iter)
{
IsoNode *pos;
if (iter == NULL) {
return ISO_NULL_POINTER;
}
pos = iter->dir->children;
if (iter->pos == pos) {
return ISO_ERROR;
}
while (pos != NULL && pos->next == iter->pos) {
pos = pos->next;
}
if (pos == NULL) {
return ISO_ERROR;
}
return iso_node_take(pos);
}
int iso_dir_iter_remove(IsoDirIter *iter)
{
IsoNode *pos;
if (iter == NULL) {
return ISO_NULL_POINTER;
}
pos = iter->dir->children;
if (iter->pos == pos) {
return ISO_ERROR;
}
while (pos != NULL && pos->next == iter->pos) {
pos = pos->next;
}
if (pos == NULL) {
return ISO_ERROR;
}
return iso_node_remove(pos);
}