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implemented more flexible iterator hook API

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kernel interface handles interface changes and updates address list
This commit is contained in:
Martin Willi
2007-06-15 13:23:18 +00:00
parent 02b3ec0a10
commit 08a8f4496f
5 changed files with 439 additions and 255 deletions
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src/libstrongswan/utils/linked_list.c
+31 -28
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@@ -151,10 +151,10 @@ static int get_list_count(private_iterator_t *this)
/**
* default iterator hook which does nothing
*/
static bool iterator_hook(void *param, void *in, void **out)
static hook_result_t iterator_hook(void *param, void *in, void **out)
{
*out = in;
return TRUE;
return HOOK_NEXT;
}
/**
@@ -180,40 +180,43 @@ static void set_iterator_hook(private_iterator_t *this, iterator_hook_t *hook,
*/
static bool iterate(private_iterator_t *this, void** value)
{
if (this->list->count == 0)
while (TRUE)
{
return FALSE;
}
if (this->current == NULL)
{
this->current = (this->forward) ? this->list->first : this->list->last;
if (!this->hook(this->hook_param, this->current->value, value))
if (this->forward)
{
return iterate(this, value);
this->current = this->current ? this->current->next : this->list->first;
}
return TRUE;
}
if (this->forward)
{
if (this->current->next == NULL)
else
{
this->current = this->current ? this->current->previous : this->list->last;
}
if (this->current == NULL)
{
return FALSE;
}
this->current = this->current->next;
if (!this->hook(this->hook_param, this->current->value, value))
switch (this->hook(this->hook_param, this->current->value, value))
{
return iterate(this, value);
case HOOK_AGAIN:
/* rewind */
if (this->forward)
{
this->current = this->current->previous;
}
else
{
this->current = this->current->next;
}
break;
case HOOK_NEXT:
/* normal iteration */
break;
case HOOK_SKIP:
/* advance */
continue;
}
return TRUE;
}
if (this->current->previous == NULL)
{
return FALSE;
}
this->current = this->current->previous;
if (!this->hook(this->hook_param, this->current->value, value))
{
return iterate(this, value);
break;
}
return TRUE;
}