/**
* gum_list_insert:
* @list: a pointer to a #GumList
* @data: the data for the new element
* @position: the position to insert the element. If this is
* negative, or is larger than the number of elements in the
* list, the new element is added on to the end of the list.
*
* Inserts a new element into the list at the given position.
*
* Returns: the new start of the #GumList
*/
GumList*
gum_list_insert (GumList *list,
gpointer data,
gint position)
{
GumList *new_list;
GumList *tmp_list;
if (position < 0)
return gum_list_append (list, data);
else if (position == 0)
return gum_list_prepend (list, data);
tmp_list = gum_list_nth (list, position);
if (!tmp_list)
return gum_list_append (list, data);
new_list = _gum_list_alloc ();
new_list->data = data;
new_list->prev = tmp_list->prev;
if (tmp_list->prev)
tmp_list->prev->next = new_list;
new_list->next = tmp_list;
tmp_list->prev = new_list;
if (tmp_list == list)
return new_list;
else
return list;
}
GumCodeSlice *
gum_code_allocator_new_slice_near (GumCodeAllocator * self,
gpointer address)
{
GumList * walk;
GumCodePage * cp;
GumCodeSlice * slice;
for (walk = self->pages; walk != NULL; walk = walk->next)
{
GumCodePage * page = (GumCodePage *) walk->data;
if (gum_code_page_is_near (page, address))
{
guint slice_idx;
for (slice_idx = 0; slice_idx != self->slices_per_page; slice_idx++)
{
slice = &page->slice[slice_idx];
if (gum_code_slice_is_free (slice))
{
if (!gum_query_is_rwx_supported ())
gum_mprotect (page, self->page_size, GUM_PAGE_RW);
gum_code_slice_mark_taken (slice);
return slice;
}
}
}
}
cp = gum_code_allocator_new_page_near (self, address);
self->pages = gum_list_prepend (self->pages, cp);
slice = &cp->slice[0];
gum_code_slice_mark_taken (slice);
return slice;
}
