+++ /dev/null
-/*
- $Id: ds.c,v 1.2 2005/01/12 11:34:52 rocky Exp $
-
- Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
- Copyright (C) 2005 Rocky Bernstein <rocky@panix.com>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-*/
-\f
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-
-#include <cdio/ds.h>
-#include <cdio/util.h>
-#include <cdio/types.h>
-#include "cdio_assert.h"
-
-static const char _rcsid[] = "$Id: ds.c,v 1.2 2005/01/12 11:34:52 rocky Exp $";
-
-struct _CdioList
-{
- unsigned length;
-
- CdioListNode_t *begin;
- CdioListNode_t *end;
-};
-
-struct _CdioListNode
-{
- CdioList_t *list;
-
- CdioListNode_t *next;
-
- void *data;
-};
-
-/* impl */
-
-CdioList_t *
-_cdio_list_new (void)
-{
- CdioList_t *p_new_obj = _cdio_malloc (sizeof (CdioList_t));
-
- return p_new_obj;
-}
-
-void
-_cdio_list_free (CdioList_t *p_list, int free_data)
-{
- while (_cdio_list_length (p_list))
- _cdio_list_node_free (_cdio_list_begin (p_list), free_data);
-
- free (p_list);
-}
-
-unsigned
-_cdio_list_length (const CdioList_t *p_list)
-{
- cdio_assert (p_list != NULL);
-
- return p_list->length;
-}
-
-void
-_cdio_list_prepend (CdioList_t *p_list, void *p_data)
-{
- CdioListNode_t *p_new_node;
-
- cdio_assert (p_list != NULL);
-
- p_new_node = _cdio_malloc (sizeof (CdioListNode_t));
-
- p_new_node->list = p_list;
- p_new_node->next = p_list->begin;
- p_new_node->data = p_data;
-
- p_list->begin = p_new_node;
- if (p_list->length == 0)
- p_list->end = p_new_node;
-
- p_list->length++;
-}
-
-void
-_cdio_list_append (CdioList_t *p_list, void *p_data)
-{
- cdio_assert (p_list != NULL);
-
- if (p_list->length == 0)
- {
- _cdio_list_prepend (p_list, p_data);
- }
- else
- {
- CdioListNode_t *p_new_node = _cdio_malloc (sizeof (CdioListNode_t));
-
- p_new_node->list = p_list;
- p_new_node->next = NULL;
- p_new_node->data = p_data;
-
- p_list->end->next = p_new_node;
- p_list->end = p_new_node;
-
- p_list->length++;
- }
-}
-
-void
-_cdio_list_foreach (CdioList_t *p_list, _cdio_list_iterfunc_t func,
- void *p_user_data)
-{
- CdioListNode_t *node;
-
- cdio_assert (p_list != NULL);
- cdio_assert (func != 0);
-
- for (node = _cdio_list_begin (p_list);
- node != NULL;
- node = _cdio_list_node_next (node))
- func (_cdio_list_node_data (node), p_user_data);
-}
-
-CdioListNode_t *
-_cdio_list_find (CdioList_t *p_list, _cdio_list_iterfunc_t cmp_func,
- void *p_user_data)
-{
- CdioListNode_t *p_node;
-
- cdio_assert (p_list != NULL);
- cdio_assert (cmp_func != 0);
-
- for (p_node = _cdio_list_begin (p_list);
- p_node != NULL;
- p_node = _cdio_list_node_next (p_node))
- if (cmp_func (_cdio_list_node_data (p_node), p_user_data))
- break;
-
- return p_node;
-}
-
-CdioListNode_t *
-_cdio_list_begin (const CdioList_t *p_list)
-{
- cdio_assert (p_list != NULL);
-
- return p_list->begin;
-}
-
-CdioListNode_t *
-_cdio_list_end (CdioList_t *p_list)
-{
- cdio_assert (p_list != NULL);
-
- return p_list->end;
-}
-
-CdioListNode_t *
-_cdio_list_node_next (CdioListNode_t *p_node)
-{
- if (p_node)
- return p_node->next;
-
- return NULL;
-}
-
-void
-_cdio_list_node_free (CdioListNode_t *p_node, int free_data)
-{
- CdioList_t *p_list;
- CdioListNode_t *prev_node;
-
- cdio_assert (p_node != NULL);
-
- p_list = p_node->list;
-
- cdio_assert (_cdio_list_length (p_list) > 0);
-
- if (free_data)
- free (_cdio_list_node_data (p_node));
-
- if (_cdio_list_length (p_list) == 1)
- {
- cdio_assert (p_list->begin == p_list->end);
-
- p_list->end = p_list->begin = NULL;
- p_list->length = 0;
- free (p_node);
- return;
- }
-
- cdio_assert (p_list->begin != p_list->end);
-
- if (p_list->begin == p_node)
- {
- p_list->begin = p_node->next;
- free (p_node);
- p_list->length--;
- return;
- }
-
- for (prev_node = p_list->begin; prev_node->next; prev_node = prev_node->next)
- if (prev_node->next == p_node)
- break;
-
- cdio_assert (prev_node->next != NULL);
-
- if (p_list->end == p_node)
- p_list->end = prev_node;
-
- prev_node->next = p_node->next;
-
- p_list->length--;
-
- free (p_node);
-}
-
-void *
-_cdio_list_node_data (CdioListNode_t *p_node)
-{
- if (p_node)
- return p_node->data;
-
- return NULL;
-}
-
-/* eof */
-
-\f
-/*
- * Local variables:
- * c-file-style: "gnu"
- * tab-width: 8
- * indent-tabs-mode: nil
- * End:
- */
-
projects / vuplus_xbmc / blobdiff