src/filelist.c

   1 /*
   2  * (c) 2004 by Kalle Wallin <kaw@linux.se>
   3  * (c) 2008 Max Kellermann <max@duempel.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  *
  18  */
  19
  20 #include "filelist.h"
  21 #include "libmpdclient.h"
  22
  23 #include <string.h>
  24 #include <assert.h>
  25
  26 struct filelist *
  27 filelist_new(const char *path)
  28 {
  29         struct filelist *filelist = g_malloc(sizeof(*filelist));
  30
  31         filelist->path = g_strdup(path);
  32         filelist->length = 0;
  33         filelist->updated = FALSE;
  34         filelist->list = NULL;
  35
  36         return filelist;
  37 }
  38
  39 void
  40 filelist_free(struct filelist *filelist)
  41 {
  42         GList *list = g_list_first(filelist->list);
  43
  44         if (list == NULL)
  45                 return;
  46
  47         while (list != NULL) {
  48                 filelist_entry_t *entry = list->data;
  49
  50                 if (entry->entity)
  51                         mpd_freeInfoEntity(entry->entity);
  52
  53                 g_free(entry);
  54                 list = list->next;
  55         }
  56
  57         g_list_free(filelist->list);
  58         g_free(filelist->path);
  59         g_free(filelist);
  60 }
  61
  62 struct filelist_entry *
  63 filelist_append(struct filelist *filelist, struct mpd_InfoEntity *entity)
  64 {
  65         struct filelist_entry *entry = g_malloc(sizeof(*entry));
  66
  67         entry->flags = 0;
  68         entry->entity = entity;
  69
  70         filelist->list = g_list_append(filelist->list, entry);
  71         filelist->length++;
  72
  73         return entry;
  74 }
  75
  76 struct filelist_entry *
  77 filelist_prepend(struct filelist *filelist, struct mpd_InfoEntity *entity)
  78 {
  79         struct filelist_entry *entry = g_malloc(sizeof(*entry));
  80
  81         entry->flags = 0;
  82         entry->entity = entity;
  83
  84         filelist->list = g_list_insert(filelist->list, entry, 0);
  85         filelist->length++;
  86
  87         return entry;
  88 }
  89
  90 void
  91 filelist_move(struct filelist *filelist, struct filelist *from)
  92 {
  93         filelist->list = g_list_concat(filelist->list, from->list);
  94         filelist->length += from->length;
  95         from->list = NULL;
  96         from->length = 0;
  97 }
  98
  99 void
 100 filelist_sort(struct filelist *filelist, GCompareFunc compare_func)
 101 {
 102         filelist->list = g_list_sort(filelist->list, compare_func);
 103 }
 104
 105 struct filelist_entry *
 106 filelist_find_song(struct filelist *fl, const struct mpd_song *song)
 107 {
 108         GList *list = g_list_first(fl->list);
 109
 110         assert(song != NULL);
 111
 112         while (list != NULL) {
 113                 filelist_entry_t *entry = list->data;
 114                 mpd_InfoEntity *entity  = entry->entity;
 115
 116                 if (entity && entity->type == MPD_INFO_ENTITY_TYPE_SONG) {
 117                         struct mpd_song *song2 = entity->info.song;
 118
 119                         if (strcmp(song->file, song2->file) == 0)
 120                                 return entry;
 121                 }
 122
 123                 list = list->next;
 124         }
 125
 126         return NULL;
 127 }