/* * Copyright (C) 2003-2013 The Music Player Daemon Project * http://www.musicpd.org * * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "config.h" /* must be first for large file support */ #include "UpdateContainer.hxx" #include "UpdateInternal.hxx" #include "UpdateDatabase.hxx" #include "DatabaseLock.hxx" #include "Directory.hxx" #include "song.h" #include "decoder_plugin.h" #include "Mapper.hxx" #include "Path.hxx" extern "C" { #include "tag_handler.h" } #include /** * Create the specified directory object if it does not exist already * or if the #stat object indicates that it has been modified since * the last update. Returns NULL when it exists already and is * unmodified. * * The caller must lock the database. */ static Directory * make_directory_if_modified(Directory *parent, const char *name, const struct stat *st) { Directory *directory = parent->FindChild(name); // directory exists already if (directory != NULL) { if (directory->mtime == st->st_mtime && !walk_discard) { /* not modified */ db_unlock(); return NULL; } delete_directory(directory); modified = true; } directory = parent->MakeChild(name); directory->mtime = st->st_mtime; return directory; } bool update_container_file(Directory *directory, const char *name, const struct stat *st, const struct decoder_plugin *plugin) { if (plugin->container_scan == NULL) return false; db_lock(); Directory *contdir = make_directory_if_modified(directory, name, st); if (contdir == NULL) { /* not modified */ db_unlock(); return true; } contdir->device = DEVICE_CONTAINER; db_unlock(); const Path pathname = map_directory_child_fs(directory, name); char *vtrack; unsigned int tnum = 0; while ((vtrack = plugin->container_scan(pathname.c_str(), ++tnum)) != NULL) { struct song *song = song_file_new(vtrack, contdir); // shouldn't be necessary but it's there.. song->mtime = st->st_mtime; const Path child_path_fs = map_directory_child_fs(contdir, vtrack); song->tag = tag_new(); decoder_plugin_scan_file(plugin, child_path_fs.c_str(), &add_tag_handler, song->tag); db_lock(); contdir->AddSong(song); db_unlock(); modified = true; g_message("added %s/%s", directory->GetPath(), vtrack); g_free(vtrack); } if (tnum == 1) { db_lock(); delete_directory(contdir); db_unlock(); return false; } else return true; }