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Diffstat (limited to '')
-rw-r--r-- | src/UpdateContainer.cxx | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/UpdateContainer.cxx b/src/UpdateContainer.cxx new file mode 100644 index 000000000..27ee89bae --- /dev/null +++ b/src/UpdateContainer.cxx @@ -0,0 +1,121 @@ +/* + * 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 "fs/Path.hxx" + +extern "C" { +#include "tag_handler.h" +} + +#include <glib.h> + +/** + * 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 */ + 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; +} |