105 lines
2.4 KiB
C++
105 lines
2.4 KiB
C++
/*
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* Copyright (C) 2003-2014 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h" /* must be first for large file support */
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#include "UpdateDatabase.hxx"
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#include "UpdateRemove.hxx"
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#include "PlaylistVector.hxx"
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#include "Directory.hxx"
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#include "Song.hxx"
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#include "DatabaseLock.hxx"
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#include <assert.h>
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#include <stddef.h>
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void
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delete_song(Directory &dir, Song *del)
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{
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assert(del->parent == &dir);
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/* first, prevent traversers in main task from getting this */
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dir.RemoveSong(del);
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db_unlock(); /* temporary unlock, because update_remove_song() blocks */
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/* now take it out of the playlist (in the main_task) */
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update_remove_song(del);
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/* finally, all possible references gone, free it */
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del->Free();
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db_lock();
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}
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/**
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* Recursively remove all sub directories and songs from a directory,
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* leaving an empty directory.
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*
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* Caller must lock the #db_mutex.
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*/
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static void
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clear_directory(Directory &directory)
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{
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Directory *child, *n;
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directory_for_each_child_safe(child, n, directory)
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delete_directory(child);
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Song *song, *ns;
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directory_for_each_song_safe(song, ns, directory) {
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assert(song->parent == &directory);
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delete_song(directory, song);
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}
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}
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void
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delete_directory(Directory *directory)
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{
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assert(directory->parent != nullptr);
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clear_directory(*directory);
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directory->Delete();
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}
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bool
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delete_name_in(Directory &parent, const char *name)
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{
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bool modified = false;
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db_lock();
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Directory *directory = parent.FindChild(name);
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if (directory != nullptr) {
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delete_directory(directory);
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modified = true;
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}
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Song *song = parent.FindSong(name);
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if (song != nullptr) {
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delete_song(parent, song);
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modified = true;
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}
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parent.playlists.erase(name);
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db_unlock();
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return modified;
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}
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