114 lines
2.7 KiB
C++
114 lines
2.7 KiB
C++
/*
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* Copyright 2003-2020 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 "Editor.hxx"
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#include "Remove.hxx"
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#include "db/PlaylistVector.hxx"
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#include "db/DatabaseLock.hxx"
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#include "db/plugins/simple/Directory.hxx"
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#include "db/plugins/simple/Song.hxx"
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#include <cassert>
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void
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DatabaseEditor::DeleteSong(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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const SongPtr song = dir.RemoveSong(del);
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/* temporary unlock, because update_remove_song() blocks */
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const ScopeDatabaseUnlock unlock;
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/* now take it out of the playlist (in the main_task) */
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remove.Remove(del->GetURI());
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/* the Song object will be freed here because its owning
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SongPtr lives on our stack, see above */
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}
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void
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DatabaseEditor::LockDeleteSong(Directory &parent, Song *song)
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{
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const ScopeDatabaseLock protect;
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DeleteSong(parent, song);
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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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inline void
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DatabaseEditor::ClearDirectory(Directory &directory)
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{
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directory.ForEachChildSafe([this](Directory &child){
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DeleteDirectory(&child);
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});
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directory.ForEachSongSafe([this, &directory](Song &song){
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assert(&song.parent == &directory);
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DeleteSong(directory, &song);
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});
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}
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void
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DatabaseEditor::DeleteDirectory(Directory *directory)
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{
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assert(directory->parent != nullptr);
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ClearDirectory(*directory);
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directory->Delete();
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}
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void
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DatabaseEditor::LockDeleteDirectory(Directory *directory)
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{
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const ScopeDatabaseLock protect;
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DeleteDirectory(directory);
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}
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bool
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DatabaseEditor::DeleteNameIn(Directory &parent, std::string_view name)
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{
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const ScopeDatabaseLock protect;
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bool modified = false;
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Directory *directory = parent.FindChild(name);
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if (directory != nullptr) {
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DeleteDirectory(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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DeleteSong(parent, song);
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modified = true;
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}
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parent.playlists.erase(name);
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return modified;
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}
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