57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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#include "Playlist.hxx"
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#include "db/Interface.hxx"
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#include "song/LightSong.hxx"
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#include "song/DetachedSong.hxx"
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static bool
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UpdatePlaylistSong(const Database &db, DetachedSong &song)
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{
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if (!song.IsInDatabase() || !song.IsFile())
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/* only update Songs instances that are "detached"
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from the Database */
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return false;
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const LightSong *original;
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try {
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original = db.GetSong(song.GetURI());
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} catch (...) {
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/* not found - shouldn't happen, because the update
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thread should ensure that all stale Song instances
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have been purged */
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return false;
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}
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assert(original != nullptr);
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if (original->mtime == song.GetLastModified()) {
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/* not modified */
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db.ReturnSong(original);
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return false;
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}
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song.SetLastModified(original->mtime);
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song.SetTag(original->tag);
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db.ReturnSong(original);
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return true;
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}
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void
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playlist::DatabaseModified(const Database &db)
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{
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bool modified = false;
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for (unsigned i = 0, n = queue.GetLength(); i != n; ++i) {
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if (UpdatePlaylistSong(db, queue.Get(i))) {
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queue.ModifyAtPosition(i);
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modified = true;
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}
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}
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if (modified)
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OnModified();
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}
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