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db/simple/ExportedSong: new class

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This commit is contained in:
Max Kellermann
2021-01-20 20:55:39 +01:00
parent fee282f49c
commit 6d08e761c8
6 changed files with 49 additions and 13 deletions
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10
src/db/plugins/simple/SimpleDatabasePlugin.cxx
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@@ -238,20 +238,20 @@ SimpleDatabase::GetSong(std::string_view uri) const
throw DatabaseError(DatabaseErrorCode::NOT_FOUND,
"No such song");
light_song.Construct(song->Export());
exported_song.Construct(song->Export());
#ifndef NDEBUG
++borrowed_song_count;
#endif
return &light_song.Get();
return &exported_song.Get();
}
void
SimpleDatabase::ReturnSong([[maybe_unused]] const LightSong *song) const noexcept
{
assert(song != nullptr);
assert(song == prefixed_light_song || song == &light_song.Get());
assert(song == prefixed_light_song || song == &exported_song.Get());
if (prefixed_light_song != nullptr) {
delete prefixed_light_song;
@@ -262,7 +262,7 @@ SimpleDatabase::ReturnSong([[maybe_unused]] const LightSong *song) const noexcep
--borrowed_song_count;
#endif
light_song.Destruct();
exported_song.Destruct();
}
}
@@ -316,7 +316,7 @@ SimpleDatabase::Visit(const DatabaseSelection &selection,
if (visit_song) {
Song *song = r.directory->FindSong(r.rest);
if (song != nullptr) {
const LightSong song2 = song->Export();
const auto song2 = song->Export();
if (selection.Match(song2))
visit_song(song2);