64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
/*
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* Copyright 2003-2021 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 "Walk.hxx"
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#include "db/DatabaseLock.hxx"
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#include "db/plugins/simple/Directory.hxx"
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#include "storage/FileInfo.hxx"
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Directory *
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UpdateWalk::MakeVirtualDirectoryIfModified(Directory &parent, std::string_view name,
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const StorageFileInfo &info,
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unsigned virtual_device) noexcept
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{
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Directory *directory = parent.FindChild(name);
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// directory exists already
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if (directory != nullptr) {
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if (directory->IsMount())
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return nullptr;
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if (directory->mtime == info.mtime &&
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directory->device == virtual_device &&
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!walk_discard) {
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/* not modified */
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return nullptr;
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}
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editor.DeleteDirectory(directory);
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modified = true;
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}
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directory = parent.MakeChild(name);
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directory->mtime = info.mtime;
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directory->device = virtual_device;
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return directory;
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}
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Directory *
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UpdateWalk::LockMakeVirtualDirectoryIfModified(Directory &parent,
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std::string_view name,
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const StorageFileInfo &info,
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unsigned virtual_device) noexcept
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{
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const ScopeDatabaseLock protect;
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return MakeVirtualDirectoryIfModified(parent, name,
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info, virtual_device);
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}
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