7bb251dad8
This eliminates all `Storage::GetInfo()` calls from `UpdateWalk::PurgeDeletedFromDirectory()` and instead uses a "marker" field to mark items that have been visited; later, all unmarked items can be deleted. This eliminates a lot of redundant I/O which is noticable with the `curl` storage plugin (i.e. WebDAV).
58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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#ifndef MPD_PLAYLIST_INFO_HXX
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#define MPD_PLAYLIST_INFO_HXX
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#include <string>
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#include <string_view>
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#include <chrono>
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/**
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* A directory entry pointing to a playlist file.
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*/
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struct PlaylistInfo {
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/**
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* The UTF-8 encoded name of the playlist file.
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*/
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std::string name;
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/**
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* The time stamp of the last file modification. A negative
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* value means that this is unknown/unavailable.
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*/
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std::chrono::system_clock::time_point mtime =
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std::chrono::system_clock::time_point::min();
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/**
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* This field is used by the database update to check whether
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* an item has disappeared.
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*/
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bool mark;
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class CompareName {
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const std::string_view name;
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public:
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constexpr CompareName(std::string_view _name) noexcept
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:name(_name) {}
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[[gnu::pure]]
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bool operator()(const PlaylistInfo &pi) const noexcept {
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return pi.name == name;
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}
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};
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PlaylistInfo() = default;
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template<typename N>
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explicit PlaylistInfo(N &&_name,
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std::chrono::system_clock::time_point _mtime=std::chrono::system_clock::time_point::min())
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:name(std::forward<N>(_name)), mtime(_mtime) {}
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PlaylistInfo(const PlaylistInfo &other) = delete;
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PlaylistInfo(PlaylistInfo &&) = default;
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};
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#endif
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