61 lines
1.1 KiB
C++
61 lines
1.1 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_UPDATE_QUEUE_HXX
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#define MPD_UPDATE_QUEUE_HXX
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#include <string>
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#include <string_view>
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#include <list>
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class SimpleDatabase;
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class Storage;
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struct UpdateQueueItem {
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SimpleDatabase *db;
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Storage *storage;
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std::string path_utf8;
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unsigned id;
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bool discard;
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UpdateQueueItem() noexcept:id(0) {}
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UpdateQueueItem(SimpleDatabase &_db,
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Storage &_storage,
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std::string_view _path, bool _discard,
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unsigned _id) noexcept
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:db(&_db), storage(&_storage), path_utf8(_path),
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id(_id), discard(_discard) {}
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bool IsDefined() const noexcept {
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return id != 0;
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}
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void Clear() noexcept {
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id = 0;
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}
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};
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class UpdateQueue {
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static constexpr unsigned MAX_UPDATE_QUEUE_SIZE = 32;
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std::list<UpdateQueueItem> update_queue;
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public:
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bool Push(SimpleDatabase &db, Storage &storage,
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std::string_view path, bool discard, unsigned id) noexcept;
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UpdateQueueItem Pop() noexcept;
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void Clear() noexcept {
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update_queue.clear();
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}
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void Erase(SimpleDatabase &db) noexcept;
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void Erase(Storage &storage) noexcept;
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};
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#endif
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