150 lines
4.3 KiB
C++
150 lines
4.3 KiB
C++
/*
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* Copyright (C) 2024 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS 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 3 of the License, or
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* (at your option) any later version.
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*
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* LMS 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
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "FileScanQueue.hpp"
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#include "core/Exception.hpp"
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#include "core/IConfig.hpp"
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#include "core/ILogger.hpp"
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#include "core/ITraceLogger.hpp"
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#include "core/Path.hpp"
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#include "image/Exception.hpp"
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#include "image/Image.hpp"
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#include "metadata/Exception.hpp"
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namespace lms::scanner
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{
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FileScanQueue::FileScanQueue(metadata::IParser& parser, std::size_t threadCount, bool& abort)
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: _metadataParser{ parser }
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, _scanContextRunner{ _scanContext, threadCount, "FileScan" }
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, _abort{ abort }
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{
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}
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void FileScanQueue::pushScanRequest(const std::filesystem::path& path, ScanRequestType type)
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{
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{
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std::scoped_lock lock{ _mutex };
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_ongoingScanCount += 1;
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}
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_scanContext.post([=, this] {
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if (_abort)
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{
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std::scoped_lock lock{ _mutex };
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_ongoingScanCount -= 1;
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}
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else
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{
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FileScanResult result;
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result.path = path;
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switch (type)
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{
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case ScanRequestType::AudioFile:
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result.scanData = scanAudioFile(path);
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break;
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case ScanRequestType::ImageFile:
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result.scanData = scanImageFile(path);
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}
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{
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std::scoped_lock lock{ _mutex };
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_scanResults.emplace_back(std::move(result));
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_ongoingScanCount -= 1;
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}
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}
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_condVar.notify_all();
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});
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}
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AudioFileScanData FileScanQueue::scanAudioFile(const std::filesystem::path& path)
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{
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LMS_SCOPED_TRACE_OVERVIEW("Scanner", "ScanAudioFile");
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std::unique_ptr<metadata::Track> track;
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try
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{
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track = _metadataParser.parse(path);
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}
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catch (const metadata::Exception& e)
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{
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LMS_LOG(DBUPDATER, INFO, "Failed to parse audio file '" << path.string() << "'");
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}
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return track;
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}
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ImageFileScanData FileScanQueue::scanImageFile(const std::filesystem::path& path)
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{
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LMS_SCOPED_TRACE_OVERVIEW("Scanner", "ScanImageFile");
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std::optional<ImageInfo> optInfo;
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try
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{
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std::unique_ptr<image::IRawImage> rawImage{ image::decodeImage(path) };
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ImageInfo& imageInfo{ optInfo.emplace() };
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imageInfo.width = rawImage->getWidth();
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imageInfo.height = rawImage->getHeight();
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}
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catch (const image::Exception& e)
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{
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LMS_LOG(DBUPDATER, ERROR, "Cannot read image in file '" << path.string() << "': " << e.what());
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}
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return optInfo;
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}
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std::size_t FileScanQueue::getResultsCount() const
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{
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std::scoped_lock lock{ _mutex };
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return _scanResults.size();
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}
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size_t FileScanQueue::popResults(std::vector<FileScanResult>& results, std::size_t maxCount)
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{
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results.clear();
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results.reserve(maxCount);
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{
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std::scoped_lock lock{ _mutex };
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while (results.size() < maxCount && !_scanResults.empty())
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{
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results.push_back(std::move(_scanResults.front()));
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_scanResults.pop_front();
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}
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}
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return results.size();
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}
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void FileScanQueue::wait(std::size_t maxScanRequestCount)
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{
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LMS_SCOPED_TRACE_OVERVIEW("Scanner", "WaitParseResults");
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std::unique_lock lock{ _mutex };
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_condVar.wait(lock, [=, this] { return _ongoingScanCount <= maxScanRequestCount; });
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}
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} // namespace lms::scanner
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