Files
lms/src/scanner/MediaScanner.hpp
T
2019-01-23 13:22:43 +01:00

118 lines
3.2 KiB
C++

/*
* Copyright (C) 2013 Emeric Poupon
*
* This file is part of LMS.
*
* LMS is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* LMS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LMS. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <chrono>
#include <Wt/WIOService.h>
#include <Wt/WSignal.h>
#include <boost/asio/system_timer.hpp>
#include "database/ScanSettings.hpp"
#include "database/DatabaseHandler.hpp"
#include "metadata/TagLibParser.hpp"
#include "MediaScannerAddon.hpp"
namespace Scanner {
class MediaScanner
{
public:
MediaScanner(Wt::Dbo::SqlConnectionPool& connectionPool);
void setAddon(MediaScannerAddon& addon);
void start();
void stop();
void restart();
void scheduleImmediateScan();
void reschedule();
struct Stats
{
std::size_t skips = 0; // no change since last scan
std::size_t scans = 0; // actually scanned filed
std::size_t scanErrors = 0; // cannot scan file
std::size_t incompleteScans = 0; // Scanned, but not imported (criteria not filled)
std::size_t additions = 0; // Added in DB
std::size_t deletions = 0; // removed from DB
std::size_t updates = 0; // updated file in DB
std::size_t duplicateHashes = 0; // Same file hashes
std::size_t duplicateMBID = 0; // Same MBID
std::size_t nbFiles() const { return skips + additions + updates; }
std::size_t nbChanges() const { return additions + deletions + updates; }
std::size_t nbErrors() const { return scanErrors + incompleteScans; }
std::size_t nbDuplicates() const { return duplicateHashes + duplicateMBID; }
};
// Called just after scan complete
Wt::Signal<Stats>& scanComplete() { return _sigScanComplete; }
private:
// Job handling
void scheduleScan();
void scheduleScan(std::chrono::seconds duration);
void scheduleScan(std::chrono::system_clock::time_point time);
// Update database (scheduled callback)
void scan(boost::system::error_code ec);
void scanMediaDirectory( boost::filesystem::path mediaDirectory, bool forceScan, Stats& stats);
// Helpers
void refreshScanSettings();
void removeMissingTracks(Stats& stats);
void removeOrphanEntries();
void checkDuplicatedAudioFiles(Stats& stats);
void scanAudioFile(const boost::filesystem::path& file, bool forceScan, Stats& stats);
bool _running;
Wt::WIOService _ioService;
Wt::Signal<Stats> _sigScanComplete;
boost::asio::system_timer _scheduleTimer;
Database::Handler _db;
// Current scan settings
std::size_t _scanVersion;
Wt::WTime _startTime;
Database::ScanSettings::UpdatePeriod _updatePeriod;
std::set<boost::filesystem::path> _fileExtensions;
boost::filesystem::path _mediaDirectory;
MetaData::TagLibParser _metadataParser;
std::vector<MediaScannerAddon*> _addons;
}; // class MediaScanner
} // Scanner