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 * Cppcheck - A tool for static C/C++ code analysis
 * Copyright (C) 2007-2015 Daniel Marjamäki and Cppcheck team.
 * This program 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.
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
#ifndef THREADHANDLER_H
#define THREADHANDLER_H
#include <QObject>
#include <QStringList>
#include <QDateTime>
#include <set>
#include "threadresult.h"
class ResultsView;
class CheckThread;
class QSettings;
class Settings;
/// @addtogroup GUI
* @brief This class handles creating threadresult and starting threads
class ThreadHandler : public QObject {
    Q_OBJECT
    explicit ThreadHandler(QObject *parent = 0);
    virtual ~ThreadHandler();
    * @brief Set the number of threads to use
    * @param count The number of threads to use
    void SetThreadCount(const int count);
    * @brief Initialize the threads (connect all signals to resultsview's slots)
    * @param view View to show error results
    void Initialize(ResultsView *view);
    * @brief Load settings
    * @param settings QSettings to load settings from
    void LoadSettings(QSettings &settings);
    * @brief Save settings
    * @param settings QSettings to save settings to
    void SaveSettings(QSettings &settings) const;
    * @brief Clear all files from cppcheck
    void ClearFiles();
    * @brief Set files to check
    * @param files files to check
    void SetFiles(const QStringList &files);
    * @brief Start the threads to check the files
    * @param settings Settings for checking
    * @param recheck Should we reuse the files we checked earlier
    void Check(const Settings &settings, bool recheck);
    * @brief Is checking running?
    * @return true if check is running, false otherwise.
    bool IsChecking() const;
    * @brief Have we checked files already?
    * @return true check has been previously run and recheck can be done
    bool HasPreviousFiles() const;
    * @brief Return count of files we checked last time.
    * @return count of files that were checked last time.
    int GetPreviousFilesCount() const;
    * @brief Return the time elapsed while scanning the previous time.
    * @return the time elapsed in milliseconds.
    int GetPreviousScanDuration() const;
     * @brief Get files that should be rechecked because they have been
     * changed.
    QStringList GetReCheckFiles(bool all) const;
    * @brief Signal that all threads are done
    void Done();
public slots:
    * @brief Slot to stop all threads
    void Stop();
protected slots:
    * @brief Slot that a single thread is done
    void ThreadDone();
    * @brief List of files checked last time (used when rechecking)
    QStringList mLastFiles;
    /** @brief date and time when current checking started */
    QDateTime mCheckStartTime;
     * @brief when was the files checked the last time (used when rechecking)
    QDateTime mLastCheckTime;
    * @brief Timer used for measuring scan duration
    QTime mTime;
    * @brief The previous scan duration in milliseconds.
    int mScanDuration;
    * @brief Function to delete all threads
    void RemoveThreads();
    * @brief Thread results are stored here
    ThreadResult mResults;
    * @brief List of threads currently in use
    QList<CheckThread *> mThreads;
    * @brief The amount of threads currently running
    int mRunningThreadCount;
     * @brief Check if a file needs to be rechecked. Recursively checks
     * included headers. Used by GetReCheckFiles()
    bool NeedsReCheck(const QString &filename, std::set<QString> &modified, std::set<QString> &unmodified) const;
#endif // THREADHANDLER_H
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