101 lines
3.2 KiB
C++
101 lines
3.2 KiB
C++
/*************************************************************************
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* Copyright (C) 2008, 2010 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 3 of *
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* the License, or (at your option) any later version. *
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* *
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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.*
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*************************************************************************/
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#if !defined(JOB__H)
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#define JOB__H
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#include "../fs/filesystem.h"
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#include "../util/libpartitionmanagerexport.h"
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#include <QObject>
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#include <qglobal.h>
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class QString;
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class QIcon;
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class CopySource;
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class CopyTarget;
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class Report;
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/** Base class for all Jobs.
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Each Operation is made up of one or more Jobs. Usually, an Operation will run each Job it is
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made up of and only complete successfully if each Job could be run without error. Jobs are
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all-or-nothing and try to be as atomic as possible: A Job is either successfully run or not, there
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is no case where a Job finishes with a warning.
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@author Volker Lanz <vl@fidra.de>
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*/
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class LIBKPMCORE_EXPORT Job : public QObject
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{
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Q_OBJECT
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Q_DISABLE_COPY(Job)
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public:
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/** Status of this Job */
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enum JobStatus {
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Pending = 0, /**< Pending, not yet run */
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Success, /**< Successfully run */
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Error /**< Running generated an error */
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};
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protected:
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Job();
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public:
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virtual ~Job() {}
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Q_SIGNALS:
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void started();
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void progress(int);
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void finished();
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public:
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virtual qint32 numSteps() const {
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return 1; /**< @return the number of steps the job takes to complete */
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}
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virtual QString description() const = 0; /**< @return the Job's description */
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virtual bool run(Report& parent) = 0; /**< @param parent parent Report to add new child to for this Job @return true if successfully run */
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virtual QIcon statusIcon() const;
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virtual QString statusText() const;
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JobStatus status() const {
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return m_Status; /**< @return the Job's current status */
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}
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void emitProgress(int i);
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protected:
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bool copyBlocks(Report& report, CopyTarget& target, CopySource& source);
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bool rollbackCopyBlocks(Report& report, CopyTarget& origTarget, CopySource& origSource);
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Report* jobStarted(Report& parent);
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void jobFinished(Report& report, bool b);
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void setStatus(JobStatus s) {
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m_Status = s;
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}
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private:
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JobStatus m_Status;
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};
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#endif
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