strawberry-audio-player-win.../src/core/taskmanager.h

87 lines
2.2 KiB
C++

/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2010, David Sansome <me@davidsansome.com>
* Copyright 2019-2021, Jonas Kvinge <jonas@jkvinge.net>
*
* Strawberry 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.
*
* Strawberry 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 Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef TASKMANAGER_H
#define TASKMANAGER_H
#include "config.h"
#include <QtGlobal>
#include <QObject>
#include <QMutex>
#include <QList>
#include <QMap>
#include <QString>
class TaskManager : public QObject {
Q_OBJECT
public:
explicit TaskManager(QObject *parent = nullptr);
struct Task {
Task() : id(0), progress(0), progress_max(0), blocks_collection_scans(false) {}
int id;
QString name;
quint64 progress;
quint64 progress_max;
bool blocks_collection_scans;
};
class ScopedTask {
public:
ScopedTask(const int task_id, TaskManager *task_manager) : task_id_(task_id), task_manager_(task_manager) {}
~ScopedTask() { task_manager_->SetTaskFinished(task_id_); }
private:
const int task_id_;
TaskManager *task_manager_;
Q_DISABLE_COPY(ScopedTask)
};
// Everything here is thread safe
QList<Task> GetTasks();
int StartTask(const QString &name);
void SetTaskBlocksCollectionScans(const int id);
void SetTaskProgress(const int id, const quint64 progress, const quint64 max = 0);
void IncreaseTaskProgress(const int id, const quint64 progress, const quint64 max = 0);
void SetTaskFinished(const int id);
quint64 GetTaskProgress(const int id);
signals:
void TasksChanged();
void PauseCollectionWatchers();
void ResumeCollectionWatchers();
private:
QMutex mutex_;
QMap<int, Task> tasks_;
int next_task_id_;
Q_DISABLE_COPY(TaskManager)
};
#endif // TASKMANAGER_H