pollymc/api/logic/tasks/Task.cpp

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/* Copyright 2013-2021 MultiMC Contributors
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
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* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "Task.h"
#include <QDebug>
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Task::Task(QObject *parent) : QObject(parent)
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{
}
void Task::setStatus(const QString &new_status)
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{
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if(m_status != new_status)
{
m_status = new_status;
emit status(m_status);
}
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}
void Task::setProgress(qint64 current, qint64 total)
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{
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m_progress = current;
m_progressTotal = total;
emit progress(m_progress, m_progressTotal);
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}
void Task::start()
{
switch(m_state)
{
case State::Inactive:
{
qDebug() << "Task" << describe() << "starting for the first time";
break;
}
case State::AbortedByUser:
{
qDebug() << "Task" << describe() << "restarting for after being aborted by user";
break;
}
case State::Failed:
{
qDebug() << "Task" << describe() << "restarting for after failing at first";
break;
}
case State::Succeeded:
{
qDebug() << "Task" << describe() << "restarting for after succeeding at first";
break;
}
case State::Running:
{
qWarning() << "MultiMC tried to start task" << describe() << "while it was already running!";
return;
}
}
// NOTE: only fall thorugh to here in end states
m_state = State::Running;
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emit started();
executeTask();
}
void Task::emitFailed(QString reason)
{
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// Don't fail twice.
if (!isRunning())
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{
qCritical() << "Task" << describe() << "failed while not running!!!!: " << reason;
return;
}
m_state = State::Failed;
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m_failReason = reason;
qCritical() << "Task" << describe() << "failed: " << reason;
emit failed(reason);
emit finished();
}
void Task::emitAborted()
{
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// Don't abort twice.
if (!isRunning())
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{
qCritical() << "Task" << describe() << "aborted while not running!!!!";
return;
}
m_state = State::AbortedByUser;
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m_failReason = "Aborted.";
qDebug() << "Task" << describe() << "aborted.";
emit failed(m_failReason);
emit finished();
}
void Task::emitSucceeded()
{
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// Don't succeed twice.
if (!isRunning())
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{
qCritical() << "Task" << describe() << "succeeded while not running!!!!";
return;
}
m_state = State::Succeeded;
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qDebug() << "Task" << describe() << "succeeded";
emit succeeded();
emit finished();
}
QString Task::describe()
{
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QString outStr;
QTextStream out(&outStr);
out << metaObject()->className() << QChar('(');
auto name = objectName();
if(name.isEmpty())
{
out << QString("0x%1").arg((quintptr)this, 0, 16);
}
else
{
out << name;
}
out << QChar(')');
out.flush();
return outStr;
}
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bool Task::isRunning() const
{
return m_state == State::Running;
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}
bool Task::isFinished() const
{
return m_state != State::Running && m_state != State::Inactive;
}
bool Task::wasSuccessful() const
{
return m_state == State::Succeeded;
}
QString Task::failReason() const
{
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return m_failReason;
}
void Task::logWarning(const QString& line)
{
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qWarning() << line;
m_Warnings.append(line);
}
QStringList Task::warnings() const
{
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return m_Warnings;
}