a1abbd9e05
* Download is now Download. * Download uses Sink subclasses to process various events. * Validators can be used to further customize the Sink behaviour.
124 lines
3.0 KiB
C++
124 lines
3.0 KiB
C++
/* Copyright 2013-2015 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "NetJob.h"
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#include "Download.h"
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#include <QDebug>
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void NetJob::partSucceeded(int index)
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{
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// do progress. all slots are 1 in size at least
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auto &slot = parts_progress[index];
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partProgress(index, slot.total_progress, slot.total_progress);
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m_doing.remove(index);
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m_done.insert(index);
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downloads[index].get()->disconnect(this);
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startMoreParts();
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}
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void NetJob::partFailed(int index)
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{
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m_doing.remove(index);
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auto &slot = parts_progress[index];
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if (slot.failures == 3)
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{
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m_failed.insert(index);
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}
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else
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{
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slot.failures++;
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m_todo.enqueue(index);
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}
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downloads[index].get()->disconnect(this);
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startMoreParts();
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}
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void NetJob::partProgress(int index, qint64 bytesReceived, qint64 bytesTotal)
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{
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auto &slot = parts_progress[index];
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current_progress -= slot.current_progress;
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slot.current_progress = bytesReceived;
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current_progress += slot.current_progress;
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total_progress -= slot.total_progress;
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slot.total_progress = bytesTotal;
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total_progress += slot.total_progress;
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setProgress(current_progress, total_progress);
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}
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void NetJob::executeTask()
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{
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qDebug() << m_job_name.toLocal8Bit() << " started.";
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m_running = true;
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for (int i = 0; i < downloads.size(); i++)
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{
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m_todo.enqueue(i);
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}
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// hack that delays early failures so they can be caught easier
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QMetaObject::invokeMethod(this, "startMoreParts", Qt::QueuedConnection);
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}
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void NetJob::startMoreParts()
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{
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// check for final conditions if there's nothing in the queue
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if(!m_todo.size())
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{
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if(!m_doing.size())
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{
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if(!m_failed.size())
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{
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qDebug() << m_job_name << "succeeded.";
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emitSucceeded();
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}
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else
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{
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qCritical() << m_job_name << "failed.";
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emitFailed(tr("Job '%1' failed to process:\n%2").arg(m_job_name).arg(getFailedFiles().join("\n")));
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}
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}
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return;
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}
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// otherwise try to start more parts
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while (m_doing.size() < 6)
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{
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if(!m_todo.size())
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return;
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int doThis = m_todo.dequeue();
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m_doing.insert(doThis);
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auto part = downloads[doThis];
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// connect signals :D
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connect(part.get(), SIGNAL(succeeded(int)), SLOT(partSucceeded(int)));
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connect(part.get(), SIGNAL(failed(int)), SLOT(partFailed(int)));
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connect(part.get(), SIGNAL(netActionProgress(int, qint64, qint64)),
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SLOT(partProgress(int, qint64, qint64)));
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part->start();
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}
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}
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QStringList NetJob::getFailedFiles()
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{
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QStringList failed;
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for (auto index: m_failed)
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{
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failed.push_back(downloads[index]->m_url.toString());
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}
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failed.sort();
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return failed;
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}
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