126 lines
3.4 KiB
C++
126 lines
3.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// LameXP - Audio Encoder Front-End
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// Copyright (C) 2004-2011 LoRd_MuldeR <MuldeR2@GMX.de>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (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 along
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// with this program; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// http://www.gnu.org/licenses/gpl-2.0.txt
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///////////////////////////////////////////////////////////////////////////////
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#include "Thread_DiskObserver.h"
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#include "Global.h"
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#include "Model_Progress.h"
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#include <QDir>
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#define MIN_DISKSPACE 104857600ui64 //100 MB
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////////////////////////////////////////////////////////////
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// Constructor & Destructor
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////////////////////////////////////////////////////////////
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DiskObserverThread::DiskObserverThread(const QString &path)
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:
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m_path(makeRootDir(path))
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{
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}
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DiskObserverThread::~DiskObserverThread(void)
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{
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}
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////////////////////////////////////////////////////////////
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// Protected functions
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////////////////////////////////////////////////////////////
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void DiskObserverThread::run(void)
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{
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qDebug("DiskSpace observer started!");
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try
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{
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observe();
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}
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catch(...)
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{
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fflush(stdout);
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fflush(stderr);
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fprintf(stderr, "\nGURU MEDITATION !!!\n");
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FatalAppExit(0, L"Unhandeled exception error, application will exit!");
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TerminateProcess(GetCurrentProcess(), -1);
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}
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while(m_semaphore.available()) m_semaphore.tryAcquire();
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}
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void DiskObserverThread::observe(void)
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{
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unsigned __int64 minimumSpace = MIN_DISKSPACE;
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unsigned __int64 freeSpace, previousSpace = 0ui64;
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bool ok = false;
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forever
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{
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freeSpace = lamexp_free_diskspace(m_path, &ok);
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if(ok)
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{
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if(freeSpace < minimumSpace)
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{
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qWarning("Free diskspace on '%s' dropped below %s MB, only %s MB free!", m_path.toUtf8().constData(), QString::number(minimumSpace / 1048576ui64).toUtf8().constData(), QString::number(freeSpace / 1048576ui64).toUtf8().constData());
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emit messageLogged(tr("Low diskspace on drive '%1' detected (only %2 MB are free), problems can occur!").arg(QDir::toNativeSeparators(m_path), QString::number(freeSpace / 1048576ui64)), ProgressModel::SysMsg_Warning);
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minimumSpace = qMin(freeSpace, (minimumSpace >> 1));
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}
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if(freeSpace != previousSpace)
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{
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emit freeSpaceChanged(freeSpace);
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previousSpace = freeSpace;
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}
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}
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if(m_semaphore.tryAcquire(1, 2000)) break;
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}
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}
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QString DiskObserverThread::makeRootDir(const QString &baseDir)
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{
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QDir dir(baseDir);
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if(!dir.exists())
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{
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return baseDir;
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}
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bool success = true;
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while(success)
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{
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success = dir.cdUp();
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}
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return dir.canonicalPath();
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}
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////////////////////////////////////////////////////////////
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// SLOTS
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////////////////////////////////////////////////////////////
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/*NONE*/
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////////////////////////////////////////////////////////////
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// EVENTS
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////////////////////////////////////////////////////////////
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/*NONE*/
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