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///////////////////////////////////////////////////////////////////////////////
// LameXP - Audio Encoder Front-End
// Copyright (C) 2004-2016 LoRd_MuldeR <MuldeR2@GMX.de>
//
// This program 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 2 of the License, or
// (at your option) any later version, but always including the *additional*
// restrictions defined in the "License.txt" file.
//
// This program 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 this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// http://www.gnu.org/licenses/gpl-2.0.txt
///////////////////////////////////////////////////////////////////////////////
#include "Thread_DiskObserver.h"
//Internal
#include "Global.h"
#include "Model_Progress.h"
//MUtils
#include <MUtils/Global.h>
#include <MUtils/OSSupport.h>
#include <MUtils/Exception.h>
//Qt
#include <QDir>
#define MIN_DISKSPACE 104857600ui64 //100 MB
////////////////////////////////////////////////////////////
// Constructor & Destructor
////////////////////////////////////////////////////////////
DiskObserverThread::DiskObserverThread(const QString &path)
:
m_path(makeRootDir(path))
{
}
DiskObserverThread::~DiskObserverThread(void)
{
}
////////////////////////////////////////////////////////////
// Protected functions
////////////////////////////////////////////////////////////
void DiskObserverThread::run(void)
{
qDebug("DiskSpace observer started!");
try
{
observe();
}
catch(const std::exception &error)
{
MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nException error:\n%s\n", error.what());
MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
}
catch(...)
{
MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnknown exception error!\n");
MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
}
while(m_semaphore.available()) m_semaphore.tryAcquire();
}
void DiskObserverThread::observe(void)
{
quint64 minimumSpace = MIN_DISKSPACE;
quint64 previousSpace = quint64(-1);
forever
{
quint64 freeSpace = 0ui64;
if(MUtils::OS::free_diskspace(m_path, freeSpace))
{
if(freeSpace < minimumSpace)
{
qWarning("Free diskspace on '%s' dropped below %s MB, only %s MB free!", MUTILS_UTF8(m_path), MUTILS_UTF8(QString::number(minimumSpace / 1048576ui64)), MUTILS_UTF8(QString::number(freeSpace / 1048576ui64)));
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);
minimumSpace = qMin(freeSpace, (minimumSpace >> 1));
}
if(freeSpace != previousSpace)
{
emit freeSpaceChanged(freeSpace);
previousSpace = freeSpace;
}
}
if(m_semaphore.tryAcquire(1, 2000)) break;
}
}
QString DiskObserverThread::makeRootDir(const QString &baseDir)
{
QDir dir(baseDir);
if(!dir.exists())
{
return baseDir;
}
bool success = true;
while(success)
{
success = dir.cdUp();
}
return dir.canonicalPath();
}
////////////////////////////////////////////////////////////
// SLOTS
////////////////////////////////////////////////////////////
/*NONE*/
////////////////////////////////////////////////////////////
// EVENTS
////////////////////////////////////////////////////////////
/*NONE*/
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