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/*
* Copyright (C) 2013, 2014, 2015 by the Konclude Developer Team.
*
* This file is part of the reasoning system Konclude.
* For details and support, see <http://konclude.com/>.
*
* Konclude is free software: you can redistribute it and/or modify it under
* the terms of version 2.1 of the GNU Lesser General Public License (LGPL2.1)
* as published by the Free Software Foundation.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Konclude. If not, see <http://www.gnu.org/licenses/>.
*
* Konclude 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. For more
* details, see GNU Lesser General Public License.
*
*/
#include "CCentralizedAllocationConfigProvidedDependendLimitation.h"
namespace Konclude {
namespace Utilities {
namespace Memory {
CCentralizedAllocationConfigProvidedDependendLimitation::CCentralizedAllocationConfigProvidedDependendLimitation(CConfigurationProvider* configProvider, const QString& configString) {
mConfigString = configString;
mConfigProvider = configProvider;
mMaxMemAllocSize = 0;
mCurrMemAllocSize = 0;
mAddMemAllocSize = 1024*1024*512;
mCriticalMemAllocSize = 1024*1024*1024;
mMemAllocLimited = false;
mLimitatorLinker = nullptr;
mLastConfig = nullptr;
mStatMaxAllocatedMemSize = 0;
}
CCentralizedAllocationConfigProvidedDependendLimitation::~CCentralizedAllocationConfigProvidedDependendLimitation() {
}
CCentralizedAllocationLimitator* CCentralizedAllocationConfigProvidedDependendLimitation::getLimitator() {
QMutexLocker locker(&mSyncMutex);
CCentralizedAllocationLimitator* limitator = new CCentralizedAllocationLimitator(this);
mLimitatorLinker = limitator->append(mLimitatorLinker);
return limitator;
}
cint64 CCentralizedAllocationConfigProvidedDependendLimitation::getAllocatedMemorySize() {
cint64 allocatedMemSize = 0;
CCentralizedAllocationLimitator* limIt = mLimitatorLinker;
while (limIt) {
allocatedMemSize += limIt->getMemoryAllocatedSize();
limIt = limIt->getNext();
}
return allocatedMemSize;
}
cint64 CCentralizedAllocationConfigProvidedDependendLimitation::getAllocatedMemorySizeMaximum() {
mStatMaxAllocatedMemSize = qMax(mStatMaxAllocatedMemSize,getAllocatedMemorySize());
return mStatMaxAllocatedMemSize;
}
cint64 CCentralizedAllocationConfigProvidedDependendLimitation::getReservedMemorySizeMaximum() {
return mCurrMemAllocSize;
}
bool CCentralizedAllocationConfigProvidedDependendLimitation::updateMaxMemoryAllocationSize() {
CConfiguration* currConfig = mConfigProvider->getCurrentConfiguration();
if (mLastConfig != currConfig) {
QMutexLocker locker(&mSyncMutex);
if (mLastConfig != currConfig) {
mLastConfig = currConfig;
mAddMemAllocSize = CConfigDataReader::readConfigInteger(currConfig,mConfigString+".IncreaseAllocationSize",1024*1024*512 /*512 MByte*/);
bool configReadError = false;
bool limited = CConfigDataReader::readConfigBoolean(currConfig,mConfigString+".AllocationLimitation",false,&configReadError);
if (!configReadError && limited) {
configReadError = false;
mCriticalMemAllocSize = CConfigDataReader::readConfigInteger(currConfig,mConfigString+".CriticalAllocationSize",1024*1024*1024 /*1 GByte*/);
cint64 configMaxMemAllocSize = CConfigDataReader::readConfigInteger(currConfig,mConfigString+".MaximumAllocationSize",0,&configReadError);
if (configReadError) {
mMemAllocLimited = false;
} else {
mMemAllocLimited = true;
mMaxMemAllocSize = configMaxMemAllocSize;
return true;
}
} else {
mMemAllocLimited = false;
}
}
}
return false;
}
bool CCentralizedAllocationConfigProvidedDependendLimitation::requestLimitatorMemoryAllocationSizeUpdate() {
CCentralizedAllocationLimitator* limIt = mLimitatorLinker;
while (limIt) {
if (limIt->getRemainingMemoryAllocationSize() > 2*mAddMemAllocSize) {
limIt->notifyRequireUpdateLimit();
}
limIt = limIt->getNext();
}
return true;
}
cint64 CCentralizedAllocationConfigProvidedDependendLimitation::getUpdatedMemoryAllocationLimit(CAllocationLimitator* limitator) {
mStatMaxAllocatedMemSize = qMax(mStatMaxAllocatedMemSize,getAllocatedMemorySize());
bool updated = updateMaxMemoryAllocationSize();
cint64 remSize = limitator->getRemainingMemoryAllocationSize();
if (remSize < mAddMemAllocSize) {
// add some memory
QMutexLocker locker(&mSyncMutex);
if (!mMemAllocLimited) {
mCurrMemAllocSize += mAddMemAllocSize;
return limitator->getMaximumMemoryAllocationSize() + mAddMemAllocSize;
} else {
cint64 tmpAlloc = mMaxMemAllocSize-mCurrMemAllocSize;
tmpAlloc = qMin(tmpAlloc,mAddMemAllocSize);
tmpAlloc = qMax(tmpAlloc,(cint64)0);
mCurrMemAllocSize += tmpAlloc;
if (mCurrMemAllocSize > mCriticalMemAllocSize || tmpAlloc != mAddMemAllocSize) {
requestLimitatorMemoryAllocationSizeUpdate();
}
return limitator->getMaximumMemoryAllocationSize() + tmpAlloc;
}
} else if (remSize > 2*mAddMemAllocSize) {
// get some memory
QMutexLocker locker(&mSyncMutex);
cint64 tmpAllocGet = remSize-mAddMemAllocSize;
mCurrMemAllocSize -= tmpAllocGet;
return limitator->getMaximumMemoryAllocationSize() - tmpAllocGet;
}
return limitator->getMaximumMemoryAllocationSize();
}
}; // end namespace Memory
}; // end namespace Utilities
}; // end namespace Konclude
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