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/* Copyright (c) 2020, Dyssol Development Team. All rights reserved. This file is part of Dyssol. See LICENSE file for license information. */
#include "MDMatrCacher.h"
#include <fstream>
CMDMatrCacher::CMDMatrCacher(void)
{
m_fileNamePrefix = L"MD_";
//CreateFile();
}
CMDMatrCacher::~CMDMatrCacher(void)
{
}
void CMDMatrCacher::ReadFromCache(double _dT, std::vector<double>& _vTP, std::vector<std::vector<double>>& _vvData,
double& _dCurrWinStart, double& _dCurrWinEnd, size_t& _nCurrOffset) const
{
if( m_descriptors.size() == 0 )
return;
size_t *index = GetIndexToRead( _dT );
_vTP.clear();
_vvData.clear();
for(size_t i=index[0]; i<=index[1]; ++i )
{
if( m_descriptors[i].valid )
ReadFromFile( i, _vTP, _vvData );
m_descriptors[i].valid = false;
}
_nCurrOffset = 0;
for(size_t i=0; i<index[0]; ++i )
_nCurrOffset += m_descriptors[i].descriptorNumber;
_dCurrWinStart = m_descriptors[index[0]].timeStart;
_dCurrWinEnd = m_descriptors[index[1]].timeEnd;
delete[] index;
}
void CMDMatrCacher::ReadFromCache(double _dT1, double _dT2, std::vector<double>& _vTP, std::vector<std::vector<double>>& _vvData,
double& _dCurrWinStart, double& _dCurrWinEnd, size_t& _nCurrOffset) const
{
if( _dT1 == _dT2 )
{
ReadFromCache( _dT1, _vTP, _vvData, _dCurrWinStart, _dCurrWinEnd, _nCurrOffset );
return;
}
if( m_descriptors.size() == 0 )
return;
size_t *index = GetIndexToRead( _dT1, _dT2 );
_vTP.clear();
_vvData.clear();
for(size_t i=index[0]; i<=index[1]; ++i )
{
if( m_descriptors[i].valid )
ReadFromFile( i, _vTP, _vvData );
m_descriptors[i].valid = false;
}
_nCurrOffset = 0;
for(size_t i=0; i<index[0]; ++i )
_nCurrOffset += m_descriptors[i].descriptorNumber;
_dCurrWinStart = m_descriptors[index[0]].timeStart;
_dCurrWinEnd = m_descriptors[index[1]].timeEnd;
delete[] index;
}
void CMDMatrCacher::WriteToCache(const std::vector<double>& _vTP, std::vector<std::vector<double>>& _vvData, bool _bCoherent)
{
bool bInsertNewDescr;
size_t index;
GetIndexToWrite( _vTP, 0, index, bInsertNewDescr );
if( _bCoherent && !bInsertNewDescr ) // no changes in cached data -> just set descriptors to 'valid'
{
auto nNumber = static_cast<int64_t>(_vTP.size());
while( nNumber > 0 )
{
m_descriptors[index].valid = true;
nNumber -= static_cast<int64_t>(m_descriptors[index].descriptorNumber);
index++;
}
return;
}
if( _vTP.size() != 0 )
{
size_t nNumber = _vTP.size();
size_t nStartTP = 0;
while( nNumber >= m_chunk*2 )
{
WriteData( index, _vvData, _vTP, nStartTP, m_chunk, bInsertNewDescr );
index++;
nStartTP += m_chunk;
nNumber -= m_chunk;
}
WriteData( index, _vvData, _vTP, nStartTP, nNumber, bInsertNewDescr );
index++;
}
RemoveUnusedBlocks();
if( ( index < (int)m_descriptors.size() ) && ( !m_descriptors[index].valid ) )
while( ( index < m_descriptors.size() ) && ( !m_descriptors[index].valid ) )
{
m_descriptors.erase( m_descriptors.begin() + index );
//index++;
}
}
void CMDMatrCacher::WriteData(size_t _nIndex, std::vector<std::vector<double>>& _vvData, const std::vector<double>& _vTP, size_t _nStartTP, size_t _nSize, bool _bInsert)
{
bool bInsert = false;
SDescriptor newDescr( true, 0, _nSize, _vTP[_nStartTP], _vTP[_nStartTP+_nSize-1], 0 );
if (_bInsert || _nIndex < m_descriptors.size() && m_descriptors[_nIndex].valid || _nIndex >= m_descriptors.size() || _nSize > m_descriptors[_nIndex].descriptorNumber)
bInsert = true;
else
{
newDescr.fileNumber = m_descriptors[_nIndex].fileNumber;
newDescr.filePosition = m_descriptors[_nIndex].filePosition;
}
WriteToFile( newDescr, bInsert, _nSize, _vTP, _vvData, _nStartTP );
if( bInsert )
m_descriptors.insert( m_descriptors.begin() + _nIndex, newDescr );
else
m_descriptors[_nIndex] = newDescr;
}
void CMDMatrCacher::ReadFromFile(size_t _nIndex, std::vector<double>& _vTP, std::vector<std::vector<double>>& _vvData) const
{
std::ifstream *pFile = OpenFileToRead( _nIndex );
size_t nNumber, nDataLen;
pFile->read( (char*)&nNumber, sizeof(nNumber) );
pFile->read( (char*)&nDataLen, sizeof(nDataLen) );
if( nNumber != 0 )
{
double *bufferTP = new double[ nNumber ];
double *bufferData = new double[ nNumber*nDataLen ];
pFile->read( (char*)bufferTP, sizeof(double)*nNumber );
pFile->read( (char*)bufferData, sizeof(double)*nNumber*nDataLen );
size_t nLastSize = _vTP.size();
_vTP.resize( _vTP.size() + nNumber );
if( _vvData.size() != nDataLen )
_vvData.resize( nDataLen );
for(size_t i=0; i<_vvData.size(); ++i )
_vvData[i].resize( nLastSize + nNumber );
for(size_t i=0; i<nNumber; ++i )
_vTP[i+nLastSize] = bufferTP[i];
for(size_t i=0; i<nDataLen; ++i )
for(size_t j=0; j<nNumber; ++j )
_vvData[i][j+nLastSize] = bufferData[nNumber*i + j];
delete[] bufferTP;
delete[] bufferData;
}
pFile->close();
delete pFile;
}
void CMDMatrCacher::WriteToFile(SDescriptor& _currDescr, bool _bInsert, size_t _nNumber, const std::vector<double>& _vTimePoints, const std::vector<std::vector<double>>& _vvData, size_t _nOffset) const
{
size_t nDataLen = _vvData.size()*_nNumber;
size_t nDataDims = _vvData.size();
uint64_t nBytesToWritwe = sizeof(_nNumber) + sizeof(nDataDims) + sizeof(double)*_nNumber + sizeof(double)*nDataLen;
std::fstream *pFile = OpenFileToWrite( _currDescr, _bInsert, _nNumber, nBytesToWritwe );
double *buffer = new double[ nDataLen ];
for(size_t i=0; i<_vvData.size(); ++i )
for(size_t j=0; j<_nNumber; ++j )
buffer[_nNumber*i+j] = _vvData[i][j+_nOffset];
pFile->write( (char*)&_nNumber, sizeof(_nNumber) );
pFile->write( (char*)&nDataDims, sizeof(nDataDims) );
pFile->write( (char*)&(_vTimePoints[_nOffset]), sizeof(double)*_nNumber );
pFile->write( (char*)buffer, sizeof(double)*nDataLen );
delete[] buffer;
pFile->close();
delete pFile;
}
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