/usr/include/ITK-4.9/itkSmapsFileParser.hxx is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkSmapsFileParser_hxx
#define itkSmapsFileParser_hxx
#include "itkSmapsFileParser.h"
#if defined( _WIN32 )
#include <io.h>
#include <process.h>
#else
#include <unistd.h>
#endif
#include <fstream> // std::ifstream
#include <numeric> // std::accumulate
#include <algorithm> // std::find
namespace itk
{
template< typename TMapDataType >
MapFileParser< TMapDataType >
::~MapFileParser()
{}
template< typename TMapDataType >
bool
MapFileParser< TMapDataType >::Update()
{
this->ReadFile(m_MapFilePath);
return m_MapFilePath.empty();
}
template< typename TMapDataType >
typename MapFileParser< TMapDataType >::MemoryLoadType
MapFileParser< TMapDataType >
::GetHeapUsage()
{
if ( m_MapData.Empty() )
{
std::cerr << "Read a map file before quering memory usage";
}
return m_MapData.GetHeapUsage();
}
template< typename TMapDataType >
typename MapFileParser< TMapDataType >::MemoryLoadType
MapFileParser< TMapDataType >
::GetStackUsage()
{
if ( m_MapData.Empty() )
{
std::cerr << "Read a map file before quering memory usage";
}
return m_MapData.GetStackUsage();
}
template< typename TMapDataType >
typename MapFileParser< TMapDataType >::MemoryLoadType
MapFileParser< TMapDataType >
::GetTotalMemoryUsage()
{
if ( m_MapData.Empty() )
{
std::cerr << "Read a map file before quering memory usage";
}
return m_MapData.GetTotalMemoryUsage();
}
template< typename TMapDataType >
typename MapFileParser< TMapDataType >::MemoryLoadType
MapFileParser< TMapDataType >
::GetMemoryUsage(const char *filter, const char *token)
{
if ( m_MapData.Empty() )
{
std::cerr << "Read a map file before quering memory usage";
}
return m_MapData.GetMemoryUsage(filter, token);
}
//---------------------------------
// SmapsFileParser
//---------------------------------
template< typename TSmapsDataType >
SmapsFileParser< TSmapsDataType >
::~SmapsFileParser()
{}
/* SmapsFileParser implementation */
template< typename TSmapsDataType >
void SmapsFileParser< TSmapsDataType >::ReadFile(const std::string & mapFileLocation)
{
std::stringstream filename;
filename << mapFileLocation;
// if location is empty (default parameter), use the regular linux smaps file.
if ( filename.str().empty() )
{
#if defined( WIN32 ) || defined ( _WIN32 )
itkGenericExceptionMacro(<< "smaps files don't exist on Windows");
#else
int pid = getpid();
filename << "/proc/" << pid << "/smaps";
#endif
}
// open the Smaps file
std::ifstream inputFile( filename.str().c_str() );
// can't find or open the Smaps file
if ( inputFile.is_open() == false )
{
std::cerr << "The smaps file " << filename.str() << " could not be open";
return;
}
try
{
//load the file
inputFile >> this->m_MapData;
}
catch ( ExceptionObject excp )
{
// propagate the exception
itkGenericExceptionMacro(<< "The smaps file " << filename.str() << " is an invalid file or contains errors");
}
this->m_MapFilePath = filename.str();
}
template< typename TVMMapDataType >
VMMapFileParser< TVMMapDataType >
::~VMMapFileParser()
{}
/* VMapFileParser implementation */
template< typename TVMMapDataType >
void VMMapFileParser< TVMMapDataType >::ReadFile(const std::string & mapFileLocation)
{
try
{
if ( !mapFileLocation.empty() )
{
// open the VMap file
std::ifstream inputFile( mapFileLocation.c_str() );
// can't find or open the VMap file
if ( inputFile.is_open() == false )
{
itkGenericExceptionMacro(<< "The VMap file " << mapFileLocation << " could not be open");
return;
}
//load the file
inputFile >> this->m_MapData;
this->m_MapFilePath = mapFileLocation;
}
else
{
#if defined( WIN32 ) || defined ( _WIN32 )
itkGenericExceptionMacro(<< "VMMap files don't exist on Windows");
#else
std::stringstream vmmapCommand;
vmmapCommand << "vmmap " << getpid();
FILE *vmmapCommandOutput = ITK_NULLPTR;
if ( ( vmmapCommandOutput = popen(vmmapCommand.str().c_str(), "r") ) == ITK_NULLPTR )
{
itkGenericExceptionMacro(<< "Error using pmap. Can execute pmap command");
}
// Not optimal solution: copy the output into an std::istream object.
std::stringstream vmmapFile;
char buf[256];
while ( !feof(vmmapCommandOutput) )
{
fgets(buf, 256, vmmapCommandOutput);
vmmapFile << buf;
}
fclose(vmmapCommandOutput);
//fill the data
vmmapFile >> this->m_MapData;
this->m_MapFilePath = "";
#endif
}
}
catch ( ExceptionObject excp )
{
// propagate the exception
itkGenericExceptionMacro(<< "The vmmap file is an invalid file or contains errors");
}
}
} //end namespace itk
#endif //itkSmapsFileParser_hxx
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