/usr/include/ITK-4.5/itkMemoryUsageObserver.h is in libinsighttoolkit4-dev 4.5.0-3.
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 __itkMemoryUsageObserver_h
#define __itkMemoryUsageObserver_h
#include "itkConfigure.h"
#include "itkMacro.h"
#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itkIntTypes.h"
#if defined( WIN32 ) || defined( _WIN32 )
#include <windows.h>
#define SUPPORT_TOOLHELP32
#if defined( SUPPORT_TOOLHELP32 )
typedef LONG NTSTATUS;
#endif
#endif
namespace itk
{
/** \class MemoryUsageObserver
* \brief Provides the memory usage of the process.
*
* This class represents a memory load analyser object
* and provides a memory usage in platform-independent format.
*
* \ingroup ITKCommon
*/
class ITKCommon_EXPORT MemoryUsageObserverBase
{
public:
/** Define the type for the memory usage */
typedef SizeValueType MemoryLoadType;
/** destructor */
virtual ~MemoryUsageObserverBase();
/** Returns the memory load in kO */
virtual MemoryLoadType GetMemoryUsage() = 0;
};
#if defined( WIN32 ) || defined( _WIN32 )
class ITKCommon_EXPORT WindowsMemoryUsageObserver:public MemoryUsageObserverBase
{
public:
WindowsMemoryUsageObserver();
/** destructor */
virtual ~WindowsMemoryUsageObserver();
/** Returns the memory load in kO */
virtual MemoryLoadType GetMemoryUsage();
protected:
#if defined( SUPPORT_TOOLHELP32 )
typedef NTSTATUS ( WINAPI * PZwQuerySystemInformation )(UINT, PVOID, ULONG, PULONG);
// handle ntdll.dll library
HMODULE m_hNTLib;
// Windows native API function to query system information
PZwQuerySystemInformation ZwQuerySystemInformation;
#endif // defined(SUPPORT_TOOLHELP32)
};
#endif // defined(WIN32) || defined(_WIN32)
#ifdef linux
class ITKCommon_EXPORT LinuxMemoryUsageObserver:public MemoryUsageObserverBase
{
public:
/** destructor */
virtual ~LinuxMemoryUsageObserver();
virtual MemoryLoadType GetMemoryUsage();
};
#endif // linux
#if defined( __APPLE__ )
class ITKCommon_EXPORT MacOSXMemoryUsageObserver:public MemoryUsageObserverBase
{
public:
/** destructor */
virtual ~MacOSXMemoryUsageObserver();
virtual MemoryLoadType GetMemoryUsage();
};
#endif // Mac OS X
#if defined( __SUNPRO_CC ) || defined ( __sun__ )
class ITKCommon_EXPORT SunSolarisMemoryUsageObserver:public MemoryUsageObserverBase
{
public:
/** destructor */
virtual ~SunSolarisMemoryUsageObserver();
virtual MemoryLoadType GetMemoryUsage();
};
#endif // Sun Solaris
#if !defined( WIN32 ) && !defined( _WIN32 )
class ITKCommon_EXPORT SysResourceMemoryUsageObserver:public MemoryUsageObserverBase
{
public:
/** destructor */
virtual ~SysResourceMemoryUsageObserver();
virtual MemoryLoadType GetMemoryUsage();
};
#if !defined( __APPLE__ ) && !defined( __SUNPRO_CC ) && !defined ( __sun__ ) && !defined( __FreeBSD__ ) \
&& !defined( __OpenBSD__ )
/** \class MallinfoMemoryUsageObserver
* \brief The MallinfoMemoryUsageObserver
* \ingroup ITKCommon
*/
class ITKCommon_EXPORT MallinfoMemoryUsageObserver:public MemoryUsageObserverBase
{
public:
/** destructor */
virtual ~MallinfoMemoryUsageObserver();
virtual MemoryLoadType GetMemoryUsage();
};
#endif // Mallinfo
#endif // !defined(WIN32) && !defined(_WIN32)
/* \class MemoryUsageObserver
* The best MemoryUsageObserver has been chosen for each OS.
* However, SysResourceMemoryUsageObserver is far from being accurate. Other
* way of getting the Memory Usage shall be used.
* For FreeBSD, some alternatives would be to parse the output of
* "sysctl vm.vmtotal" or "sysctl -a | grep -i memory"
*/
class ITKCommon_EXPORT MemoryUsageObserver:
#if defined( WIN32 ) || defined( _WIN32 )
public WindowsMemoryUsageObserver
#elif defined( linux )
public LinuxMemoryUsageObserver
#elif defined( __SUNPRO_CC ) || defined ( __sun__ )
public SunSolarisMemoryUsageObserver
#elif defined( __APPLE__ )
public MacOSXMemoryUsageObserver
#elif defined( __FreeBSD__ ) || defined( __OpenBSD__ )
public SysResourceMemoryUsageObserver
#else
public MallinfoMemoryUsageObserver
#endif
{
public:
/** destructor */
virtual ~MemoryUsageObserver(){}
};
} // end of namespace itk
#endif // __itkMemoryUsageObserver_h
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