Inventor/devices/SoCpuDevice.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/
#if !defined SOCPUDEVICE_H
#define SOCPUDEVICE_H

#include <Inventor/devices/SoDevice.h>

#include <Inventor/STL/vector>
#include <Inventor/STL/string>
#include <Inventor/STL/map>

#include <Inventor/threads/SbThreadMutex.h>

#include <Inventor/SbString.h>
#include <Inventor/errors/SoDebugError.h>

class  SoCpuDevice : public SoDevice
{
  friend class SoDevice;

  // ----------------------- Public usage --------------------------------------

public:

  virtual SbString getDeviceName() const;

  enum ProcessorArchitecture
  {
    X86_64,
    X86_32,
    IA64,
    PPC_32,
    PPC_64,
    UNKNOWN
  };

  virtual unsigned long long getTotalMemory() const;

  virtual unsigned long long getAvailableMemory() const;

  virtual SbString getDriverVersion() const { return SbString("0.0"); };

  ProcessorArchitecture getArchitecture() const;

  bool isActive() const;

  bool hasMMX() const;

  bool hasSSE() const;

  int getSSELevel() const;

  virtual unsigned int getLogicalUnits() const;

  unsigned int getCacheSize( int cacheLevel ) const;

  static SoCpuDevice* getDevice( int index = 0 );

  static unsigned int getDevicesCount();

  static SoCpuDevice* findFirstAvailableDevice();

  static void initClass();

  static void exitClass();

  friend std::ostream& operator << ( std::ostream& os, const SoCpuDevice& dev )
  {
    unsigned long long allocatedMem,  freeMem;
    dev.getMemoryInfo( allocatedMem, freeMem );

    return os << "[CPU name]: " << dev.m_name.toLatin1() << "\n" << \
                 "[RAM Size]: " << (dev.m_totalMemory)/(1024*1024) << "MB" << "\n" << // memory size returned in Mbytes.
                 "[Available RAM size]: " << freeMem /(1024*1024) << "MB" << "\n" << // memory size returned in Mbytes.
                 "[Cores number]: " << dev.m_coresCount << "\n" << \
                 "[L1 cache size]: " << dev.m_cacheSize[0]/1024 << "KB\n" << \
                 "[L2 cache size]: " << dev.m_cacheSize[1]/1024 << "KB\n" << \
                 "[L3 cache size]: " << dev.m_cacheSize[2]/1024 << "KB\n" << \
                 "[MMX]: " << (dev.m_hasMMX?"available":"not available") << "\n" << \
                 "[SSE level]: " << dev.m_sseLevel;
  }

  // ----------------------- Protected usage --------------------------------------

  private:
  static unsigned int s_sse_alignement;

  // return the total memory used by the caller process
  virtual unsigned long long getProcessMemory() const;

  // return the peak memory used by the caller process
  virtual unsigned long long getPeakProcessMemory() const;

private:

  SoCpuDevice();

  virtual ~SoCpuDevice();

  static bool findFirstDeviceFunc( SoDevice* device );

  static bool findDevicesCount( SoDevice* device );

  // ----------------------- Private usage --------------------------------------

private:
  void getMemoryInfo( unsigned long long& allocatedMem, unsigned long long& freeMem ) const;

  typedef std::map<std::string, unsigned long long> MemInfoMap;

  static void fetchMemInfos( MemInfoMap& memInfo );

  static bool getTotalAndFreeMem( unsigned long long& totalMem, unsigned long long& freeMem );

  unsigned long long m_totalMemory;

  // CPU name
  SbString m_name;

  ProcessorArchitecture m_architecture;

  bool m_isActive;

  bool m_hasMMX;

  bool m_hasSSE;

  int m_sseLevel;

  unsigned int m_coresCount;

  unsigned int m_cacheSize[3];

  static SbThreadMutex s_initThreadMutex;

  static unsigned int s_processorsCount;

  static int s_initRefCount;
};

// ----------------------- Inline functions --------------------------------------

inline unsigned long long
SoCpuDevice::getTotalMemory() const
{
  return m_totalMemory;
}

//------------------------------------------------------------------------------
inline SoCpuDevice::ProcessorArchitecture
SoCpuDevice::getArchitecture() const
{
  return m_architecture;
}


//------------------------------------------------------------------------------
inline bool
SoCpuDevice::isActive() const
{
  return m_isActive;
}


//------------------------------------------------------------------------------
inline bool
SoCpuDevice::hasSSE() const
{
  return m_hasSSE;
}


//------------------------------------------------------------------------------
inline int
SoCpuDevice::getSSELevel() const
{
  return m_sseLevel;
}

//------------------------------------------------------------------------------
inline bool
SoCpuDevice::hasMMX() const
{
  return m_hasMMX;
}


//------------------------------------------------------------------------------

#endif // SOCPUDEVICE_H

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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