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/* System Information
*
* Copyright (C) 2001 Robbie Ward <linuxphreak@gmx.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef SYSTEMINFO_H
#define SYSTEMINFO_H
class System
{
public:
/**
* converts bytes to megabytes
*/
static int bytesToMegs( unsigned long );
/**
* @return a pointer to the instance
*/
static System & self();
/**
* Deletes the instance and cleans up after itself
*/
static void cleanup();
/**
* @return the total amount of seconds
* the pc has been running
*/
long uptime() const { return m_uptime; }
/**
* @return the 3 load averages
*/
const double * loadAverages() const { return m_loads; }
/**
* this function does the same as the
* above but returns only the @ref load
* average
*/
double loadAverage( int ) const;
/**
* @return the total ram the system has
*/
unsigned long totalRam() const { return m_totalram; }
/**
* @return the total used ram
*/
unsigned long usedRam() const { return m_usedram; }
/**
* @return the total free ram the system has
*/
unsigned long freeRam() const { return m_freeram; }
/**
* @return the amount of shared
* memory in the system
*/
unsigned long sharedRam() const { return m_sharedram; }
/**
* @return the amount of buffered
* memory in the system
*/
unsigned long bufferRam() const { return m_bufferram; }
/**
* @return the amount of buffered
* memory in the system
*/
unsigned long cacheRam() const { return m_cacheram; }
/**
* @return the total amount of
* high memory
*/
unsigned long totalHigh() const { return m_totalhigh; }
/**
* @return the total amount of
* high free memory
*/
unsigned long freeHigh() const { return m_freehigh; }
/**
* @return the total amount of
* swap the system has
*/
unsigned long totalSwap() const { return m_totalswap; }
/**
* @return the total amount of
* swap used
*/
unsigned long usedSwap() const { return m_usedswap; }
/**
* @return the total amount of
* free swap the system has
*/
unsigned long freeSwap() const { return m_freeswap; }
/**
* @return the number of
* procs running
*/
unsigned short procs() const { return m_procs; }
private:
System();
System( const System & );
System & operator=( const System & );
~System();
void updateData();
long m_uptime; // seconds since boot
double m_loads[3]; // 1, 5, and 15 minute load averages
unsigned long m_totalram; // Total usable main memory size
unsigned long m_usedram; // Used memory size
unsigned long m_freeram; // Available memory size
unsigned long m_sharedram; // Amount of shared memory
unsigned long m_bufferram; // Memory used by buffers
unsigned long m_cacheram; // Amount of cached ram
unsigned long m_totalhigh; // Total high memory size
unsigned long m_freehigh; // Available high memory size
unsigned long m_totalswap; // Total swap space size
unsigned long m_usedswap; // Used swap space size
unsigned long m_freeswap; // Swap space still available
unsigned short m_procs; // Number of current processes
static System * m_self;
};
#endif
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