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