apps/kinfocenter/memory/memory_hpux.cpp

   1 /*
   2
   3     This file will be included by memory.cpp !
   4
   5     HP-UX is really ugly to retrieve information from !
   6     Implemented on 24.04.1999 by Helge Deller (deller@gmx.de)
   7     Tested on an HP9000/715/64 under HPUX-10.20.
   8     Updated for QT 2.0 on 27.04.1999 (deller)
   9
  10     Sorry, but I don't know, who implemented the first (little) version of
  11     update(), but it showed wrong sizes !
  12
  13     Many thanks goes also to Mike Romberg, who implemented such functions in
  14     the program "xosview". Here's his copyright:
  15     Copyright (c) 1994, 1995 by Mike Romberg ( romberg@fsl.noaa.gov )
  16
  17 */
  18
  19 #include <stdio.h>
  20 #include <unistd.h>
  21 #include <sys/param.h>
  22 #include <sys/pstat.h>
  23
  24
  25 #define MAX_SWAP_AREAS 16
  26
  27 void KCMMemory::fetchValues()
  28 {
  29   int           page_size,i;
  30   unsigned long total_mem, total_free,
  31                 total_physical, total_swap, free_physical,
  32                 used_physical, used_swap, free_swap;
  33
  34   struct        pst_static pststatic;
  35   struct        pst_dynamic stats;
  36   struct        pst_vminfo vmstats;
  37   unsigned long fields_[4];
  38   struct        pst_swapinfo swapinfo;
  39
  40   pstat_getstatic( &pststatic, sizeof( struct pst_static ), (size_t)1, 0);
  41   total_physical = pststatic.physical_memory;
  42   page_size = (int)pststatic.page_size;
  43
  44   pstat_getdynamic(&stats, sizeof( pst_dynamic ), (size_t)1, 0);
  45   pstat_getvminfo(&vmstats, sizeof(vmstats), (size_t)1, 0);
  46
  47   fields_[0] = stats.psd_rmtxt + stats.psd_arm;  // TEXT
  48   fields_[1] = stats.psd_rm - stats.psd_rmtxt;   // USED
  49   fields_[2] = total_physical - fields_[0] - fields_[1] - stats.psd_free; //OTHER
  50   fields_[3] = stats.psd_free;  // FREE
  51
  52   used_physical   = (total_physical - fields_[3]) * page_size;
  53   total_physical *= page_size;
  54   free_physical  = (total_physical - used_physical);
  55
  56
  57   /* Now check the SWAP-AREAS !! */
  58
  59   total_swap = free_swap  = 0;
  60
  61   for (i = 0 ; i < MAX_SWAP_AREAS ; i++)
  62   {
  63       pstat_getswap(&swapinfo, sizeof(swapinfo), (size_t)1, i);
  64       if (swapinfo.pss_idx == (unsigned)i)
  65       {
  66           swapinfo.pss_nfpgs *= 4;  // nfpgs is in 512 Byte Blocks....
  67           if (swapinfo.pss_nblksenabled == 0) // == 0 ??
  68               swapinfo.pss_nblksenabled = swapinfo.pss_nfpgs;
  69           total_swap += (((unsigned long)swapinfo.pss_nblksenabled) * 1024);
  70           free_swap  += (((unsigned long)swapinfo.pss_nfpgs       ) * 1024);
  71       }
  72   }
  73
  74   used_swap = total_swap - free_swap;
  75
  76
  77   /* Now display the results */
  78
  79   total_mem  = total_physical;                  // + total_swap;
  80   total_free = (total_physical - used_physical);// + free_swap;
  81
  82   memoryInfos[TOTAL_MEM]    = MEMORY(total_mem); // total physical memory (without swaps)
  83   memoryInfos[FREE_MEM]     = MEMORY(total_free);// total free physical memory (without swaps)
  84   memoryInfos[SHARED_MEM]   = NO_MEMORY_INFO;               /* FIXME ?? */
  85   memoryInfos[BUFFER_MEM]   = MEMORY(fields_[2])*page_size; /* FIXME ?? */
  86   memoryInfos[SWAP_MEM]     = MEMORY(total_swap); // total size of all swap-partitions
  87   memoryInfos[FREESWAP_MEM] = MEMORY(free_swap);  // free memory in swap-partitions
  88 #ifdef __GNUC__
  89 #warning "FIXME: memoryInfos[CACHED_MEM]"
  90 #endif
  91   memoryInfos[CACHED_MEM] = NO_MEMORY_INFO; // cached memory in ram
  92 }