apps/kinfocenter/memory/memory_sgi.cpp

   1
   2 #include <stdio.h>
   3 #include <unistd.h>
   4 #include <sys/sysmp.h>
   5 #include <sys/ipc.h>
   6
   7 // The following define is needed for SGI IRIX 6.2
   8 #define _KMEMUSER
   9 #include <sys/shm.h>
  10
  11 #include <sys/param.h>
  12 #include <sys/swap.h>
  13
  14 #ifndef UBSIZE
  15 #define UBSIZE 512
  16 #endif
  17
  18
  19 void KCMMemory::fetchValues()
  20 {
  21   int pagesize = getpagesize();
  22
  23   struct rminfo rmi;
  24   if( sysmp(MP_SAGET, MPSA_RMINFO, &rmi, sizeof(rmi)) == -1 )
  25     return;
  26   memoryInfos[TOTAL_MEM]    = MEMORY(rmi.physmem) * pagesize; // total physical memory (without swaps)
  27   memoryInfos[FREE_MEM]     = MEMORY(rmi.freemem) * pagesize; // total free physical memory (without swaps)
  28   memoryInfos[BUFFER_MEM]   = MEMORY(rmi.bufmem)  * pagesize;
  29
  30
  31   //FIXME: memoryInfos[CACHED_MEM]"
  32   memoryInfos[CACHED_MEM] = NO_MEMORY_INFO; // cached memory in ram
  33
  34   long val;
  35   swapctl(SC_GETSWAPTOT, &val);
  36   memoryInfos[SWAP_MEM]     = MEMORY(val) * UBSIZE; // total size of all swap-partitions
  37
  38   swapctl(SC_GETFREESWAP, &val);
  39   memoryInfos[FREESWAP_MEM] = MEMORY(val) * UBSIZE; // free memory in swap-partitions
  40
  41 #ifndef MPKA_SHMINFO
  42   /* Irix 6.5 (also 6.4?) */
  43   memoryInfos[SHARED_MEM]   = NO_MEMORY_INFO;
  44 #else
  45   FILE *kmem = fopen("/dev/kmem", "r");
  46   if( kmem == 0 ) {
  47     memoryInfos[SHARED_MEM]   = NO_MEMORY_INFO;
  48     return;
  49   }
  50
  51   long shmip = sysmp(MP_KERNADDR, MPKA_SHMINFO);
  52   fseek( kmem, shmip, 0 );
  53   struct shminfo shmi;
  54   fread( &shmi, sizeof(shmi), 1, kmem );
  55
  56   long shmem = sysmp(MP_KERNADDR, MPKA_SHM);
  57
  58   val = 0;
  59   long pos;
  60   struct shmid_ds shmid;
  61   for( int i=0 ; i<shmi.shmmni ; i++ ) {
  62     fseek( kmem, shmem, 0 );
  63         shmem += sizeof(shmem);
  64     fread( &pos, sizeof(shmem), 1, kmem );
  65         if(pos != 0) {
  66       fseek( kmem, pos, 0 );
  67       fread( &shmid, sizeof(shmid), 1, kmem );
  68       val += shmid.shm_segsz;
  69     }
  70   }
  71   memoryInfos[SHARED_MEM]   = MEMORY(val);
  72
  73   fclose(kmem);
  74 #endif
  75 }