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#include <stdio.h>
#include <unistd.h>
#include <sys/sysmp.h>
#include <sys/ipc.h>
// The following define is needed for SGI IRIX 6.2
#define _KMEMUSER
#include <sys/shm.h>
#include <sys/param.h>
#include <sys/swap.h>
#ifndef UBSIZE
#define UBSIZE 512
#endif
void KCMMemory::fetchValues()
{
int pagesize = getpagesize();
struct rminfo rmi;
if( sysmp(MP_SAGET, MPSA_RMINFO, &rmi, sizeof(rmi)) == -1 )
return;
memoryInfos[TOTAL_MEM] = MEMORY(rmi.physmem) * pagesize; // total physical memory (without swaps)
memoryInfos[FREE_MEM] = MEMORY(rmi.freemem) * pagesize; // total free physical memory (without swaps)
memoryInfos[BUFFER_MEM] = MEMORY(rmi.bufmem) * pagesize;
//FIXME: memoryInfos[CACHED_MEM]"
memoryInfos[CACHED_MEM] = NO_MEMORY_INFO; // cached memory in ram
long val;
swapctl(SC_GETSWAPTOT, &val);
memoryInfos[SWAP_MEM] = MEMORY(val) * UBSIZE; // total size of all swap-partitions
swapctl(SC_GETFREESWAP, &val);
memoryInfos[FREESWAP_MEM] = MEMORY(val) * UBSIZE; // free memory in swap-partitions
#ifndef MPKA_SHMINFO
/* Irix 6.5 (also 6.4?) */
memoryInfos[SHARED_MEM] = NO_MEMORY_INFO;
#else
FILE *kmem = fopen("/dev/kmem", "r");
if( kmem == 0 ) {
memoryInfos[SHARED_MEM] = NO_MEMORY_INFO;
return;
}
long shmip = sysmp(MP_KERNADDR, MPKA_SHMINFO);
fseek( kmem, shmip, 0 );
struct shminfo shmi;
fread( &shmi, sizeof(shmi), 1, kmem );
long shmem = sysmp(MP_KERNADDR, MPKA_SHM);
val = 0;
long pos;
struct shmid_ds shmid;
for( int i=0 ; i<shmi.shmmni ; i++ ) {
fseek( kmem, shmem, 0 );
shmem += sizeof(shmem);
fread( &pos, sizeof(shmem), 1, kmem );
if(pos != 0) {
fseek( kmem, pos, 0 );
fread( &shmid, sizeof(shmid), 1, kmem );
val += shmid.shm_segsz;
}
}
memoryInfos[SHARED_MEM] = MEMORY(val);
fclose(kmem);
#endif
}
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