wmmemload/src/mem_solaris.c

   1 /*
   2  * mem_solaric.c - module to get memory/swap usages in percent, for Solaris
   3  *
   4  * Copyright (c) 2001 Jonathan Lang <lang@synopsys.com>
   5  * Copyright (c) 2002 Seiichi SATO <ssato@sh.rim.or.jp>
   6  *
   7  * licensed under the GPL
   8  */
   9
  10 #ifdef HAVE_CONFIG_H
  11 #include "config.h"
  12 #endif
  13
  14 #include <stdio.h>
  15 #include <unistd.h>
  16 #include <stdlib.h>
  17 #include "mem.h"
  18
  19 #include <sys/stat.h>
  20 #include <sys/swap.h>
  21
  22 /* initialize function */
  23 void mem_init(void)
  24 {
  25         /* solaris doesn't need initialization */
  26         return;
  27 }
  28
  29 /* return memory/swap usage in percent 0 to 100 */
  30 void mem_getusage(int *per_mem, int *per_swap, const struct mem_options *opts)
  31 {
  32         static int mem_total;
  33         static int mem_free;
  34         static int swap_total;
  35         static int swap_free;
  36         struct anoninfo anon;
  37
  38         /* get mem usage */
  39         mem_total = sysconf(_SC_PHYS_PAGES);
  40         mem_free = sysconf(_SC_AVPHYS_PAGES);
  41
  42         /* get swap usage */
  43         if (swapctl(SC_AINFO, &anon) == -1)
  44                 exit(1);
  45         swap_total = anon.ani_max;
  46         swap_free = anon.ani_max - anon.ani_resv;
  47
  48         /* calc mem/swap usage in percent */
  49         *per_mem = 100 * (1 - ((double) mem_free / (double) mem_total));
  50         *per_swap = 100 * (1 - ((double) swap_free / (double) swap_total));
  51 }