77 lines
1.3 KiB
C
77 lines
1.3 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "../../util.h"
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inline int
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load_uvmexp(struct uvmexp *uvmexp)
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{
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int uvmexp_mib[] = {CTL_VM, VM_UVMEXP};
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size_t size;
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size = sizeof(*uvmexp);
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return sysctl(uvmexp_mib, 2, uvmexp, &size, NULL, 0) >= 0 ? 1 : 0;
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}
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const char *
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ram_free(void)
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{
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struct uvmexp uvmexp;
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float free;
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int free_pages;
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if (load_uvmexp(&uvmexp)) {
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free_pages = uvmexp.npages - uvmexp.active;
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free = (double) (free_pages * uvmexp.pagesize) / 1024 / 1024 / 1024;
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return bprintf("%f", free);
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}
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return NULL;
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}
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const char *
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ram_perc(void)
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{
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struct uvmexp uvmexp;
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int percent;
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if (load_uvmexp(&uvmexp)) {
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percent = uvmexp.active * 100 / uvmexp.npages;
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return bprintf("%d", percent);
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}
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return NULL;
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}
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const char *
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ram_total(void)
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{
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struct uvmexp uvmexp;
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float total;
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if (load_uvmexp(&uvmexp)) {
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total = (double) (uvmexp.npages * uvmexp.pagesize) / 1024 / 1024 / 1024;
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return bprintf("%f", total);
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}
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return NULL;
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}
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const char *
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ram_used(void)
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{
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struct uvmexp uvmexp;
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float used;
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if (load_uvmexp(&uvmexp)) {
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used = (double) (uvmexp.active * uvmexp.pagesize) / 1024 / 1024 / 1024;
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return bprintf("%f", used);
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}
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return NULL;
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}
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