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/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include "../slstatus.h"
#include "../util.h"
#if defined(__linux__)
#include <stdint.h>
const char *
ram_perc(const char *unused)
{
uintmax_t total, free, buffers, cached;
int percent;
if (pscanf("/proc/meminfo",
"MemTotal: %ju kB\n"
"MemFree: %ju kB\n"
"MemAvailable: %ju kB\n"
"Buffers: %ju kB\n"
"Cached: %ju kB\n",
&total, &free, &buffers, &buffers, &cached) != 5)
return NULL;
if (total == 0)
return NULL;
percent = 100 * ((total - free) - (buffers + cached)) / total;
return bprintf("%d", percent);
}
#elif defined(__OpenBSD__)
#include <stdlib.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <unistd.h>
#define LOG1024 10
#define pagetok(size, pageshift) (size_t)(size << (pageshift - LOG1024))
inline int
load_uvmexp(struct uvmexp *uvmexp)
{
int uvmexp_mib[] = {CTL_VM, VM_UVMEXP};
size_t size;
size = sizeof(*uvmexp);
if (sysctl(uvmexp_mib, 2, uvmexp, &size, NULL, 0) >= 0)
return 1;
return 0;
}
const char *
ram_perc(const char *unused)
{
struct uvmexp uvmexp;
int percent;
if (!load_uvmexp(&uvmexp))
return NULL;
percent = uvmexp.active * 100 / uvmexp.npages;
return bprintf("%d", percent);
}
#elif defined(__FreeBSD__)
#include <sys/sysctl.h>
#include <sys/vmmeter.h>
#include <unistd.h>
#include <vm/vm_param.h>
const char *
ram_perc(const char *unused) {
unsigned int npages;
unsigned int active;
size_t len;
len = sizeof(npages);
if (sysctlbyname("vm.stats.vm.v_page_count",
&npages, &len, NULL, 0) < 0 || !len)
return NULL;
if (sysctlbyname("vm.stats.vm.v_active_count",
&active, &len, NULL, 0) < 0 || !len)
return NULL;
return bprintf("%d", active * 100 / npages);
}
#endif
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