157 lines
2.9 KiB
C
157 lines
2.9 KiB
C
/* See LICENSE file for copyright and license details. */
|
|
#include <stdio.h>
|
|
|
|
#include "../util.h"
|
|
|
|
#if defined(__linux__)
|
|
#include <stdint.h>
|
|
|
|
const char *
|
|
ram_free(void)
|
|
{
|
|
uintmax_t free;
|
|
|
|
if (pscanf("/proc/meminfo",
|
|
"MemTotal: %ju kB\n"
|
|
"MemFree: %ju kB\n"
|
|
"MemAvailable: %ju kB\n",
|
|
&free, &free, &free) != 3) {
|
|
return NULL;
|
|
}
|
|
|
|
return fmt_human(free * 1024, 1024);
|
|
}
|
|
|
|
const char *
|
|
ram_perc(void)
|
|
{
|
|
uintmax_t total, free, buffers, cached;
|
|
|
|
if (pscanf("/proc/meminfo",
|
|
"MemTotal: %ju kB\n"
|
|
"MemFree: %ju kB\n"
|
|
"MemAvailable: %ju kB\nBuffers: %ju kB\n"
|
|
"Cached: %ju kB\n",
|
|
&total, &free, &buffers, &buffers, &cached) != 5) {
|
|
return NULL;
|
|
}
|
|
|
|
if (total == 0) {
|
|
return NULL;
|
|
}
|
|
|
|
return bprintf("%d", 100 * ((total - free) -
|
|
(buffers + cached)) / total);
|
|
}
|
|
|
|
const char *
|
|
ram_total(void)
|
|
{
|
|
uintmax_t total;
|
|
|
|
if (pscanf("/proc/meminfo", "MemTotal: %ju kB\n",
|
|
&total) != 1) {
|
|
return NULL;
|
|
}
|
|
|
|
return fmt_human(total * 1024, 1024);
|
|
}
|
|
|
|
const char *
|
|
ram_used(void)
|
|
{
|
|
uintmax_t total, free, buffers, cached;
|
|
|
|
if (pscanf("/proc/meminfo",
|
|
"MemTotal: %ju kB\n"
|
|
"MemFree: %ju kB\n"
|
|
"MemAvailable: %ju kB\nBuffers: %ju kB\n"
|
|
"Cached: %ju kB\n",
|
|
&total, &free, &buffers, &buffers, &cached) != 5) {
|
|
return NULL;
|
|
}
|
|
|
|
return fmt_human((total - free - buffers - cached) * 1024,
|
|
1024);
|
|
}
|
|
#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_free(void)
|
|
{
|
|
struct uvmexp uvmexp;
|
|
int free_pages;
|
|
|
|
if (load_uvmexp(&uvmexp)) {
|
|
free_pages = uvmexp.npages - uvmexp.active;
|
|
return fmt_human(pagetok(free_pages, uvmexp.pageshift) *
|
|
1024, 1024);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
const char *
|
|
ram_perc(void)
|
|
{
|
|
struct uvmexp uvmexp;
|
|
int percent;
|
|
|
|
if (load_uvmexp(&uvmexp)) {
|
|
percent = uvmexp.active * 100 / uvmexp.npages;
|
|
return bprintf("%d", percent);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
const char *
|
|
ram_total(void)
|
|
{
|
|
struct uvmexp uvmexp;
|
|
|
|
if (load_uvmexp(&uvmexp)) {
|
|
return fmt_human(pagetok(uvmexp.npages,
|
|
uvmexp.pageshift) * 1024,
|
|
1024);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
const char *
|
|
ram_used(void)
|
|
{
|
|
struct uvmexp uvmexp;
|
|
|
|
if (load_uvmexp(&uvmexp)) {
|
|
return fmt_human(pagetok(uvmexp.active,
|
|
uvmexp.pageshift) * 1024,
|
|
1024);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
#endif
|