128 lines
2.5 KiB
C
128 lines
2.5 KiB
C
/* See LICENSE file for copyright and license details. */
|
|
#include <stdio.h>
|
|
|
|
#include "../util.h"
|
|
|
|
#if defined(__linux__)
|
|
const char *
|
|
ram_free(void)
|
|
{
|
|
long free;
|
|
|
|
return (pscanf("/proc/meminfo", "MemFree: %ld kB\n", &free) == 1) ?
|
|
bprintf("%f", (float)free / 1024 / 1024) : NULL;
|
|
}
|
|
|
|
const char *
|
|
ram_perc(void)
|
|
{
|
|
long total, free, buffers, cached;
|
|
|
|
return (pscanf("/proc/meminfo",
|
|
"MemTotal: %ld kB\n"
|
|
"MemFree: %ld kB\n"
|
|
"MemAvailable: %ld kB\nBuffers: %ld kB\n"
|
|
"Cached: %ld kB\n",
|
|
&total, &free, &buffers, &buffers, &cached) == 5) ?
|
|
bprintf("%d", 100 * ((total - free) - (buffers + cached)) / total) :
|
|
NULL;
|
|
}
|
|
|
|
const char *
|
|
ram_total(void)
|
|
{
|
|
long total;
|
|
|
|
return (pscanf("/proc/meminfo", "MemTotal: %ld kB\n", &total) == 1) ?
|
|
bprintf("%f", (float)total / 1024 / 1024) : NULL;
|
|
}
|
|
|
|
const char *
|
|
ram_used(void)
|
|
{
|
|
long total, free, buffers, cached;
|
|
|
|
return (pscanf("/proc/meminfo",
|
|
"MemTotal: %ld kB\n"
|
|
"MemFree: %ld kB\n"
|
|
"MemAvailable: %ld kB\nBuffers: %ld kB\n"
|
|
"Cached: %ld kB\n",
|
|
&total, &free, &buffers, &buffers, &cached) == 5) ?
|
|
bprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024) :
|
|
NULL;
|
|
}
|
|
#elif defined(__OpenBSD__)
|
|
#include <sys/types.h>
|
|
#include <sys/sysctl.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
inline int
|
|
load_uvmexp(struct uvmexp *uvmexp)
|
|
{
|
|
int uvmexp_mib[] = {CTL_VM, VM_UVMEXP};
|
|
size_t size;
|
|
|
|
size = sizeof(*uvmexp);
|
|
|
|
return sysctl(uvmexp_mib, 2, uvmexp, &size, NULL, 0) >= 0 ? 1 : 0;
|
|
}
|
|
|
|
const char *
|
|
ram_free(void)
|
|
{
|
|
struct uvmexp uvmexp;
|
|
float free;
|
|
int free_pages;
|
|
|
|
if (load_uvmexp(&uvmexp)) {
|
|
free_pages = uvmexp.npages - uvmexp.active;
|
|
free = (double) (free_pages * uvmexp.pagesize) / 1024 / 1024 / 1024;
|
|
return bprintf("%f", free);
|
|
}
|
|
|
|
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;
|
|
float total;
|
|
|
|
if (load_uvmexp(&uvmexp)) {
|
|
total = (double) (uvmexp.npages * uvmexp.pagesize) / 1024 / 1024 / 1024;
|
|
return bprintf("%f", total);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
const char *
|
|
ram_used(void)
|
|
{
|
|
struct uvmexp uvmexp;
|
|
float used;
|
|
|
|
if (load_uvmexp(&uvmexp)) {
|
|
used = (double) (uvmexp.active * uvmexp.pagesize) / 1024 / 1024 / 1024;
|
|
return bprintf("%f", used);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
#endif
|