const char *
swap_used(void)
{
long total, free, cached;
if (get_swap_info(&total, &free, &cached)) {
return NULL;
}
return fmt_human((total - free - cached) * 1024, 1024);
}
const char *
swap_free(void)
{
long free;
if (get_swap_info(NULL, &free, NULL)) {
return NULL;
}
return fmt_human(free * 1024, 1024);
}
const char *
swap_total(void)
{
long total;
if (get_swap_info(&total, NULL, NULL)) {
return NULL;
}
return fmt_human(total * 1024, 1024);
}
const char *
swap_free(void)
{
int total, used;
if (getstats(&total, &used)) {
return NULL;
}
return fmt_human((total - used) * 1024, 1024);
}
const char *
swap_used(void)
{
int total, used;
if (getstats(&total, &used)) {
return NULL;
}
return fmt_human(used * 1024, 1024);
}
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 *
cpu_freq(void)
{
uintmax_t freq;
/* in kHz */
if (pscanf("/sys/devices/system/cpu/cpu0/cpufreq/"
"scaling_cur_freq", "%ju", &freq) != 1) {
return NULL;
}
return fmt_human(freq * 1000, 1000);
}
const char *
ram_used(void)
{
struct uvmexp uvmexp;
if (load_uvmexp(&uvmexp)) {
return fmt_human(pagetok(uvmexp.active,
uvmexp.pageshift) * 1024,
1024);
}
return NULL;
}
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_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 *
cpu_freq(void)
{
int freq;
size_t size;
size = sizeof(freq);
/* in MHz */
if (sysctlbyname("hw.clockrate", &freq, &size, NULL, 0) == -1
|| !size) {
warn("sysctlbyname 'hw.clockrate':");
return NULL;
}
return fmt_human(freq * 1E6, 1000);
}
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\n"
"Buffers: %ju kB\n"
"Cached: %ju kB\n",
&total, &free, &buffers, &buffers, &cached) != 5) {
return NULL;
}
return fmt_human((total - free - buffers - cached) * 1024,
1024);
}
const char *
cpu_freq(void)
{
int freq, mib[2];
size_t size;
mib[0] = CTL_HW;
mib[1] = HW_CPUSPEED;
size = sizeof(freq);
/* in MHz */
if (sysctl(mib, 2, &freq, &size, NULL, 0) < 0) {
warn("sysctl 'HW_CPUSPEED':");
return NULL;
}
return fmt_human(freq * 1E6, 1000);
}
