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- /* See LICENSE file for copyright and license details. */
- #if defined(__linux__)
- #include <stdio.h>
- #include <string.h>
-
- #include "../util.h"
-
- const char *
- cpu_freq(void)
- {
- int freq;
-
- return (pscanf("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq",
- "%i", &freq) == 1) ?
- bprintf("%d", (freq + 500) / 1000) : NULL;
- }
-
- const char *
- cpu_perc(void)
- {
- int perc;
- static long double a[7];
- static int valid;
- long double b[7];
-
- memcpy(b, a, sizeof(b));
- if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2],
- &a[3], &a[4], &a[5], &a[6]) != 7) {
- return NULL;
- }
- if (!valid) {
- valid = 1;
- return NULL;
- }
-
- perc = 100 * ((b[0]+b[1]+b[2]+b[5]+b[6]) - (a[0]+a[1]+a[2]+a[5]+a[6])) /
- ((b[0]+b[1]+b[2]+b[3]+b[4]+b[5]+b[6]) - (a[0]+a[1]+a[2]+a[3]+a[4]+a[5]+a[6]));
-
- return bprintf("%d", perc);
- }
-
- const char *
- cpu_iowait(void)
- {
- int perc;
- static int valid;
- static long double a[7];
- long double b[7];
-
- memcpy(b, a, sizeof(b));
- if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2],
- &a[3], &a[4], &a[5], &a[6]) != 7) {
- return NULL;
- }
- if (!valid) {
- valid = 1;
- return NULL;
- }
-
- perc = 100 * ((b[4]) - (a[4])) /
- ((b[0]+b[1]+b[2]+b[3]+b[4]+b[5]+b[6]) - (a[0]+a[1]+a[2]+a[3]+a[4]+a[5]+a[6]));
-
- return bprintf("%d", perc);
- }
- #endif
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