From ed80e5df8c718fc2321904db1b81604d1ed33444 Mon Sep 17 00:00:00 2001
From: ben <ben@nagy.contact>
Date: Sat, 3 May 2025 14:59:49 -0700
Subject: suckless
---
config/suckless/slstatus/components/cpu.c | 164 ++++++++++++++++++++++++++++++
1 file changed, 164 insertions(+)
create mode 100644 config/suckless/slstatus/components/cpu.c
(limited to 'config/suckless/slstatus/components/cpu.c')
diff --git a/config/suckless/slstatus/components/cpu.c b/config/suckless/slstatus/components/cpu.c
new file mode 100644
index 0000000..9e28003
--- /dev/null
+++ b/config/suckless/slstatus/components/cpu.c
@@ -0,0 +1,164 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "../util.h"
+
+#if defined(__linux__)
+ 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 *
+ cpu_perc(void)
+ {
+ static long double a[7];
+ long double b[7], sum;
+
+ memcpy(b, a, sizeof(b));
+ /* cpu user nice system idle iowait irq softirq */
+ 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 (b[0] == 0) {
+ return NULL;
+ }
+
+ sum = (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]);
+
+ if (sum == 0) {
+ return NULL;
+ }
+
+ return bprintf("%d", (int)(100 *
+ ((b[0] + b[1] + b[2] + b[5] + b[6]) -
+ (a[0] + a[1] + a[2] + a[5] + a[6])) / sum));
+ }
+#elif defined(__OpenBSD__)
+ #include <sys/param.h>
+ #include <sys/sched.h>
+ #include <sys/sysctl.h>
+
+ 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);
+ }
+
+ const char *
+ cpu_perc(void)
+ {
+ int mib[2];
+ static uintmax_t a[CPUSTATES];
+ uintmax_t b[CPUSTATES], sum;
+ size_t size;
+
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_CPTIME;
+
+ size = sizeof(a);
+
+ memcpy(b, a, sizeof(b));
+ if (sysctl(mib, 2, &a, &size, NULL, 0) < 0) {
+ warn("sysctl 'KERN_CPTIME':");
+ return NULL;
+ }
+ if (b[0] == 0) {
+ return NULL;
+ }
+
+ sum = (a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR] + a[CP_IDLE]) -
+ (b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR] + b[CP_IDLE]);
+
+ if (sum == 0) {
+ return NULL;
+ }
+
+ return bprintf("%d", 100 *
+ ((a[CP_USER] + a[CP_NICE] + a[CP_SYS] +
+ a[CP_INTR]) -
+ (b[CP_USER] + b[CP_NICE] + b[CP_SYS] +
+ b[CP_INTR])) / sum);
+ }
+#elif defined(__FreeBSD__)
+ #include <sys/param.h>
+ #include <sys/sysctl.h>
+ #include <devstat.h>
+
+ 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 *
+ cpu_perc(void)
+ {
+ size_t size;
+ static long a[CPUSTATES];
+ long b[CPUSTATES], sum;
+
+ size = sizeof(a);
+ memcpy(b, a, sizeof(b));
+ if (sysctlbyname("kern.cp_time", &a, &size, NULL, 0) == -1
+ || !size) {
+ warn("sysctlbyname 'kern.cp_time':");
+ return NULL;
+ }
+ if (b[0] == 0) {
+ return NULL;
+ }
+
+ sum = (a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR] + a[CP_IDLE]) -
+ (b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR] + b[CP_IDLE]);
+
+ if (sum == 0) {
+ return NULL;
+ }
+
+ return bprintf("%d", 100 *
+ ((a[CP_USER] + a[CP_NICE] + a[CP_SYS] +
+ a[CP_INTR]) -
+ (b[CP_USER] + b[CP_NICE] + b[CP_SYS] +
+ b[CP_INTR])) / sum);
+ }
+#endif
--
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