X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/0bc6855741cc9fbdf5c3ffd0d9cb983b0a66f635..10bdf01b715dcc994f3fe32a6881d5e0b2613a6c:/components/cpu.c

diff --git a/components/cpu.c b/components/cpu.c
index 2e910d9..9e28003 100644
--- a/components/cpu.c
+++ b/components/cpu.c
@@ -1,51 +1,52 @@
 /* See LICENSE file for copyright and license details. */
-#include <errno.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <string.h>
 
 #include "../util.h"
 
 #if defined(__linux__)
-	#include <inttypes.h>
-	#include <stdint.h>
-
 	const char *
 	cpu_freq(void)
 	{
-		uint64_t freq;
+		uintmax_t freq;
 
 		/* in kHz */
-		if (pscanf("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq",
-		            "%"SCNu64, &freq) != 1) {
+		if (pscanf("/sys/devices/system/cpu/cpu0/cpufreq/"
+		           "scaling_cur_freq", "%ju", &freq) != 1) {
 			return NULL;
 		}
 
-		return fmt_human_10(freq * 1000, "Hz");
+		return fmt_human(freq * 1000, 1000);
 	}
 
 	const char *
 	cpu_perc(void)
 	{
-		static int valid;
 		static long double a[7];
-		long double b[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) {
+		           &a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6])
+		    != 7) {
+			return NULL;
+		}
+		if (b[0] == 0) {
 			return NULL;
 		}
-		if (!valid) {
-			valid = 1;
+
+		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 *
+		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])) /
-		               ((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]))));
+		                (a[0] + a[1] + a[2] + a[5] + a[6])) / sum));
 	}
 #elif defined(__OpenBSD__)
 	#include <sys/param.h>
@@ -69,16 +70,15 @@
 			return NULL;
 		}
 
-		return fmt_human_10((size_t)freq * 1000 * 1000, "Hz");
+		return fmt_human(freq * 1E6, 1000);
 	}
 
 	const char *
 	cpu_perc(void)
 	{
 		int mib[2];
-		static int valid;
-		static long int a[CPUSTATES];
-		long int b[CPUSTATES];
+		static uintmax_t a[CPUSTATES];
+		uintmax_t b[CPUSTATES], sum;
 		size_t size;
 
 		mib[0] = CTL_KERN;
@@ -91,17 +91,74 @@
 			warn("sysctl 'KERN_CPTIME':");
 			return NULL;
 		}
-		if (!valid) {
-			valid = 1;
+		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])) /
-		               ((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])));
+		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