From 4506e0cf4e4eba78d7685a4314a6882878cc9b66 Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Thu, 22 Oct 2009 11:18:51 +0200
Subject: Support for multiple CPU cores

---
 statusbar.c | 67 ++++++++++++++++++++++++++++++++++---------------------------
 1 file changed, 37 insertions(+), 30 deletions(-)

diff --git a/statusbar.c b/statusbar.c
index ba36dc8..81e37bf 100644
--- a/statusbar.c
+++ b/statusbar.c
@@ -3,19 +3,21 @@
  *
  * Needs libacpi-dev and libcpufreq-dev
  *
- * Copyright (c) 2007 T. Klauser <tklauser@distanz.ch>
+ * Copyright (c) 2007-2009 T. Klauser <tklauser@distanz.ch>
  */
 
 #define _GNU_SOURCE
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 #include <time.h>
+
 #include <sys/sysinfo.h>
 #include <libacpi.h>
 #include <cpufreq.h>
 
-#define DATE_STR "%a %Y-%m-%d %H:%M"
+#define DATE_STR "%Y-%m-%d %H:%M"
 #define HOUR 3600			/* sec per hour */
 #define MINUTE 60			/* sec per min */
 #define LOADS_SCALE 65536.0
@@ -26,8 +28,7 @@ int main(int argc, char **argv)
 	struct tm tim;
 	char str[25];
 	int temp;
-	unsigned long freq, tmp_freq;
-	long up, uph, upm;
+	long i, n_cpu, up, uph, upm;
 	struct sysinfo info;
 	global_t g;
 
@@ -55,6 +56,7 @@ int main(int argc, char **argv)
 	else
 		printf("n/a%% | ");
 
+	/* TODO: Use sysfs! */
 	/* 3) Temperature */
 	temp = g.temperature;
 	if (temp < 0 || temp == NOT_SUPPORTED)
@@ -62,33 +64,38 @@ int main(int argc, char **argv)
 	else
 		printf("%d C | ", temp);
 
-	/* 4) Current CPU frequency */
-	freq = cpufreq_get_freq_kernel(0);
-	if (freq) {
-		/* Taken from cpufrequtils */
-		if (freq > 1000000) {
-			tmp_freq = freq % 10000;
-			if (tmp_freq >= 5000)
-				freq += 10000;
-			printf("%u.%02u G", ((unsigned int) freq / 1000000),
-					((unsigned int) (freq % 1000000) / 10000));
-		} else if (freq > 100000) {
-			tmp_freq = freq % 1000;
-			if (tmp_freq >= 500)
-				freq += 1000;
-			printf("%u M", ((unsigned int) freq / 1000));
-		} else if (freq > 1000) {
-			tmp_freq = freq % 100;
-			if (tmp_freq >= 50)
-				freq += 100;
-			printf("%u.%01u M", ((unsigned int) freq / 1000),
-					((unsigned int) (freq % 1000) / 100));
-		} else
-			printf("%lu k", freq);
+	/* 4) Current CPU frequency for each core */
+	n_cpu = sysconf(_SC_NPROCESSORS_CONF);
+	for (i = 0; i < n_cpu; i++) {
+		unsigned long freq = cpufreq_get_freq_kernel(i);
 
-		printf("Hz | ");
-	} else
-		printf("n/a | ");
+		if (freq) {
+			unsigned long tmp_freq;
+			/* Taken from cpufrequtils */
+				if (freq > 1000000) {
+				tmp_freq = freq % 10000;
+				if (tmp_freq >= 5000)
+					freq += 10000;
+				printf("%u.%02u G", ((unsigned int) freq / 1000000),
+						((unsigned int) (freq % 1000000) / 10000));
+			} else if (freq > 100000) {
+				tmp_freq = freq % 1000;
+				if (tmp_freq >= 500)
+					freq += 1000;
+				printf("%u M", ((unsigned int) freq / 1000));
+			} else if (freq > 1000) {
+				tmp_freq = freq % 100;
+				if (tmp_freq >= 50)
+					freq += 100;
+				printf("%u.%01u M", ((unsigned int) freq / 1000),
+						((unsigned int) (freq % 1000) / 100));
+			} else
+				printf("%lu k", freq);
+
+			printf("Hz | ");
+		} else
+			printf("n/a | ");
+	}
 
 	/* 5) Uptime and load average */
 	if (sysinfo(&info) == 0) {
-- 
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