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authorJasper Lievisse Adriaanse <jasper@humppa.nl>2012-04-27 17:32:46 +0200
committerMichael Stapelberg <michael@stapelberg.de>2012-04-29 11:13:06 +0200
commit75a741484e10d98658968b80328d1e003e191599 (patch)
treedea3e5a245ba94c52eaf69cea003131f660b4f05
parent6eac8bee5810a5f944406cd5b6ddc62e463f495d (diff)
Fix CPU usage on OpenBSD. Currently only takes the first cpu into account, but works fine otherwise.
-rw-r--r--src/print_cpu_usage.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/src/print_cpu_usage.c b/src/print_cpu_usage.c
index 7fdd11c..7113eae 100644
--- a/src/print_cpu_usage.c
+++ b/src/print_cpu_usage.c
@@ -6,7 +6,8 @@
#include <yajl/yajl_gen.h>
#include <yajl/yajl_version.h>
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
+#include <sys/param.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/dkstat.h>
@@ -42,12 +43,26 @@ void print_cpu_usage(yajl_gen json_gen, char *buffer, const char *format) {
diff_usage = (1000 * (diff_total - diff_idle)/diff_total + 5)/10;
prev_total = curr_total;
prev_idle = curr_idle;
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__OpenBSD__)
+
+#if defined(__FreeBSD__)
size_t size;
long cp_time[CPUSTATES];
size = sizeof cp_time;
if (sysctlbyname("kern.cp_time", &cp_time, &size, NULL, 0) < 0)
goto error;
+#else
+ /* This information is taken from the boot cpu, any other cpus are currently ignored. */
+ long cp_time[CPUSTATES];
+ int mib[2];
+ size_t size = sizeof(cp_time);
+
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_CPTIME;
+
+ if (sysctl(mib, 2, cp_time, &size, NULL, 0))
+ goto error;
+#endif
curr_user = cp_time[CP_USER];
curr_nice = cp_time[CP_NICE];