diff options
| author | Mateusz Poszwa <old4@o2.pl> | 2012-06-28 11:22:00 +0200 |
|---|---|---|
| committer | Michael Stapelberg <michael@stapelberg.de> | 2012-06-28 12:05:01 +0200 |
| commit | 859a7690a6472ca6d700d29693d986125d11e4b6 (patch) | |
| tree | ea3007e28cf8c8da8aa48cec14ad6a4b6c33be8b | |
| parent | 10ed9efff45c3d267f0602f1f2310d2a35b18853 (diff) | |
Avoid division by zero when calculating CPU usage.
| -rw-r--r-- | src/print_cpu_usage.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/print_cpu_usage.c b/src/print_cpu_usage.c index 7820840..ed17db3 100644 --- a/src/print_cpu_usage.c +++ b/src/print_cpu_usage.c @@ -40,7 +40,7 @@ void print_cpu_usage(yajl_gen json_gen, char *buffer, const char *format) { curr_total = curr_user + curr_nice + curr_system + curr_idle; diff_idle = curr_idle - prev_idle; diff_total = curr_total - prev_total; - diff_usage = (1000 * (diff_total - diff_idle)/diff_total + 5)/10; + diff_usage = (diff_total ? (1000 * (diff_total - diff_idle)/diff_total + 5)/10 : 0); prev_total = curr_total; prev_idle = curr_idle; #elif defined(__FreeBSD__) || defined(__OpenBSD__) @@ -71,7 +71,7 @@ void print_cpu_usage(yajl_gen json_gen, char *buffer, const char *format) { curr_total = curr_user + curr_nice + curr_system + curr_idle; diff_idle = curr_idle - prev_idle; diff_total = curr_total - prev_total; - diff_usage = (1000 * (diff_total - diff_idle)/diff_total + 5)/10; + diff_usage = (diff_total ? (1000 * (diff_total - diff_idle)/diff_total + 5)/10 : 0); prev_total = curr_total; prev_idle = curr_idle; #else |