From 859a7690a6472ca6d700d29693d986125d11e4b6 Mon Sep 17 00:00:00 2001 From: Mateusz Poszwa Date: Thu, 28 Jun 2012 11:22:00 +0200 Subject: Avoid division by zero when calculating CPU usage. --- src/print_cpu_usage.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src') 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 -- cgit v1.2.3