gnome-system-monitor r2554 - trunk/src

[bdejean svn gnome org]

Author: bdejean
Date: Tue Jan 20 00:19:20 2009
New Revision: 2554
URL: http://svn.gnome.org/viewvc/gnome-system-monitor?rev=2554&view=rev

Log:
Avoid 0 division.
Closes #557099.


Modified:
   trunk/src/smooth_refresh.cpp

Modified: trunk/src/smooth_refresh.cpp
==============================================================================
--- trunk/src/smooth_refresh.cpp	(original)
+++ trunk/src/smooth_refresh.cpp	Tue Jan 20 00:19:20 2009
@@ -26,13 +26,16 @@
   glibtop_cpu cpu;
   glibtop_proc_time proctime;
   guint64 elapsed;
-  unsigned usage;
+  unsigned usage = PCPU_LO;
 
   glibtop_get_cpu (&cpu);
   elapsed = cpu.total - this->last_total_time;
 
-  glibtop_get_proc_time(&proctime, getpid());
-  usage = (proctime.rtime - this->last_cpu_time) * 100 / elapsed;
+  if (elapsed) { // avoid division by 0
+    glibtop_get_proc_time(&proctime, getpid());
+    usage = (proctime.rtime - this->last_cpu_time) * 100 / elapsed;
+  }
+
   usage = CLAMP(usage, 0, 100);
 
   this->last_total_time = cpu.total;