git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@9633 f3b2605a-c512-4ea7-a41b-209d697bcdaa

tools/phonon/timer.cpp

@@ -0,0 +1,41 @@
+#include "timer.h"
+
+Timer::Timer()
+{
+  flag = 0;
+  start();
+return;
+}
+
+void Timer::start()
+{
+ t1 = clock();
+ flag |= 1;
+
+return;
+}
+
+void Timer::stop()
+{
+  if ( flag&1 ) {
+    t2 = clock();
+    flag |= 2;
+  }
+return;
+}
+
+void Timer::print()
+{
+  if ( (flag&3) != 3) return;
+
+  cpu_time_used = ((double) (t2 - t1)) / CLOCKS_PER_SEC;
+  printf("Total CPU time used: %g seconds.\n", cpu_time_used);
+
+return;
+}
+
+double Timer::elapse()
+{
+  if ( (flag&3) != 3) return 0.;
+  else return ((double) (t2 - t1)) / CLOCKS_PER_SEC;
+}