+ struct timeval curr_time_tv = { 0 },
+ delta_time_tv = { 0 };
+
+#ifdef HAVE_GETTIMEOFDAY
+ gettimeofday( &curr_time_tv, NULL );
+#else /* ! HAVE_GETTIMEOFDAY */
+ time( &curr_time_tv.tv_sec );
+ curr_time_tv.tv_usec = 0;
+#endif /* ! HAVE_GETTIMEOFDAY */
+
+ /* delta_time = tmp_time - start_time */
+ delta_time_tv.tv_sec = curr_time_tv.tv_sec - start_time_tv.tv_sec;
+ delta_time_tv.tv_usec = curr_time_tv.tv_usec - start_time_tv.tv_usec;
+ if ( delta_time_tv.tv_usec < 0 ) {
+ delta_time_tv.tv_sec--;
+ delta_time_tv.tv_usec += 1000000;
+ }