compiler2/Stopwatch.cc

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Copyright (c) 2000-2014 Ericsson Telecom AB
   3 // All rights reserved. This program and the accompanying materials
   4 // are made available under the terms of the Eclipse Public License v1.0
   5 // which accompanies this distribution, and is available at
   6 // http://www.eclipse.org/legal/epl-v10.html
   7 ///////////////////////////////////////////////////////////////////////////////
   8 #include "Stopwatch.hh"
   9 #include "error.h"
  10 #include <stdio.h>
  11
  12 Stopwatch::Stopwatch(const char *name)
  13 : tv_start()
  14 , my_name(name)
  15 {
  16   gettimeofday(&tv_start, 0);
  17 }
  18
  19 Stopwatch::~Stopwatch()
  20 {
  21   struct timeval tv_end;
  22   gettimeofday(&tv_end, 0);
  23
  24   struct timeval tv_diff = {
  25     tv_end.tv_sec  - tv_start.tv_sec,
  26     tv_end.tv_usec - tv_start.tv_usec
  27   };
  28   if (tv_diff.tv_usec < 0) {
  29     --tv_diff.tv_sec;
  30     tv_diff.tv_usec += 1000000;
  31   }
  32
  33   NOTIFY("%s took %ld.%06ld sec", my_name,
  34     (long)tv_diff.tv_sec, (long)tv_diff.tv_usec);
  35 }