src/unittest/cprintftime.cc

   1 /*
   2  * Copyright (c) 2002-2005 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * Authors: Nathan Binkert
  29  */
  30
  31 #include <iostream>
  32 #include <list>
  33 #include <sstream>
  34 #include <string>
  35
  36 #include "base/cprintf.hh"
  37
  38 using namespace std;
  39
  40 volatile int stop = false;
  41
  42 void
  43 handle_alarm(int signal)
  44 {
  45     stop = true;
  46 }
  47
  48 void
  49 do_test(int seconds)
  50 {
  51     stop = false;
  52     alarm(seconds);
  53 }
  54
  55 int
  56 main()
  57 {
  58     stringstream result;
  59     int iterations = 0;
  60
  61     signal(SIGALRM, handle_alarm);
  62
  63     do_test(10);
  64     while (!stop) {
  65         stringstream result;
  66         ccprintf(result,
  67                  "this is a %s of %d iterations %3.2f %#x\n",
  68                  "test", iterations, 51.934, &result);
  69
  70         iterations += 1;
  71     }
  72
  73     cprintf("completed %d iterations of ccprintf in 10s, %f iterations/s\n",
  74             iterations, iterations / 10.0);
  75
  76     do_test(10);
  77     while (!stop) {
  78         char result[1024];
  79         sprintf(result,
  80                  "this is a %s of %d iterations %3.2f %#x\n",
  81                  "test", iterations, 51.934, &result);
  82
  83         iterations += 1;
  84     }
  85
  86     cprintf("completed %d iterations of sprintf in 10s, %f iterations/s\n",
  87             iterations, iterations / 10.0);
  88
  89     return 0;
  90 }