test/oop2/timerclass.c

   1 /*
   2    Copyright © 1997-98, The AROS Development Team. All rights reserved.
   3    $Id$
   4
   5    Desc: Demo of new OOP system
   6    Lang: english
   7 */
   8
   9 #include <sys/time.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12 #include "oop.h"
  13 #include "protos.h"
  14 #include "timerclass.h"
  15
  16 struct TimerData
  17 {
  18     struct timeval start_time;
  19     struct timeval elapsed_time;
  20 };
  21
  22 /* Does dest - src => dest */
  23 VOID SubTime(struct timeval *dest, struct timeval *src)
  24 {
  25     /* Normalize the terms */
  26     while(src->tv_usec > 999999)
  27     {
  28         src->tv_sec++;
  29         src->tv_usec -= 1000000;
  30     }
  31     while(dest->tv_usec > 999999)
  32     {
  33         dest->tv_sec++;
  34         dest->tv_usec -= 1000000;
  35     }
  36
  37     dest->tv_usec -= src->tv_usec;
  38     dest->tv_sec -= src->tv_sec;
  39
  40     if(dest->tv_usec < 0)
  41     {
  42         dest->tv_usec += 1000000;
  43         dest->tv_sec--;
  44     }
  45
  46     return;
  47 }
  48
  49 VOID _Timer_Start(Class *cl, Object *o, Msg msg)
  50 {
  51     struct TimerData *data = INST_DATA(cl, o);
  52     gettimeofday(&(data->start_time), NULL);
  53     return;
  54 }
  55
  56 VOID _Timer_Stop(Class *cl, Object *o, Msg msg)
  57 {
  58     struct TimerData *data = INST_DATA(cl, o);
  59     gettimeofday(&(data->elapsed_time), NULL);
  60
  61     SubTime(&(data->elapsed_time), &(data->start_time));
  62
  63     return;
  64 }
  65
  66 VOID _Timer_PrintElapsed(Class *cl, Object *o, Msg msg)
  67 {
  68     struct TimerData *data = INST_DATA(cl, o);
  69
  70     printf("%d secs and %d micros\n"
  71         ,data->elapsed_time.tv_sec
  72         ,data->elapsed_time.tv_usec);
  73
  74 }
  75
  76 IPTR _Timer_TestMethod(Class *cl, Msg msg)
  77 {
  78     return (12345678);
  79 }
  80
  81
  82 Class *MakeTimerClass()
  83 {
  84     APTR methods[] =
  85     {
  86         NULL,
  87         NULL,
  88         _Timer_Start,
  89         _Timer_Stop,
  90         _Timer_PrintElapsed,
  91         _Timer_TestMethod
  92     };
  93     Class *cl;
  94
  95     cl = MakeClass(TIMERCLASS, ROOTCLASS, methods, sizeof (struct TimerData), NUM_TIMER_METHODS);
  96     if (cl)
  97     {
  98         AddClass(cl);
  99     }
 100
 101     return (cl);
 102 }
 103
 104 VOID FreeTimerClass(Class *cl)
 105 {
 106     RemoveClass(cl);
 107     FreeClass(cl);
 108 }