compiler/stdc/clock.c

   1 /*
   2     Copyright © 1995-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Returns time passed since start of program.
   6 */
   7
   8 #include <aros/symbolsets.h>
   9
  10 #include "__stdc_intbase.h"
  11
  12 /*****************************************************************************
  13
  14     NAME */
  15 #include <time.h>
  16
  17         clock_t clock (
  18
  19 /*  SYNOPSIS */
  20         void)
  21
  22 /*  FUNCTION
  23        clock() returns an approximation of the time passed since
  24        the program was started
  25
  26     INPUTS
  27
  28     RESULT
  29         The time passed in CLOCKS_PER_SEC units. To get the
  30         number of seconds divide by CLOCKS_PER_SEC.
  31
  32     NOTES
  33         Reference point is set when stdc.library is opened.
  34         If you use the function from another shared library the reference
  35         point is thus when this library opened stdc.library
  36
  37     EXAMPLE
  38
  39     BUGS
  40
  41     SEE ALSO
  42         time()
  43
  44     INTERNALS
  45
  46 ******************************************************************************/
  47 {
  48     struct StdCIntBase *StdCBase = (struct StdCIntBase *)__aros_getbase_StdCBase();
  49
  50     return (clock_t)time(NULL) - StdCBase->starttime;
  51 } /* clock */
  52
  53 int __init_clock(struct StdCIntBase *StdCBase)
  54 {
  55     StdCBase->starttime = (clock_t)time(NULL);
  56
  57     return 1;
  58 }
  59
  60 ADD2OPENLIB(__init_clock, 20);