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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [posix/] [src/] [clocksettime.c] - Blame information for rev 593

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1 30 unneback
/*
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 *  $Id: clocksettime.c,v 1.2 2001-09-27 11:59:17 chris Exp $
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 */
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#include <assert.h>
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#include <time.h>
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#include <errno.h>
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#include <rtems/system.h>
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#include <rtems/score/isr.h>
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#include <rtems/score/thread.h>
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#include <rtems/score/tod.h>
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#include <rtems/posix/seterr.h>
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#include <rtems/posix/time.h>
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/*PAGE
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 *
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 *  14.2.1 Clocks, P1003.1b-1993, p. 263
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 */
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int clock_settime(
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  clockid_t              clock_id,
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  const struct timespec *tp
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)
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{
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  struct tm         split_time;
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  TOD_Control       tod;
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  Watchdog_Interval seconds;
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  assert( tp );
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  switch ( clock_id ) {
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    case CLOCK_REALTIME:
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      (void) gmtime_r( &tp->tv_sec, &split_time );
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      /*
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       *  Convert the tm structure format to that used by the TOD Handler
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       *
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       *  NOTE: TOD Handler does not honor leap seconds.
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       */
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      tod.year   = split_time.tm_year + 1900;  /* RHS is years since 1900 */
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      tod.month  = split_time.tm_mon + 1;      /* RHS uses 0-11 */
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      tod.day    = split_time.tm_mday;
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      tod.hour   = split_time.tm_hour;
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      tod.minute = split_time.tm_min;
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      tod.second = split_time.tm_sec;  /* RHS allows 0-61 for leap seconds */
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      tod.ticks  = (tp->tv_nsec / TOD_NANOSECONDS_PER_MICROSECOND) /
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                      _TOD_Microseconds_per_tick;
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      if ( !_TOD_Validate( &tod ) )
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        set_errno_and_return_minus_one( EINVAL );
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      /*
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       *  We can't use the tp->tv_sec field because it is based on
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       *  a different EPOCH.
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       */
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      seconds = _TOD_To_seconds( &tod );
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      _Thread_Disable_dispatch();
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        _TOD_Set( &tod, seconds );
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      _Thread_Enable_dispatch();
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      break;
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#ifdef _POSIX_CPUTIME
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    case CLOCK_PROCESS_CPUTIME:
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      return POSIX_NOT_IMPLEMENTED();
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      break;
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#endif
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#ifdef _POSIX_THREAD_CPUTIME
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    case CLOCK_THREAD_CPUTIME:
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      return POSIX_NOT_IMPLEMENTED();
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      break;
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#endif
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    default:
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      set_errno_and_return_minus_one( EINVAL );
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  }
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  return 0;
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}

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