timespec.h

Go to the documentation of this file.

/*
 *  COPYRIGHT (c) 1989-2008.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.com/license/LICENSE.
 *
 *  $Id: timespec.h,v 1.4 2008/01/18 16:31:57 jennifer Exp $
 */

#ifndef _RTEMS_SCORE_TIMESPEC_H
#define _RTEMS_SCORE_TIMESPEC_H

#ifdef __cplusplus
extern "C" {
#endif

#include <sys/types.h>
#include <rtems/score/tod.h>
#include <rtems/score/watchdog.h>

boolean _Timespec_Is_valid(
  const struct timespec *time
);

boolean _Timespec_Less_than(
  const struct timespec *lhs,
  const struct timespec *rhs
);

boolean _Timespec_Greater_than(
  const struct timespec *lhs,
  const struct timespec *rhs
);

#define _Timespec_Equal_to( lhs, rhs ) \
  ( ((lhs)->tv_sec  == (rhs)->tv_sec) &&   \
    ((lhs)->tv_nsec == (rhs)->tv_nsec)     \
  )

uint32_t _Timespec_Add_to(
  struct timespec       *time,
  const struct timespec *add
);

uint32_t _Timespec_To_ticks(
  const struct timespec *time
);

void _Timespec_From_ticks(
  uint32_t         ticks,
  struct timespec *time
);

void _Timespec_Subtract(
  const struct timespec *start,
  const struct timespec *end,
  struct timespec       *result
);

void _Timespec_Divide_by_integer(
  const struct timespec *time,
  uint32_t               iterations,
  struct timespec       *result
);

void _Timespec_Divide(
  const struct timespec *lhs,
  const struct timespec *rhs,
  uint32_t              *ival_percentage,
  uint32_t              *fval_percentage
);

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */

---