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#ifndef CYGONCE_POSIX_TIME_H

#define CYGONCE_POSIX_TIME_H

/*=============================================================================

//

//      time.h

//

//      POSIX time header

//

//=============================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

// eCos is free software; you can redistribute it and/or modify it under

// the terms of the GNU General Public License as published by the Free

// Software Foundation; either version 2 or (at your option) any later version.

//

// eCos is distributed in the hope that it will be useful, but WITHOUT ANY

// WARRANTY; without even the implied warranty of MERCHANTABILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// You should have received a copy of the GNU General Public License along

// with eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

// License. However the source code for this file must still be made available

// in accordance with section (3) of the GNU General Public License.

//

// This exception does not invalidate any other reasons why a work based on

// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//=============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):     nickg

// Contributors:  nickg, jlarmour

// Date:          2000-03-17

// Purpose:       POSIX time header

// Description:   This header contains all the definitions needed to support

//                the POSIX timer and timer API under eCos.

//

// Usage:         Do not include this file directly - instead include <time.h>

//

//

//####DESCRIPTIONEND####

//

//===========================================================================*/

#include <pkgconf/posix.h>

#include <cyg/infra/cyg_type.h>

/*---------------------------------------------------------------------------*/

/* Types for timers and clocks */

typedef int clockid_t;

#ifdef CYGPKG_POSIX_TIMERS

typedef int timer_t;

/* forward declaration - if the app uses it it will have to include

 * signal.h anyway

 */

struct sigevent;

#endif

/*---------------------------------------------------------------------------*/

/* Structures */

struct timespec

{

    time_t      tv_sec;

    long        tv_nsec;

};

#ifdef CYGPKG_POSIX_TIMERS

struct itimerspec

{

    struct timespec     it_interval;

    struct timespec     it_value;

};

#endif

/*---------------------------------------------------------------------------*/

/* Manifest constants */

#define CLOCK_REALTIME          0

#ifdef CYGPKG_POSIX_TIMERS

#define TIMER_ABSTIME           1

#endif

/*---------------------------------------------------------------------------*/

/* Clock functions */

/* Set the clocks current time */

__externC int clock_settime( clockid_t clock_id, const struct timespec *tp);

/* Get the clocks current time */

__externC int clock_gettime( clockid_t clock_id, struct timespec *tp);

/* Get the clocks resolution */

__externC int clock_getres( clockid_t clock_id, struct timespec *tp);

/*---------------------------------------------------------------------------*/

/* Timer functions */

#ifdef CYGPKG_POSIX_TIMERS

/* Create a timer based on the given clock. */

__externC int timer_create( clockid_t clock_id,

                            struct sigevent *evp,

                            timer_t *timer_id);

/* Delete the timer */

__externC int timer_delete( timer_t timer_id );

/* Set the expiration time of the timer. */

__externC int timer_settime( timer_t timerid, int flags,

                             const struct itimerspec *value,

                             struct itimerspec *ovalue );

/* Get current timer values */

__externC int timer_gettime( timer_t timerid, struct itimerspec *value );

/* Get number of missed triggers */

__externC int timer_getoverrun( timer_t timerid );

#endif

/*---------------------------------------------------------------------------*/

/* Nanosleep */

/* Sleep for the given time. */

__externC int nanosleep( const struct timespec *rqtp,

                         struct timespec *rmtp);

/*---------------------------------------------------------------------------*/

#endif /* ifndef CYGONCE_POSIX_TIME_H */

/* End of time.h */