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#ifndef CYGONCE_ISO_SCHED_H

#define CYGONCE_ISO_SCHED_H

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

//

//      sched.h

//

//      POSIX scheduler functions

//

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

//####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):     jlarmour

// Contributors:

// Date:          2000-04-14

// Purpose:       This file provides the scheduler macros, types and functions

//                required by POSIX 1003.1.

// Description:   The real contents of this file get set from the

//                configuration (set by the implementation)

// Usage:         #include <sched.h>

//

//####DESCRIPTIONEND####

//

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

*/

/* CONFIGURATION */

#include <pkgconf/isoinfra.h>          /* Configuration header */

/* INCLUDES */

#include <time.h>

#if CYGINT_ISO_SCHED_IMPL

# ifdef CYGBLD_ISO_SCHED_IMPL_HEADER

#  include CYGBLD_ISO_SCHED_IMPL_HEADER

# else

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

// Scheduling Policys

#define SCHED_OTHER             1

#define SCHED_FIFO              2

#define SCHED_RR                3

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

//Process scheduling functions.

#ifdef __cplusplus

extern "C" {

#endif

// Set scheduling parameters for given process.

extern int sched_setparam (pid_t pid, const struct sched_param *param);

// Get scheduling parameters for given process.

extern int sched_getparam (pid_t pid, struct sched_param *param);

// Set scheduling policy and/or parameters for given process.

extern int sched_setscheduler (pid_t pid,

                               int policy,

                               const struct sched_param *param);

// Get scheduling policy for given process.

extern int sched_getscheduler (pid_t pid);

// Force current thread to relinquish the processor.

extern int sched_yield (void);

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

// Scheduler parameter limits.

// Get maximum priority value for a policy.

extern int sched_get_priority_max (int policy);

// Get minimum priority value for a policy.

extern int sched_get_priority_min (int policy);

// Get the SCHED_RR interval for the given process.

extern int sched_rr_get_interval (pid_t pid, struct timespec *t);

#ifdef __cplusplus

}  /* extern "C" */

#endif

#endif 

#endif /* if CYGINT_ISO_SCHED_IMPL */

#endif /* CYGONCE_ISO_SCHED_H multiple inclusion protection */

/* EOF sched.h */