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/* sched.h -- Abstract entities header file handling job scheduler

   Copyright (C) 2001 Marko Mlinar, markom@opencores.org

   Copyright (C) 2005 György `nog' Jeney, nog@sdf.lonestar.org

This file is part of OpenRISC 1000 Architectural Simulator.

This program 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 of the License, or

(at your option) any later version.

This program 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 this program; if not, write to the Free Software

Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */

#ifndef _SCHED_H_

#define _SCHED_H_

void sched_init(void);

void sched_reset(void);

void sched_next_insn(void (*func)(void *), void *dat);

void sched_find_remove(void (*job_func)(void *), void *dat, const char *func);

void sched_add(void (*job_func)(void *), void *job_param, int32_t job_time,

               const char *func);

#define SCHED_ADD(job_func, job_param, job_time) sched_add(job_func, job_param, job_time, #job_func)

#define SCHED_FIND_REMOVE(f, p) sched_find_remove(f, p, __FUNCTION__)

/* Structure for holding one job entry */

struct sched_entry {

  int32_t time;          /* Clock cycles before job starts */

  void *param;           /* Parameter to pass to the function */

  void (*func)(void *);  /* Function to call when time reaches 0 */

  struct sched_entry *next;

};

/* Heap of jobs */

struct scheduler_struct {

  struct sched_entry *free_job_queue;

  struct sched_entry *job_queue;

};

extern struct scheduler_struct scheduler;

/* If we are not running with dynamic execution, then do_scheduler will be

 * inlined and this declaration will be useless (it will also fail to compile)*/

#if DYNAMIC_EXECUTION

void do_scheduler (void);

#endif

#endif /* _SCHED_H_ */