/*
 * Copyright (C) 2008 Philippe Gerum <rpm@xenomai.org>.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */

#ifndef _PSOS_TASK_H
#define _PSOS_TASK_H

#include <boilerplate/hash.h>
#include <copperplate/threadobj.h>
#include <copperplate/syncobj.h>
#include <copperplate/cluster.h>

struct psos_task_args {
	void (*entry)(u_long a0, u_long a1, u_long a2, u_long a3);
	u_long arg0;
	u_long arg1;
	u_long arg2;
	u_long arg3;
};

#define PSOSTASK_NR_REGS  16

struct psos_task {

	int flags;
	int mode;
	u_long events;
	u_long notepad[PSOSTASK_NR_REGS];
	struct pvlistobj timer_list; /* Private. Never accessed remotely. */

	char name[XNOBJECT_NAME_LEN];
	struct psos_task_args args;

	struct threadobj thobj;
	struct syncobj sobj;	/* For events. */
	struct clusterobj cobj;
};

#define task_magic	0x8181fafa

static inline struct psos_task *psos_task_current(void)
{
	struct threadobj *thobj = threadobj_current();

	if (thobj == NULL ||
	    threadobj_get_magic(thobj) != task_magic)
		return NULL;

	return container_of(thobj, struct psos_task, thobj);
}

struct psos_task *get_psos_task(u_long tid, int *err_r);

struct psos_task *get_psos_task_or_self(u_long tid, int *err_r);

void put_psos_task(struct psos_task *task);

int __ev_send(struct psos_task *task, unsigned long events);

extern struct cluster psos_task_table;

#endif /* _PSOS_TASK_H */