/*
* Copyright (C) 2001-2004 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __TASK_H__
#define __TASK_H__
#include <typedefs.h>
#include <synch/spinlock.h>
#include <adt/list.h>
#include <ipc/ipc.h>
/** Task structure. */
struct task {
SPINLOCK_DECLARE(lock);
link_t th_head; /**< List of threads contained in this task. */
link_t tasks_link; /**< Link to other tasks within the system. */
as_t *as; /**< Address space. */
/* IPC stuff */
answerbox_t answerbox; /**< Communication endpoint */
phone_t phones[IPC_MAX_PHONES];
atomic_t active_calls; /**< Active asynchronous messages */
};
extern spinlock_t tasks_lock;
extern link_t tasks_head;
extern void task_init(void);
extern task_t *task_create(as_t *as);
extern task_t *task_run_program(void * program_addr);
#endif