WebSVN – HelenOS-historic – Diff – /kernel/trunk/generic/include/proc/task.h


/*
 * 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/btree.h>
#include <adt/list.h>
#include <ipc/ipc.h>
#include <security/cap.h>
#include <arch/proc/task.h>
 
/** Task structure. */
struct task {
    SPINLOCK_DECLARE(lock);
    char *name;
    link_t th_head;     /**< List of threads contained in this task. */
    as_t *as;       /**< Address space. */
    task_id_t taskid;   /**< Unique identity of task */
 
    cap_t capabilities; /**< Task capabilities. */
 
    /* IPC stuff */
    answerbox_t answerbox;  /**< Communication endpoint */
    phone_t phones[IPC_MAX_PHONES];
    atomic_t active_calls;  /**< Active asynchronous messages */
   
    task_arch_t arch;   /**< Architecture specific task data. */
};
 
extern spinlock_t tasks_lock;
extern btree_t tasks_btree;
 
extern void task_init(void);
extern task_t *task_create(as_t *as, char *name);
extern task_t *task_run_program(void *program_addr, char *name);
extern task_t *task_find_by_id(task_id_t id);
 
#ifndef task_create_arch
extern void task_create_arch(task_t *t);
#endif
 
extern __native sys_task_get_id(task_id_t *uspace_task_id);
 
#endif
 

Rev 1187	Rev 1227
1	/*	1	/*
2	* Copyright (C) 2001-2004 Jakub Jermar	2	* Copyright (C) 2001-2004 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	#ifndef __TASK_H__	29	#ifndef __TASK_H__
30	#define __TASK_H__	30	#define __TASK_H__
31		31
32	#include <typedefs.h>	32	#include <typedefs.h>
33	#include <synch/spinlock.h>	33	#include <synch/spinlock.h>
34	#include <adt/btree.h>	34	#include <adt/btree.h>
35	#include <adt/list.h>	35	#include <adt/list.h>
36	#include <ipc/ipc.h>	36	#include <ipc/ipc.h>
37	#include <security/cap.h>	37	#include <security/cap.h>
38	#include <arch/proc/task.h>	38	#include <arch/proc/task.h>
39		39
40	/** Task structure. */	40	/** Task structure. */
41	struct task {	41	struct task {
42	SPINLOCK_DECLARE(lock);	42	SPINLOCK_DECLARE(lock);
43	char *name;	43	char *name;
44	link_t th_head; /*< List of threads contained in this task. /	44	link_t th_head; /*< List of threads contained in this task. /
45	as_t as; /< Address space. /	45	as_t as; /< Address space. /
46	task_id_t taskid; /*< Unique identity of task /	46	task_id_t taskid; /*< Unique identity of task /
47		47
48	cap_t capabilities; /*< Task capabilities. /	48	cap_t capabilities; /*< Task capabilities. /
49		49
50	/* IPC stuff */	50	/* IPC stuff */
51	answerbox_t answerbox; /*< Communication endpoint /	51	answerbox_t answerbox; /*< Communication endpoint /
52	phone_t phones[IPC_MAX_PHONES];	52	phone_t phones[IPC_MAX_PHONES];
53	atomic_t active_calls; /*< Active asynchronous messages /	53	atomic_t active_calls; /*< Active asynchronous messages /
54		54
55	task_arch_t arch; /*< Architecture specific task data. /	55	task_arch_t arch; /*< Architecture specific task data. /
56	};	56	};
57		57
58	extern spinlock_t tasks_lock;	58	extern spinlock_t tasks_lock;
59	extern btree_t tasks_btree;	59	extern btree_t tasks_btree;
60		60
61	extern void task_init(void);	61	extern void task_init(void);
62	extern task_t task_create(as_t as, char *name);	62	extern task_t task_create(as_t as, char *name);
63	extern task_t task_run_program(void program_addr, char *name);	63	extern task_t task_run_program(void program_addr, char *name);
64	extern task_t *task_find_by_id(task_id_t id);	64	extern task_t *task_find_by_id(task_id_t id);
65		65
66	#ifndef task_create_arch	66	#ifndef task_create_arch
67	extern void task_create_arch(task_t *t);	67	extern void task_create_arch(task_t *t);
68	#endif	68	#endif
69		69
70	extern __native sys_get_task_id(task_id_t *uspace_task_id);	70	extern __native sys_task_get_id(task_id_t *uspace_task_id);
71		71
72	#endif	72	#endif
73		73

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/include/proc/task.h – Rev 1187 → 1227