WebSVN – HelenOS-historic – Diff – /SPARTAN/trunk/include/proc/thread.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 __THREAD_H__
#define __THREAD_H__
 
#include <arch/thread.h>
#include <proc/task.h>
#include <synch/spinlock.h>
#include <arch/context.h>
#include <fpu_context.h>
#include <arch/types.h>
#include <typedefs.h>
#include <time/timeout.h>
#include <synch/rwlock.h>
#include <mm/page.h>
#include <list.h>
 
#define THREAD_STACK_SIZE   PAGE_SIZE
 
#define THREAD_USER_STACK   1
 
enum state {
    Invalid,
    Running,
    Sleeping,
    Ready,
    Entering,
    Exiting
};
 
extern char *thread_states[];
 
#define X_WIRED     (1<<0)
#define X_STOLEN    (1<<1)
 
struct thread {
    link_t rq_link;             /* run queue link */
    link_t wq_link;             /* wait queue link */
    link_t th_link;             /* links to threads within the parent task*/
    link_t threads_link;
   
    /* items below are protected by lock */
    spinlock_t lock;
 
    void (* thread_code)(void *);
    void *thread_arg;
 
    context_t saved_context;
    context_t sleep_timeout_context;
    fpu_context_t saved_fpu;                   
   
   
    waitq_t *sleep_queue;
    timeout_t sleep_timeout;
    volatile int timeout_pending;
 
    rwlock_type_t rwlock_holder_type;
    void (* call_me)(void *);
    void *call_me_with;
 
    int state;
    int flags;
   
    cpu_t *cpu;
    task_t *task;
 
    __u64 ticks;
 
    __u32 tid;
   
    int pri;
   
    ARCH_THREAD_DATA;
 
    __u8 *kstack;
    __u8 *ustack;
};
 
extern spinlock_t threads_lock;
extern link_t threads_head;
 
static void cushion(void);
 
extern void thread_init(void);
extern thread_t *thread_create(void (* func)(void *), void *arg, task_t *task, int flags);
extern void thread_ready(thread_t *t);
extern void thread_exit(void);
 
extern void thread_sleep(__u32 sec);
extern void thread_usleep(__u32 usec);
 
extern void thread_register_call_me(void (* call_me)(void *), void *call_me_with);
 
#endif
 

Rev 46	Rev 56
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 __THREAD_H__	29	#ifndef __THREAD_H__
30	#define __THREAD_H__	30	#define __THREAD_H__
31		31
32	#include <arch/thread.h>	32	#include <arch/thread.h>
33	#include <proc/task.h>	33	#include <proc/task.h>
34	#include <synch/spinlock.h>	34	#include <synch/spinlock.h>
35	#include <arch/context.h>	35	#include <arch/context.h>
-		36	#include <fpu_context.h>
36	#include <arch/types.h>	37	#include <arch/types.h>
37	#include <typedefs.h>	38	#include <typedefs.h>
38	#include <time/timeout.h>	39	#include <time/timeout.h>
39	#include <synch/rwlock.h>	40	#include <synch/rwlock.h>
40	#include <mm/page.h>	41	#include <mm/page.h>
41	#include <list.h>	42	#include <list.h>
42		43
43	#define THREAD_STACK_SIZE PAGE_SIZE	44	#define THREAD_STACK_SIZE PAGE_SIZE
44		45
45	#define THREAD_USER_STACK 1	46	#define THREAD_USER_STACK 1
46		47
47	enum state {	48	enum state {
48	Invalid,	49	Invalid,
49	Running,	50	Running,
50	Sleeping,	51	Sleeping,
51	Ready,	52	Ready,
52	Entering,	53	Entering,
53	Exiting	54	Exiting
54	};	55	};
55		56
56	extern char *thread_states[];	57	extern char *thread_states[];
57		58
58	#define X_WIRED (1<<0)	59	#define X_WIRED (1<<0)
59	#define X_STOLEN (1<<1)	60	#define X_STOLEN (1<<1)
60		61
61	struct thread {	62	struct thread {
62	link_t rq_link; /* run queue link */	63	link_t rq_link; /* run queue link */
63	link_t wq_link; /* wait queue link */	64	link_t wq_link; /* wait queue link */
64	link_t th_link; /* links to threads within the parent task*/	65	link_t th_link; /* links to threads within the parent task*/
65	link_t threads_link;	66	link_t threads_link;
66		67
67	/* items below are protected by lock */	68	/* items below are protected by lock */
68	spinlock_t lock;	69	spinlock_t lock;
69		70
70	void (* thread_code)(void *);	71	void (* thread_code)(void *);
71	void *thread_arg;	72	void *thread_arg;
72		73
73	context_t saved_context;	74	context_t saved_context;
74	context_t sleep_timeout_context;	75	context_t sleep_timeout_context;
75	fpu_context_t saved_fpu;	76	fpu_context_t saved_fpu;
76		77
77		78
78	waitq_t *sleep_queue;	79	waitq_t *sleep_queue;
79	timeout_t sleep_timeout;	80	timeout_t sleep_timeout;
80	volatile int timeout_pending;	81	volatile int timeout_pending;
81		82
82	rwlock_type_t rwlock_holder_type;	83	rwlock_type_t rwlock_holder_type;
83	void (* call_me)(void *);	84	void (* call_me)(void *);
84	void *call_me_with;	85	void *call_me_with;
85		86
86	int state;	87	int state;
87	int flags;	88	int flags;
88		89
89	cpu_t *cpu;	90	cpu_t *cpu;
90	task_t *task;	91	task_t *task;
91		92
92	__u64 ticks;	93	__u64 ticks;
93		94
94	__u32 tid;	95	__u32 tid;
95		96
96	int pri;	97	int pri;
97		98
98	ARCH_THREAD_DATA;	99	ARCH_THREAD_DATA;
99		100
100	__u8 *kstack;	101	__u8 *kstack;
101	__u8 *ustack;	102	__u8 *ustack;
102	};	103	};
103		104
104	extern spinlock_t threads_lock;	105	extern spinlock_t threads_lock;
105	extern link_t threads_head;	106	extern link_t threads_head;
106		107
107	static void cushion(void);	108	static void cushion(void);
108		109
109	extern void thread_init(void);	110	extern void thread_init(void);
110	extern thread_t thread_create(void ( func)(void ), void arg, task_t *task, int flags);	111	extern thread_t thread_create(void ( func)(void ), void arg, task_t *task, int flags);
111	extern void thread_ready(thread_t *t);	112	extern void thread_ready(thread_t *t);
112	extern void thread_exit(void);	113	extern void thread_exit(void);
113		114
114	extern void thread_sleep(__u32 sec);	115	extern void thread_sleep(__u32 sec);
115	extern void thread_usleep(__u32 usec);	116	extern void thread_usleep(__u32 usec);
116		117
117	extern void thread_register_call_me(void (* call_me)(void ), void call_me_with);	118	extern void thread_register_call_me(void (* call_me)(void ), void call_me_with);
118		119
119	#endif	120	#endif
120		121

Subversion Repositories HelenOS-historic

(root)/SPARTAN/trunk/include/proc/thread.h – Rev 46 → 56