WebSVN – HelenOS-historic – Diff – /uspace/trunk/libc/include/psthread.h


/*
 * Copyright (C) 2006 Ondrej Palkovsky
 * 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 __LIBC__PSTHREAD_H__
#define __LIBC__PSTHREAD_H__
 
#include <libarch/psthread.h>
#include <libadt/list.h>
#include <libarch/thread.h>
 
#ifndef context_set
#define context_set(c, _pc, stack, size, ptls)          \
    (c)->pc = (sysarg_t) (_pc);             \
    (c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA;     \
        (c)->tls = (sysarg_t) (ptls);
#endif /* context_set */
 
#define PSTHREAD_SERIALIZED   1
 
typedef enum {
    PS_TO_MANAGER,
    PS_FROM_MANAGER,
    PS_PREEMPT,
    PS_FROM_DEAD
} pschange_type;
 
typedef sysarg_t pstid_t;
 
struct psthread_data {
    link_t link;
    context_t ctx;
    void *stack;
    void *arg;
    int (*func)(void *);
    tcb_t *tcb;
 
    struct psthread_data *waiter;
    int finished;
    int retval;
    int flags;
};
typedef struct psthread_data psthread_data_t;
 
extern int context_save(context_t *c);
extern void context_restore(context_t *c) __attribute__ ((noreturn));
 
pstid_t psthread_create(int (*func)(void *), void *arg);
int psthread_join(pstid_t psthrid);
psthread_data_t * psthread_setup(void);
void psthread_teardown(psthread_data_t *pt);
int psthread_schedule_next_adv(pschange_type ctype);
void psthread_add_ready(pstid_t ptid);
void psthread_add_manager(pstid_t psthrid);
void psthread_remove_manager(void);
pstid_t psthread_get_id(void);
void psthread_inc_sercount(void);
void psthread_dec_sercount(void);
 
static inline int psthread_schedule_next() {
    return psthread_schedule_next_adv(PS_PREEMPT);
}
 
 
#endif
 

Rev 1427	Rev 1610
1	/*	1	/*
2	* Copyright (C) 2006 Ondrej Palkovsky	2	* Copyright (C) 2006 Ondrej Palkovsky
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 __LIBC__PSTHREAD_H__	29	#ifndef __LIBC__PSTHREAD_H__
30	#define __LIBC__PSTHREAD_H__	30	#define __LIBC__PSTHREAD_H__
31		31
32	#include <libarch/psthread.h>	32	#include <libarch/psthread.h>
33	#include <libadt/list.h>	33	#include <libadt/list.h>
34	#include <libarch/thread.h>	34	#include <libarch/thread.h>
35		35
36	#ifndef context_set	36	#ifndef context_set
37	#define context_set(c, _pc, stack, size, ptls) \	37	#define context_set(c, _pc, stack, size, ptls) \
38	(c)->pc = (sysarg_t) (_pc); \	38	(c)->pc = (sysarg_t) (_pc); \
39	(c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA; \	39	(c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA; \
40	(c)->tls = (sysarg_t) (ptls);	40	(c)->tls = (sysarg_t) (ptls);
41	#endif /* context_set */	41	#endif /* context_set */
42		42
-		43	#define PSTHREAD_SERIALIZED 1
-		44
43	typedef enum {	45	typedef enum {
44	PS_TO_MANAGER,	46	PS_TO_MANAGER,
45	PS_FROM_MANAGER,	47	PS_FROM_MANAGER,
46	PS_PREEMPT	48	PS_PREEMPT,
-		49	PS_FROM_DEAD
47	} pschange_type;	50	} pschange_type;
48		51
49	typedef sysarg_t pstid_t;	52	typedef sysarg_t pstid_t;
50		53
51	struct psthread_data {	54	struct psthread_data {
52	link_t link;	55	link_t link;
53	context_t ctx;	56	context_t ctx;
54	void *stack;	57	void *stack;
55	void *arg;	58	void *arg;
56	int (func)(void );	59	int (func)(void );
57	tcb_t *tcb;	60	tcb_t *tcb;
58		61
59	struct psthread_data *waiter;	62	struct psthread_data *waiter;
60	int finished;	63	int finished;
61	int retval;	64	int retval;
62	int flags;	65	int flags;
63	};	66	};
64	typedef struct psthread_data psthread_data_t;	67	typedef struct psthread_data psthread_data_t;
65		68
66	extern int context_save(context_t *c);	69	extern int context_save(context_t *c);
67	extern void context_restore(context_t *c) __attribute__ ((noreturn));	70	extern void context_restore(context_t *c) __attribute__ ((noreturn));
68		71
69	pstid_t psthread_create(int (func)(void ), void *arg);	72	pstid_t psthread_create(int (func)(void ), void *arg);
70	int psthread_join(pstid_t psthrid);	73	int psthread_join(pstid_t psthrid);
71	psthread_data_t * psthread_setup(void);	74	psthread_data_t * psthread_setup(void);
72	void psthread_teardown(psthread_data_t *pt);	75	void psthread_teardown(psthread_data_t *pt);
73	int psthread_schedule_next_adv(pschange_type ctype);	76	int psthread_schedule_next_adv(pschange_type ctype);
74	void psthread_add_ready(pstid_t ptid);	77	void psthread_add_ready(pstid_t ptid);
75	void psthread_add_manager(pstid_t psthrid);	78	void psthread_add_manager(pstid_t psthrid);
76	void psthread_remove_manager(void);	79	void psthread_remove_manager(void);
77	pstid_t psthread_get_id(void);	80	pstid_t psthread_get_id(void);
-		81	void psthread_inc_sercount(void);
-		82	void psthread_dec_sercount(void);
78		83
79	static inline int psthread_schedule_next() {	84	static inline int psthread_schedule_next() {
80	return psthread_schedule_next_adv(PS_PREEMPT);	85	return psthread_schedule_next_adv(PS_PREEMPT);
81	}	86	}
82		87
83		88
84	#endif	89	#endif
85		90

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/libc/include/psthread.h – Rev 1427 → 1610