WebSVN – HelenOS – Diff – /trunk/uspace/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.
 */
 
/** @addtogroup libc
 * @{
 */
/** @file
 */
 
#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 1866	Rev 2071
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	/** @addtogroup libc	29	/** @addtogroup libc
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef LIBC_PSTHREAD_H_	35	#ifndef LIBC_PSTHREAD_H_
36	#define LIBC_PSTHREAD_H_	36	#define LIBC_PSTHREAD_H_
37		37
38	#include <libarch/psthread.h>	38	#include <libarch/psthread.h>
39	#include <libadt/list.h>	39	#include <libadt/list.h>
40	#include <libarch/thread.h>	40	#include <libarch/thread.h>
41		41
42	#ifndef context_set	42	#ifndef context_set
43	#define context_set(c, _pc, stack, size, ptls) \	43	#define context_set(c, _pc, stack, size, ptls) \
44	(c)->pc = (sysarg_t) (_pc); \	44	(c)->pc = (sysarg_t) (_pc); \
45	(c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA; \	45	(c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA; \
46	(c)->tls = (sysarg_t) (ptls);	46	(c)->tls = (sysarg_t) (ptls);
47	#endif /* context_set */	47	#endif /* context_set */
48		48
49	#define PSTHREAD_SERIALIZED 1	49	#define PSTHREAD_SERIALIZED 1
50		50
51	typedef enum {	51	typedef enum {
52	PS_TO_MANAGER,	52	PS_TO_MANAGER,
53	PS_FROM_MANAGER,	53	PS_FROM_MANAGER,
54	PS_PREEMPT,	54	PS_PREEMPT,
55	PS_FROM_DEAD	55	PS_FROM_DEAD
56	} pschange_type;	56	} pschange_type;
57		57
58	typedef sysarg_t pstid_t;	58	typedef sysarg_t pstid_t;
59		59
60	struct psthread_data {	60	struct psthread_data {
61	link_t link;	61	link_t link;
62	context_t ctx;	62	context_t ctx;
63	void *stack;	63	void *stack;
64	void *arg;	64	void *arg;
65	int (func)(void );	65	int (func)(void );
66	tcb_t *tcb;	66	tcb_t *tcb;
67		67
68	struct psthread_data *waiter;	68	struct psthread_data *waiter;
69	int finished;	69	int finished;
70	int retval;	70	int retval;
71	int flags;	71	int flags;
72	};	72	};
73	typedef struct psthread_data psthread_data_t;	73	typedef struct psthread_data psthread_data_t;
74		74
75	extern int context_save(context_t *c);	75	extern int context_save(context_t *c);
76	extern void context_restore(context_t *c) __attribute__ ((noreturn));	76	extern void context_restore(context_t *c) __attribute__ ((noreturn));
77		77
78	pstid_t psthread_create(int (func)(void ), void *arg);	78	pstid_t psthread_create(int (func)(void ), void *arg);
79	int psthread_join(pstid_t psthrid);	79	int psthread_join(pstid_t psthrid);
80	psthread_data_t * psthread_setup(void);	80	psthread_data_t * psthread_setup(void);
81	void psthread_teardown(psthread_data_t *pt);	81	void psthread_teardown(psthread_data_t *pt);
82	int psthread_schedule_next_adv(pschange_type ctype);	82	int psthread_schedule_next_adv(pschange_type ctype);
83	void psthread_add_ready(pstid_t ptid);	83	void psthread_add_ready(pstid_t ptid);
84	void psthread_add_manager(pstid_t psthrid);	84	void psthread_add_manager(pstid_t psthrid);
85	void psthread_remove_manager(void);	85	void psthread_remove_manager(void);
86	pstid_t psthread_get_id(void);	86	pstid_t psthread_get_id(void);
87	void psthread_inc_sercount(void);	87	void psthread_inc_sercount(void);
88	void psthread_dec_sercount(void);	88	void psthread_dec_sercount(void);
89		89
90	static inline int psthread_schedule_next() {	90	static inline int psthread_schedule_next() {
91	return psthread_schedule_next_adv(PS_PREEMPT);	91	return psthread_schedule_next_adv(PS_PREEMPT);
92	}	92	}
93		93
94		94
95	#endif	95	#endif
96		96
97	/** @}	97	/** @}
98	*/	98	*/
99		99

Subversion Repositories HelenOS

(root)/trunk/uspace/libc/include/psthread.h – Rev 1866 → 2071