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 */
 
typedef enum {
    PS_TO_MANAGER,
    PS_FROM_MANAGER,
    PS_PREEMPT
} 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);
 
static inline int psthread_schedule_next() {
    return psthread_schedule_next_adv(PS_PREEMPT);
}
 
 
#endif
 

Rev 1129	Rev 1392
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	typedef enum {
-		44	PS_TO_MANAGER,
-		45	PS_FROM_MANAGER,
-		46	PS_PREEMPT
-		47	} pschange_type;
-		48
43	typedef sysarg_t pstid_t;	49	typedef sysarg_t pstid_t;
44		50
45	struct psthread_data {	51	struct psthread_data {
46	link_t link;	52	link_t link;
47	context_t ctx;	53	context_t ctx;
48	void *stack;	54	void *stack;
49	void *arg;	55	void *arg;
50	int (func)(void );	56	int (func)(void );
51	tcb_t *tcb;	57	tcb_t *tcb;
52		58
53	struct psthread_data *waiter;	59	struct psthread_data *waiter;
54	int finished;	60	int finished;
55	int retval;	61	int retval;
56	int flags;	62	int flags;
57	};	63	};
58	typedef struct psthread_data psthread_data_t;	64	typedef struct psthread_data psthread_data_t;
59		65
60	extern int context_save(context_t *c);	66	extern int context_save(context_t *c);
61	extern void context_restore(context_t *c) __attribute__ ((noreturn));	67	extern void context_restore(context_t *c) __attribute__ ((noreturn));
62		68
63	pstid_t psthread_create(int (func)(void ), void *arg);	69	pstid_t psthread_create(int (func)(void ), void *arg);
64	int psthread_schedule_next(void);	-
65	int psthread_join(pstid_t psthrid);	70	int psthread_join(pstid_t psthrid);
66	psthread_data_t * psthread_setup(tcb_t *tcb);	71	psthread_data_t * psthread_setup(void);
67	void psthread_teardown(psthread_data_t *pt);	72	void psthread_teardown(psthread_data_t *pt);
-		73	int psthread_schedule_next_adv(pschange_type ctype);
-		74	void psthread_add_ready(pstid_t ptid);
-		75	void psthread_add_manager(pstid_t psthrid);
-		76	void psthread_remove_manager(void);
-		77
-		78	static inline int psthread_schedule_next() {
-		79	return psthread_schedule_next_adv(PS_PREEMPT);
-		80	}
68		81
69		82
70	#endif	83	#endif
71		84

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/libc/include/psthread.h @ 1653 – Rev 1129 → 1392