Subversion Repositories HelenOS

Rev

Rev 1129 | Rev 1427 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1113 palkovsky 1
/*
2
 * Copyright (C) 2006 Ondrej Palkovsky
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
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
15
 *   derived from this software without specific prior written permission.
16
 *
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
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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
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
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
29
#ifndef __LIBC__PSTHREAD_H__
30
#define __LIBC__PSTHREAD_H__
31
 
32
#include <libarch/psthread.h>
33
#include <libadt/list.h>
1129 palkovsky 34
#include <libarch/thread.h>
1113 palkovsky 35
 
36
#ifndef context_set
1125 jermar 37
#define context_set(c, _pc, stack, size, ptls)          \
38
    (c)->pc = (sysarg_t) (_pc);             \
39
    (c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA;     \
1113 palkovsky 40
        (c)->tls = (sysarg_t) (ptls);
41
#endif /* context_set */
42
 
1392 palkovsky 43
typedef enum {
44
    PS_TO_MANAGER,
45
    PS_FROM_MANAGER,
46
    PS_PREEMPT
47
} pschange_type;
48
 
1113 palkovsky 49
typedef sysarg_t pstid_t;
50
 
51
struct psthread_data {
1128 jermar 52
    link_t link;
1113 palkovsky 53
    context_t ctx;
54
    void *stack;
55
    void *arg;
56
    int (*func)(void *);
1129 palkovsky 57
    tcb_t *tcb;
1113 palkovsky 58
 
59
    struct psthread_data *waiter;
60
    int finished;
61
    int retval;
62
    int flags;
63
};
64
typedef struct psthread_data psthread_data_t;
65
 
66
extern int context_save(context_t *c);
67
extern void context_restore(context_t *c) __attribute__ ((noreturn));
68
 
69
pstid_t psthread_create(int (*func)(void *), void *arg);
1128 jermar 70
int psthread_join(pstid_t psthrid);
1392 palkovsky 71
psthread_data_t * psthread_setup(void);
1129 palkovsky 72
void psthread_teardown(psthread_data_t *pt);
1392 palkovsky 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);
1113 palkovsky 77
 
1392 palkovsky 78
static inline int psthread_schedule_next() {
79
    return psthread_schedule_next_adv(PS_PREEMPT);
80
}
1129 palkovsky 81
 
1392 palkovsky 82
 
1113 palkovsky 83
#endif