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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 |