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1 | /* |
1 | /* |
2 | * Copyright (c) 2009 Jakub Jermar |
2 | * Copyright (c) 2009 Jakub Jermar |
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_FIBRIL_SYNC_H_ |
35 | #ifndef LIBC_FIBRIL_SYNC_H_ |
36 | #define LIBC_FIBRIL_SYNC_H_ |
36 | #define LIBC_FIBRIL_SYNC_H_ |
37 | 37 | ||
38 | #include <async.h> |
38 | #include <async.h> |
39 | #include <fibril.h> |
39 | #include <fibril.h> |
40 | #include <adt/list.h> |
40 | #include <adt/list.h> |
41 | #include <libarch/tls.h> |
41 | #include <libarch/tls.h> |
42 | 42 | ||
43 | typedef struct { |
43 | typedef struct { |
44 | int counter; |
44 | int counter; |
45 | link_t waiters; |
45 | link_t waiters; |
46 | } fibril_mutex_t; |
46 | } fibril_mutex_t; |
47 | 47 | ||
48 | #define FIBRIL_MUTEX_INITIALIZE(name) \ |
48 | #define FIBRIL_MUTEX_INITIALIZE(name) \ |
49 | fibril_mutex_t name = { \ |
49 | fibril_mutex_t name = { \ |
50 | .counter = 1, \ |
50 | .counter = 1, \ |
51 | .waiters = { \ |
51 | .waiters = { \ |
52 | .prev = &name.waiters, \ |
52 | .prev = &name.waiters, \ |
53 | .next = &name.waiters, \ |
53 | .next = &name.waiters, \ |
54 | } \ |
54 | } \ |
55 | } |
55 | } |
56 | 56 | ||
57 | typedef struct { |
57 | typedef struct { |
58 | fibril_mutex_t fm; |
58 | fibril_mutex_t fm; |
59 | } fibril_rwlock_t; |
59 | } fibril_rwlock_t; |
60 | 60 | ||
61 | #define FIBRIL_RWLOCK_INITIALIZE(name) \ |
61 | #define FIBRIL_RWLOCK_INITIALIZE(name) \ |
62 | fibril_rwlock_t name = { \ |
62 | fibril_rwlock_t name = { \ |
63 | .fm = { \ |
63 | .fm = { \ |
64 | .counter = 1, \ |
64 | .counter = 1, \ |
65 | .waiters = { \ |
65 | .waiters = { \ |
66 | .prev = &name.fm.waiters, \ |
66 | .prev = &name.fm.waiters, \ |
67 | .next = &name.fm.waiters, \ |
67 | .next = &name.fm.waiters, \ |
68 | } \ |
68 | } \ |
69 | } \ |
69 | } \ |
70 | } |
70 | } |
71 | 71 | ||
72 | extern void fibril_mutex_initialize(fibril_mutex_t *); |
72 | extern void fibril_mutex_initialize(fibril_mutex_t *); |
73 | extern void fibril_mutex_lock(fibril_mutex_t *); |
73 | extern void fibril_mutex_lock(fibril_mutex_t *); |
74 | extern bool fibril_mutex_trylock(fibril_mutex_t *); |
74 | extern bool fibril_mutex_trylock(fibril_mutex_t *); |
75 | extern void fibril_mutex_unlock(fibril_mutex_t *); |
75 | extern void fibril_mutex_unlock(fibril_mutex_t *); |
76 | 76 | ||
77 | extern void fibril_rwlock_initialize(fibril_rwlock_t *); |
77 | extern void fibril_rwlock_initialize(fibril_rwlock_t *); |
78 | extern void fibril_rwlock_read_lock(fibril_rwlock_t *); |
78 | extern void fibril_rwlock_read_lock(fibril_rwlock_t *); |
79 | extern void fibril_rwlock_write_lock(fibril_rwlock_t *); |
79 | extern void fibril_rwlock_write_lock(fibril_rwlock_t *); |
80 | extern void fibril_rwlock_read_unlock(fibril_rwlock_t *); |
80 | extern void fibril_rwlock_read_unlock(fibril_rwlock_t *); |
81 | extern void fibril_rwlock_write_unlock(fibril_rwlock_t *); |
81 | extern void fibril_rwlock_write_unlock(fibril_rwlock_t *); |
82 | 82 | ||
83 | #endif |
83 | #endif |
84 | 84 | ||
85 | /** @} |
85 | /** @} |
86 | */ |
86 | */ |
87 | 87 |