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33574c17 | 1 | /* Compatibility routines for cthreads. |
dff8da6b | 2 | Copyright (C) 2000-2024 Free Software Foundation, Inc. |
33574c17 ST |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
ad2b41bf ST |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
33574c17 ST |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
ad2b41bf | 13 | Lesser General Public License for more details. |
33574c17 | 14 | |
ad2b41bf ST |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
33574c17 ST |
18 | |
19 | #include <assert.h> | |
20 | #include <pthreadP.h> | |
21 | ||
22 | #define CTHREAD_KEY_INVALID (__cthread_key_t) -1 | |
23 | ||
24 | void | |
25 | __cthread_detach (__cthread_t thread) | |
26 | { | |
27 | int err; | |
62d6c330 | 28 | pthread_t pthread = (pthread_t) (uintptr_t) thread; |
33574c17 | 29 | |
62d6c330 | 30 | err = __pthread_detach (pthread); |
33574c17 ST |
31 | assert_perror (err); |
32 | } | |
33 | weak_alias (__cthread_detach, cthread_detach) | |
34 | ||
35 | __cthread_t | |
36 | __cthread_fork (__cthread_fn_t func, void *arg) | |
37 | { | |
38 | pthread_t thread; | |
39 | int err; | |
40 | ||
f6fb29d2 | 41 | err = __pthread_create (&thread, NULL, func, arg); |
33574c17 ST |
42 | assert_perror (err); |
43 | ||
62d6c330 | 44 | return (__cthread_t) (uintptr_t) thread; |
33574c17 ST |
45 | } |
46 | weak_alias (__cthread_fork, cthread_fork) | |
47 | ||
48 | int | |
49 | __cthread_keycreate (__cthread_key_t *key) | |
50 | { | |
51 | error_t err; | |
52 | ||
f6fb29d2 | 53 | err = __pthread_key_create (key, 0); |
33574c17 ST |
54 | if (err) |
55 | { | |
56 | errno = err; | |
57 | *key = CTHREAD_KEY_INVALID; | |
58 | err = -1; | |
59 | } | |
60 | ||
61 | return err; | |
62 | } | |
63 | weak_alias (__cthread_keycreate, cthread_keycreate) | |
64 | ||
65 | int | |
66 | __cthread_getspecific (__cthread_key_t key, void **val) | |
67 | { | |
f6fb29d2 | 68 | *val = __pthread_getspecific (key); |
33574c17 ST |
69 | return 0; |
70 | } | |
71 | weak_alias (__cthread_getspecific, cthread_getspecific) | |
72 | ||
73 | int | |
74 | __cthread_setspecific (__cthread_key_t key, void *val) | |
75 | { | |
76 | error_t err; | |
77 | ||
f6fb29d2 | 78 | err = __pthread_setspecific (key, (const void *) val); |
33574c17 ST |
79 | if (err) |
80 | { | |
81 | errno = err; | |
82 | err = -1; | |
83 | } | |
84 | ||
85 | return err; | |
86 | } | |
87 | weak_alias (__cthread_setspecific, cthread_setspecific) | |
88 | ||
89 | void | |
90 | __mutex_lock_solid (void *lock) | |
91 | { | |
92 | __pthread_mutex_lock (lock); | |
93 | } | |
94 | ||
95 | void | |
96 | __mutex_unlock_solid (void *lock) | |
97 | { | |
98 | if (__pthread_spin_trylock (lock) != 0) | |
99 | /* Somebody already got the lock, that one will manage waking up others */ | |
100 | return; | |
101 | __pthread_mutex_unlock (lock); | |
102 | } |