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33574c17 ST |
1 | /* Compatibility routines for cthreads. |
2 | Copyright (C) 2000-2018 Free Software Foundation, Inc. | |
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 | |
17 | <http://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; | |
28 | ||
29 | err = pthread_detach ((pthread_t) thread); | |
30 | assert_perror (err); | |
31 | } | |
32 | weak_alias (__cthread_detach, cthread_detach) | |
33 | ||
34 | __cthread_t | |
35 | __cthread_fork (__cthread_fn_t func, void *arg) | |
36 | { | |
37 | pthread_t thread; | |
38 | int err; | |
39 | ||
40 | err = pthread_create (&thread, NULL, func, arg); | |
41 | assert_perror (err); | |
42 | ||
43 | return (__cthread_t) thread; | |
44 | } | |
45 | weak_alias (__cthread_fork, cthread_fork) | |
46 | ||
47 | int | |
48 | __cthread_keycreate (__cthread_key_t *key) | |
49 | { | |
50 | error_t err; | |
51 | ||
52 | err = pthread_key_create (key, 0); | |
53 | if (err) | |
54 | { | |
55 | errno = err; | |
56 | *key = CTHREAD_KEY_INVALID; | |
57 | err = -1; | |
58 | } | |
59 | ||
60 | return err; | |
61 | } | |
62 | weak_alias (__cthread_keycreate, cthread_keycreate) | |
63 | ||
64 | int | |
65 | __cthread_getspecific (__cthread_key_t key, void **val) | |
66 | { | |
67 | *val = pthread_getspecific (key); | |
68 | return 0; | |
69 | } | |
70 | weak_alias (__cthread_getspecific, cthread_getspecific) | |
71 | ||
72 | int | |
73 | __cthread_setspecific (__cthread_key_t key, void *val) | |
74 | { | |
75 | error_t err; | |
76 | ||
77 | err = pthread_setspecific (key, (const void *) val); | |
78 | if (err) | |
79 | { | |
80 | errno = err; | |
81 | err = -1; | |
82 | } | |
83 | ||
84 | return err; | |
85 | } | |
86 | weak_alias (__cthread_setspecific, cthread_setspecific) | |
87 | ||
88 | void | |
89 | __mutex_lock_solid (void *lock) | |
90 | { | |
91 | __pthread_mutex_lock (lock); | |
92 | } | |
93 | ||
94 | void | |
95 | __mutex_unlock_solid (void *lock) | |
96 | { | |
97 | if (__pthread_spin_trylock (lock) != 0) | |
98 | /* Somebody already got the lock, that one will manage waking up others */ | |
99 | return; | |
100 | __pthread_mutex_unlock (lock); | |
101 | } |