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Commit | Line | Data |
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62867571 | 1 | /* |
28428130 | 2 | * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved. |
71a04cfc | 3 | * |
0e9725bc | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
71a04cfc AG |
8 | */ |
9 | ||
10 | #include <openssl/crypto.h> | |
5f8dd0f8 | 11 | #include "internal/cryptlib.h" |
71a04cfc AG |
12 | |
13 | #if !defined(OPENSSL_THREADS) || defined(CRYPTO_TDEBUG) | |
14 | ||
15 | CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void) | |
16 | { | |
7de2b9c4 RS |
17 | CRYPTO_RWLOCK *lock; |
18 | ||
19 | if ((lock = OPENSSL_zalloc(sizeof(unsigned int))) == NULL) { | |
20 | /* Don't set error, to avoid recursion blowup. */ | |
71a04cfc | 21 | return NULL; |
7de2b9c4 | 22 | } |
71a04cfc AG |
23 | |
24 | *(unsigned int *)lock = 1; | |
25 | ||
26 | return lock; | |
27 | } | |
28 | ||
29 | int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock) | |
30 | { | |
fb7621cb MC |
31 | if (!ossl_assert(*(unsigned int *)lock == 1)) |
32 | return 0; | |
71a04cfc AG |
33 | return 1; |
34 | } | |
35 | ||
36 | int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock) | |
37 | { | |
fb7621cb MC |
38 | if (!ossl_assert(*(unsigned int *)lock == 1)) |
39 | return 0; | |
71a04cfc AG |
40 | return 1; |
41 | } | |
42 | ||
43 | int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock) | |
44 | { | |
fb7621cb MC |
45 | if (!ossl_assert(*(unsigned int *)lock == 1)) |
46 | return 0; | |
71a04cfc AG |
47 | return 1; |
48 | } | |
49 | ||
50 | void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock) { | |
51 | if (lock == NULL) | |
52 | return; | |
53 | ||
54 | *(unsigned int *)lock = 0; | |
55 | OPENSSL_free(lock); | |
56 | ||
57 | return; | |
58 | } | |
59 | ||
60 | int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void)) | |
61 | { | |
62 | if (*once != 0) | |
63 | return 1; | |
64 | ||
65 | init(); | |
66 | *once = 1; | |
67 | ||
68 | return 1; | |
69 | } | |
70 | ||
71 | #define OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX 256 | |
72 | ||
73 | static void *thread_local_storage[OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX]; | |
74 | ||
75 | int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *)) | |
76 | { | |
77 | static unsigned int thread_local_key = 0; | |
78 | ||
79 | if (thread_local_key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX) | |
80 | return 0; | |
81 | ||
82 | *key = thread_local_key++; | |
83 | ||
84 | thread_local_storage[*key] = NULL; | |
85 | ||
86 | return 1; | |
87 | } | |
88 | ||
89 | void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key) | |
90 | { | |
91 | if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX) | |
92 | return NULL; | |
93 | ||
94 | return thread_local_storage[*key]; | |
95 | } | |
96 | ||
97 | int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val) | |
98 | { | |
99 | if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX) | |
100 | return 0; | |
101 | ||
102 | thread_local_storage[*key] = val; | |
103 | ||
104 | return 1; | |
105 | } | |
106 | ||
107 | int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key) | |
108 | { | |
109 | *key = OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX + 1; | |
110 | return 1; | |
111 | } | |
112 | ||
113 | CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void) | |
114 | { | |
115 | return 0; | |
116 | } | |
117 | ||
118 | int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b) | |
119 | { | |
120 | return (a == b); | |
121 | } | |
122 | ||
123 | int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock) | |
124 | { | |
125 | *val += amount; | |
126 | *ret = *val; | |
127 | ||
128 | return 1; | |
129 | } | |
130 | ||
2915fe19 RS |
131 | int openssl_init_fork_handlers(void) |
132 | { | |
133 | return 0; | |
134 | } | |
135 | ||
71a04cfc | 136 | #endif |