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Commit | Line | Data |
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62867571 RS |
1 | /* |
2 | * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. | |
71a04cfc | 3 | * |
62867571 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
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 | { | |
17 | CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(unsigned int)); | |
18 | if (lock == NULL) | |
19 | return NULL; | |
20 | ||
21 | *(unsigned int *)lock = 1; | |
22 | ||
23 | return lock; | |
24 | } | |
25 | ||
26 | int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock) | |
27 | { | |
fb7621cb MC |
28 | if (!ossl_assert(*(unsigned int *)lock == 1)) |
29 | return 0; | |
71a04cfc AG |
30 | return 1; |
31 | } | |
32 | ||
33 | int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock) | |
34 | { | |
fb7621cb MC |
35 | if (!ossl_assert(*(unsigned int *)lock == 1)) |
36 | return 0; | |
71a04cfc AG |
37 | return 1; |
38 | } | |
39 | ||
40 | int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock) | |
41 | { | |
fb7621cb MC |
42 | if (!ossl_assert(*(unsigned int *)lock == 1)) |
43 | return 0; | |
71a04cfc AG |
44 | return 1; |
45 | } | |
46 | ||
47 | void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock) { | |
48 | if (lock == NULL) | |
49 | return; | |
50 | ||
51 | *(unsigned int *)lock = 0; | |
52 | OPENSSL_free(lock); | |
53 | ||
54 | return; | |
55 | } | |
56 | ||
57 | int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void)) | |
58 | { | |
59 | if (*once != 0) | |
60 | return 1; | |
61 | ||
62 | init(); | |
63 | *once = 1; | |
64 | ||
65 | return 1; | |
66 | } | |
67 | ||
68 | #define OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX 256 | |
69 | ||
70 | static void *thread_local_storage[OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX]; | |
71 | ||
72 | int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *)) | |
73 | { | |
74 | static unsigned int thread_local_key = 0; | |
75 | ||
76 | if (thread_local_key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX) | |
77 | return 0; | |
78 | ||
79 | *key = thread_local_key++; | |
80 | ||
81 | thread_local_storage[*key] = NULL; | |
82 | ||
83 | return 1; | |
84 | } | |
85 | ||
86 | void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key) | |
87 | { | |
88 | if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX) | |
89 | return NULL; | |
90 | ||
91 | return thread_local_storage[*key]; | |
92 | } | |
93 | ||
94 | int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val) | |
95 | { | |
96 | if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX) | |
97 | return 0; | |
98 | ||
99 | thread_local_storage[*key] = val; | |
100 | ||
101 | return 1; | |
102 | } | |
103 | ||
104 | int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key) | |
105 | { | |
106 | *key = OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX + 1; | |
107 | return 1; | |
108 | } | |
109 | ||
110 | CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void) | |
111 | { | |
112 | return 0; | |
113 | } | |
114 | ||
115 | int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b) | |
116 | { | |
117 | return (a == b); | |
118 | } | |
119 | ||
120 | int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock) | |
121 | { | |
122 | *val += amount; | |
123 | *ret = *val; | |
124 | ||
125 | return 1; | |
126 | } | |
127 | ||
2915fe19 RS |
128 | int openssl_init_fork_handlers(void) |
129 | { | |
130 | return 0; | |
131 | } | |
132 | ||
71a04cfc | 133 | #endif |