1 /* ====================================================================
2 * Copyright (c) 2016 The OpenSSL Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For written permission, please contact
24 * openssl-core@openssl.org.
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
28 * permission of the OpenSSL Project.
30 * 6. Redistributions of any form whatsoever must retain the following
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ====================================================================
50 #include <openssl/crypto.h>
51 #include "internal/threads.h"
53 #if !defined(OPENSSL_THREADS) || defined(CRYPTO_TDEBUG)
55 CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
57 CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(unsigned int));
61 *(unsigned int *)lock = 1;
66 int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock)
68 OPENSSL_assert(*(unsigned int *)lock == 1);
72 int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock)
74 OPENSSL_assert(*(unsigned int *)lock == 1);
78 int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock)
80 OPENSSL_assert(*(unsigned int *)lock == 1);
84 void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock) {
88 *(unsigned int *)lock = 0;
94 int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))
105 #define OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX 256
107 static void *thread_local_storage[OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX];
109 int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *))
111 static unsigned int thread_local_key = 0;
113 if (thread_local_key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
116 *key = thread_local_key++;
118 thread_local_storage[*key] = NULL;
123 void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key)
125 if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
128 return thread_local_storage[*key];
131 int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val)
133 if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
136 thread_local_storage[*key] = val;
141 int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key)
143 *key = OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX + 1;
147 CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void)
152 int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b)
157 int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)