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) && !defined(OPENSSL_SYS_WINDOWS)
55 CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
57 CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(pthread_rwlock_t));
61 if (pthread_rwlock_init(lock, NULL) != 0) {
69 int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock)
71 if (pthread_rwlock_rdlock(lock) != 0)
77 int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock)
79 if (pthread_rwlock_wrlock(lock) != 0)
85 int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock)
87 if (pthread_rwlock_unlock(lock) != 0)
93 void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock)
98 pthread_rwlock_destroy(lock);
104 int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))
106 if (pthread_once(once, init) != 0)
112 int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *))
114 if (pthread_key_create(key, cleanup) != 0)
120 void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key)
122 return pthread_getspecific(*key);
125 int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val)
127 if (pthread_setspecific(*key, val) != 0)
133 int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key)
135 if (pthread_key_delete(*key) != 0)
141 CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void)
143 return pthread_self();
146 int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b)
148 return pthread_equal(a, b);
151 int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)
153 #ifdef __ATOMIC_RELAXED
154 *ret = __atomic_add_fetch(val, amount, __ATOMIC_RELAXED);
156 if (!CRYPTO_THREAD_write_lock(lock))
162 if (!CRYPTO_THREAD_unlock(lock))