165 lines
4.6 KiB
C
165 lines
4.6 KiB
C
/* ====================================================================
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* Copyright (c) 2016 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*/
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#include <openssl/crypto.h>
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#include "internal/threads.h"
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#if !defined(OPENSSL_THREADS) || defined(CRYPTO_TDEBUG)
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CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
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{
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CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(unsigned int));
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if (lock == NULL)
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return NULL;
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*(unsigned int *)lock = 1;
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return lock;
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}
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int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock)
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{
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OPENSSL_assert(*(unsigned int *)lock == 1);
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return 1;
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}
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int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock)
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{
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OPENSSL_assert(*(unsigned int *)lock == 1);
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return 1;
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}
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int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock)
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{
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OPENSSL_assert(*(unsigned int *)lock == 1);
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return 1;
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}
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void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock) {
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if (lock == NULL)
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return;
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*(unsigned int *)lock = 0;
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OPENSSL_free(lock);
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return;
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}
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int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))
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{
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if (*once != 0)
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return 1;
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init();
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*once = 1;
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return 1;
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}
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#define OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX 256
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static void *thread_local_storage[OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX];
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int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *))
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{
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static unsigned int thread_local_key = 0;
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if (thread_local_key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
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return 0;
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*key = thread_local_key++;
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thread_local_storage[*key] = NULL;
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return 1;
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}
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void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key)
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{
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if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
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return NULL;
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return thread_local_storage[*key];
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}
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int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val)
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{
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if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
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return 0;
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thread_local_storage[*key] = val;
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return 1;
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}
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int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key)
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{
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*key = OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX + 1;
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return 1;
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}
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CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void)
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{
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return 0;
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}
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int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b)
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{
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return (a == b);
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}
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int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)
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{
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*val += amount;
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*ret = *val;
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return 1;
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}
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#endif
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