2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
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
10 #include <openssl/crypto.h>
12 #if defined(OPENSSL_THREADS) && !defined(CRYPTO_TDEBUG) && !defined(OPENSSL_SYS_WINDOWS)
14 # ifdef PTHREAD_RWLOCK_INITIALIZER
18 CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
21 CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(pthread_rwlock_t));
25 if (pthread_rwlock_init(lock, NULL) != 0) {
30 pthread_mutexattr_t attr;
31 CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(pthread_mutex_t));
35 pthread_mutexattr_init(&attr);
36 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
38 if (pthread_mutex_init(lock, &attr) != 0) {
39 pthread_mutexattr_destroy(&attr);
44 pthread_mutexattr_destroy(&attr);
50 int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock)
53 if (pthread_rwlock_rdlock(lock) != 0)
56 if (pthread_mutex_lock(lock) != 0)
63 int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock)
66 if (pthread_rwlock_wrlock(lock) != 0)
69 if (pthread_mutex_lock(lock) != 0)
76 int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock)
79 if (pthread_rwlock_unlock(lock) != 0)
82 if (pthread_mutex_unlock(lock) != 0)
89 void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock)
95 pthread_rwlock_destroy(lock);
97 pthread_mutex_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 # if defined(__GNUC__) && defined(__ATOMIC_ACQ_REL)
154 if (__atomic_is_lock_free(sizeof(*val), val)) {
155 *ret = __atomic_add_fetch(val, amount, __ATOMIC_ACQ_REL);
159 if (!CRYPTO_THREAD_write_lock(lock))
165 if (!CRYPTO_THREAD_unlock(lock))