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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/threads_pthread.c
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
;
32 CRYPTO_RWLOCK
*lock
= OPENSSL_zalloc(sizeof(pthread_mutex_t
));
36 pthread_mutexattr_init(&attr
);
37 pthread_mutexattr_settype(&attr
, PTHREAD_MUTEX_RECURSIVE
);
39 if (pthread_mutex_init(lock
, &attr
) != 0) {
40 pthread_mutexattr_destroy(&attr
);
45 pthread_mutexattr_destroy(&attr
);
51 int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK
*lock
)
54 if (pthread_rwlock_rdlock(lock
) != 0)
57 if (pthread_mutex_lock(lock
) != 0)
64 int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK
*lock
)
67 if (pthread_rwlock_wrlock(lock
) != 0)
70 if (pthread_mutex_lock(lock
) != 0)
77 int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK
*lock
)
80 if (pthread_rwlock_unlock(lock
) != 0)
83 if (pthread_mutex_unlock(lock
) != 0)
90 void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK
*lock
)
96 pthread_rwlock_destroy(lock
);
98 pthread_mutex_destroy(lock
);
105 int CRYPTO_THREAD_run_once(CRYPTO_ONCE
*once
, void (*init
)(void))
107 if (pthread_once(once
, init
) != 0)
113 int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL
*key
, void (*cleanup
)(void *))
115 if (pthread_key_create(key
, cleanup
) != 0)
121 void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL
*key
)
123 return pthread_getspecific(*key
);
126 int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL
*key
, void *val
)
128 if (pthread_setspecific(*key
, val
) != 0)
134 int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL
*key
)
136 if (pthread_key_delete(*key
) != 0)
142 CRYPTO_THREAD_ID
CRYPTO_THREAD_get_current_id(void)
144 return pthread_self();
147 int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a
, CRYPTO_THREAD_ID b
)
149 return pthread_equal(a
, b
);
152 int CRYPTO_atomic_add(int *val
, int amount
, int *ret
, CRYPTO_RWLOCK
*lock
)
154 # if defined(__GNUC__) && defined(__ATOMIC_ACQ_REL)
155 if (__atomic_is_lock_free(sizeof(*val
), val
)) {
156 *ret
= __atomic_add_fetch(val
, amount
, __ATOMIC_ACQ_REL
);
160 if (!CRYPTO_THREAD_write_lock(lock
))
166 if (!CRYPTO_THREAD_unlock(lock
))