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- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.] */
-
- #ifndef OPENSSL_HEADER_THREAD_H
- #define OPENSSL_HEADER_THREAD_H
-
- #include <sys/types.h>
-
- #include <openssl/base.h>
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
-
-
- #if defined(OPENSSL_NO_THREADS)
- typedef struct crypto_mutex_st {} CRYPTO_MUTEX;
- #elif defined(OPENSSL_WINDOWS)
- /* CRYPTO_MUTEX can appear in public header files so we really don't want to
- * pull in windows.h. It's statically asserted that this structure is large
- * enough to contain a Windows CRITICAL_SECTION by thread_win.c. */
- typedef union crypto_mutex_st {
- double alignment;
- uint8_t padding[4*sizeof(void*) + 2*sizeof(int)];
- } CRYPTO_MUTEX;
- #elif defined(__MACH__) && defined(__APPLE__)
- typedef pthread_rwlock_t CRYPTO_MUTEX;
- #else
- /* It is reasonable to include pthread.h on non-Windows systems, however the
- * |pthread_rwlock_t| that we need is hidden under feature flags, and we can't
- * ensure that we'll be able to get it. It's statically asserted that this
- * structure is large enough to contain a |pthread_rwlock_t| by
- * thread_pthread.c. */
- typedef union crypto_mutex_st {
- double alignment;
- uint8_t padding[3*sizeof(int) + 5*sizeof(unsigned) + 16 + 8];
- } CRYPTO_MUTEX;
- #endif
-
- /* CRYPTO_refcount_t is the type of a reference count.
- *
- * Since some platforms use C11 atomics to access this, it should have the
- * _Atomic qualifier. However, this header is included by C++ programs as well
- * as C code that might not set -std=c11. So, in practice, it's not possible to
- * do that. Instead we statically assert that the size and native alignment of
- * a plain uint32_t and an _Atomic uint32_t are equal in refcount_c11.c. */
- typedef uint32_t CRYPTO_refcount_t;
-
-
- /* Deprecated functions */
-
- /* These defines do nothing but are provided to make old code easier to
- * compile. */
- #define CRYPTO_LOCK 1
- #define CRYPTO_UNLOCK 2
- #define CRYPTO_READ 4
- #define CRYPTO_WRITE 8
-
- /* CRYPTO_num_locks returns one. (This is non-zero that callers who allocate
- * sizeof(lock) times this value don't get zero and then fail because malloc(0)
- * returned NULL.) */
- OPENSSL_EXPORT int CRYPTO_num_locks(void);
-
- /* CRYPTO_set_locking_callback does nothing. */
- OPENSSL_EXPORT void CRYPTO_set_locking_callback(
- void (*func)(int mode, int lock_num, const char *file, int line));
-
- /* CRYPTO_set_add_lock_callback does nothing. */
- OPENSSL_EXPORT void CRYPTO_set_add_lock_callback(int (*func)(
- int *num, int amount, int lock_num, const char *file, int line));
-
- /* CRYPTO_get_lock_name returns a fixed, dummy string. */
- OPENSSL_EXPORT const char *CRYPTO_get_lock_name(int lock_num);
-
- /* CRYPTO_THREADID_set_callback returns one. */
- OPENSSL_EXPORT int CRYPTO_THREADID_set_callback(
- void (*threadid_func)(CRYPTO_THREADID *threadid));
-
- /* CRYPTO_THREADID_set_numeric does nothing. */
- OPENSSL_EXPORT void CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id,
- unsigned long val);
-
- /* CRYPTO_THREADID_set_pointer does nothing. */
- OPENSSL_EXPORT void CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr);
-
- /* CRYPTO_THREADID_current does nothing. */
- OPENSSL_EXPORT void CRYPTO_THREADID_current(CRYPTO_THREADID *id);
-
-
- /* Private functions.
- *
- * Some old code calls these functions and so no-op implementations are
- * provided.
- *
- * TODO(fork): cleanup callers and remove. */
-
- OPENSSL_EXPORT void CRYPTO_set_id_callback(unsigned long (*func)(void));
-
- typedef struct {
- int references;
- struct CRYPTO_dynlock_value *data;
- } CRYPTO_dynlock;
-
- OPENSSL_EXPORT void CRYPTO_set_dynlock_create_callback(
- struct CRYPTO_dynlock_value *(*dyn_create_function)(const char *file,
- int line));
-
- OPENSSL_EXPORT void CRYPTO_set_dynlock_lock_callback(void (*dyn_lock_function)(
- int mode, struct CRYPTO_dynlock_value *l, const char *file, int line));
-
- OPENSSL_EXPORT void CRYPTO_set_dynlock_destroy_callback(
- void (*dyn_destroy_function)(struct CRYPTO_dynlock_value *l,
- const char *file, int line));
-
-
- #if defined(__cplusplus)
- } /* extern C */
- #endif
-
- #endif /* OPENSSL_HEADER_THREAD_H */
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