| /* 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_THREADS) |
| typedef struct crypto_mutex_st { |
| char padding; // Empty structs have different sizes in C and C++. |
| } 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 SRWLOCK by thread_win.c. |
| typedef union crypto_mutex_st { |
| void *handle; |
| } CRYPTO_MUTEX; |
| #elif !defined(__GLIBC__) |
| #if defined(OPENSSL_OPENBSD) |
| // OpenBSD does not guarantee pthread_rwlock_t in sys/types.h yet. |
| #include <pthread.h> |
| #endif |
| typedef pthread_rwlock_t CRYPTO_MUTEX; |
| #else |
| // On glibc, |pthread_rwlock_t| is hidden under feature flags, and we can't |
| // ensure that we'll be able to get it from a public header. 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.c. |
| typedef uint32_t CRYPTO_refcount_t; |
| |
| |
| // Deprecated functions. |
| // |
| // Historically, OpenSSL required callers to provide locking callbacks. |
| // BoringSSL is thread-safe by default, but some old code calls these functions |
| // and so no-op implementations are provided. |
| |
| // 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_locking_callback returns NULL. |
| OPENSSL_EXPORT void (*CRYPTO_get_locking_callback(void))(int mode, 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); |
| |
| // CRYPTO_set_id_callback does nothing. |
| OPENSSL_EXPORT void CRYPTO_set_id_callback(unsigned long (*func)(void)); |
| |
| typedef struct { |
| int references; |
| struct CRYPTO_dynlock_value *data; |
| } CRYPTO_dynlock; |
| |
| // CRYPTO_set_dynlock_create_callback does nothing. |
| OPENSSL_EXPORT void CRYPTO_set_dynlock_create_callback( |
| struct CRYPTO_dynlock_value *(*dyn_create_function)(const char *file, |
| int line)); |
| |
| // CRYPTO_set_dynlock_lock_callback does nothing. |
| OPENSSL_EXPORT void CRYPTO_set_dynlock_lock_callback(void (*dyn_lock_function)( |
| int mode, struct CRYPTO_dynlock_value *l, const char *file, int line)); |
| |
| // CRYPTO_set_dynlock_destroy_callback does nothing. |
| OPENSSL_EXPORT void CRYPTO_set_dynlock_destroy_callback( |
| void (*dyn_destroy_function)(struct CRYPTO_dynlock_value *l, |
| const char *file, int line)); |
| |
| // CRYPTO_get_dynlock_create_callback returns NULL. |
| OPENSSL_EXPORT struct CRYPTO_dynlock_value *( |
| *CRYPTO_get_dynlock_create_callback(void))(const char *file, int line); |
| |
| // CRYPTO_get_dynlock_lock_callback returns NULL. |
| OPENSSL_EXPORT void (*CRYPTO_get_dynlock_lock_callback(void))( |
| int mode, struct CRYPTO_dynlock_value *l, const char *file, int line); |
| |
| // CRYPTO_get_dynlock_destroy_callback returns NULL. |
| OPENSSL_EXPORT void (*CRYPTO_get_dynlock_destroy_callback(void))( |
| struct CRYPTO_dynlock_value *l, const char *file, int line); |
| |
| |
| #if defined(__cplusplus) |
| } // extern C |
| #endif |
| |
| #endif // OPENSSL_HEADER_THREAD_H |