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Diffstat (limited to 'thirdparty/mbedtls/include/mbedtls/threading.h')
| -rw-r--r-- | thirdparty/mbedtls/include/mbedtls/threading.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/thirdparty/mbedtls/include/mbedtls/threading.h b/thirdparty/mbedtls/include/mbedtls/threading.h new file mode 100644 index 0000000000..58e6db2f3a --- /dev/null +++ b/thirdparty/mbedtls/include/mbedtls/threading.h @@ -0,0 +1,107 @@ +/** + * \file threading.h + * + * \brief Threading abstraction layer + */ +/* + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_THREADING_H +#define MBEDTLS_THREADING_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include <stdlib.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define MBEDTLS_ERR_THREADING_FEATURE_UNAVAILABLE -0x001A /**< The selected feature is not available. */ +#define MBEDTLS_ERR_THREADING_BAD_INPUT_DATA -0x001C /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_THREADING_MUTEX_ERROR -0x001E /**< Locking / unlocking / free failed with error code. */ + +#if defined(MBEDTLS_THREADING_PTHREAD) +#include <pthread.h> +typedef struct +{ + pthread_mutex_t mutex; + char is_valid; +} mbedtls_threading_mutex_t; +#endif + +#if defined(MBEDTLS_THREADING_ALT) +/* You should define the mbedtls_threading_mutex_t type in your header */ +#include "threading_alt.h" + +/** + * \brief Set your alternate threading implementation function + * pointers and initialize global mutexes. If used, this + * function must be called once in the main thread before any + * other mbed TLS function is called, and + * mbedtls_threading_free_alt() must be called once in the main + * thread after all other mbed TLS functions. + * + * \note mutex_init() and mutex_free() don't return a status code. + * If mutex_init() fails, it should leave its argument (the + * mutex) in a state such that mutex_lock() will fail when + * called with this argument. + * + * \param mutex_init the init function implementation + * \param mutex_free the free function implementation + * \param mutex_lock the lock function implementation + * \param mutex_unlock the unlock function implementation + */ +void mbedtls_threading_set_alt( void (*mutex_init)( mbedtls_threading_mutex_t * ), + void (*mutex_free)( mbedtls_threading_mutex_t * ), + int (*mutex_lock)( mbedtls_threading_mutex_t * ), + int (*mutex_unlock)( mbedtls_threading_mutex_t * ) ); + +/** + * \brief Free global mutexes. + */ +void mbedtls_threading_free_alt( void ); +#endif /* MBEDTLS_THREADING_ALT */ + +#if defined(MBEDTLS_THREADING_C) +/* + * The function pointers for mutex_init, mutex_free, mutex_ and mutex_unlock + * + * All these functions are expected to work or the result will be undefined. + */ +extern void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t *mutex ); +extern void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t *mutex ); +extern int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t *mutex ); +extern int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t *mutex ); + +/* + * Global mutexes + */ +extern mbedtls_threading_mutex_t mbedtls_threading_readdir_mutex; +extern mbedtls_threading_mutex_t mbedtls_threading_gmtime_mutex; +#endif /* MBEDTLS_THREADING_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* threading.h */ |