1 /** 2 * \file threading_helpers.h 3 * 4 * \brief This file contains the prototypes of helper functions for the purpose 5 * of testing threading. 6 */ 7 8 /* 9 * Copyright The Mbed TLS Contributors 10 * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later 11 */ 12 13 #ifndef THREADING_HELPERS_H 14 #define THREADING_HELPERS_H 15 16 #if defined MBEDTLS_THREADING_C 17 18 #include "mbedtls/private_access.h" 19 #include "mbedtls/build_info.h" 20 21 /* Most fields of publicly available structs are private and are wrapped with 22 * MBEDTLS_PRIVATE macro. This define allows tests to access the private fields 23 * directly (without using the MBEDTLS_PRIVATE wrapper). */ 24 #define MBEDTLS_ALLOW_PRIVATE_ACCESS 25 26 #define MBEDTLS_ERR_THREADING_THREAD_ERROR -0x001F 27 28 #if defined(MBEDTLS_THREADING_PTHREAD) 29 #include <pthread.h> 30 #endif /* MBEDTLS_THREADING_PTHREAD */ 31 32 #if defined(MBEDTLS_THREADING_ALT) 33 /* You should define the mbedtls_test_thread_t type in your header */ 34 #include "threading_alt.h" 35 36 /** 37 * \brief Set your alternate threading implementation 38 * function pointers for test threads. If used, this 39 * function must be called once in the main thread 40 * before any other MbedTLS function is called. 41 * 42 * \note These functions are part of the testing API only and 43 * thus not considered part of the public API of 44 * MbedTLS and thus may change without notice. 45 * 46 * \param thread_create The thread create function implementation. 47 * \param thread_join The thread join function implementation. 48 49 */ 50 void mbedtls_test_thread_set_alt(int (*thread_create)(mbedtls_test_thread_t *thread, 51 void *(*thread_func)( 52 void *), 53 void *thread_data), 54 int (*thread_join)(mbedtls_test_thread_t *thread)); 55 56 #else /* MBEDTLS_THREADING_ALT*/ 57 58 typedef struct mbedtls_test_thread_t { 59 60 #if defined(MBEDTLS_THREADING_PTHREAD) 61 pthread_t MBEDTLS_PRIVATE(thread); 62 #else /* MBEDTLS_THREADING_PTHREAD */ 63 /* Make sure this struct is always non-empty */ 64 unsigned dummy; 65 #endif 66 67 } mbedtls_test_thread_t; 68 69 #endif /* MBEDTLS_THREADING_ALT*/ 70 71 /** 72 * \brief The function pointers for thread create and thread 73 * join. 74 * 75 * \note These functions are part of the testing API only 76 * and thus not considered part of the public API of 77 * MbedTLS and thus may change without notice. 78 * 79 * \note All these functions are expected to work or 80 * the result will be undefined. 81 */ 82 extern int (*mbedtls_test_thread_create)(mbedtls_test_thread_t *thread, 83 void *(*thread_func)(void *), void *thread_data); 84 extern int (*mbedtls_test_thread_join)(mbedtls_test_thread_t *thread); 85 86 #if defined(MBEDTLS_THREADING_PTHREAD) && defined(MBEDTLS_TEST_HOOKS) 87 #define MBEDTLS_TEST_MUTEX_USAGE 88 #endif 89 90 #if defined(MBEDTLS_TEST_MUTEX_USAGE) 91 /** 92 * Activate the mutex usage verification framework. See threading_helpers.c for 93 * information. 94 */ 95 void mbedtls_test_mutex_usage_init(void); 96 97 /** 98 * Deactivate the mutex usage verification framework. See threading_helpers.c 99 * for information. 100 */ 101 void mbedtls_test_mutex_usage_end(void); 102 103 /** 104 * Call this function after executing a test case to check for mutex usage 105 * errors. 106 */ 107 void mbedtls_test_mutex_usage_check(void); 108 #endif /* MBEDTLS_TEST_MUTEX_USAGE */ 109 110 #endif /* MBEDTLS_THREADING_C */ 111 112 #endif /* THREADING_HELPERS_H */ 113
