diff options
Diffstat (limited to 'lib/mbedtls-2.27.0/library/threading.c')
| -rw-r--r-- | lib/mbedtls-2.27.0/library/threading.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/lib/mbedtls-2.27.0/library/threading.c b/lib/mbedtls-2.27.0/library/threading.c deleted file mode 100644 index 2de117f..0000000 --- a/lib/mbedtls-2.27.0/library/threading.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * Threading abstraction layer - * - * Copyright The Mbed TLS Contributors - * 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. - */ - -/* - * Ensure gmtime_r is available even with -std=c99; must be defined before - * config.h, which pulls in glibc's features.h. Harmless on other platforms. - */ -#if !defined(_POSIX_C_SOURCE) -#define _POSIX_C_SOURCE 200112L -#endif - -#include "common.h" - -#if defined(MBEDTLS_THREADING_C) - -#include "mbedtls/threading.h" - -#if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_PLATFORM_GMTIME_R_ALT) - -#if !defined(_WIN32) && (defined(unix) || \ - defined(__unix) || defined(__unix__) || (defined(__APPLE__) && \ - defined(__MACH__))) -#include <unistd.h> -#endif /* !_WIN32 && (unix || __unix || __unix__ || - * (__APPLE__ && __MACH__)) */ - -#if !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \ - ( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \ - _POSIX_THREAD_SAFE_FUNCTIONS >= 200112L ) ) -/* - * This is a convenience shorthand macro to avoid checking the long - * preprocessor conditions above. Ideally, we could expose this macro in - * platform_util.h and simply use it in platform_util.c, threading.c and - * threading.h. However, this macro is not part of the Mbed TLS public API, so - * we keep it private by only defining it in this file - */ - -#if ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) ) -#define THREADING_USE_GMTIME -#endif /* ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) ) */ - -#endif /* !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \ - ( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \ - _POSIX_THREAD_SAFE_FUNCTIONS >= 200112L ) ) */ - -#endif /* MBEDTLS_HAVE_TIME_DATE && !MBEDTLS_PLATFORM_GMTIME_R_ALT */ - -#if defined(MBEDTLS_THREADING_PTHREAD) -static void threading_mutex_init_pthread( mbedtls_threading_mutex_t *mutex ) -{ - if( mutex == NULL ) - return; - - /* A nonzero value of is_valid indicates a successfully initialized - * mutex. This is a workaround for not being able to return an error - * code for this function. The lock/unlock functions return an error - * if is_valid is nonzero. The Mbed TLS unit test code uses this field - * to distinguish more states of the mutex; see - * tests/src/threading_helpers for details. */ - mutex->is_valid = pthread_mutex_init( &mutex->mutex, NULL ) == 0; -} - -static void threading_mutex_free_pthread( mbedtls_threading_mutex_t *mutex ) -{ - if( mutex == NULL || !mutex->is_valid ) - return; - - (void) pthread_mutex_destroy( &mutex->mutex ); - mutex->is_valid = 0; -} - -static int threading_mutex_lock_pthread( mbedtls_threading_mutex_t *mutex ) -{ - if( mutex == NULL || ! mutex->is_valid ) - return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA ); - - if( pthread_mutex_lock( &mutex->mutex ) != 0 ) - return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); - - return( 0 ); -} - -static int threading_mutex_unlock_pthread( mbedtls_threading_mutex_t *mutex ) -{ - if( mutex == NULL || ! mutex->is_valid ) - return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA ); - - if( pthread_mutex_unlock( &mutex->mutex ) != 0 ) - return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); - - return( 0 ); -} - -void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_init_pthread; -void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_free_pthread; -int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_lock_pthread; -int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_unlock_pthread; - -/* - * With phtreads we can statically initialize mutexes - */ -#define MUTEX_INIT = { PTHREAD_MUTEX_INITIALIZER, 1 } - -#endif /* MBEDTLS_THREADING_PTHREAD */ - -#if defined(MBEDTLS_THREADING_ALT) -static int threading_mutex_fail( mbedtls_threading_mutex_t *mutex ) -{ - ((void) mutex ); - return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA ); -} -static void threading_mutex_dummy( mbedtls_threading_mutex_t *mutex ) -{ - ((void) mutex ); - return; -} - -void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy; -void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy; -int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail; -int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail; - -/* - * Set functions pointers and initialize global mutexes - */ -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 * ) ) -{ - mbedtls_mutex_init = mutex_init; - mbedtls_mutex_free = mutex_free; - mbedtls_mutex_lock = mutex_lock; - mbedtls_mutex_unlock = mutex_unlock; - -#if defined(MBEDTLS_FS_IO) - mbedtls_mutex_init( &mbedtls_threading_readdir_mutex ); -#endif -#if defined(THREADING_USE_GMTIME) - mbedtls_mutex_init( &mbedtls_threading_gmtime_mutex ); -#endif -} - -/* - * Free global mutexes - */ -void mbedtls_threading_free_alt( void ) -{ -#if defined(MBEDTLS_FS_IO) - mbedtls_mutex_free( &mbedtls_threading_readdir_mutex ); -#endif -#if defined(THREADING_USE_GMTIME) - mbedtls_mutex_free( &mbedtls_threading_gmtime_mutex ); -#endif -} -#endif /* MBEDTLS_THREADING_ALT */ - -/* - * Define global mutexes - */ -#ifndef MUTEX_INIT -#define MUTEX_INIT -#endif -#if defined(MBEDTLS_FS_IO) -mbedtls_threading_mutex_t mbedtls_threading_readdir_mutex MUTEX_INIT; -#endif -#if defined(THREADING_USE_GMTIME) -mbedtls_threading_mutex_t mbedtls_threading_gmtime_mutex MUTEX_INIT; -#endif - -#endif /* MBEDTLS_THREADING_C */ |