d8e1cd7a10
_WIN32_WINNT redefinition fix is no longer needed as it was merged upstream. PR 1453 is still not merged, diff updated to current state.
140 lines
4.1 KiB
C
140 lines
4.1 KiB
C
/*
|
|
* 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)
|
|
*/
|
|
|
|
#if !defined(MBEDTLS_CONFIG_FILE)
|
|
#include "mbedtls/config.h"
|
|
#else
|
|
#include MBEDTLS_CONFIG_FILE
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_THREADING_C)
|
|
|
|
#include "mbedtls/threading.h"
|
|
|
|
#if defined(MBEDTLS_THREADING_PTHREAD)
|
|
static void threading_mutex_init_pthread( mbedtls_threading_mutex_t *mutex )
|
|
{
|
|
if( mutex == NULL )
|
|
return;
|
|
|
|
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
|
|
}
|
|
|
|
/*
|
|
* Free global mutexes
|
|
*/
|
|
void mbedtls_threading_free_alt( void )
|
|
{
|
|
#if defined(MBEDTLS_FS_IO)
|
|
mbedtls_mutex_free( &mbedtls_threading_readdir_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
|
|
|
|
#endif /* MBEDTLS_THREADING_C */
|