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/**
* @file os_errno.h
* @author ALLWINNERTECH IOT WLAN Team
*/
/*
* Copyright (C) 2017 ALLWINNERTECH TECHNOLOGY CO., LTD. All rights reserved.
*
* 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 above 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. Neither the name of ALLWINNERTECH TECHNOLOGY CO., LTD. nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 COPYRIGHT
* OWNER 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.
*/
#ifndef _KERNEL_OS_FREERTOS_OS_ERRNO_H_
#define _KERNEL_OS_FREERTOS_OS_ERRNO_H_
#include "_os_common.h"
#include "task.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
* Thread safe errno handling for FreeRTOS
*/
#if (configNUM_THREAD_LOCAL_STORAGE_POINTERS != 0)
#define OS_ERRNO_LOCATION_IDX 0
/**
* @brief Get error number of the current thread
* @return Error number of the current thread
*/
static __always_inline int OS_GetErrno(void)
{
return (int)pvTaskGetThreadLocalStoragePointer(NULL, OS_ERRNO_LOCATION_IDX);
}
/**
* @brief Set error number of the current thread
* @param[in] Error number to be set
* @return None
*/
static __always_inline void OS_SetErrno(int err)
{
vTaskSetThreadLocalStoragePointer(NULL, OS_ERRNO_LOCATION_IDX, (void *)err);
}
#endif /* configNUM_THREAD_LOCAL_STORAGE_POINTERS */
#ifdef __cplusplus
}
#endif
#endif /* _KERNEL_OS_FREERTOS_OS_ERRNO_H_ */
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