tobudos-kernel/core/include/tos_time.h

115 lines
3.2 KiB
C

/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
#ifndef _TOS_TIME_H_
#define _TOS_TIME_H_
__CDECLS_BEGIN
// if you wanna pend for something forever, use TOS_TIME_FOREVER
#define TOS_TIME_FOREVER (k_tick_t)(-1)
// if you don't wanna wait when you pend nothing, use TOS_TIME_NOWAIT
#define TOS_TIME_NOWAIT (k_tick_t)0u
// those two are not for you, for kernel only.
#define K_TIME_MILLISEC_PER_SEC 1000u
#define K_TIME_MAX (k_tick_t)(TOS_TIME_FOREVER - 1)
/**
* @brief Get system tick.
* Get the number of ticks since boot.
*
* @attention None
*
* @param None
*
* @return tick count since boot
*/
__API__ k_tick_t tos_systick_get(void);
/**
* @brief Set system tick.
* Set the number of ticks.
*
* @attention None
*
* @param tick systick count to set
*
* @return None
*/
__API__ void tos_systick_set(k_tick_t tick);
/**
* @brief Convert ticks to milliseconds.
* Convert tick to millisecond.
*
* @attention None
*
* @param[in] tick tick to convert.
*
* @return milliseconds equals to the ticks.
*/
__API__ k_time_t tos_tick2millisec(k_tick_t tick);
/**
* @brief Convert milliseconds to ticks.
* Convert milliseconds to ticks.
*
* @attention None
*
* @param[in] millisec millisecond to convert.
*
* @return ticks equals to the millisecond.
*/
__API__ k_tick_t tos_millisec2tick(k_time_t millisec);
/**
* @brief Sleep current task.
* Sleep for a specified amount of milliseconds.
*
* @attention None
*
* @param[in] millisec amount of milliseconds to delay.
*
* @return errcode
* @retval #K_ERR_DELAY_ZERO millisec is zero.
* @retval #K_ERR_NONE return successfully.
*/
__API__ k_err_t tos_sleep_ms(k_time_t millisec);
/**
* @brief Sleep current task.
* Sleep for a specified amount of time.
*
* @attention None
*
* @param[in] hour amount of hours.
* @param[in] minute amount of minutes.
* @param[in] second amount of seconds.
* @param[in] millisec amount of milliseconds.
*
* @return errcode
* @retval #K_ERR_DELAY_ZERO time is zero.
* @retval #K_ERR_NONE return successfully.
*/
__API__ k_err_t tos_sleep_hmsm(k_time_t hour, k_time_t minute, k_time_t second, k_time_t millisec);
__CDECLS_END
#endif /* _TOS_TIME_H_ */