60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/*
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* Copyright (c) 2006-2024, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2024-04-26 Shell lockless rt_completion
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*/
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#include <rtthread.h>
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#include <rthw.h>
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#include <rtdevice.h>
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/**
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* @brief This function indicates a completion has done.
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*
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* @param completion is a pointer to a completion object.
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*/
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void rt_completion_done(struct rt_completion *completion)
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{
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rt_completion_wakeup_by_errno(completion, -1);
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}
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RTM_EXPORT(rt_completion_done);
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/**
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* @brief This function indicates a completion has done and wakeup the thread
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*
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* @param completion is a pointer to a completion object.
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* @return RT_EOK if wakeup succeed.
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* RT_EEMPTY if wakeup failure and the completion is set to completed.
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* RT_EBUSY if the completion is still in completed state
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*/
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rt_err_t rt_completion_wakeup(struct rt_completion *completion)
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{
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return rt_completion_wakeup_by_errno(completion, -1);
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}
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/**
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* @brief This function will wait for a completion, if the completion is unavailable, the thread shall wait for
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* the completion up to a specified time.
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*
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* @param completion is a pointer to a completion object.
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*
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* @param timeout is a timeout period (unit: OS ticks). If the completion is unavailable, the thread will wait for
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* the completion done up to the amount of time specified by the argument.
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* NOTE: Generally, we use the macro RT_WAITING_FOREVER to set this parameter, which means that when the
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* completion is unavailable, the thread will be waitting forever.
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*
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* @return Return the operation status. ONLY when the return value is RT_EOK, the operation is successful.
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* If the return value is any other values, it means that the completion wait failed.
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*
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* @warning This function can ONLY be called in the thread context. It MUST NOT be called in interrupt context.
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*/
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rt_err_t rt_completion_wait(struct rt_completion *completion,
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rt_int32_t timeout)
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{
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return rt_completion_wait_flags(completion, timeout, RT_UNINTERRUPTIBLE);
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}
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RTM_EXPORT(rt_completion_wait);
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