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@ -22,17 +22,21 @@ struct rt_data_item
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};
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/**
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* @brief This function will initialize a data queue.Calling this function will
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* initialize the data queue control block and set the notification callback function.
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* @brief This function will initialize a data queue.Calling this function will
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* initialize the data queue control block and set the notification callback function.
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*
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* @param queue The data queue object
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* @param size The maximum number of data in the data queue
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* @param lwm Low water mark, when the number of data in the data queue is less than this value,
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* will wake up the thread waiting for write data.
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* @param evt_notify The notification callback function
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* @param queue is a pointer to a data queue object.
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*
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* @return the operation status, RT_EOK on successful,
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* RT_ENOMEM on insufficient memory allocation failed.
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* @param size is the maximum number of data in the data queue.
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*
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* @param lwm is low water mark.
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* When the number of data in the data queue is less than this value,will
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* wake up the thread waiting for write data.
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*
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* @param evt_notify is the notification callback function.
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*
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* @return Return the operation status. When the return value is RT_EOK, the initialization is successful.
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* When the return value is RT_ENOMEM, it means insufficient memory allocation failed.
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*/
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rt_err_t
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rt_data_queue_init(struct rt_data_queue *queue,
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@ -68,15 +72,18 @@ rt_data_queue_init(struct rt_data_queue *queue,
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RTM_EXPORT(rt_data_queue_init);
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/**
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* @brief This function will write data to the data queue. If the data queue is full,
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* the thread will suspend for the specified amount of time.
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* @brief This function will write data to the data queue. If the data queue is full,
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* the thread will suspend for the specified amount of time.
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*
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* @param queue The data queue object
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* @param data_ptr The buffer pointer of the data to be written
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* @param size The size in bytes of the data to be written
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* @param timeout The waiting time
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* @param queue is a pointer to a data queue object.
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* .
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* @param data_ptr is the buffer pointer of the data to be written.
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*
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* @return the operation status, RT_EOK on successful
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* @param size is the size in bytes of the data to be written.
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*
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* @param timeout is the waiting time.
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*
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* @return Return the operation status. When the return value is RT_EOK, the operation is successful.
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*/
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rt_err_t rt_data_queue_push(struct rt_data_queue *queue,
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const void *data_ptr,
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@ -178,18 +185,21 @@ __exit:
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RTM_EXPORT(rt_data_queue_push);
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/**
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* @brief This function will pop data from the data queue. If the data queue is empty,
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* the thread will suspend for the specified amount of time.
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* @brief This function will pop data from the data queue. If the data queue is empty,the thread
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* will suspend for the specified amount of time.
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*
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* @attention when the number of data in the data queue is less than lwm(low water mark),
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* will wake up the thread waiting for write data.
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* @note when the number of data in the data queue is less than lwm(low water mark),will
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* wake up the thread waiting for write data.
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*
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* @param queue The data queue object
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* @param data_ptr The buffer pointer of the data to be fetched
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* @param size The size in bytes of the data to be fetched
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* @param timeout The waiting time
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* @param queue is a pointer to a data queue object.
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*
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* @return Operation status, RT_EOK on successful, RT_ETIMEOUT on timeout.
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* @param data_ptr is the buffer pointer of the data to be fetched.
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*
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* @param size is the size in bytes of the data to be fetched.
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*
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* @param timeout is the waiting time.
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*
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* @return Return the operation status. When the return value is RT_EOK, the operation is successful.
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*/
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rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
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const void** data_ptr,
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@ -303,13 +313,15 @@ __exit:
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RTM_EXPORT(rt_data_queue_pop);
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/**
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* @brief This function will fetching but retaining data in the data queue.
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* @brief This function will fetching but retaining data in the data queue.
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*
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* @param queue The data queue object
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* @param data_ptr The buffer pointer of the data to be fetched
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* @param size The size in bytes of the data to be fetched
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* @param queue is a pointer to a data queue object.
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*
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* @return The operation status, RT_EOK on successful
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* @param data_ptr is the buffer pointer of the data to be fetched.
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*
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* @param size is the size in bytes of the data to be fetched.
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*
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* @return Return the operation status. When the return value is RT_EOK, the operation is successful.
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*/
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rt_err_t rt_data_queue_peek(struct rt_data_queue *queue,
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const void** data_ptr,
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@ -337,10 +349,12 @@ rt_err_t rt_data_queue_peek(struct rt_data_queue *queue,
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RTM_EXPORT(rt_data_queue_peek);
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/**
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* @brief Reset a data queue. Calling this function will wake up all threads on the data queue
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* that are hanging and waiting.
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* @brief This function will reset a data queue.
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*
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* @param queue The data queue object
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* @note Calling this function will wake up all threads on the data queue
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* that are hanging and waiting.
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*
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* @param queue is a pointer to a data queue object.
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*/
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void rt_data_queue_reset(struct rt_data_queue *queue)
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{
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@ -416,11 +430,11 @@ void rt_data_queue_reset(struct rt_data_queue *queue)
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RTM_EXPORT(rt_data_queue_reset);
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/**
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* @brief Deinit a data queue.
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* @brief This function will deinit a data queue.
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*
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* @param queue The data queue object
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* @param queue is a pointer to a data queue object.
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*
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* @return operation status, RT_EOK on successful.
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* @return Return the operation status. When the return value is RT_EOK, the operation is successful.
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*/
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rt_err_t rt_data_queue_deinit(struct rt_data_queue *queue)
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{
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@ -443,10 +457,11 @@ rt_err_t rt_data_queue_deinit(struct rt_data_queue *queue)
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RTM_EXPORT(rt_data_queue_deinit);
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/**
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* @brief This function get the number of data in the data queue.
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* @brief This function will get the number of data in the data queue.
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*
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* @param queue The data queue object
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* @return The number of data in the data queue
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* @param queue is a pointer to a data queue object.
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*
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* @return Return the number of data in the data queue.
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*/
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rt_uint16_t rt_data_queue_len(struct rt_data_queue *queue)
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{
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