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circular_buffer.h
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Wed, May 1, 18:16
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Fri, May 3, 18:16 (2 d)
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R2671 HHRI-software
circular_buffer.h
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#ifndef __CIRCULAR_BUFFER_H
#define __CIRCULAR_BUFFER_H
#include "../main.h"
/** @defgroup CircularBuffer Circular buffer
* @brief Bytes queue (FIFO) implemented with a circular buffer.
*
* This bytes container works as a queue, which means "first in, first out".
* Create a cb_CircularBuffer structure, and initialize it with cb_Init().
* Then, add bytes using cb_Push(), and extract them with cb_Pull().
*
* @ingroup Lib
* @addtogroup CircularBuffer
* @{
*/
/**
* @brief Circular buffer structure.
*/
typedef
struct
{
uint8_t
*
buffer
;
///< Pointer to the byte buffer.
uint16_t
bufferSize
;
///< Size of buffer.
volatile
uint16_t
readIndex
,
///< Index of the element at the front of the queue.
writeIndex
;
///< Index of the next free location at the end of the queue.
}
cb_CircularBuffer
;
void
cb_Init
(
cb_CircularBuffer
*
cb
,
uint8_t
*
buffer
,
uint16_t
bufferSize
);
uint16_t
cb_ItemsCount
(
cb_CircularBuffer
*
cb
);
bool
cb_IsEmpty
(
cb_CircularBuffer
*
cb
);
bool
cb_IsFull
(
cb_CircularBuffer
*
cb
);
void
cb_Push
(
cb_CircularBuffer
*
cb
,
uint8_t
newElem
);
uint8_t
cb_Pull
(
cb_CircularBuffer
*
cb
);
/**
* @}
*/
#endif
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