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1 | /*
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2 | * RingBuffer.h
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3 | *
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4 | * Created: 11.05.2021 11:14:37
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5 | * Author: Admin
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6 | */
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7 | #ifndef RINGBUFFER_H_
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8 | #define RINGBUFFER_H_
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9 |
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10 | #include <stdint.h>
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11 |
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12 | typedef struct {
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13 | const uint16_t BUF_SZ;
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14 | uint16_t tail; // "óêàçàòåëü" õâîñòà áóôåðà
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15 | uint16_t head; // "óêàçàòåëü" ãîëîâû áóôåðà
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16 | volatile uint16_t count; // ñ÷åò÷èê ñèìâîëîâ
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17 | uint16_t *data;
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18 | } RingBuf16bit_ptr_typeDef;
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19 |
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20 | typedef struct {
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21 | const uint16_t BUF_SZ;
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22 | uint16_t tail; // "óêàçàòåëü" õâîñòà áóôåðà
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23 | uint16_t head; // "óêàçàòåëü" ãîëîâû áóôåðà
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24 | volatile uint16_t count; // ñ÷åò÷èê ñèìâîëîâ
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25 | uint8_t *data;
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26 | } RingBuf8bit_ptr_typeDef;
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27 |
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28 | #define dRBuf_Count(us) ((us)->count)
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29 | #define dRBuf_Full(us) (((((us)->head+1)&((us)->BUF_SZ-1)) == (us)->tail) && ((us)->count != 0))
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30 | #define dRBuf_Empty(us) (((us)->count) == (0))
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31 | #define dRBuf_Put(us, buf, sym) {buf[((us)->head)]=sym; (us)->head = (((us)->head + 1) & ((us)->BUF_SZ - 1)); (us)->count++;}
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32 | #define dRBuf_PutF(us, buf, sym) {if (!(dRBuf_Full(us))) dRBuf_Put(us, buf, sym);}
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33 |
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34 | #define dRBuf_Get(us, buf, sym) {sym = buf[((us)->tail)]; (us)->tail = (((us)->tail + 1) & ( (us)->BUF_SZ - 1)); (us)->count--;}
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35 | #define dRBuf_GetE(us, buf, sym) {if (!(dRBuf_Empty(us))) dRBuf_Get(us, buf, sym);}
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36 |
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37 | #endif /* RINGBUFFER_H_ */
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