37 lines
971 B
C
37 lines
971 B
C
#ifndef __CIRCULAT_BUFFER__
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#define __CIRCULAT_BUFFER__
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <stdio.h>
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typedef enum
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{
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CB_OK = 0x00,
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CB_ERROR = -0x01,
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CB_EMPTY = -0x02,
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CB_FULL = -0x03
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} CB_StatusTypeDef;
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typedef struct
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{
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void *buffer; // data buffer
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void *buffer_end; // end of data buffer
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uint16_t capacity; // maximum number of items in the buffer
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uint16_t count; // number of items in the buffer
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uint8_t item_size; // size of each item in the buffer
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void *head; // pointer to head
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void *tail; // pointer to tail
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} CB_TypeDef;
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CB_StatusTypeDef cb_init(CB_TypeDef *cb, void *buffer, uint16_t capacity, uint8_t item_size);
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CB_StatusTypeDef cb_push_back(CB_TypeDef *cb, const void *item);
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CB_StatusTypeDef cb_pop_front(CB_TypeDef *cb, void *item);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __CIRCULAT_BUFFER__ */ |