27 lines
625 B
C
27 lines
625 B
C
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#if !defined __RINGBUFFER_H
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#define __RINGBUFFER_H
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#include <inttypes.h>
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typedef struct {
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uint8_t size;
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volatile uint8_t free;
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volatile uint8_t write_idx;
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volatile uint8_t read_idx;
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void (*idle_func)(void);
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uint8_t buffer[];
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} ringbuffer_t;
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#define RB_BUFSIZE(queue_len) (sizeof(ringbuffer_t)+(queue_len))
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void ringbuf_init(void *ringbuffer, uint8_t buf_size, void (*IdleFunc)(void));
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int8_t ringbuf_get(void *ringbuffer, uint8_t *ch);
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int8_t ringbuf_get_nb(void *ringbuffer, uint8_t *ch);
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int8_t ringbuf_put_nb(void *ringbuffer, uint8_t ch);
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int8_t ringbuf_get_num_waiting(void * ringbuffer);
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#endif
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