pinebuds/utils/kfifo/kfifo.h

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2022-08-15 04:20:27 -05:00
#ifndef KFIFO_H
#define KFIFO_H 1
#include "plat_types.h"
#if defined(__cplusplus)
extern "C" {
#endif
struct kfifo {
unsigned char *buffer; /* the buffer holding the data */
unsigned int size; /* the size of the allocated buffer */
unsigned int in; /* data is added at offset (in % size) */
unsigned int out; /* data is extracted from off. (out % size) */
};
void kfifo_init(struct kfifo *k, unsigned char *buff, unsigned int len);
unsigned int kfifo_put(struct kfifo *k, unsigned char *buff, unsigned int len);
unsigned int kfifo_get(struct kfifo *k, unsigned char *buff, unsigned int len);
unsigned int kfifo_peek(struct kfifo *k, unsigned int len_want, unsigned char **buff1, unsigned char **buff2, unsigned int *len1, unsigned int *len2);
unsigned int kfifo_peek_to_buf(struct kfifo *fifo, unsigned char *buff, unsigned int len);
unsigned int kfifo_len(struct kfifo *fifo);
#if defined(__cplusplus)
}
#endif
#endif /* KFIFO_H */