src/ringbuf.h

   1 #ifndef RINGBUF_H
   2 #define RINGBUF_H
   3
   4 #include <stdlib.h>
   5
   6 typedef struct ll_ringbuffer ll_ringbuffer_t;
   7 typedef struct ll_ringbuffer_data {
   8     char *buf;
   9     size_t len;
  10 } ll_ringbuffer_data_t;
  11
  12 ll_ringbuffer_t *ll_ringbuffer_create(size_t sz, size_t elem_sz);
  13 void ll_ringbuffer_free(ll_ringbuffer_t *rb);
  14 void ll_ringbuffer_get_read_vector(const ll_ringbuffer_t *rb, ll_ringbuffer_data_t *vec);
  15 void ll_ringbuffer_get_write_vector(const ll_ringbuffer_t *rb, ll_ringbuffer_data_t *vec);
  16 size_t ll_ringbuffer_read(ll_ringbuffer_t *rb, char *dest, size_t cnt);
  17 size_t ll_ringbuffer_peek(ll_ringbuffer_t *rb, char *dest, size_t cnt);
  18 void ll_ringbuffer_read_advance(ll_ringbuffer_t *rb, size_t cnt);
  19 size_t ll_ringbuffer_read_space(const ll_ringbuffer_t *rb);
  20 int ll_ringbuffer_mlock(ll_ringbuffer_t *rb);
  21 void ll_ringbuffer_reset(ll_ringbuffer_t *rb);
  22 size_t ll_ringbuffer_write(ll_ringbuffer_t *rb, const char *src, size_t cnt);
  23 void ll_ringbuffer_write_advance(ll_ringbuffer_t *rb, size_t cnt);
  24 size_t ll_ringbuffer_write_space(const ll_ringbuffer_t *rb);
  25
  26 #endif /* RINGBUF_H */