#include <stddef.h>
#include <stdlib.h>
#include <string.h>

#ifdef RINGBUFFER_THREAD_SAFE
#include <pthread.h>
#endif

#define RINGBUFFER_H

struct ringBuffer {
  void *buffer;
  int blocks;
  size_t blockSize;
  void *reader;
  void *writer;
#ifdef RINGBUFFER_THREAD_SAFE
  pthread_mutex_t mutex;
#endif
};

void ringBufferCreate(int blocks, size_t blockSize, struct ringBuffer *out);
void ringBufferDestroy(struct ringBuffer *buf);
int ringBufferRead(struct ringBuffer *buf, void *out);
void ringBufferWrite(struct ringBuffer *buf, void *in);