#ifndef BUFFER_HH
#define BUFFER_HH

#include "ro_buffer.hh"

#include <memory>

class Buffer : public RoBuffer {
public:
  static std::unique_ptr<Buffer> fixed(size_t size);
  static std::unique_ptr<Buffer> growing(size_t base_size, size_t max_size);
  // Acts as /dev/null, ie always empty, can write anything to it.
  static std::unique_ptr<Buffer> null();

  virtual bool full() const = 0;

  virtual void clear() = 0;

  virtual char* wbuf(size_t request, size_t& avail) = 0;
  virtual void wcommit(size_t bytes) = 0;

  static size_t write(Buffer* buf, void const* data, size_t len);
};

#endif  // BUFFER_HH