unsigned prepare_op(unsigned, Mode);
protected:
- virtual unsigned do_write(const char *, unsigned);
- virtual unsigned do_read(char *, unsigned);
+ virtual std::size_t do_write(const char *, std::size_t);
+ virtual std::size_t do_read(char *, std::size_t);
public:
- virtual unsigned put(char);
+ virtual std::size_t put(char);
virtual int get();
virtual const Handle &get_handle(Mode);