ascii_layer.hpp

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#ifndef LIBFILEZILLA_ASCII_LAYER_HEADER
#define LIBFILEZILLA_ASCII_LAYER_HEADER
 
#include "buffer.hpp"
#include "socket.hpp"
 
#include <optional>

 
namespace fz {
class FZ_PUBLIC_SYMBOL ascii_layer final : public socket_layer, protected fz::event_handler
{
public:
    ascii_layer(event_loop& loop, event_handler* handler, socket_interface& next_layer);
    virtual ~ascii_layer();
 
    virtual int read(void *buffer, unsigned int size, int& error) override;
    virtual int write(void const* buffer, unsigned int size, int& error) override;
 
    virtual int shutdown() override;
 
    virtual void set_event_handler(event_handler* handler, fz::socket_event_flag retrigger_block = fz::socket_event_flag{}) override;
 
private:
    virtual FZ_PRIVATE_SYMBOL void operator()(fz::event_base const& ev) override;
    void FZ_PRIVATE_SYMBOL on_socket_event(socket_event_source* s, socket_event_flag t, int error);
 
    std::optional<uint8_t> tmp_read_;
    buffer buffer_;
    bool was_cr_{};
    bool write_blocked_by_send_buffer_{};
    bool waiting_read_{};
};
}
 
#endif