message.hpp

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#ifndef UG_HOLE_PUNCH_MESSAGE_HPP
#define UG_HOLE_PUNCH_MESSAGE_HPP
 
#include <string_view>
#include <functional>
#include <asio.hpp>
#include "status_code.hpp"
 
class Message{
public:
        using CompletionCallback = std::function<void(CompletionStatus)>;
        Message() = default;
 
        void async_readMsg(asio::ip::tcp::socket& socket,
                        CompletionCallback onComplete);
 
        std::string_view getStr() const;
 
        void setStr(std::string_view msg);
        void async_sendMsg(asio::ip::tcp::socket& socket,
                        CompletionCallback onComplete);
 
        size_t getSize() const { return size; }
        bool empty() const { return size == 0; }
        bool isSendingNow() const { return sendingNow; }
        void clear();
 
private:
        void async_readBody(asio::ip::tcp::socket& socket,
                        CompletionCallback onComplete,
                        const std::error_code& ec, size_t readLen);
 
        void async_readBodyComplete(CompletionCallback onComplete,
                        const std::error_code& ec, size_t readLen);
 
        void async_sendComplete(CompletionCallback onComplete,
                        const std::error_code& ec, size_t sentLen);
 
        size_t size = 0;
 
        bool sendingNow = false;
 
        static constexpr size_t headerSize = 5;
        static constexpr size_t bodySize = 2048;
        char data[headerSize + bodySize];
};
 
#endif