BufferResponse Class Reference

Universal response class with internal buffer size by BUFFER_RESPONSE_SIZE. More...

Inheritance diagram for BufferResponse:

Collaboration diagram for BufferResponse:

Public Member Functions
	BufferResponse ()
int	printf (const char *format...)
	write string data to internal buffer More...
const uint8_t *	buffer () const
	return internal string buffer as array of bytes More...
int	length () const
	return length of internal string buffer More...
virtual Message_t	generator (const struct pbuf *input=nullptr) override
	Response generator, iterative returns file data. More...
Public Member Functions inherited from IResponse
	IResponse (const IResponse &)=delete
	IResponse ()
Public Member Functions inherited from LwIPClass
virtual	~LwIPClass ()

Public Attributes
const char *	response
ConstHeader	ct_header
bool	done

Additional Inherited Members
Public Types inherited from IResponse
typedef std::unique_ptr< IResponse >	unique_ptr_t
Static Public Member Functions inherited from LwIPClass
static void *	operator new (size_t size)
static void	operator delete (void *ptr)

Detailed Description

Universal response class with internal buffer size by BUFFER_RESPONSE_SIZE.

Constructor & Destructor Documentation

BufferResponse()

BufferResponse::BufferResponse

(

)

        : response(nullptr)
        , ct_header("Content-Type", "application/binary")
        , done(false) {}

Member Function Documentation

printf()

int BufferResponse::printf

(

const char *

format...

)

write string data to internal buffer

                                      {
        int rv = 0;
        va_list args;
        va_start(args, format);
        rv = vsnprintf(_buffer, BUFFER_RESPONSE_SIZE, format, args);
        va_end(args);
        return rv;
    }

buffer()

const uint8_t* BufferResponse::buffer

(

)

const

return internal string buffer as array of bytes

                                  {
        return reinterpret_cast<const uint8_t *>(_buffer);
    }

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length()

int BufferResponse::length

(

)

const

return length of internal string buffer

                       {
        return strnlen(_buffer, BUFFER_RESPONSE_SIZE);
    }

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generator()

Message_t BufferResponse::generator ( const struct pbuf *  input = nullptr )

overridevirtual

Response generator, iterative returns file data.

coroutine_fn returned BufferResponse data

Parameters

arg	pointer to BufferResponse object, which must be application function, and must be deleted by this function

Implements IResponse.

                                                            {
    //const char* dummny = "This is dummy data. ";
    Message_t msg = { nullptr, nullptr, nullptr, EOF };
 
    if (!done) {
        msg = (Message_t) { response, &ct_header, buffer(), length() };
        done = true;
    }
    return msg;
}

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Member Data Documentation

response

const char* BufferResponse::response

ct_header

ConstHeader BufferResponse::ct_header

done

bool BufferResponse::done