si_communication/fixed_command.h at master · arnost00/si_communication · GitHub

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//  (C) Copyright 2009-2011 Vit Kasal
//
//  Distributed under the Boost Software License, Version 1.0.
//  (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#pragma once

#include "si_constants.h"
#include "tuple_type.h"
#include "sequence_position.h"
#include "protocol_encoders.h"
#include "command_interface.h"

#include <boost/shared_array.hpp>

namespace si
{
	template<typename command_tt
				, typename parameters_tt = boost::mpl::deque<>
				, bool control_sequence_tt = false
				> struct fixed_command
			: public parameters_array<parameters_tt>
			, public command_interface
	{
		typedef typename command_tt::value_type command_t;
		BOOST_STATIC_CONSTANT(command_t, code = command_tt::value);

		BOOST_STATIC_CONSTANT(bool, control_sequence = control_sequence_tt);

		typedef parameters_tt command_template_type;
		typedef typename create_parameter_sequence<parameters_tt>::type command_parameters_type;
		//		typedef typename boostext::tuple_type<typename create_parameter_sequence<parameters_tt>::type>::type parameters_tuple_type;

		typedef parameters_array<parameters_tt > param_array_type;
		typedef boost::shared_ptr<fixed_command> pointer;

		typedef fixed_command this_type;
		template<typename parameter_tt>struct element
		{
			typedef boost::mpl::integral_c<unsigned, boostext::sequence_position<typename parameter_tt::parameter_type, command_parameters_type>::value> type;
		};

		template<typename top_of_tt, typename id_tt> struct get_top_part
		{
			typedef boost::mpl::integral_c<id_tt, (top_of_tt::value >> (sizeof(id_tt) < sizeof(command_t)? 8*(sizeof(command_t) - sizeof(id_tt)): 0 ))> type;
		};
		virtual id_type get_id(protocols::id<>::value_type = protocols::id<>::value)
		{
			return get_top_part<command_tt, id_type>::type::value;
		}
		virtual void get_data(std::size_t &size, data_type& data, protocols::id<>::value_type = protocols::id<>::value)
		{
			size = get_size();
			data.reset(new boost::uint8_t[size]);
			data_type::element_type *it = data.get();

			raw_data_writer<this_type>::write_data(this, size, it);

			return;
		}

		std::size_t get_size(protocols::id<>::value_type = protocols::id<>::value)
		{
			return parameters_size_counter<parameters_tt, this_type>::get_size(this);
		}

		virtual bool is_control_sequence()
		{
			return control_sequence_tt;
		}

		virtual bool accept_data(std::size_t size, data_type data)
		{

			boost::add_pointer<data_type::element_type>::type it = data.get();
			return raw_data_reader<this_type>::read_data(this, size, it);
			//			return read_data(size, it);
		}
		/*		virtual bool can_accept_data(std::size_t size, data_type data)
		{
			boost::add_pointer<data_type::element_type>::type it = data.get();
//			return raw_data_reader<this_type>::can_read_data(this, size, it);
			return can_accept_data(size, it);
		}*/
		/*		static inline bool can_accept_data_static(std::size_t size, data_type data)
		{
			boost::add_pointer<data_type::element_type>::type it = data.get();
			return raw_data_reader<this_type>::can_read_data_static(size, it);
		}
*/
	};
};//namespace si