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/*
* Copyright © 2013-2014 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Robert Ancell <robert.ancell@canonical.com>
* Alexandros Frantzis <alexandros.frantzis@canonical.com>
*/
#ifndef USC_ASIO_DM_CONNECTION_H_
#define USC_ASIO_DM_CONNECTION_H_
#include "dm_connection.h"
#include <boost/asio.hpp>
#include <thread>
namespace usc
{
class AsioDMConnection : public DMConnection
{
public:
AsioDMConnection(
int from_dm_fd, int to_dm_fd,
std::shared_ptr<DMMessageHandler> const& dm_message_handler);
~AsioDMConnection();
void start() override;
private:
enum class USCMessageID
{
ping = 0,
pong = 1,
ready = 2,
session_connected = 3,
set_active_session = 4,
set_next_session = 5,
};
void send_ready();
void read_header();
void on_read_header(const boost::system::error_code& ec);
void on_read_payload(const boost::system::error_code& ec);
void send(USCMessageID id, std::string const& body);
boost::asio::io_service io_service;
boost::asio::posix::stream_descriptor from_dm_pipe;
boost::asio::posix::stream_descriptor to_dm_pipe;
std::thread io_thread;
std::shared_ptr<DMMessageHandler> const dm_message_handler;
static size_t const size_of_header = 4;
unsigned char message_header_bytes[size_of_header];
boost::asio::streambuf message_payload_buffer;
std::vector<char> write_buffer;
};
}
#endif /* USC_ASIO_DM_CONNECTION_H_ */
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