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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/**
* Copyright (C) 2013 Regents of the University of California.
* @author: Jeff Thompson <jefft0@remap.ucla.edu>
* See COPYING for copyright and distribution information.
*/
#ifndef NDN_TRANSPORT_HPP
#define NDN_TRANSPORT_HPP
#include "../common.hpp"
#include "../encoding/block.hpp"
namespace ndn {
class Transport {
public:
struct Error : public std::runtime_error { inline Error(const boost::system::error_code &code, const std::string &msg); };
typedef ptr_lib::function<void (const Block &wire)> ReceiveCallback;
typedef ptr_lib::function<void ()> ErrorCallback;
inline
Transport();
inline virtual
~Transport();
/**
* Connect transport
*
* @throws If connection cannot be established
*/
inline virtual void
connect(boost::asio::io_service &io_service,
const ReceiveCallback &receiveCallback);
/**
* Close the connection.
*/
virtual void
close() = 0;
/**
* Set data to the host
* @param data A pointer to the buffer of data to send.
* @param dataLength The number of bytes in data.
*/
virtual void
send(const Block &wire) = 0;
inline bool
isConnected();
protected:
inline void
receive(const Block &wire);
protected:
boost::asio::io_service *ioService_;
bool isConnected_;
ReceiveCallback receiveCallback_;
};
inline
Transport::Transport()
: ioService_(0)
, isConnected_(false)
{
}
inline Transport::Error::Error(const boost::system::error_code &code, const std::string &msg)
: std::runtime_error(msg + (code.value() ? " (" + code.category().message(code.value()) + ")" : ""))
{
}
inline
Transport::~Transport()
{
}
inline void
Transport::connect(boost::asio::io_service &ioService,
const ReceiveCallback &receiveCallback)
{
ioService_ = &ioService;
receiveCallback_ = receiveCallback;
}
inline bool
Transport::isConnected()
{
return isConnected_;
}
inline void
Transport::receive(const Block &wire)
{
receiveCallback_(wire);
}
}
#endif