socket.hpp

/*
  ANCH Framework: ANother C++ Hack is a C++ framework based on C++11 standard
  Copyright (C) 2012 Vincent Lachenal
 
  This file is part of ANCH Framework.
 
  ANCH Framework is free software: you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
 
  ANCH Framework 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 Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public License
  along with ANCH Framework.  If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
 
#include <cstring>
 
#include "events/observable.hpp"
#include "network/socketEvent.hpp"
#include "network/ioException.hpp"
 
 
// Microsoft Windows operating systems defintions +
#ifdef ANCH_WINDOWS
typedef int socklen_t;
// Microsoft Windows operating systems defintions -
 
// POSIX operating systems definitions +
#elif defined ANCH_POSIX
#include <netdb.h>
#define INVALID_SOCKET -1
#define SOCKET_ERROR -1
typedef int SOCKET;
typedef struct sockaddr_in SOCKADDR_IN;
typedef struct sockaddr SOCKADDR;
#endif
// POSIX operating systems definitions -
 
 
namespace anch::network {

  enum class SocketType {
    UNKNOWN = 0,

    TCP,

    UDP,
 
#ifdef ANCH_POSIX
    POSIX,
#endif
  };

  enum class Direction {
    RECEPTION = 0,

    TRANSMISSION = 1,

    BOTH = 2,
  };

  class Socket : public anch::events::Observable<SocketEvent> {
 
  private:
    // Attributes +
    std::string _ipAddress;

    uint16_t _port;

    SocketType _type;
 
  protected:
    SOCKET _sock;

    int _backlog;

    addrinfo* _address;
    // Attributes -
 
    // Constructors +
  protected:
    Socket(SocketType type);
 
  public:
    Socket(const std::string& ipAddress, uint16_t port, SocketType type = SocketType::UNKNOWN);
    // Constructors -
 
    // Destructor +
    virtual ~Socket() noexcept;
    // Destructor -
 
  public:
    // Methods +
    virtual void bind();

    virtual void connect();

    virtual void listen();

    virtual void accept(Socket& socket);

    virtual void send(const std::string& message) = 0;

    virtual void receive(std::string& message) = 0;

    virtual void receive();

    virtual void shutdown(Direction how = Direction::BOTH);

    virtual void close() noexcept;
    // Methods -
 
  public:
    // Accessors +
    virtual int getDomain() const = 0;

    virtual int getType() const = 0;

    inline const std::string& getIpAddress() const {
      return _ipAddress;
    }

    inline void setIpAddress(const std::string& ipAddress) {
      _ipAddress = ipAddress;
    }

    inline uint16_t getPort() const {
      return _port;
    }

    inline void setIpAddress(uint16_t port) {
      _port = port;
    }

    inline anch::network::SocketType getSocketType() const {
      return _type;
    }

    inline void setSocketType(SocketType type) {
      _type = type;
    }

    inline int getBacklog() const {
      return _backlog;
    }

    inline void setBacklog(int backlog) {
      _backlog = backlog;
    }
    // Accessors -
 
  };
 
}