netpong/includes/sock.hpp

#ifndef _SOCK_CLASS
#define _SOCK_CLASS

#include <string>
#if defined(__unix__) || defined(__unix) ||(defined(__APPLE__) && defined(__MACH__))
	#include <sys/socket.h>
#endif
#ifdef _WIN32
	#include <winsock2.h>
	#include <ws2tcpip.h>
#endif

/* Global constants - can be used by children classes as return values, and by any clients to check what type the socket is of */
const int SOCK_CLIENT = 'C';
const int SOCK_SERVER = 'S';

/* Abstract class for a Socket. 'Client' and 'Server' derive from
this class, and extend the functions defined here. */
class Sock {
protected:
	int ip_ver;
	char protocol;
	int port;
	int sock_fd;
	std::string address;
	struct sockaddr_storage* dest;
	socklen_t addrlen;
	int other_socket; // The peer socket (the client if this socket is a server, and the server if this socket is a client) */

	virtual void create_socket();


public:
	/* Default constructor */
	Sock() {}

	/* Virtual destructor */
	virtual ~Sock();

	/* Regular constructor - defined in sock.cpp */
	Sock(char protocol, const char* address, int port);

	/* Method to send data in 'to_send' through the 'other_socket' socket */
	void sendAll(std::string to_send);
	
	/* Same as method above, with buffer and buffer size */
	void sendAll(char* buffer, int size);

	/* Method to receive data sent to the 'other_socket' socket */
	char* recvAll();

	/* Non-blocking receive method - calls the method above after polling for data. Returns
	an empty string if there is nothing to read. */
	char* recvAllNB();

	/* Returns socket identifier */
	int getSockFD();

	/* This is a pure virtual function (AKA an abstract function). It's purpose
	is to be redefined by the children classes (client and server). */
	virtual int get_type() = 0;
};

#endif