socket.h

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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
 
This program 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 2.1 of the License, or
(at your option) any later version.
 
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 Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
 
#pragma once
 
#include <ostream>
#include <cstring>
#include "address.h"
#include "irrlichttypes.h"
#include "networkexceptions.h"
 
extern bool socket_enable_debug_output;
 
void sockets_init();
void sockets_cleanup();
 
class UDPSocket
{
public:
    UDPSocket() = default;
    UDPSocket(bool ipv6); // calls init()
    ~UDPSocket();
    bool init(bool ipv6, bool noExceptions = false);
 
    void Bind(Address addr);
 
    void Send(const Address &destination, const void *data, int size);
    // Returns -1 if there is no data
    int Receive(Address &sender, void *data, int size);
    void setTimeoutMs(int timeout_ms);
    // Returns true if there is data, false if timeout occurred
    bool WaitData(int timeout_ms);
 
    // Debugging purposes only
    int GetHandle() const { return m_handle; };
 
private:
    int m_handle = -1;
    int m_timeout_ms = -1;
    unsigned short m_addr_family = 0;
};