#pragma once

#include <SDL_net.h>

/**

# UDPpacketVBuffer

Create your `UDPsocket` somewhere:

	UDPsocket sock;
	...

You have a buffer:

	FileIO f (path, "r");
	std::string buf = f.ReadToString ();

Allocate a setup packet and set `len` to your MTU, set your destination `address`, and the destination `channel`.
I'm not sure -1 will work as a channel, be sure to set it to your active channel.

	UDPpacket* packet = SDL_AllocPacket (buf.length ());
	packet->len = DEFAULT_MAX_PACKET_SIZE;
	packet->channel = -1;
	packet->address = GetPeerAddress (sock, packet->channel);

Use `UDPpacketVBuffer` wrapper to send the data, the destructor will automatically free the `UDPpacket**`:

	UDPpacketVBuffer packetV (&buf[0], buf.length ());
	packetV.Send (sock);

Then free the leftover setup packet:

	SDLNet_FreePacket (packet);

*/
class UDPpacketVBuffer
{
	int npackets;
	UDPpacket** packetV;
	public:
		UDPpacketVBuffer (UDPpacket* src, const void* buf, const size_t size);
		~UDPpacketVBuffer (void)
		{
			if (packetV)
			{
				SDLNet_FreePacketV (packetV);
				packetV = NULL;
			}
		}
		int Send (UDPsocket sock)
		{
			int numsent = 0;
			if (packetV)
			{
				numsent = SDLNet_UDP_SendV (sock, packetV, npackets);
			}
			return numsent;
		}
};