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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2015 ZeroTier Networks
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#ifndef ZT_SOCKETMANAGER_HPP
#define ZT_SOCKETMANAGER_HPP
#include <stdio.h>
#include <stdlib.h>
#include <map>
#include <stdexcept>
#include "Constants.hpp"
#include "InetAddress.hpp"
#include "Buffer.hpp"
#include "NonCopyable.hpp"
#include "Socket.hpp"
namespace ZeroTier {
/**
* Socket I/O implementation
*/
class SocketManager : NonCopyable
{
public:
SocketManager() {}
virtual ~SocketManager() {}
/**
* Send a message to a remote peer
*
* @param to Destination address
* @param tcp Use TCP?
* @param autoConnectTcp If true, automatically initiate TCP connection if there is none
* @param msg Message to send
* @param msglen Length of message
*/
virtual bool send(
const InetAddress &to,
bool tcp,
bool autoConnectTcp,
const void *msg,
unsigned int msglen) = 0;
/**
* Send a message to a remote peer via UDP (shortcut for setting both TCP params to false in send)
*
* @param to Destination address
* @param msg Message to send
* @param msglen Length of message
*/
inline bool sendUdp(
const InetAddress &to,
const void *msg,
unsigned int msglen) { return send(to,false,false,msg,msglen); }
/**
* Perform I/O polling operation (e.g. select())
*
* If called concurrently, one will block until the other completes.
*
* @param timeout Timeout in milliseconds, may return sooner if whack() is called
* @param handler Packet data handler
* @param arg Void argument to packet data handler
*/
virtual void poll(
unsigned long timeout,
void (*handler)(const SharedPtr<Socket> &,void *,const InetAddress &,Buffer<ZT_SOCKET_MAX_MESSAGE_LEN> &),
void *arg) = 0;
/**
* Cause current or next blocking poll() operation to timeout immediately
*/
virtual void whack() = 0;
/**
* Close TCP sockets
*/
virtual void closeTcpSockets() = 0;
};
} // namespace ZeroTier
#endif
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