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/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2015 ZeroTier, Inc.
*
* 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_NATIVESOCKETMANAGER_HPP
#define ZT_NATIVESOCKETMANAGER_HPP
#include <stdio.h>
#include <stdlib.h>
#include <map>
#include <stdexcept>
#include "../node/Constants.hpp"
#include "../node/SharedPtr.hpp"
#include "../node/Mutex.hpp"
#include "../node/SocketManager.hpp"
#include "../node/Socket.hpp"
#ifdef __WINDOWS__
#include <WinSock2.h>
#include <WS2tcpip.h>
#include <Windows.h>
#else
#include <unistd.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/select.h>
#endif
namespace ZeroTier {
class NativeSocket;
class NativeUdpSocket;
class NativeTcpSocket;
/**
* Native socket manager for Unix and Windows
*/
class NativeSocketManager : public SocketManager
{
friend class NativeUdpSocket;
friend class NativeTcpSocket;
public:
NativeSocketManager(int localUdpPort,int localTcpPort);
virtual ~NativeSocketManager();
virtual bool send(const InetAddress &to,bool tcp,bool autoConnectTcp,const void *msg,unsigned int msglen);
virtual void poll(unsigned long timeout,void (*handler)(const SharedPtr<Socket> &,void *,const InetAddress &,Buffer<ZT_SOCKET_MAX_MESSAGE_LEN> &),void *arg);
virtual void whack();
virtual void closeTcpSockets();
private:
// Used by TcpSocket to register/unregister for write availability notification
void _startNotifyWrite(const NativeSocket *sock);
void _stopNotifyWrite(const NativeSocket *sock);
// Called in SocketManager destructor or in constructor cleanup before exception throwing
void _closeSockets();
// Called in SocketManager to recompute _nfds for select() based implementation
void _updateNfds();
#ifdef __WINDOWS__
SOCKET _whackSendPipe;
SOCKET _whackReceivePipe;
SOCKET _tcpV4ListenSocket;
SOCKET _tcpV6ListenSocket;
#else
int _whackSendPipe;
int _whackReceivePipe;
int _tcpV4ListenSocket;
int _tcpV6ListenSocket;
#endif
Mutex _whackSendPipe_m;
SharedPtr<Socket> _udpV4Socket;
SharedPtr<Socket> _udpV6Socket;
fd_set _readfds;
fd_set _writefds;
volatile int _nfds;
Mutex _fdSetLock;
std::map< InetAddress,SharedPtr<Socket> > _tcpSockets;
Mutex _tcpSockets_m;
Mutex _pollLock;
};
} // namespace ZeroTier
#endif
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