About halfway there in refactoring to support pluggable SocketManager.

This commit is contained in:
Adam Ierymenko 2014-10-21 14:26:10 -07:00
parent 6bc9a938cf
commit 128a131070
9 changed files with 466 additions and 630 deletions

View file

@ -25,8 +25,8 @@
* LLC. Start here: http://www.zerotier.com/
*/
#ifndef ZT_SOCKETMANAGER_HPP
#define ZT_SOCKETMANAGER_HPP
#ifndef ZT_NATIVESOCKETMANAGER_HPP
#define ZT_NATIVESOCKETMANAGER_HPP
#include <stdio.h>
#include <stdlib.h>
@ -34,14 +34,11 @@
#include <map>
#include <stdexcept>
#include "Constants.hpp"
#include "SharedPtr.hpp"
#include "InetAddress.hpp"
#include "Socket.hpp"
#include "Mutex.hpp"
#include "NonCopyable.hpp"
#include "Buffer.hpp"
#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>
@ -56,16 +53,19 @@
namespace ZeroTier {
class NativeSocket;
class NativeUdpSocket;
class NativeTcpSocket;
/**
* Socket I/O multiplexer
*
* This wraps select(), epoll(), etc. and handles creation of Sockets.
*/
class SocketManager : NonCopyable
class NativeSocketManager : public SocketManager
{
friend class Socket;
friend class UdpSocket;
friend class TcpSocket;
friend class NativeUdpSocket;
friend class NativeTcpSocket;
public:
/**
@ -75,52 +75,18 @@ public:
* @param arg Second argument to packetHandler()
* @throws std::runtime_error Could not bind local port(s) or open socket(s)
*/
SocketManager(
NativeSocketManager(
int localUdpPort,
int localTcpPort,
void (*packetHandler)(const SharedPtr<Socket> &,void *,const InetAddress &,Buffer<ZT_SOCKET_MAX_MESSAGE_LEN> &),
void *arg);
~SocketManager();
virtual ~NativeSocketManager();
/**
* 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
*/
bool send(const InetAddress &to,bool tcp,bool autoConnectTcp,const void *msg,unsigned int msglen);
/**
* 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
*/
void poll(unsigned long timeout);
/**
* Cause current or next blocking poll() operation to timeout immediately
*/
void whack();
/**
* Close TCP sockets
*/
void closeTcpSockets();
virtual bool send(const InetAddress &to,bool tcp,bool autoConnectTcp,const void *msg,unsigned int msglen);
virtual void poll(unsigned long timeout);
virtual void whack();
virtual void closeTcpSockets();
private:
// Called by socket implementations when a packet is received
@ -133,24 +99,11 @@ private:
}
// Used by TcpSocket to register/unregister for write availability notification
inline void startNotifyWrite(const Socket *sock)
throw()
{
_fdSetLock.lock();
FD_SET(sock->_sock,&_writefds);
_fdSetLock.unlock();
}
inline void stopNotifyWrite(const Socket *sock)
throw()
{
_fdSetLock.lock();
FD_CLR(sock->_sock,&_writefds);
_fdSetLock.unlock();
}
void _startNotifyWrite(const NativeSocket *sock);
void _stopNotifyWrite(const NativeSocket *sock);
// Called in SocketManager destructor or in constructor cleanup before exception throwing
void _closeSockets()
throw();
void _closeSockets();
// Called in SocketManager to recompute _nfds for select() based implementation
void _updateNfds();
@ -179,9 +132,6 @@ private:
std::map< InetAddress,SharedPtr<Socket> > _tcpSockets;
Mutex _tcpSockets_m;
void (*_packetHandler)(const SharedPtr<Socket> &,void *,const InetAddress &,Buffer<ZT_SOCKET_MAX_MESSAGE_LEN> &);
void *_arg;
Mutex _pollLock;
};