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Imported MaNGOS revision 6767 from http://mangos.svn.sourceforge.net/svnroot/mangos/trunk/
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dep/include/sockets/UdpSocket.h
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dep/include/sockets/UdpSocket.h
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/** \file UdpSocket.h
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** \date 2004-02-13
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** \author grymse@alhem.net
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**/
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/*
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Copyright (C) 2004-2007 Anders Hedstrom
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This library is made available under the terms of the GNU GPL.
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If you would like to use this library in a closed-source application,
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a separate license agreement is available. For information about
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the closed-source license agreement for the C++ sockets library,
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please visit http://www.alhem.net/Sockets/license.html and/or
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email license@alhem.net.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _SOCKETS_UdpSocket_H
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#define _SOCKETS_UdpSocket_H
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#include "sockets-config.h"
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#include "Socket.h"
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#ifdef SOCKETS_NAMESPACE
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namespace SOCKETS_NAMESPACE {
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#endif
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/** Socket implementation for UDP.
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\ingroup basic */
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class UdpSocket : public Socket
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{
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public:
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/** Constructor.
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\param h ISocketHandler reference
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\param ibufsz Maximum size of receive message (extra bytes will be truncated)
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\param ipv6 'true' if this is an ipv6 socket */
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UdpSocket(ISocketHandler& h,int ibufsz = 16384,bool ipv6 = false, int retries = 0);
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~UdpSocket();
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/** Called when incoming data has been received.
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\param buf Pointer to data
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\param len Length of data
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\param sa Pointer to sockaddr struct of sender
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\param sa_len Length of sockaddr struct */
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virtual void OnRawData(const char *buf,size_t len,struct sockaddr *sa,socklen_t sa_len);
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/** Called when incoming data has been received and read timestamp is enabled.
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\param buf Pointer to data
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\param len Length of data
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\param sa Pointer to sockaddr struct of sender
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\param sa_len Length of sockaddr struct
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\param ts Timestamp from message */
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virtual void OnRawData(const char *buf,size_t len,struct sockaddr *sa,socklen_t sa_len,struct timeval *ts);
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/** To receive incoming data, call Bind to setup an incoming port.
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\param port Incoming port number
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\param range Port range to try if ports already in use
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\return 0 if bind succeeded */
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int Bind(port_t& port,int range = 1);
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/** To receive data on a specific interface:port, use this.
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\param intf Interface ip/hostname
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\param port Port number
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\param range Port range
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\return 0 if bind succeeded */
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int Bind(const std::string& intf,port_t& port,int range = 1);
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/** To receive data on a specific interface:port, use this.
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\param a Ip address
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\param port Port number
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\param range Port range
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\return 0 if bind succeeded */
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int Bind(ipaddr_t a,port_t& port,int range = 1);
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#ifdef ENABLE_IPV6
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#ifdef IPPROTO_IPV6
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/** To receive data on a specific interface:port, use this.
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\param a Ipv6 address
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\param port Port number
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\param range Port range
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\return 0 if bind succeeded */
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int Bind(in6_addr a,port_t& port,int range = 1);
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#endif
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#endif
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/** To receive data on a specific interface:port, use this.
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\param ad Socket address
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\param range Port range
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\return 0 if bind succeeded */
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int Bind(SocketAddress& ad,int range = 1);
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/** Define remote host.
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\param l Address of remote host
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\param port Port of remote host
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\return true if successful */
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bool Open(ipaddr_t l,port_t port);
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/** Define remote host.
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\param host Hostname
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\param port Port number
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\return true if successful */
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bool Open(const std::string& host,port_t port);
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#ifdef ENABLE_IPV6
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#ifdef IPPROTO_IPV6
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/** Define remote host.
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\param a Address of remote host, ipv6
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\param port Port of remote host
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\return true if successful */
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bool Open(struct in6_addr& a,port_t port);
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#endif
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#endif
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/** Define remote host.
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\param ad Socket address
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\return true if successful */
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bool Open(SocketAddress& ad);
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/** Send to specified host */
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void SendToBuf(const std::string& ,port_t,const char *data,int len,int flags = 0);
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/** Send to specified address */
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void SendToBuf(ipaddr_t,port_t,const char *data,int len,int flags = 0);
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#ifdef ENABLE_IPV6
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#ifdef IPPROTO_IPV6
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/** Send to specified ipv6 address */
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void SendToBuf(in6_addr,port_t,const char *data,int len,int flags = 0);
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#endif
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#endif
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/** Send to specified socket address */
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void SendToBuf(SocketAddress& ad,const char *data,int len,int flags = 0);
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/** Send string to specified host */
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void SendTo(const std::string&,port_t,const std::string&,int flags = 0);
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/** Send string to specified address */
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void SendTo(ipaddr_t,port_t,const std::string&,int flags = 0);
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#ifdef ENABLE_IPV6
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#ifdef IPPROTO_IPV6
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/** Send string to specified ipv6 address */
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void SendTo(in6_addr,port_t,const std::string&,int flags = 0);
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#endif
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#endif
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/** Send string to specified socket address */
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void SendTo(SocketAddress& ad,const std::string&,int flags = 0);
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/** Send to connected address */
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void SendBuf(const char *data,size_t,int flags = 0);
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/** Send string to connected address. */
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void Send(const std::string& ,int flags = 0);
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/** Set broadcast */
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void SetBroadcast(bool b = true);
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/** Check broadcast flag.
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\return true broadcast is enabled. */
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bool IsBroadcast();
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/** multicast */
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void SetMulticastTTL(int ttl = 1);
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int GetMulticastTTL();
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void SetMulticastLoop(bool = true);
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bool IsMulticastLoop();
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void AddMulticastMembership(const std::string& group,const std::string& intf = "0.0.0.0",int if_index = 0);
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void DropMulticastMembership(const std::string& group,const std::string& intf = "0.0.0.0",int if_index = 0);
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#ifdef ENABLE_IPV6
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#ifdef IPPROTO_IPV6
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/** multicast, ipv6 only */
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void SetMulticastHops(int = -1);
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/** multicast, ipv6 only */
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int GetMulticastHops();
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#endif
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#endif
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/** Returns true if Bind succeeded. */
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bool IsBound();
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/** Return Bind port number */
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port_t GetPort();
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void OnOptions(int,int,int,SOCKET) {}
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int GetLastSizeWritten();
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/** Also read timestamp information from incoming message */
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void SetTimestamp(bool = true);
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protected:
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UdpSocket(const UdpSocket& s) : Socket(s) {}
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void OnRead();
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#if defined(LINUX) || defined(MACOSX)
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/** This method emulates socket recvfrom, but uses messages so we can get the timestamp */
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int ReadTS(char *ioBuf, int inBufSize, struct sockaddr *from, socklen_t fromlen, struct timeval *ts);
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#endif
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private:
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UdpSocket& operator=(const UdpSocket& ) { return *this; }
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/** create before using sendto methods */
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void CreateConnection();
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char *m_ibuf; ///< Input buffer
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int m_ibufsz; ///< Size of input buffer
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bool m_bind_ok; ///< Bind completed successfully
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port_t m_port; ///< Bind port number
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int m_last_size_written;
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int m_retries;
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bool m_b_read_ts;
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};
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#ifdef SOCKETS_NAMESPACE
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}
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#endif
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#endif // _SOCKETS_UdpSocket_H
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