ccRTP
ext.h
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1 // Copyright (C) 1999-2003 Open Source Telecom Corporation.
2 //
3 // This program is free software; you can redistribute it and/or modify
4 // it under the terms of the GNU General Public License as published by
5 // the Free Software Foundation; either version 2 of the License, or
6 // (at your option) any later version.
7 //
8 // This program is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 // GNU General Public License for more details.
12 //
13 // You should have received a copy of the GNU General Public License
14 // along with this program; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
16 //
17 // As a special exception, you may use this file as part of a free software
18 // library without restriction. Specifically, if other files instantiate
19 // templates or use macros or inline functions from this file, or you compile
20 // this file and link it with other files to produce an executable, this
21 // file does not by itself cause the resulting executable to be covered by
22 // the GNU General Public License. This exception does not however
23 // invalidate any other reasons why the executable file might be covered by
24 // the GNU General Public License.
25 //
26 // This exception applies only to the code released under the name GNU
27 // ccRTP. If you copy code from other releases into a copy of GNU
28 // ccRTP, as the General Public License permits, the exception does
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34 // whether to permit this exception to apply to your modifications.
35 // If you do not wish that, delete this exception notice.
36 //
37 
43 #ifndef CCXX_RTP_EXT_H
44 #define CCXX_RTP_EXT_H
45 
46 #ifndef CCXX_SOCKET_H_
47 #include <cc++/socket.h>
48 #endif
49 
50 #include <ccrtp/ioqueue.h>
51 #include <ccrtp/channel.h>
52 
53 #ifdef CCXX_NAMESPACES
54 namespace ost {
55 #endif
56 
72 class __EXPORT RTPDuplex : public RTPDataQueue,
73  protected UDPReceive, public UDPTransmit
74 {
75 public:
81  RTPDuplex(const InetAddress &bind, tpport_t local, tpport_t remote);
82 
86  virtual
87  ~RTPDuplex();
88 
95  UDPTransmit::Error
96  connect(const InetHostAddress &host, tpport_t port = 0);
97 
98 protected:
99 
104  bool
105  isPendingData(microtimeout_t timeout)
106  { return isPendingReceive(timeout); }
107 
113  size_t
114  sendData(const unsigned char *const buffer, size_t len)
115  { return UDPTransmit::transmit((const char *)buffer, len); }
116 
124  size_t
125  recvData(unsigned char *buffer, size_t len,
126  InetHostAddress& na, tpport_t& tp)
127  { /* na = UDPReceive::getPeer(&tp); FIX name ambiguity */
128  return UDPReceive::receive(buffer, len); }
129 
134  inline void
135  setDataPeer(const InetAddress&, tpport_t)
136  { }
137 
142  inline void
143  setControlPeer(const InetAddress&, tpport_t)
144  { }
145 
146  inline size_t
147  getNextDataPacketSize() const
148  {
149  // the const cast is a trick only needed for cc++2 <= 1.0.10
150  size_t len; ccioctl(const_cast<RTPDuplex*>(this)->UDPReceive::getReceiver(),FIONREAD,len); return len;
151  }
152 
156  SyncSource &getPeer();
157 
158 private:
159  tpport_t dataBasePort;
160 };
161  // rtpext
163 
164 #ifdef CCXX_NAMESPACES
165 }
166 #endif
167 
168 #endif //CCXX_RTP_EXT_H
169