1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __TCPPORT_H__
#define __TCPPORT_H__
#include <list>
#include "talk/base/asynctcpsocket.h"
#include "talk/p2p/base/port.h"
namespace cricket {
class TCPConnection;
extern const std::string LOCAL_PORT_TYPE; // type of TCP ports
// Communicates using a local TCP port.
//
// This class is designed to allow subclasses to take advantage of the
// connection management provided by this class. A subclass should take of all
// packet sending and preparation, but when a packet is received, it should
// call this TCPPort::OnReadPacket (3 arg) to dispatch to a connection.
class TCPPort : public Port {
public:
TCPPort(talk_base::Thread* thread, talk_base::SocketFactory* factory,
talk_base::Network* network, const talk_base::SocketAddress& address);
virtual ~TCPPort();
virtual Connection* CreateConnection(const Candidate& address, CandidateOrigin origin);
virtual void PrepareAddress();
virtual int SetOption(talk_base::Socket::Option opt, int value);
virtual int GetError();
protected:
// Handles sending using the local TCP socket.
virtual int SendTo(const void* data, size_t size,
const talk_base::SocketAddress& addr, bool payload);
// Creates TCPConnection for incoming sockets
void OnAcceptEvent(talk_base::AsyncSocket* socket);
talk_base::AsyncSocket* socket() { return socket_; }
private:
// Note: use this until Network ips are stable, then use network->ip
talk_base::SocketAddress address_;
bool incoming_only_;
talk_base::AsyncSocket* socket_;
int error_;
struct Incoming {
talk_base::SocketAddress addr;
talk_base::AsyncTCPSocket * socket;
};
std::list<Incoming> incoming_;
talk_base::AsyncTCPSocket * GetIncoming(const talk_base::SocketAddress& addr,
bool remove = false);
// Receives packet signal from the local TCP Socket.
void OnReadPacket(const char* data, size_t size,
const talk_base::SocketAddress& remote_addr,
talk_base::AsyncPacketSocket* socket);
friend class TCPConnection;
};
class TCPConnection : public Connection {
public:
// Connection is outgoing unless socket is specified
TCPConnection(TCPPort* port, const Candidate& candidate,
talk_base::AsyncTCPSocket* socket = 0);
virtual ~TCPConnection();
virtual int Send(const void* data, size_t size);
virtual int GetError();
talk_base::AsyncTCPSocket * socket() { return socket_; }
private:
TCPPort* tcpport();
talk_base::AsyncTCPSocket* socket_;
int error_;
void OnConnect(talk_base::AsyncTCPSocket* socket);
void OnClose(talk_base::AsyncTCPSocket* socket, int error);
void OnReadPacket(const char* data, size_t size,
const talk_base::SocketAddress& remote_addr,
talk_base::AsyncPacketSocket* socket);
friend class TCPPort;
};
} // namespace cricket
#endif // __TCPPORT_H__
|
