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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
// **********************************************************************
//
// Copyright (c) 2003-2017 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
namespace IceInternal
{
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Net;
using System.Net.Sockets;
using System.Text;
class TcpAcceptor : Acceptor
{
public virtual void close()
{
if(_acceptFd != null)
{
Network.closeSocketNoThrow(_acceptFd);
_acceptFd = null;
}
if(_fd != null)
{
Network.closeSocketNoThrow(_fd);
_fd = null;
}
}
public virtual EndpointI listen()
{
try
{
_addr = Network.doBind(_fd, _addr);
Network.doListen(_fd, _backlog);
}
catch(SystemException)
{
_fd = null;
throw;
}
_endpoint = _endpoint.endpoint(this);
return _endpoint;
}
public virtual bool startAccept(AsyncCallback callback, object state)
{
try
{
_result = _fd.BeginAccept(delegate(IAsyncResult result)
{
if(!result.CompletedSynchronously)
{
callback(result.AsyncState);
}
}, state);
}
catch(SocketException ex)
{
throw new Ice.SocketException(ex);
}
return _result.CompletedSynchronously;
}
public virtual void finishAccept()
{
if(_fd != null)
{
_acceptFd = null;
try
{
_acceptFd = _fd.EndAccept(_result);
}
catch(SocketException ex)
{
_acceptError = ex;
}
}
}
public virtual Transceiver accept()
{
if(_acceptFd == null)
{
throw _acceptError;
}
Socket acceptFd = _acceptFd;
_acceptFd = null;
_acceptError = null;
return new TcpTransceiver(_instance, new StreamSocket(_instance, acceptFd));
}
public string protocol()
{
return _instance.protocol();
}
public override string ToString()
{
return Network.addrToString(_addr);
}
public string toDetailedString()
{
StringBuilder s = new StringBuilder("local address = ");
s.Append(ToString());
List<string> intfs =
Network.getHostsForEndpointExpand(_addr.Address.ToString(), _instance.protocolSupport(), true);
if(intfs.Count != 0)
{
s.Append("\nlocal interfaces = ");
s.Append(String.Join(", ", intfs.ToArray()));
}
return s.ToString();
}
internal int effectivePort()
{
return _addr.Port;
}
internal TcpAcceptor(TcpEndpointI endpoint, ProtocolInstance instance, string host, int port)
{
_endpoint = endpoint;
_instance = instance;
_backlog = instance.properties().getPropertyAsIntWithDefault("Ice.TCP.Backlog", 511);
try
{
int protocol = _instance.protocolSupport();
_addr = (IPEndPoint)Network.getAddressForServer(host, port, protocol, _instance.preferIPv6());
_fd = Network.createServerSocket(false, _addr.AddressFamily, protocol);
Network.setBlock(_fd, false);
Network.setTcpBufSize(_fd, _instance);
}
catch(Exception)
{
_fd = null;
throw;
}
}
private TcpEndpointI _endpoint;
private ProtocolInstance _instance;
private Socket _fd;
private Socket _acceptFd;
private Exception _acceptError;
private int _backlog;
private IPEndPoint _addr;
private IAsyncResult _result;
}
}
|
