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
|
// **********************************************************************
//
// Copyright (c) 2003-2010 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.
//
// **********************************************************************
package IceInternal;
class TcpAcceptor implements Acceptor
{
public java.nio.channels.ServerSocketChannel
fd()
{
return _fd;
}
public void
close()
{
if(_traceLevels.network >= 1)
{
String s = "stopping to accept tcp connections at " + toString();
_logger.trace(_traceLevels.networkCat, s);
}
assert(_fd != null);
Network.closeSocketNoThrow(_fd);
_fd = null;
}
public void
listen()
{
// Nothing to do.
if(_traceLevels.network >= 1)
{
StringBuffer s = new StringBuffer("accepting tcp connections at ");
s.append(toString());
java.util.List<String> interfaces =
Network.getHostsForEndpointExpand(_addr.getAddress().getHostAddress(), _instance.protocolSupport(),
true);
if(!interfaces.isEmpty())
{
s.append("\nlocal interfaces: ");
s.append(IceUtilInternal.StringUtil.joinString(interfaces, ", "));
}
_logger.trace(_traceLevels.networkCat, s.toString());
}
}
public Transceiver
accept()
{
java.nio.channels.SocketChannel fd = Network.doAccept(_fd);
Network.setBlock(fd, false);
Network.setTcpBufSize(fd, _instance.initializationData().properties, _logger);
if(_traceLevels.network >= 1)
{
String s = "accepted tcp connection\n" + Network.fdToString(fd);
_logger.trace(_traceLevels.networkCat, s);
}
return new TcpTransceiver(_instance, fd, true);
}
public String
toString()
{
return Network.addrToString(_addr);
}
int
effectivePort()
{
return _addr.getPort();
}
TcpAcceptor(Instance instance, String host, int port)
{
_instance = instance;
_traceLevels = instance.traceLevels();
_logger = instance.initializationData().logger;
_backlog = instance.initializationData().properties.getPropertyAsIntWithDefault("Ice.TCP.Backlog", 511);
try
{
_fd = Network.createTcpServerSocket();
Network.setBlock(_fd, false);
Network.setTcpBufSize(_fd, _instance.initializationData().properties, _logger);
if(!System.getProperty("os.name").startsWith("Windows"))
{
//
// Enable SO_REUSEADDR on Unix platforms to allow
// re-using the socket even if it's in the TIME_WAIT
// state. On Windows, this doesn't appear to be
// necessary and enabling SO_REUSEADDR would actually
// not be a good thing since it allows a second
// process to bind to an address even it's already
// bound by another process.
//
// TODO: using SO_EXCLUSIVEADDRUSE on Windows would
// probably be better but it's only supported by recent
// Windows versions (XP SP2, Windows Server 2003).
//
Network.setReuseAddress(_fd, true);
}
_addr = Network.getAddressForServer(host, port, _instance.protocolSupport());
if(_traceLevels.network >= 2)
{
String s = "attempting to bind to tcp socket " + toString();
_logger.trace(_traceLevels.networkCat, s);
}
_addr = Network.doBind(_fd, _addr, _backlog);
}
catch(RuntimeException ex)
{
_fd = null;
throw ex;
}
}
protected synchronized void
finalize()
throws Throwable
{
IceUtilInternal.Assert.FinalizerAssert(_fd == null);
super.finalize();
}
private Instance _instance;
private TraceLevels _traceLevels;
private Ice.Logger _logger;
private java.nio.channels.ServerSocketChannel _fd;
private int _backlog;
private java.net.InetSocketAddress _addr;
}
|
