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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
#include <Ice/Config.h>
#if !defined(__APPLE__) || TARGET_OS_IPHONE == 0
#include <Ice/TcpAcceptor.h>
#include <Ice/TcpTransceiver.h>
#include <Ice/TcpEndpointI.h>
#include <Ice/ProtocolInstance.h>
#include <Ice/LoggerUtil.h>
#include <Ice/LocalException.h>
#include <Ice/Properties.h>
#include <Ice/StreamSocket.h>
#include <IceUtil/StringUtil.h>
#if defined(ICE_USE_IOCP)
# include <Mswsock.h>
#endif
//
// Use the system default for the listen() backlog or 511 if not defined.
//
#ifndef SOMAXCONN
# define SOMAXCONN 511
#endif
using namespace std;
using namespace Ice;
using namespace IceInternal;
IceUtil::Shared* IceInternal::upCast(TcpAcceptor* p) { return p; }
NativeInfoPtr
IceInternal::TcpAcceptor::getNativeInfo()
{
return this;
}
void
IceInternal::TcpAcceptor::close()
{
#if defined(ICE_USE_IOCP)
if(_acceptFd != INVALID_SOCKET)
{
closeSocketNoThrow(_acceptFd);
_acceptFd = INVALID_SOCKET;
}
#endif
if(_fd != INVALID_SOCKET)
{
closeSocketNoThrow(_fd);
_fd = INVALID_SOCKET;
}
}
EndpointIPtr
IceInternal::TcpAcceptor::listen()
{
try
{
const_cast<Address&>(_addr) = doBind(_fd, _addr);
doListen(_fd, _backlog);
}
catch(...)
{
_fd = INVALID_SOCKET;
throw;
}
_endpoint = _endpoint->endpoint(this);
return _endpoint;
}
#if defined(ICE_USE_IOCP)
AsyncInfo*
IceInternal::TcpAcceptor::getAsyncInfo(SocketOperation)
{
return &_info;
}
void
IceInternal::TcpAcceptor::startAccept()
{
LPFN_ACCEPTEX AcceptEx = ICE_NULLPTR; // a pointer to the 'AcceptEx()' function
GUID GuidAcceptEx = WSAID_ACCEPTEX; // The Guid
DWORD dwBytes;
if(WSAIoctl(_fd,
SIO_GET_EXTENSION_FUNCTION_POINTER,
&GuidAcceptEx,
sizeof(GuidAcceptEx),
&AcceptEx,
sizeof(AcceptEx),
&dwBytes,
ICE_NULLPTR,
ICE_NULLPTR) == SOCKET_ERROR)
{
throw SocketException(__FILE__, __LINE__, getSocketErrno());
}
assert(_acceptFd == INVALID_SOCKET);
_acceptFd = createSocket(false, _addr);
const int sz = static_cast<int>(_acceptBuf.size() / 2);
_info.error = ERROR_SUCCESS;
if(!AcceptEx(_fd, _acceptFd, &_acceptBuf[0], 0, sz, sz, &_info.count, &_info))
{
if(!wouldBlock())
{
throw SocketException(__FILE__, __LINE__, getSocketErrno());
}
}
}
void
IceInternal::TcpAcceptor::finishAccept()
{
if(_info.error != ERROR_SUCCESS || _fd == INVALID_SOCKET)
{
closeSocketNoThrow(_acceptFd);
_acceptFd = INVALID_SOCKET;
_acceptError = _info.error;
}
}
TransceiverPtr
IceInternal::TcpAcceptor::accept()
{
if(_acceptFd == INVALID_SOCKET)
{
throw SocketException(__FILE__, __LINE__, _acceptError);
}
if(setsockopt(_acceptFd, SOL_SOCKET, SO_UPDATE_ACCEPT_CONTEXT, (char*)&_acceptFd, sizeof(_acceptFd)) ==
SOCKET_ERROR)
{
closeSocketNoThrow(_acceptFd);
_acceptFd = INVALID_SOCKET;
throw SocketException(__FILE__, __LINE__, getSocketErrno());
}
SOCKET fd = _acceptFd;
_acceptFd = INVALID_SOCKET;
return new TcpTransceiver(_instance, new StreamSocket(_instance, fd));
}
#else
TransceiverPtr
IceInternal::TcpAcceptor::accept()
{
return new TcpTransceiver(_instance, new StreamSocket(_instance, doAccept(_fd)));
}
#endif
string
IceInternal::TcpAcceptor::protocol() const
{
return _instance->protocol();
}
string
IceInternal::TcpAcceptor::toString() const
{
return addrToString(_addr);
}
string
IceInternal::TcpAcceptor::toDetailedString() const
{
ostringstream os;
os << "local address = " << toString();
vector<string> intfs = getHostsForEndpointExpand(inetAddrToString(_addr), _instance->protocolSupport(), true);
if(!intfs.empty())
{
os << "\nlocal interfaces = ";
os << IceUtilInternal::joinString(intfs, ", ");
}
return os.str();
}
int
IceInternal::TcpAcceptor::effectivePort() const
{
return getPort(_addr);
}
IceInternal::TcpAcceptor::TcpAcceptor(const TcpEndpointIPtr& endpoint,
const ProtocolInstancePtr& instance,
const string& host,
int port) :
_endpoint(endpoint),
_instance(instance),
_addr(getAddressForServer(host, port, _instance->protocolSupport(), instance->preferIPv6(), true))
#ifdef ICE_USE_IOCP
, _acceptFd(INVALID_SOCKET), _info(SocketOperationRead)
#endif
{
_backlog = instance->properties()->getPropertyAsIntWithDefault("Ice.TCP.Backlog", SOMAXCONN);
_fd = createServerSocket(false, _addr, instance->protocolSupport());
#ifdef ICE_USE_IOCP
_acceptBuf.resize((sizeof(sockaddr_storage) + 16) * 2);
#endif
setBlock(_fd, false);
setTcpBufSize(_fd, _instance);
#ifndef _WIN32
//
// 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).
//
setReuseAddress(_fd, true);
#endif
}
IceInternal::TcpAcceptor::~TcpAcceptor()
{
assert(_fd == INVALID_SOCKET);
#ifdef ICE_USE_IOCP
assert(_acceptFd == INVALID_SOCKET);
#endif
}
#endif
|
