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
235
236
237
238
239
240
241
242
|
/*
* Copyright (C) 2007-2010 Xagasoft, All rights reserved.
*
* This file is part of the libbu++ library and is released under the
* terms of the license contained in the file LICENSE.
*/
#include "bu/itoserver.h"
#include <errno.h>
#include "bu/tcpserversocket.h"
#include "bu/client.h"
#include "bu/tcpsocket.h"
#include "bu/config.h"
Bu::ItoServer::ItoServer() :
nTimeoutSec( 1 ),
nTimeoutUSec( 0 )
{
FD_ZERO( &fdActive );
}
Bu::ItoServer::~ItoServer()
{
while( !qClientCleanup.isEmpty() )
{
ItoClient *pCli = qClientCleanup.dequeue();
pCli->join();
delete pCli;
}
// TODO: Make sure here that each client has shutdown it's socket, and
// maybe even written any extra data, we could put a timelimit on this...
// anyway, it's not as clean as it could be right now.
for( ClientHash::iterator i = hClients.begin(); i != hClients.end(); i++ )
{
ItoClient *pCli = (*i);
pCli->join();
delete pCli;
}
}
void Bu::ItoServer::addPort( int nPort, int nPoolSize )
{
TcpServerSocket *s = new TcpServerSocket( nPort, nPoolSize );
int nSocket = s->getSocket();
FD_SET( nSocket, &fdActive );
hServers.insert( nSocket, s );
}
void Bu::ItoServer::addPort( const String &sAddr, int nPort, int nPoolSize )
{
TcpServerSocket *s = new TcpServerSocket( sAddr, nPort, nPoolSize );
int nSocket = s->getSocket();
FD_SET( nSocket, &fdActive );
hServers.insert( nSocket, s );
}
void Bu::ItoServer::setTimeout( int nTimeoutSec, int nTimeoutUSec )
{
this->nTimeoutSec = nTimeoutSec;
this->nTimeoutUSec = nTimeoutUSec;
}
void Bu::ItoServer::addClient( int nSocket, int nPort )
{
ItoClient *pC = new ItoClient( *this, nSocket, nPort, nTimeoutSec,
nTimeoutUSec );
imClients.lock();
hClients.insert( nSocket, pC );
imClients.unlock();
pC->start();
}
void Bu::ItoServer::run()
{
for(;;)
{
struct timeval xTimeout = { nTimeoutSec, nTimeoutUSec };
fd_set fdRead = fdActive;
fd_set fdWrite = fdActive;
fd_set fdException = fdActive;
if( TEMP_FAILURE_RETRY( select( FD_SETSIZE, &fdRead, NULL, &fdException, &xTimeout ) ) < 0 )
{
throw ExceptionBase("Error attempting to scan open connections.");
}
for( ServerHash::iterator i = hServers.begin(); i != hServers.end(); i++ )
{
if( FD_ISSET( i.getKey(), &fdRead ) )
{
TcpServerSocket *pSrv = i.getValue();
addClient( pSrv->accept(), pSrv->getPort() );
}
}
while( !qClientCleanup.isEmpty() )
{
ItoClient *pCli = qClientCleanup.dequeue();
pCli->join();
delete pCli;
}
}
}
void Bu::ItoServer::clientCleanup( int iSocket )
{
imClients.lock();
ItoClient *pCli = hClients.get( iSocket );
imClients.unlock();
qClientCleanup.enqueue( pCli );
}
Bu::ItoServer::ItoClient::ItoClient( ItoServer &rSrv, int iSocket, int iPort,
int nTimeoutSec, int nTimeoutUSec ) :
rSrv( rSrv ),
iSocket( iSocket ),
iPort( iPort ),
nTimeoutSec( nTimeoutSec ),
nTimeoutUSec( nTimeoutUSec )
{
FD_ZERO( &fdActive );
FD_SET( iSocket, &fdActive );
pClient = new Client(
new Bu::TcpSocket( iSocket ),
new SrvClientLinkFactory( rSrv )
);
}
Bu::ItoServer::ItoClient::~ItoClient()
{
}
void Bu::ItoServer::ItoClient::run()
{
imProto.lock();
rSrv.onNewConnection( pClient, iPort );
pClient->processOutput();
imProto.unlock();
for(;;)
{
struct timeval xTimeout = { nTimeoutSec, nTimeoutUSec };
fd_set fdRead = fdActive;
fd_set fdWrite;
fd_set fdException = fdActive;
FD_ZERO( &fdWrite );
if( pClient->hasOutput() )
FD_SET( iSocket, &fdWrite );
if( TEMP_FAILURE_RETRY( select( FD_SETSIZE,
&fdRead, &fdWrite, &fdException, &xTimeout ) ) < 0 )
{
throw ExceptionBase("Error attempting to scan open connections.");
}
while( !qMsg.isEmpty() )
{
imProto.lock();
Bu::String *pMsg = qMsg.dequeue();
pClient->onMessage( *pMsg );
delete pMsg;
pClient->processOutput();
imProto.unlock();
}
if( FD_ISSET( iSocket, &fdRead ) )
{
imProto.lock();
pClient->processInput();
imProto.unlock();
if( !pClient->isOpen() )
{
imProto.lock();
rSrv.onClosedConnection( pClient );
imProto.unlock();
rSrv.clientCleanup( iSocket );
return;
}
}
if( FD_ISSET( iSocket, &fdWrite ) )
{
imProto.lock();
pClient->processOutput();
imProto.unlock();
}
}
}
Bu::ItoServer::SrvClientLink::SrvClientLink( ItoClient *pClient ) :
pClient( pClient )
{
}
Bu::ItoServer::SrvClientLink::~SrvClientLink()
{
}
void Bu::ItoServer::SrvClientLink::sendMessage( const Bu::String &sMsg )
{
if( !pClient->imProto.trylock() )
{
pClient->pClient->onMessage( sMsg );
pClient->pClient->processOutput();
pClient->imProto.unlock();
}
else
{
Bu::String *pMsg = new Bu::String( sMsg );
pClient->qMsg.enqueue( pMsg );
}
}
Bu::ItoServer::SrvClientLinkFactory::SrvClientLinkFactory(
Bu::ItoServer &rSrv ) :
rSrv( rSrv )
{
}
Bu::ItoServer::SrvClientLinkFactory::~SrvClientLinkFactory()
{
}
Bu::ClientLink *Bu::ItoServer::SrvClientLinkFactory::createLink(
Bu::Client *pClient )
{
rSrv.imClients.lock();
ItoClient *pCli = rSrv.hClients.get( *pClient->getSocket() );
rSrv.imClients.unlock();
return new SrvClientLink( pCli );
}
|
