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
|
// $Id$
#include "orbsvcs/Event/ECG_UDP_Receiver.h"
#include "orbsvcs/Event_Utilities.h"
#include "ace/SString.h"
#if !defined(__ACE_INLINE__)
#include "orbsvcs/Event/ECG_UDP_Receiver.inl"
#endif /* __ACE_INLINE__ */
ACE_RCSID (Event,
ECG_UDP_Receiver,
"$Id$")
// ****************************************************************
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_ECG_UDP_Receiver::~TAO_ECG_UDP_Receiver (void)
{
this->consumer_proxy_ =
RtecEventChannelAdmin::ProxyPushConsumer::_nil ();
if (this->handler_rptr_.get ())
this->handler_rptr_->shutdown ();
}
void
TAO_ECG_UDP_Receiver::init (RtecEventChannelAdmin::EventChannel_ptr lcl_ec,
TAO_ECG_Refcounted_Endpoint ignore_from,
RtecUDPAdmin::AddrServer_ptr addr_server)
{
// Verify arguments.
// <addr_server> is allowed to be nil. But then, if get_addr () method
// is invoked, it throws an exception.
if (CORBA::is_nil (lcl_ec))
{
ACE_ERROR ((LM_ERROR,
"TAO_ECG_UDP_Receiver::init(): "
"<lcl_ec> argument is nil.\n"));
throw CORBA::INTERNAL ();
}
this->cdr_receiver_.init (ignore_from);
this->lcl_ec_ =
RtecEventChannelAdmin::EventChannel::_duplicate (lcl_ec);
this->addr_server_ =
RtecUDPAdmin::AddrServer::_duplicate (addr_server);
}
void
TAO_ECG_UDP_Receiver::connect (const RtecEventChannelAdmin::SupplierQOS& pub)
{
if (CORBA::is_nil (this->lcl_ec_.in ()))
{
//FUZZ: disable check_for_lack_ACE_OS
ACE_ERROR ((LM_ERROR,
"Error initializing TAO_ECG_UDP_Receiver: "
"init() hasn't been called before connect().\n"));
//FUZZ: enable check_for_lack_ACE_OS
throw CORBA::INTERNAL ();
}
if (pub.publications.length () == 0)
{
ACE_ERROR ((LM_ERROR,
"TAO_ECG_UDP_Receiver::connect(): "
"0-length publications argument.\n"));
throw CORBA::INTERNAL ();
}
if (CORBA::is_nil (this->consumer_proxy_.in ()))
{
this->new_connect (pub);
}
else
{
this->reconnect (pub);
}
}
void
TAO_ECG_UDP_Receiver::new_connect (const RtecEventChannelAdmin::SupplierQOS& pub)
{
// Activate with poa.
RtecEventComm::PushSupplier_var supplier_ref;
PortableServer::POA_var poa = this->_default_POA ();
TAO_EC_Object_Deactivator deactivator;
activate (supplier_ref,
poa.in (),
this,
deactivator);
// Connect as a supplier to the local EC.
RtecEventChannelAdmin::SupplierAdmin_var supplier_admin =
this->lcl_ec_->for_suppliers ();
RtecEventChannelAdmin::ProxyPushConsumer_var proxy =
supplier_admin->obtain_push_consumer ();
ECG_Receiver_Auto_Proxy_Disconnect new_proxy_disconnect (proxy.in ());
proxy->connect_push_supplier (supplier_ref.in (),
pub);
// Update resource managers.
this->consumer_proxy_ = proxy._retn ();
this->auto_proxy_disconnect_.set_command (new_proxy_disconnect);
this->set_deactivator (deactivator);
}
void
TAO_ECG_UDP_Receiver::reconnect (const RtecEventChannelAdmin::SupplierQOS& pub)
{
// Obtain our object reference from the POA.
RtecEventComm::PushSupplier_var supplier_ref;
PortableServer::POA_var poa = this->_default_POA ();
CORBA::Object_var obj = poa->servant_to_reference (this);
supplier_ref =
RtecEventComm::PushSupplier::_narrow (obj.in ());
if (CORBA::is_nil (supplier_ref.in ()))
{
throw CORBA::INTERNAL ();
}
// Reconnect.
this->consumer_proxy_->connect_push_supplier (supplier_ref.in (),
pub);
}
void
TAO_ECG_UDP_Receiver::disconnect_push_supplier (void)
{
// Prevent attempts to disconnect.
this->auto_proxy_disconnect_.disallow_command ();
this->shutdown ();
}
void
TAO_ECG_UDP_Receiver::shutdown (void)
{
if (this->handler_rptr_.get ())
this->handler_rptr_->shutdown ();
TAO_ECG_Refcounted_Handler empty_handler_rptr;
this->handler_rptr_ = empty_handler_rptr;
this->consumer_proxy_ =
RtecEventChannelAdmin::ProxyPushConsumer::_nil ();
this->auto_proxy_disconnect_.execute ();
this->deactivator_.deactivate ();
this->cdr_receiver_.shutdown ();
}
// Helper class for using <cdr_receiver_>.
class TAO_ECG_Event_CDR_Decoder: public TAO_ECG_CDR_Processor
{
public:
virtual int decode (TAO_InputCDR &cdr);
RtecEventComm::EventSet events;
};
int
TAO_ECG_Event_CDR_Decoder::decode (TAO_InputCDR &cdr)
{
if (!(cdr >> this->events))
{
ACE_ERROR_RETURN ((LM_ERROR,
"Error decoding events cdr.\n"),
-1);
}
return 0;
}
int
TAO_ECG_UDP_Receiver::handle_input (ACE_SOCK_Dgram& dgram)
{
try
{
// Make sure we are connected to the Event Channel before proceeding
// any further.
if (CORBA::is_nil (this->consumer_proxy_.in ()))
{
ACE_ERROR ((LM_ERROR,
"TAO_ECG_UDP_Receiver::handle_input() "
"called but the Receiver is not connected "
"to an event channel. Shutting down the Receiver.\n"));
this->shutdown ();
return 0;
}
// Receive data.
TAO_ECG_Event_CDR_Decoder cdr_decoder;
int const result = this->cdr_receiver_.handle_input (dgram, &cdr_decoder);
if (result == 0)
// No data to act on.
{
return 0;
}
if (result == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"Error receiving multicasted events.\n"),
0);
}
this->consumer_proxy_->push (cdr_decoder.events);
}
catch (const CORBA::Exception& ex)
{
ACE_ERROR ((LM_ERROR,
"Caught and swallowed EXCEPTION in "
"ECG_UDP_Receiver::handle_input: %C\n",
ex._info ().c_str ()));
}
return 0;
}
TAO_END_VERSIONED_NAMESPACE_DECL
|
