blob: dbf0f1698aca32c30ab7c357d93d38de8c86d61a (
plain)
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
|
// $Id$
// ===========================================================
//
// = LIBRARY
// TAO/tests/Simple/chat
//
// = FILENAME
// Broadcaster_i.cpp
//
// = DESCRIPTION
// Implementation of the Broadcaster_i class. This class is the servant
// object for the chat server.
//
// = AUTHOR
// Pradeep Gore <pradeep@cs.wustl.edu>
//
// ===========================================================
#include "Broadcaster_i.h"
int
Broadcaster_i::Receiver_Data::operator == (const Broadcaster_i::Receiver_Data &receiver_data) const
{
// The <_is_equivalent> function checks if the _var and _ptr objects
// are the same. NOTE: this call might not behave well on other
// ORBs since <_is_equivalent> isn't guaranteed to differentiate
// object references.
return this->receiver_->_is_equivalent (receiver_data.receiver_.in ())
&& this->nickname_ == receiver_data.nickname_;
}
Broadcaster_i::Broadcaster_i (void)
{
// No-op
}
Broadcaster_i::~Broadcaster_i (void)
{
// No-op
}
void
Broadcaster_i::add (Receiver_ptr receiver,
const char *nickname,
CORBA::Environment &TAO_TRY_ENV)
{
Broadcaster_i::Receiver_Data receiver_data;
// Store the client information.
receiver_data.receiver_ = Receiver::_duplicate (receiver);
receiver_data.nickname_ = nickname;
// Insert the Receiver reference to the set
if (receiver_set_.insert (receiver_data) == -1)
TAO_TRY_ENV.exception (new Broadcaster::CannotAdd
("failed to add to the receiver set\n"));
// Tell everyone which person just joined the chat.
ACE_CString broadcast_string =
ACE_CString ("**** ")
+ ACE_CString (nickname)
+ ACE_CString (" has joined the chat ****\n");
TAO_TRY
{
this->broadcast (broadcast_string.fast_rep (),
TAO_TRY_ENV);
TAO_CHECK_ENV;
}
TAO_CATCHANY
{
TAO_TRY_ENV.print_exception ("Broadcaster_i::add\t\n");
}
TAO_ENDTRY;
}
void
Broadcaster_i::remove (Receiver_ptr receiver,
CORBA::Environment &TAO_TRY_ENV)
{
Broadcaster_i::Receiver_Data receiver_data_to_remove;
// Go through the list of <Receiver_Data> to find which registered client
// wants to be removed.
for (RECEIVER_SET_ITERATOR iter = this->receiver_set_.begin ();
iter != this->receiver_set_.end ();
iter++)
{
// The <_is_equivalent> function checks if the _var and _ptr objects
// are the same. NOTE: this call might not behave well on other
// ORBs since <_is_equivalent> isn't guaranteed to differentiate
// object references.
if ((*iter).receiver_.in ()->_is_equivalent (receiver) == 1)
{
receiver_data_to_remove = *iter;
break;
}
}
// Remove the reference from our list.
if (this->receiver_set_.remove (receiver_data_to_remove) == -1)
TAO_TRY_ENV.exception(new Broadcaster::CannotRemove
("failed to remove from receiver set\n"));
// Tell everyone, which person left the chat.
ACE_CString broadcast_string = "**** "
+ receiver_data_to_remove.nickname_
+ " left the chat"
+ " ****\n";
this->broadcast (broadcast_string.fast_rep (),
TAO_TRY_ENV);
}
void
Broadcaster_i::say (Receiver_ptr receiver,
const char *text,
CORBA::Environment &TAO_TRY_ENV)
{
TAO_TRY
{
ACE_CString sender_nickname ("Sender Unknown");
// Find the nickname for this receiver.
for (RECEIVER_SET_ITERATOR iter = this->receiver_set_.begin ();
iter != this->receiver_set_.end ();
iter++)
{
// The <_is_equivalent> function checks if the _var and
// _ptr objects are the same. NOTE: this call might not
// behave well on other ORBs since <_is_equivalent> isn't
// guaranteed to differentiate object references.
if ((*iter).receiver_.in ()->_is_equivalent (receiver) == 1)
sender_nickname = (*iter).nickname_;
}
// Broadcast the message to all registered clients
ACE_CString broadcast_string ("[" + sender_nickname + "] " + text);
this->broadcast (broadcast_string.fast_rep (),
TAO_TRY_ENV);
TAO_CHECK_ENV;
}
TAO_CATCHANY
{
TAO_TRY_ENV.print_exception ("Broadcaster_i::say\t\n");
}
TAO_ENDTRY;
}
void
Broadcaster_i::broadcast (const char *text,
CORBA::Environment &TAO_TRY_ENV)
{
// Broadcast the message to all registered clients.
for (RECEIVER_SET_ITERATOR iter = this->receiver_set_.begin ();
iter != this->receiver_set_.end ();
iter++)
{
TAO_TRY
{
(*iter).receiver_->message (text,
TAO_TRY_ENV);
TAO_CHECK_ENV;
}
TAO_CATCHANY
{
TAO_TRY_ENV.print_exception ("Failed to send a message\n");
}
TAO_ENDTRY;
}
}
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
template class ACE_Unbounded_Set<Broadcaster_i::Receiver_Data>;
template class ACE_Unbounded_Set_Iterator<Broadcaster_i::Receiver_Data>;
template class ACE_Node<Broadcaster_i::Receiver_Data>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#pragma instantiate ACE_Unbounded_Set<Broadcaster_i::Receiver_Data>
#pragma instantiate ACE_Unbounded_Set_Iterator<Broadcaster_i::Receiver_Data>
#pragma instantiate ACE_Node<Broadcaster_i::Receiver_Data>
#endif /* ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA */
|
