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
|
// **********************************************************************
//
// Copyright (c) 2003-2007 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.
//
// **********************************************************************
#include <Ice/Application.h>
#include <IceStorm/IceStorm.h>
#include <IceUtil/Options.h>
#include <Clock.h>
using namespace std;
using namespace Demo;
class Publisher : public Ice::Application
{
public:
virtual int run(int, char*[]);
};
int
main(int argc, char* argv[])
{
Publisher app;
return app.main(argc, argv, "config.pub");
}
void
usage(const string& n)
{
cerr << "Usage: " << n << " [--datagram|--twoway|--oneway] [topic]\n" << endl;
}
int
Publisher::run(int argc, char* argv[])
{
IceUtil::Options opts;
opts.addOpt("", "datagram");
opts.addOpt("", "twoway");
opts.addOpt("", "oneway");
IceUtil::Options::StringVector remaining;
try
{
remaining = opts.parse(argc, argv);
}
catch(const IceUtil::BadOptException& e)
{
cerr << argv[0] << ": " << e.reason << endl;
return EXIT_FAILURE;
}
IceStorm::TopicManagerPrx manager = IceStorm::TopicManagerPrx::checkedCast(
communicator()->propertyToProxy("IceStorm.TopicManager.Proxy"));
if(!manager)
{
cerr << appName() << ": invalid proxy" << endl;
return EXIT_FAILURE;
}
string topicName = "time";
if(!remaining.empty())
{
topicName = remaining.front();
}
//
// Retrieve the topic.
//
IceStorm::TopicPrx topic;
try
{
topic = manager->retrieve(topicName);
}
catch(const IceStorm::NoSuchTopic&)
{
try
{
topic = manager->create(topicName);
}
catch(const IceStorm::TopicExists&)
{
cerr << appName() << ": temporary failure. try again." << endl;
return EXIT_FAILURE;
}
}
//
// Get the topic's publisher object, the Clock type, and create a
// oneway Clock proxy (for efficiency reasons).
//
Ice::ObjectPrx publisher = topic->getPublisher();
if(opts.isSet("datagram"))
{
publisher = publisher->ice_datagram();
}
else if(opts.isSet("twoway"))
{
// Do nothing.
}
else
{
publisher = publisher->ice_oneway();
}
ClockPrx clock = ClockPrx::uncheckedCast(publisher);
cout << "publishing tick events. Press ^C to terminate the application." << endl;
try
{
while(true)
{
clock->tick(IceUtil::Time::now().toDateTime());
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
}
}
catch(const Ice::CommunicatorDestroyedException&)
{
// Ignore
}
return EXIT_SUCCESS;
}
|
