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
|
/*
Copyright (C) 1999 Stefan Westerfeld
stefan@space.twc.de
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
Permission is also granted to link this program with the Qt
library, treating Qt like a library that normally accompanies the
operating system kernel, whether or not that is in fact the case.
*/
#include "hello.h"
#include "dynamicrequest.h"
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
using namespace std;
using namespace Arts;
/*
* Hellodynamic illustrates the usage of the DynamicRequest class to perform
* dynamic requests. There are two things you can try
*
* hellodynamic
*
* which will use a local implementation of a hello object, and
*
* hellodynamic <mcop reference>
*
* which will use a remote implementation of a hello object.
*/
int main(int argc, char **argv)
{
Dispatcher dispatcher;
Hello h;
// Check if we should connect to a remote server:
if(argc == 2)
{
h = Reference(argv[1]);
if(h.isNull())
{
fprintf(stderr,"can't connect to the object\n");
exit(1);
}
}
// find out logname
const char *who = getenv("LOGNAME");
if(!who) who = "stefan";
printf("calling h.hello(\"%s\")\n", who);
// the dynamic equivalent to h.hello(who)
DynamicRequest hellorequest(h);
if(!hellorequest.method("hello").param(who).invoke())
cout << "dynamic invocation to h.hello(...) failed" << endl;
/*
Note: you could reuse hellorequest here, and indeed, if you
call the _same_ method over and over again, you'll get quite
some speed gain as the signature is only looked up once.
*/
// set a value (no error checking here, I am lazy ;)
DynamicRequest(h).method("_set_myValue").param(42).invoke();
// get a value via "normal" interface
printf("h.myValue() is %ld (after setting it to 42)\n", h.myValue());
// call h.concat("MCOP ","rules.") dynamically
string s;
DynamicRequest(h).method("concat").param("MCOP ").param("rules.").invoke(s);
cout << "Conclusion of this test: " << s << endl;
return 0;
}
|
