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
|
// $Id$
//==========================================================================
//
//
// = FILENAME
// client.cpp
//
// = DESCRIPTION
//
// This is a simple foo client implementation. Also looks out for
// forwarding exceptions
//
// = AUTHOR
// Irfan Pyarali
//
//==========================================================================
#include "tao/corba.h"
#include "ace/streams.h"
#include "ace/Get_Opt.h"
#include "ace/Read_Buffer.h"
#include "FooC.h"
ACE_RCSID(Forwarding, client, "$Id$")
static char *server_IOR_ = 0;
static int iterations = 6;
static int
read_ior (char *filename)
{
// Open the file for reading.
ACE_HANDLE f_handle_ = ACE_OS::open (filename,0);
if (f_handle_ == ACE_INVALID_HANDLE)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to open %s for reading: %p\n",
filename,
"ACE_OS::open"),
-1);
ACE_Read_Buffer ior_buffer (f_handle_);
server_IOR_ = ior_buffer.read ();
if (server_IOR_ == 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to allocate memory to read ior: %p\n",
"ACE_Read_Buffer::read"),
-1);
return 0;
}
static int
parse_args (int argc, char **argv)
{
ACE_Get_Opt get_opts (argc, argv, "f:i:k:O:");
int c;
int result;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'f': // read the IOR from the file.
result = read_ior (get_opts.optarg);
if (result < 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to read ior from %s : %p\n",
get_opts.optarg,
"read_ior"),
-1);
break;
case 'k':
server_IOR_ = get_opts.optarg;
break;
case 'i':
iterations = ::atoi (get_opts.optarg);
break;
case '?':
default:
ACE_ERROR_RETURN ((LM_ERROR,
"usage: %s"
"-f server_IOR_file"
"\n",
argv [0]),
-1);
}
if (server_IOR_ == 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Please specify the IOR for the servant\n"), -1);
// Indicates successful parsing of command line.
return 0;
}
void
do_calls (Foo_ptr foo_ptr,
CORBA::Environment &ACE_TRY_ENV)
{
for (int i = 1; i <= iterations; i++)
{
// About half way through
if (i % 3 == 0)
{
foo_ptr->forward (ACE_TRY_ENV);
ACE_CHECK;
}
else
{
// Invoke the doit() method of the foo reference.
CORBA::Long result = foo_ptr->doit (ACE_TRY_ENV);
ACE_CHECK;
// Print the result of doit () method of the foo reference.
ACE_DEBUG ((LM_DEBUG,
"doit() returned %d \n",
result));
}
}
}
int
main (int argc, char **argv)
{
ACE_DECLARE_NEW_CORBA_ENV;
ACE_TRY
{
// Initialize the ORB
CORBA::ORB_var orb = CORBA::ORB_init (argc, argv, 0, ACE_TRY_ENV);
ACE_TRY_CHECK;
// Initialize options based on command-line arguments.
int parse_args_result = parse_args (argc, argv);
if (parse_args_result != 0)
return parse_args_result;
// Get an object reference from the argument string.
CORBA::Object_var object = orb->string_to_object (server_IOR_, ACE_TRY_ENV);
ACE_TRY_CHECK;
// Try to narrow the object reference to a Foo reference.
Foo_var foo_var = Foo::_narrow (object.in (), ACE_TRY_ENV);
ACE_TRY_CHECK;
CORBA::String_var original_location =
orb->object_to_string (foo_var.in (), ACE_TRY_ENV);
ACE_TRY_CHECK;
do_calls (foo_var.in (),
ACE_TRY_ENV);
ACE_TRY_CHECK;
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION, "Exception caught");
return -1;
}
ACE_ENDTRY;
ACE_CHECK_RETURN (-1);
return 0;
}
|
