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
|
/* testgmodule.c - test program for GMODULE
* Copyright (C) 1998 Tim Janik
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#undef G_LOG_DOMAIN
#include <gmodule.h>
G_MODULE_EXPORT void
g_clash_func (void)
{
g_print ("GModule: Hello global clash\n");
}
typedef void (*SimpleFunc) (void);
typedef void (*GModuleFunc) (GModule *);
SimpleFunc gplugin_clash_func;
int
main (int arg,
char *argv[])
{
GModule *module_self, *module_a, *module_b;
gchar *string;
gchar *plugin_a, *plugin_b;
SimpleFunc f_a, f_b, f_self;
GModuleFunc gmod_f;
string = g_get_current_dir ();
g_print ("testgmodule (%s):\n", string);
#ifdef NATIVE_WIN32
plugin_a = g_strconcat (string, "\\libgplugin_a.dll", NULL);
plugin_b = g_strconcat (string, "\\libgplugin_b.dll", NULL);
#else /* !NATIVE_WIN32 */
plugin_a = g_strconcat (string, "/.libs/", "libgplugin_a.so", NULL);
plugin_b = g_strconcat (string, "/.libs/", "libgplugin_b.so", NULL);
#endif /* NATIVE_WIN32 */
g_free (string);
/* module handles
*/
g_print ("get main module handle\n");
module_self = g_module_open (NULL, G_MODULE_BIND_LAZY);
if (!module_self)
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
g_print ("load plugin from \"%s\"\n", plugin_a);
module_a = g_module_open (plugin_a, G_MODULE_BIND_LAZY);
if (!module_a)
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
g_print ("load plugin from \"%s\"\n", plugin_b);
module_b = g_module_open (plugin_b, G_MODULE_BIND_LAZY);
if (!module_b)
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
/* get plugin specific symbols and call them
*/
string = "gplugin_a_func";
g_print ("retrive symbol `%s' from \"%s\"\n", string, g_basename (g_module_name (module_a)));
if (!g_module_symbol (module_a, string, (gpointer) &f_a))
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
string = "gplugin_b_func";
g_print ("retrive symbol `%s' from \"%s\"\n", string, g_basename (g_module_name (module_b)));
if (!g_module_symbol (module_b, string, (gpointer) &f_b))
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
g_print ("call plugin function(%p) A: ", f_a);
f_a ();
g_print ("call plugin function(%p) B: ", f_b);
f_b ();
/* get and call globally clashing functions
*/
string = "g_clash_func";
g_print ("retrive symbol `%s' from \"%s\"\n", string, g_basename (g_module_name (module_self)));
if (!g_module_symbol (module_self, string, (gpointer) &f_self))
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
g_print ("retrive symbol `%s' from \"%s\"\n", string, g_basename (g_module_name (module_a)));
if (!g_module_symbol (module_a, string, (gpointer) &f_a))
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
g_print ("retrive symbol `%s' from \"%s\"\n", string, g_basename (g_module_name (module_b)));
if (!g_module_symbol (module_b, string, (gpointer) &f_b))
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
g_print ("call plugin function(%p) self: ", f_self);
f_self ();
g_print ("call plugin function(%p) A: ", f_a);
f_a ();
g_print ("call plugin function(%p) B: ", f_b);
f_b ();
/* get and call clashing plugin functions
*/
string = "gplugin_clash_func";
g_print ("retrive symbol `%s' from \"%s\"\n", string, g_basename (g_module_name (module_a)));
if (!g_module_symbol (module_a, string, (gpointer) &f_a))
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
g_print ("retrive symbol `%s' from \"%s\"\n", string, g_basename (g_module_name (module_b)));
if (!g_module_symbol (module_b, string, (gpointer) &f_b))
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
g_print ("call plugin function(%p) A: ", f_a);
gplugin_clash_func = f_a;
gplugin_clash_func ();
g_print ("call plugin function(%p) B: ", f_b);
gplugin_clash_func = f_b;
gplugin_clash_func ();
/* call gmodule function form A
*/
string = "gplugin_a_module_func";
g_print ("retrive symbol `%s' from \"%s\"\n", string, g_basename (g_module_name (module_a)));
if (!g_module_symbol (module_a, string, (gpointer) &gmod_f))
{
g_print ("error: %s\n", g_module_error ());
return 1;
}
g_print ("call plugin A's module function(%p):\n{\n", gmod_f);
gmod_f (module_b);
g_print ("}\n");
/* unload plugins
*/
g_print ("unload plugin A:\n");
if (!g_module_close (module_a))
g_print ("error: %s\n", g_module_error ());
g_print ("unload plugin B:\n");
if (!g_module_close (module_b))
g_print ("error: %s\n", g_module_error ());
#if 0
g_log_set_fatal_mask ("GModule", G_LOG_FATAL_MASK|G_LOG_LEVEL_WARNING);
g_module_symbol (0, 0, 0);
g_warning("jahooo");
g_on_error_query (".libs/testgmodule");
#endif
return 0;
}
|
