6 * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
8 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
29 #include <babeltrace/compiler.h>
30 #include <babeltrace/ref.h>
31 #include <babeltrace/plugin/plugin-internal.h>
34 #define PLUGIN_SYMBOL_NAME "__bt_plugin_name"
35 #define PLUGIN_SYMBOL_AUTHOR "__bt_plugin_author"
36 #define PLUGIN_SYMBOL_LICENSE "__bt_plugin_license"
37 #define PLUGIN_SYMBOL_INIT "__bt_plugin_init"
38 #define PLUGIN_SYMBOL_EXIT "__bt_plugin_exit"
41 void bt_plugin_destroy(struct bt_object
*obj
)
43 struct bt_plugin
*plugin
;
46 plugin
= container_of(obj
, struct bt_plugin
, base
);
49 if (!g_module_close(plugin
->module
)) {
50 printf_error("Module close error: %s",
59 struct bt_plugin
*bt_plugin_create(GModule
*module
)
61 struct bt_plugin
*plugin
= NULL
;
62 gpointer symbol
= NULL
;
68 plugin
= g_new0(struct bt_plugin
, 1);
73 bt_object_init(plugin
, bt_plugin_destroy
);
74 if (!g_module_symbol(module
, PLUGIN_SYMBOL_NAME
,
75 (gpointer
*) &plugin
->name
)) {
76 printf_error("Unable to resolve plugin symbol %s from %s",
77 PLUGIN_SYMBOL_NAME
, g_module_name(module
));
81 if (!g_module_symbol(module
, PLUGIN_SYMBOL_LICENSE
,
82 (gpointer
*) &plugin
->license
)) {
83 printf_error("Unable to resolve plugin symbol %s from %s",
84 PLUGIN_SYMBOL_LICENSE
, g_module_name(module
));
87 if (!g_module_symbol(module
, PLUGIN_SYMBOL_INIT
, &symbol
)) {
88 printf_error("Unable to resolve plugin symbol %s from %s",
89 PLUGIN_SYMBOL_INIT
, g_module_name(module
));
92 plugin
->init
= *((bt_plugin_init_func
*) symbol
);
94 printf_error("NULL %s symbol target",
101 if (g_module_symbol(module
, PLUGIN_SYMBOL_EXIT
,
102 (gpointer
*) &symbol
)) {
103 plugin
->exit
= *((bt_plugin_exit_func
*) symbol
);
105 g_module_symbol(module
, PLUGIN_SYMBOL_AUTHOR
,
106 (gpointer
*) &plugin
->author
);
115 enum bt_component_status
bt_plugin_register_component_classes(
116 struct bt_plugin
*plugin
, struct bt_component_factory
*factory
)
118 assert(plugin
&& factory
);
119 return plugin
->init(factory
);
122 const char *bt_plugin_get_name(struct bt_plugin
*plugin
)
124 return plugin
? plugin
->name
: NULL
;
127 const char *bt_plugin_get_author(struct bt_plugin
*plugin
)
129 return plugin
? plugin
->author
: NULL
;
132 const char *bt_plugin_get_license(struct bt_plugin
*plugin
)
134 return plugin
? plugin
->license
: NULL
;
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