Commit | Line | Data |
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fb2dcc52 JG |
1 | /* |
2 | * component-class.c | |
3 | * | |
4 | * Babeltrace Plugin Component Class | |
33b34c43 | 5 | * |
3310b217 | 6 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
fb2dcc52 JG |
7 | * |
8 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
9 | * | |
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: | |
16 | * | |
17 | * The above copyright notice and this permission notice shall be included in | |
18 | * all copies or substantial portions of the Software. | |
19 | * | |
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 | |
26 | * SOFTWARE. | |
27 | */ | |
28 | ||
29 | #include <babeltrace/compiler.h> | |
33b34c43 | 30 | #include <babeltrace/component/component-class-internal.h> |
b8a06801 | 31 | #include <babeltrace/ref.h> |
fb2dcc52 JG |
32 | #include <glib.h> |
33 | ||
34 | static | |
b8a06801 | 35 | void bt_component_class_destroy(struct bt_object *obj) |
fb2dcc52 JG |
36 | { |
37 | struct bt_component_class *class; | |
33b34c43 | 38 | int i; |
fb2dcc52 | 39 | |
b8a06801 JG |
40 | assert(obj); |
41 | class = container_of(obj, struct bt_component_class, base); | |
33b34c43 PP |
42 | |
43 | /* Call destroy listeners in reverse registration order */ | |
44 | for (i = class->destroy_listeners->len - 1; i >= 0; i--) { | |
45 | struct bt_component_class_destroyer_listener *listener = | |
46 | &g_array_index(class->destroy_listeners, | |
47 | struct bt_component_class_destroyer_listener, | |
48 | i); | |
49 | ||
50 | listener->func(class, listener->data); | |
51 | } | |
52 | ||
fb2dcc52 JG |
53 | if (class->name) { |
54 | g_string_free(class->name, TRUE); | |
55 | } | |
7c7c0433 JG |
56 | if (class->description) { |
57 | g_string_free(class->description, TRUE); | |
58 | } | |
33b34c43 PP |
59 | if (class->destroy_listeners) { |
60 | g_array_free(class->destroy_listeners, TRUE); | |
61 | } | |
b8a06801 | 62 | |
fb2dcc52 JG |
63 | g_free(class); |
64 | } | |
65 | ||
fb2dcc52 JG |
66 | struct bt_component_class *bt_component_class_create( |
67 | enum bt_component_type type, const char *name, | |
33b34c43 | 68 | const char *description, bt_component_init_cb init) |
fb2dcc52 | 69 | { |
6ba0b073 PP |
70 | struct bt_component_class *class = NULL; |
71 | ||
72 | if (!name) { | |
73 | goto end; | |
74 | } | |
fb2dcc52 JG |
75 | |
76 | class = g_new0(struct bt_component_class, 1); | |
77 | if (!class) { | |
78 | goto end; | |
79 | } | |
80 | ||
b8a06801 | 81 | bt_object_init(class, bt_component_class_destroy); |
fb2dcc52 | 82 | class->type = type; |
4b70dd83 | 83 | class->init = init; |
fb2dcc52 | 84 | class->name = g_string_new(name); |
6ba0b073 PP |
85 | if (!class->name) { |
86 | BT_PUT(class); | |
fb2dcc52 JG |
87 | goto end; |
88 | } | |
6ba0b073 PP |
89 | |
90 | if (description) { | |
91 | class->description = g_string_new(description); | |
92 | if (!class->description) { | |
93 | BT_PUT(class); | |
94 | goto end; | |
95 | } | |
96 | } | |
97 | ||
33b34c43 PP |
98 | class->destroy_listeners = g_array_new(FALSE, TRUE, |
99 | sizeof(struct bt_component_class_destroyer_listener)); | |
100 | if (!class->destroy_listeners) { | |
101 | BT_PUT(class); | |
102 | goto end; | |
103 | } | |
fb2dcc52 JG |
104 | end: |
105 | return class; | |
106 | } | |
38b48196 JG |
107 | |
108 | const char *bt_component_class_get_name( | |
109 | struct bt_component_class *component_class) | |
110 | { | |
111 | return component_class ? component_class->name->str : NULL; | |
112 | } | |
113 | ||
114 | enum bt_component_type bt_component_class_get_type( | |
115 | struct bt_component_class *component_class) | |
116 | { | |
117 | return component_class ? component_class->type : | |
118 | BT_COMPONENT_TYPE_UNKNOWN; | |
119 | } | |
120 | ||
33b34c43 | 121 | const char *bt_component_class_get_description( |
38b48196 JG |
122 | struct bt_component_class *component_class) |
123 | { | |
6ba0b073 PP |
124 | return component_class && component_class->description ? |
125 | component_class->description->str : NULL; | |
38b48196 | 126 | } |
7c7c0433 | 127 | |
33b34c43 PP |
128 | BT_HIDDEN |
129 | int bt_component_class_add_destroy_listener(struct bt_component_class *class, | |
130 | bt_component_class_destroy_listener_func func, void *data) | |
7c7c0433 | 131 | { |
33b34c43 PP |
132 | int ret = 0; |
133 | struct bt_component_class_destroyer_listener listener; | |
134 | ||
135 | if (!class || !func) { | |
136 | ret = -1; | |
137 | goto end; | |
138 | } | |
139 | ||
140 | listener.func = func; | |
141 | listener.data = data; | |
142 | g_array_append_val(class->destroy_listeners, listener); | |
143 | ||
144 | end: | |
145 | return ret; | |
7c7c0433 | 146 | } |