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cab3f160 JG |
1 | /* |
2 | * trimmer.c | |
3 | * | |
4 | * Babeltrace Trace Trimmer | |
5 | * | |
6 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
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/plugin/plugin-macros.h> | |
30 | #include <babeltrace/plugin/component.h> | |
31 | #include <babeltrace/plugin/filter.h> | |
32 | #include <babeltrace/plugin/notification/notification.h> | |
33 | #include <babeltrace/plugin/notification/iterator.h> | |
34 | #include <babeltrace/plugin/notification/event.h> | |
35 | #include "trimmer.h" | |
36 | #include "iterator.h" | |
37 | ||
38 | static | |
39 | void destroy_trimmer_data(struct trimmer *trimmer) | |
40 | { | |
41 | g_free(trimmer); | |
42 | } | |
43 | ||
44 | static | |
45 | struct trimmer *create_trimmer_data(void) | |
46 | { | |
47 | struct trimmer *trimmer; | |
48 | ||
49 | trimmer = g_new0(struct trimmer, 1); | |
50 | if (!trimmer) { | |
51 | goto end; | |
52 | } | |
53 | end: | |
54 | return trimmer; | |
55 | } | |
56 | ||
57 | static | |
58 | void destroy_trimmer(struct bt_component *component) | |
59 | { | |
60 | void *data = bt_component_get_private_data(component); | |
61 | ||
62 | destroy_trimmer_data(data); | |
63 | } | |
64 | ||
65 | enum bt_component_status trimmer_component_init( | |
66 | struct bt_component *component, struct bt_value *params) | |
67 | { | |
68 | enum bt_component_status ret; | |
69 | struct trimmer *trimmer = create_trimmer_data(); | |
70 | ||
71 | if (!trimmer) { | |
72 | ret = BT_COMPONENT_STATUS_NOMEM; | |
73 | goto end; | |
74 | } | |
75 | ||
76 | ret = bt_component_set_destroy_cb(component, | |
77 | destroy_trimmer); | |
78 | if (ret != BT_COMPONENT_STATUS_OK) { | |
79 | goto error; | |
80 | } | |
81 | ||
82 | ret = bt_component_set_private_data(component, trimmer); | |
83 | if (ret != BT_COMPONENT_STATUS_OK) { | |
84 | goto error; | |
85 | } | |
86 | ||
87 | ret = bt_component_filter_set_iterator_init_cb(component, | |
88 | trimmer_iterator_init); | |
89 | if (ret != BT_COMPONENT_STATUS_OK) { | |
90 | goto error; | |
91 | } | |
92 | end: | |
93 | return ret; | |
94 | error: | |
95 | destroy_trimmer_data(trimmer); | |
96 | return ret; | |
97 | } | |
98 | ||
99 | /* Initialize plug-in entry points. */ | |
100 | BT_PLUGIN_NAME("trimmer"); | |
101 | BT_PLUGIN_DESCRIPTION("Babeltrace Trace Trimmer Plug-In."); | |
102 | BT_PLUGIN_AUTHOR("Jérémie Galarneau"); | |
103 | BT_PLUGIN_LICENSE("MIT"); | |
104 | ||
105 | BT_PLUGIN_COMPONENT_CLASSES_BEGIN | |
106 | BT_PLUGIN_FILTER_COMPONENT_CLASS_ENTRY("trimmer", | |
107 | "Ensure that trace notifications outside of a given range are filtered-out.", | |
108 | trimmer_component_init) | |
109 | BT_PLUGIN_COMPONENT_CLASSES_END |