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34ac9eaf JG |
1 | /* |
2 | * correlator.c | |
3 | * | |
4 | * Babeltrace Trace Correlator | |
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 "correlator.h" | |
36 | ||
37 | static | |
38 | void destroy_correlator_data(struct correlator *correlator) | |
39 | { | |
40 | g_free(correlator); | |
41 | } | |
42 | ||
43 | static | |
44 | struct correlator *create_correlator(void) | |
45 | { | |
46 | struct correlator *correlator; | |
47 | ||
48 | correlator = g_new0(struct correlator, 1); | |
49 | if (!correlator) { | |
50 | goto end; | |
51 | } | |
52 | end: | |
53 | return correlator; | |
54 | } | |
55 | ||
56 | static | |
57 | void destroy_correlator(struct bt_component *component) | |
58 | { | |
59 | void *data = bt_component_get_private_data(component); | |
60 | ||
61 | destroy_correlator_data(data); | |
62 | } | |
63 | ||
64 | enum bt_component_status correlator_component_init( | |
65 | struct bt_component *component, struct bt_value *params) | |
66 | { | |
67 | enum bt_component_status ret; | |
68 | struct correlator *correlator = create_correlator(); | |
69 | ||
70 | if (!correlator) { | |
71 | ret = BT_COMPONENT_STATUS_NOMEM; | |
72 | goto end; | |
73 | } | |
74 | ||
75 | ret = bt_component_set_destroy_cb(component, | |
76 | destroy_correlator); | |
77 | if (ret != BT_COMPONENT_STATUS_OK) { | |
78 | goto error; | |
79 | } | |
80 | ||
81 | ret = bt_component_set_private_data(component, correlator); | |
82 | if (ret != BT_COMPONENT_STATUS_OK) { | |
83 | goto error; | |
84 | } | |
85 | end: | |
86 | return ret; | |
87 | error: | |
88 | destroy_correlator_data(correlator); | |
89 | return ret; | |
90 | } | |
91 | ||
92 | /* Initialize plug-in entry points. */ | |
93 | BT_PLUGIN_NAME("correlator"); | |
94 | BT_PLUGIN_DESCRIPTION("Babeltrace Trace Correlator Plug-In."); | |
95 | BT_PLUGIN_AUTHOR("Jérémie Galarneau"); | |
96 | BT_PLUGIN_LICENSE("MIT"); | |
97 | ||
98 | BT_PLUGIN_COMPONENT_CLASSES_BEGIN | |
99 | BT_PLUGIN_FILTER_COMPONENT_CLASS_ENTRY("correlator", | |
100 | "Time-correlate multiple traces.", | |
101 | correlator_component_init) | |
102 | BT_PLUGIN_COMPONENT_CLASSES_END |