4 * Babeltrace Trace Trimmer
6 * Copyright 2016 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/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>
40 void destroy_trimmer_data(struct trimmer
*trimmer
)
46 struct trimmer
*create_trimmer_data(void)
48 struct trimmer
*trimmer
;
50 trimmer
= g_new0(struct trimmer
, 1);
59 void destroy_trimmer(struct bt_component
*component
)
61 void *data
= bt_component_get_private_data(component
);
63 destroy_trimmer_data(data
);
67 void init_from_params(struct trimmer
*trimmer
, struct bt_value
*params
)
69 struct bt_value
*value
= NULL
;
73 value
= bt_value_map_get(params
, "begin_ns_epoch");
74 if (value
&& bt_value_is_integer(value
)) {
75 enum bt_value_status value_ret
;
77 value_ret
= bt_value_integer_get(value
, &trimmer
->begin
.value
);
79 trimmer
->begin
.set
= true;
81 printf_error("Failed to retrieve begin_ns_epoch value\n");
85 value
= bt_value_map_get(params
, "end_ns_epoch");
86 if (value
&& bt_value_is_integer(value
)) {
87 enum bt_value_status value_ret
;
89 value_ret
= bt_value_integer_get(value
, &trimmer
->end
.value
);
91 trimmer
->end
.set
= true;
93 printf_error("Failed to retrieve end_ns_epoch value\n");
99 enum bt_component_status
trimmer_component_init(
100 struct bt_component
*component
, struct bt_value
*params
)
102 enum bt_component_status ret
;
103 struct trimmer
*trimmer
= create_trimmer_data();
106 ret
= BT_COMPONENT_STATUS_NOMEM
;
110 ret
= bt_component_set_destroy_cb(component
,
112 if (ret
!= BT_COMPONENT_STATUS_OK
) {
116 ret
= bt_component_set_private_data(component
, trimmer
);
117 if (ret
!= BT_COMPONENT_STATUS_OK
) {
121 ret
= bt_component_filter_set_iterator_init_cb(component
,
122 trimmer_iterator_init
);
123 if (ret
!= BT_COMPONENT_STATUS_OK
) {
127 init_from_params(trimmer
, params
);
131 destroy_trimmer_data(trimmer
);
135 /* Initialize plug-in entry points. */
136 BT_PLUGIN_NAME("utils");
137 BT_PLUGIN_DESCRIPTION("Babeltrace Trace Trimmer Plug-In.");
138 BT_PLUGIN_AUTHOR("Jérémie Galarneau");
139 BT_PLUGIN_LICENSE("MIT");
141 BT_PLUGIN_COMPONENT_CLASSES_BEGIN
142 BT_PLUGIN_FILTER_COMPONENT_CLASS_ENTRY("trimmer",
143 "Ensure that trace notifications outside of a given range are filtered-out.",
144 trimmer_component_init
)
145 BT_PLUGIN_COMPONENT_CLASSES_END