Commit | Line | Data |
---|---|---|
7a278c8e | 1 | /* |
ea0b4b9e | 2 | * fs.c |
7a278c8e | 3 | * |
ea0b4b9e | 4 | * Babeltrace CTF file system Reader Component |
7a278c8e | 5 | * |
f3bc2010 | 6 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
7a278c8e 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 | ||
ea0b4b9e | 29 | #include <babeltrace/plugin/plugin-system.h> |
760051fa | 30 | #include <babeltrace/plugin/notification/iterator.h> |
ea0b4b9e JG |
31 | #include <glib.h> |
32 | #include <assert.h> | |
6a29d9fd | 33 | #include "fs-internal.h" |
ea0b4b9e JG |
34 | |
35 | static bool ctf_fs_debug; | |
36 | ||
37 | static | |
760051fa JG |
38 | struct bt_notification *ctf_fs_iterator_get( |
39 | struct bt_notification_iterator *iterator) | |
ea0b4b9e | 40 | { |
760051fa | 41 | return NULL; |
ea0b4b9e JG |
42 | } |
43 | ||
44 | static | |
760051fa JG |
45 | enum bt_notification_iterator_status ctf_fs_iterator_next( |
46 | struct bt_notification_iterator *iterator) | |
ea0b4b9e | 47 | { |
760051fa | 48 | return BT_NOTIFICATION_ITERATOR_STATUS_UNSUPPORTED; |
ea0b4b9e | 49 | } |
bfd20a42 | 50 | |
760051fa JG |
51 | static |
52 | void ctf_fs_iterator_destroy_data(struct ctf_fs_iterator *ctf_it) | |
53 | { | |
54 | g_free(ctf_it); | |
55 | } | |
56 | ||
57 | static | |
58 | void ctf_fs_iterator_destroy(struct bt_notification_iterator *it) | |
59 | { | |
60 | void *data = bt_notification_iterator_get_private_data(it); | |
61 | ||
62 | ctf_fs_iterator_destroy_data(data); | |
63 | } | |
64 | ||
65 | static | |
ea0b4b9e JG |
66 | enum bt_component_status ctf_fs_iterator_init(struct bt_component *source, |
67 | struct bt_notification_iterator *it) | |
4c1456f0 | 68 | { |
ea0b4b9e | 69 | enum bt_component_status ret = BT_COMPONENT_STATUS_OK; |
760051fa | 70 | struct ctf_fs_iterator *ctf_it; |
ea0b4b9e JG |
71 | |
72 | assert(source && it); | |
760051fa JG |
73 | ctf_it = g_new0(struct ctf_fs_iterator, 1); |
74 | if (!ctf_it) { | |
75 | ret = BT_COMPONENT_STATUS_NOMEM; | |
76 | goto end; | |
77 | } | |
78 | ||
79 | ret = bt_notification_iterator_set_get_cb(it, ctf_fs_iterator_get); | |
80 | if (ret) { | |
81 | goto error; | |
82 | } | |
83 | ||
84 | ret = bt_notification_iterator_set_next_cb(it, ctf_fs_iterator_next); | |
85 | if (ret) { | |
86 | goto error; | |
87 | } | |
88 | ||
89 | ret = bt_notification_iterator_set_destroy_cb(it, | |
90 | ctf_fs_iterator_destroy); | |
91 | if (ret) { | |
92 | goto error; | |
93 | } | |
94 | ||
95 | ret = bt_notification_iterator_set_private_data(it, ctf_it); | |
96 | if (ret) { | |
97 | goto error; | |
98 | } | |
99 | end: | |
ea0b4b9e | 100 | return ret; |
760051fa JG |
101 | error: |
102 | (void) bt_notification_iterator_set_private_data(it, NULL); | |
103 | ctf_fs_iterator_destroy_data(ctf_it); | |
104 | return ret; | |
105 | } | |
106 | ||
107 | static | |
108 | struct ctf_fs_component *ctf_fs_create(struct bt_value *params) | |
109 | { | |
110 | return g_new0(struct ctf_fs_component, 1); | |
111 | } | |
112 | ||
113 | static | |
114 | void ctf_fs_destroy_data(struct ctf_fs_component *component) | |
115 | { | |
116 | g_free(component); | |
117 | } | |
118 | ||
119 | static | |
120 | void ctf_fs_destroy(struct bt_component *component) | |
121 | { | |
122 | void *data = bt_component_get_private_data(component); | |
123 | ||
124 | ctf_fs_destroy_data(data); | |
4c1456f0 JG |
125 | } |
126 | ||
ea0b4b9e JG |
127 | BT_HIDDEN |
128 | enum bt_component_status ctf_fs_init(struct bt_component *source, | |
5c80adeb | 129 | struct bt_value *params) |
ea0b4b9e JG |
130 | { |
131 | struct ctf_fs_component *ctf_fs; | |
132 | enum bt_component_status ret = BT_COMPONENT_STATUS_OK; | |
133 | ||
134 | assert(source); | |
135 | ctf_fs_debug = g_strcmp0(getenv("CTF_FS_DEBUG"), "1") == 0; | |
136 | ctf_fs = ctf_fs_create(params); | |
137 | if (!ctf_fs) { | |
138 | ret = BT_COMPONENT_STATUS_NOMEM; | |
139 | goto end; | |
140 | } | |
4c1456f0 | 141 | |
ea0b4b9e JG |
142 | ret = bt_component_set_destroy_cb(source, ctf_fs_destroy); |
143 | if (ret != BT_COMPONENT_STATUS_OK) { | |
144 | goto error; | |
145 | } | |
146 | ||
147 | ret = bt_component_set_private_data(source, ctf_fs); | |
148 | if (ret != BT_COMPONENT_STATUS_OK) { | |
149 | goto error; | |
150 | } | |
151 | ||
152 | ret = bt_component_source_set_iterator_init_cb(source, | |
153 | ctf_fs_iterator_init); | |
154 | if (ret != BT_COMPONENT_STATUS_OK) { | |
155 | goto error; | |
156 | } | |
157 | end: | |
158 | return ret; | |
159 | error: | |
160 | (void) bt_component_set_private_data(source, NULL); | |
760051fa | 161 | ctf_fs_destroy_data(ctf_fs); |
ea0b4b9e JG |
162 | return ret; |
163 | } |