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1 | #ifndef BABELTRACE_PLUGIN_COMPONENT_FACTORY_H |
2 | #define BABELTRACE_PLUGIN_COMPONENT_FACTORY_H | |
62ed7c30 JG |
3 | |
4 | /* | |
633edee0 | 5 | * Babeltrace - Component Factory Class Interface. |
62ed7c30 | 6 | * |
633edee0 | 7 | * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
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8 | * |
9 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
10 | * of this software and associated documentation files (the "Software"), to deal | |
11 | * in the Software without restriction, including without limitation the rights | |
12 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
13 | * copies of the Software, and to permit persons to whom the Software is | |
14 | * furnished to do so, subject to the following conditions: | |
15 | * | |
16 | * The above copyright notice and this permission notice shall be included in | |
17 | * all copies or substantial portions of the Software. | |
18 | * | |
19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
22 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
23 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
24 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
25 | * SOFTWARE. | |
26 | */ | |
27 | ||
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28 | #include <babeltrace/plugin/component.h> |
29 | #include <babeltrace/plugin/source.h> | |
30 | #include <babeltrace/plugin/sink.h> | |
31 | #include <babeltrace/plugin/filter.h> | |
0d884c50 | 32 | #include <babeltrace/plugin/plugin-system.h> |
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33 | |
34 | #ifdef __cplusplus | |
35 | extern "C" { | |
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36 | #endif |
37 | ||
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38 | /** |
39 | * Status code. Errors are always negative. | |
40 | */ | |
41 | enum bt_component_factory_status { | |
42 | /** General error. */ | |
43 | BT_COMPONENT_FACTORY_STATUS_ERROR = -128, | |
44 | ||
45 | /** Invalid arguments. */ | |
46 | /* -22 for compatibility with -EINVAL */ | |
47 | BT_COMPONENT_FACTORY_STATUS_INVAL = -22, | |
48 | ||
49 | /** Memory allocation failure. */ | |
50 | /* -12 for compatibility with -ENOMEM */ | |
51 | BT_COMPONENT_FACTORY_STATUS_NOMEM = -12, | |
52 | ||
53 | /** I/O error. */ | |
54 | /* -5 for compatibility with -EIO */ | |
55 | BT_COMPONENT_FACTORY_STATUS_IO = -5, | |
56 | ||
57 | /** No such file or directory. */ | |
58 | /* -2 for compatibility with -ENOENT */ | |
59 | BT_COMPONENT_FACTORY_STATUS_NOENT = -2, | |
60 | ||
61 | /** Operation not permitted. */ | |
62 | /* -1 for compatibility with -EPERM */ | |
63 | BT_COMPONENT_FACTORY_STATUS_PERM = -1, | |
64 | ||
65 | /** No error, okay. */ | |
66 | BT_COMPONENT_FACTORY_STATUS_OK = 0, | |
67 | }; | |
68 | ||
633edee0 | 69 | struct bt_component_factory; |
62ed7c30 | 70 | |
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71 | /** |
72 | * Create a component factory. | |
73 | * | |
74 | * @returns An instance of component factory | |
75 | */ | |
76 | extern | |
77 | struct bt_component_factory *bt_component_factory_create(void); | |
78 | ||
79 | /** | |
80 | * Recursively load and register Babeltrace plugins under a given path. | |
81 | * | |
82 | * Path will be traversed recursively if it is a directory, otherwise only the | |
83 | * provided file will be loaded. | |
84 | * | |
85 | * @param factory A component factory instance | |
86 | * @param path A path to a file or directory | |
87 | * @returns One of #bt_component_factory_status values | |
88 | */ | |
89 | extern | |
90 | enum bt_component_factory_status bt_component_factory_load( | |
91 | struct bt_component_factory *factory, const char *path); | |
62ed7c30 | 92 | |
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93 | extern |
94 | enum bt_component_factory_status | |
95 | bt_component_factory_register_source_component_class( | |
633edee0 | 96 | struct bt_component_factory *factory, const char *name, |
8738a040 | 97 | bt_component_source_init_cb init); |
62ed7c30 | 98 | |
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99 | extern |
100 | enum bt_component_factory_status bt_component_factory_register_sink_component_class( | |
633edee0 | 101 | struct bt_component_factory *factory, const char *name, |
8738a040 | 102 | bt_component_sink_init_cb init); |
62ed7c30 | 103 | |
f3e4505b | 104 | extern |
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105 | void bt_component_factory_destroy(struct bt_component_factory *factory); |
106 | ||
107 | #ifdef __cplusplus | |
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108 | } |
109 | #endif | |
110 | ||
633edee0 | 111 | #endif /* BABELTRACE_PLUGIN_COMPONENT_FACTORY_H */ |