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1ca80abd PP |
1 | #ifndef BABELTRACE_GRAPH_COMPONENT_CLASS_H |
2 | #define BABELTRACE_GRAPH_COMPONENT_CLASS_H | |
fc11e32c JG |
3 | |
4 | /* | |
5 | * Babeltrace - Component Class Interface. | |
6 | * | |
7 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
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 | ||
cd95962c | 28 | #include <stdint.h> |
cc469c42 PP |
29 | #include <babeltrace/graph/component-status.h> |
30 | #include <babeltrace/graph/notification-iterator.h> | |
c55a9f58 | 31 | #include <babeltrace/types.h> |
33b34c43 | 32 | |
fc11e32c JG |
33 | #ifdef __cplusplus |
34 | extern "C" { | |
35 | #endif | |
36 | ||
fc11e32c | 37 | struct bt_component_class; |
cd95962c | 38 | struct bt_component; |
890882ef PP |
39 | struct bt_private_component; |
40 | struct bt_private_port; | |
8f4799f7 | 41 | struct bt_port; |
cd95962c | 42 | struct bt_value; |
890882ef | 43 | struct bt_private_notification_iterator; |
fc11e32c | 44 | |
d3e4dcd8 PP |
45 | /** |
46 | * Component class type. | |
47 | */ | |
48 | enum bt_component_class_type { | |
49 | BT_COMPONENT_CLASS_TYPE_UNKNOWN = -1, | |
50 | ||
51 | /** A source component is a notification generator. */ | |
52 | BT_COMPONENT_CLASS_TYPE_SOURCE = 0, | |
53 | ||
54 | /** A sink component handles incoming notifications. */ | |
55 | BT_COMPONENT_CLASS_TYPE_SINK = 1, | |
56 | ||
57 | /** A filter component implements both Source and Sink interfaces. */ | |
58 | BT_COMPONENT_CLASS_TYPE_FILTER = 2, | |
59 | }; | |
60 | ||
a22f4171 PP |
61 | struct bt_notification_iterator_next_return { |
62 | struct bt_notification *notification; | |
63 | enum bt_notification_iterator_status status; | |
64 | }; | |
65 | ||
d3e4dcd8 | 66 | typedef enum bt_component_status (*bt_component_class_init_method)( |
890882ef PP |
67 | struct bt_private_component *private_component, |
68 | struct bt_value *params, void *init_method_data); | |
d3e4dcd8 | 69 | |
64cadc66 | 70 | typedef void (*bt_component_class_finalize_method)( |
890882ef | 71 | struct bt_private_component *private_component); |
d3e4dcd8 | 72 | |
d3eb6e8f PP |
73 | typedef enum bt_notification_iterator_status |
74 | (*bt_component_class_notification_iterator_init_method)( | |
91457551 PP |
75 | struct bt_private_notification_iterator *private_notification_iterator, |
76 | struct bt_private_port *private_port); | |
d3eb6e8f | 77 | |
64cadc66 | 78 | typedef void (*bt_component_class_notification_iterator_finalize_method)( |
890882ef | 79 | struct bt_private_notification_iterator *private_notification_iterator); |
d3eb6e8f | 80 | |
41a2b7ae | 81 | typedef struct bt_notification_iterator_next_return (*bt_component_class_notification_iterator_next_method)( |
890882ef | 82 | struct bt_private_notification_iterator *private_notification_iterator); |
d3eb6e8f PP |
83 | |
84 | typedef enum bt_notification_iterator_status | |
85 | (*bt_component_class_notification_iterator_seek_time_method)( | |
890882ef PP |
86 | struct bt_private_notification_iterator *private_notification_iterator, |
87 | int64_t time); | |
d3eb6e8f | 88 | |
a67681c1 | 89 | typedef struct bt_value *(*bt_component_class_query_method)( |
efa96d5d | 90 | struct bt_component_class *component_class, |
a67681c1 | 91 | const char *object, struct bt_value *params); |
efa96d5d | 92 | |
72b913fb | 93 | typedef enum bt_component_status (*bt_component_class_accept_port_connection_method)( |
890882ef | 94 | struct bt_private_component *private_component, |
8f4799f7 PP |
95 | struct bt_private_port *self_private_port, |
96 | struct bt_port *other_port); | |
72b913fb | 97 | |
0d8b4d8e PP |
98 | typedef void (*bt_component_class_port_connected_method)( |
99 | struct bt_private_component *private_component, | |
100 | struct bt_private_port *self_private_port, | |
101 | struct bt_port *other_port); | |
102 | ||
72b913fb | 103 | typedef void (*bt_component_class_port_disconnected_method)( |
890882ef PP |
104 | struct bt_private_component *private_component, |
105 | struct bt_private_port *private_port); | |
2d41b99e | 106 | |
d3e4dcd8 PP |
107 | extern int bt_component_class_set_init_method( |
108 | struct bt_component_class *component_class, | |
109 | bt_component_class_init_method init_method); | |
110 | ||
64cadc66 | 111 | extern int bt_component_class_set_finalize_method( |
d3e4dcd8 | 112 | struct bt_component_class *component_class, |
64cadc66 | 113 | bt_component_class_finalize_method finalize_method); |
d3e4dcd8 | 114 | |
72b913fb PP |
115 | extern int bt_component_class_set_accept_port_connection_method( |
116 | struct bt_component_class *component_class, | |
117 | bt_component_class_accept_port_connection_method accept_port_connection_method); | |
118 | ||
0d8b4d8e PP |
119 | extern int bt_component_class_set_port_connected_method( |
120 | struct bt_component_class *component_class, | |
121 | bt_component_class_port_connected_method port_connected_method); | |
122 | ||
72b913fb | 123 | extern int bt_component_class_set_port_disconnected_method( |
2d41b99e | 124 | struct bt_component_class *component_class, |
72b913fb PP |
125 | bt_component_class_port_disconnected_method port_disconnected_method); |
126 | ||
127 | extern int bt_component_class_set_query_method( | |
128 | struct bt_component_class *component_class, | |
129 | bt_component_class_query_method query_method); | |
2d41b99e | 130 | |
d3e4dcd8 PP |
131 | extern int bt_component_class_set_description( |
132 | struct bt_component_class *component_class, | |
133 | const char *description); | |
38b48196 | 134 | |
5536d9a6 PP |
135 | extern int bt_component_class_set_help( |
136 | struct bt_component_class *component_class, | |
137 | const char *help); | |
138 | ||
1e4d8103 PP |
139 | extern int bt_component_class_freeze( |
140 | struct bt_component_class *component_class); | |
141 | ||
38b48196 JG |
142 | /** |
143 | * Get a component class' name. | |
144 | * | |
145 | * @param component_class Component class of which to get the name | |
146 | * @returns Name of the component class | |
147 | */ | |
148 | extern const char *bt_component_class_get_name( | |
149 | struct bt_component_class *component_class); | |
150 | ||
7c7c0433 JG |
151 | /** |
152 | * Get a component class' description. | |
153 | * | |
154 | * Component classes may provide an optional description. It may, however, | |
155 | * opt not to. | |
156 | * | |
157 | * @param component_class Component class of which to get the description | |
158 | * @returns Description of the component class, or NULL. | |
159 | */ | |
f3bc2010 | 160 | extern const char *bt_component_class_get_description( |
7c7c0433 JG |
161 | struct bt_component_class *component_class); |
162 | ||
5536d9a6 PP |
163 | extern const char *bt_component_class_get_help( |
164 | struct bt_component_class *component_class); | |
165 | ||
a67681c1 | 166 | extern struct bt_value *bt_component_class_query( |
efa96d5d | 167 | struct bt_component_class *component_class, |
a67681c1 | 168 | const char *object, struct bt_value *params); |
efa96d5d | 169 | |
38b48196 JG |
170 | /** |
171 | * Get a component class' type. | |
172 | * | |
173 | * @param component_class Component class of which to get the type | |
174 | * @returns One of #bt_component_type | |
175 | */ | |
d3e4dcd8 | 176 | extern enum bt_component_class_type bt_component_class_get_type( |
fc11e32c JG |
177 | struct bt_component_class *component_class); |
178 | ||
2154eb7d | 179 | static inline |
c55a9f58 | 180 | bt_bool bt_component_class_is_source(struct bt_component_class *component_class) |
2154eb7d PP |
181 | { |
182 | return bt_component_class_get_type(component_class) == | |
183 | BT_COMPONENT_CLASS_TYPE_SOURCE; | |
184 | } | |
185 | ||
186 | static inline | |
c55a9f58 | 187 | bt_bool bt_component_class_is_filter(struct bt_component_class *component_class) |
2154eb7d PP |
188 | { |
189 | return bt_component_class_get_type(component_class) == | |
190 | BT_COMPONENT_CLASS_TYPE_FILTER; | |
191 | } | |
192 | ||
193 | static inline | |
c55a9f58 | 194 | bt_bool bt_component_class_is_sink(struct bt_component_class *component_class) |
2154eb7d PP |
195 | { |
196 | return bt_component_class_get_type(component_class) == | |
197 | BT_COMPONENT_CLASS_TYPE_SINK; | |
198 | } | |
199 | ||
d3e4dcd8 PP |
200 | #ifdef __cplusplus |
201 | } | |
202 | #endif | |
203 | ||
1ca80abd | 204 | #endif /* BABELTRACE_GRAPH_COMPONENT_CLASS_H */ |