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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 | ||
61 | typedef enum bt_component_status (*bt_component_class_init_method)( | |
890882ef PP |
62 | struct bt_private_component *private_component, |
63 | struct bt_value *params, void *init_method_data); | |
d3e4dcd8 | 64 | |
64cadc66 | 65 | typedef void (*bt_component_class_finalize_method)( |
890882ef | 66 | struct bt_private_component *private_component); |
d3e4dcd8 | 67 | |
d3eb6e8f PP |
68 | typedef enum bt_notification_iterator_status |
69 | (*bt_component_class_notification_iterator_init_method)( | |
91457551 PP |
70 | struct bt_private_notification_iterator *private_notification_iterator, |
71 | struct bt_private_port *private_port); | |
d3eb6e8f | 72 | |
64cadc66 | 73 | typedef void (*bt_component_class_notification_iterator_finalize_method)( |
890882ef | 74 | struct bt_private_notification_iterator *private_notification_iterator); |
d3eb6e8f | 75 | |
41a2b7ae | 76 | typedef struct bt_notification_iterator_next_return (*bt_component_class_notification_iterator_next_method)( |
890882ef | 77 | struct bt_private_notification_iterator *private_notification_iterator); |
d3eb6e8f PP |
78 | |
79 | typedef enum bt_notification_iterator_status | |
80 | (*bt_component_class_notification_iterator_seek_time_method)( | |
890882ef PP |
81 | struct bt_private_notification_iterator *private_notification_iterator, |
82 | int64_t time); | |
d3eb6e8f | 83 | |
a67681c1 | 84 | typedef struct bt_value *(*bt_component_class_query_method)( |
efa96d5d | 85 | struct bt_component_class *component_class, |
a67681c1 | 86 | const char *object, struct bt_value *params); |
efa96d5d | 87 | |
72b913fb | 88 | typedef enum bt_component_status (*bt_component_class_accept_port_connection_method)( |
890882ef | 89 | struct bt_private_component *private_component, |
8f4799f7 PP |
90 | struct bt_private_port *self_private_port, |
91 | struct bt_port *other_port); | |
72b913fb | 92 | |
0d8b4d8e PP |
93 | typedef void (*bt_component_class_port_connected_method)( |
94 | struct bt_private_component *private_component, | |
95 | struct bt_private_port *self_private_port, | |
96 | struct bt_port *other_port); | |
97 | ||
72b913fb | 98 | typedef void (*bt_component_class_port_disconnected_method)( |
890882ef PP |
99 | struct bt_private_component *private_component, |
100 | struct bt_private_port *private_port); | |
2d41b99e | 101 | |
d3e4dcd8 PP |
102 | extern int bt_component_class_set_init_method( |
103 | struct bt_component_class *component_class, | |
104 | bt_component_class_init_method init_method); | |
105 | ||
64cadc66 | 106 | extern int bt_component_class_set_finalize_method( |
d3e4dcd8 | 107 | struct bt_component_class *component_class, |
64cadc66 | 108 | bt_component_class_finalize_method finalize_method); |
d3e4dcd8 | 109 | |
72b913fb PP |
110 | extern int bt_component_class_set_accept_port_connection_method( |
111 | struct bt_component_class *component_class, | |
112 | bt_component_class_accept_port_connection_method accept_port_connection_method); | |
113 | ||
0d8b4d8e PP |
114 | extern int bt_component_class_set_port_connected_method( |
115 | struct bt_component_class *component_class, | |
116 | bt_component_class_port_connected_method port_connected_method); | |
117 | ||
72b913fb | 118 | extern int bt_component_class_set_port_disconnected_method( |
2d41b99e | 119 | struct bt_component_class *component_class, |
72b913fb PP |
120 | bt_component_class_port_disconnected_method port_disconnected_method); |
121 | ||
122 | extern int bt_component_class_set_query_method( | |
123 | struct bt_component_class *component_class, | |
124 | bt_component_class_query_method query_method); | |
2d41b99e | 125 | |
d3e4dcd8 PP |
126 | extern int bt_component_class_set_description( |
127 | struct bt_component_class *component_class, | |
128 | const char *description); | |
38b48196 | 129 | |
5536d9a6 PP |
130 | extern int bt_component_class_set_help( |
131 | struct bt_component_class *component_class, | |
132 | const char *help); | |
133 | ||
1e4d8103 PP |
134 | extern int bt_component_class_freeze( |
135 | struct bt_component_class *component_class); | |
136 | ||
38b48196 JG |
137 | /** |
138 | * Get a component class' name. | |
139 | * | |
140 | * @param component_class Component class of which to get the name | |
141 | * @returns Name of the component class | |
142 | */ | |
143 | extern const char *bt_component_class_get_name( | |
144 | struct bt_component_class *component_class); | |
145 | ||
7c7c0433 JG |
146 | /** |
147 | * Get a component class' description. | |
148 | * | |
149 | * Component classes may provide an optional description. It may, however, | |
150 | * opt not to. | |
151 | * | |
152 | * @param component_class Component class of which to get the description | |
153 | * @returns Description of the component class, or NULL. | |
154 | */ | |
f3bc2010 | 155 | extern const char *bt_component_class_get_description( |
7c7c0433 JG |
156 | struct bt_component_class *component_class); |
157 | ||
5536d9a6 PP |
158 | extern const char *bt_component_class_get_help( |
159 | struct bt_component_class *component_class); | |
160 | ||
a67681c1 | 161 | extern struct bt_value *bt_component_class_query( |
efa96d5d | 162 | struct bt_component_class *component_class, |
a67681c1 | 163 | const char *object, struct bt_value *params); |
efa96d5d | 164 | |
38b48196 JG |
165 | /** |
166 | * Get a component class' type. | |
167 | * | |
168 | * @param component_class Component class of which to get the type | |
169 | * @returns One of #bt_component_type | |
170 | */ | |
d3e4dcd8 | 171 | extern enum bt_component_class_type bt_component_class_get_type( |
fc11e32c JG |
172 | struct bt_component_class *component_class); |
173 | ||
2154eb7d | 174 | static inline |
c55a9f58 | 175 | bt_bool bt_component_class_is_source(struct bt_component_class *component_class) |
2154eb7d PP |
176 | { |
177 | return bt_component_class_get_type(component_class) == | |
178 | BT_COMPONENT_CLASS_TYPE_SOURCE; | |
179 | } | |
180 | ||
181 | static inline | |
c55a9f58 | 182 | bt_bool bt_component_class_is_filter(struct bt_component_class *component_class) |
2154eb7d PP |
183 | { |
184 | return bt_component_class_get_type(component_class) == | |
185 | BT_COMPONENT_CLASS_TYPE_FILTER; | |
186 | } | |
187 | ||
188 | static inline | |
c55a9f58 | 189 | bt_bool bt_component_class_is_sink(struct bt_component_class *component_class) |
2154eb7d PP |
190 | { |
191 | return bt_component_class_get_type(component_class) == | |
192 | BT_COMPONENT_CLASS_TYPE_SINK; | |
193 | } | |
194 | ||
d3e4dcd8 PP |
195 | #ifdef __cplusplus |
196 | } | |
197 | #endif | |
198 | ||
1ca80abd | 199 | #endif /* BABELTRACE_GRAPH_COMPONENT_CLASS_H */ |