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4212232c PP |
1 | /* |
2 | * The MIT License (MIT) | |
3 | * | |
4 | * Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com> | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | static | |
26 | void graph_listener_removed(void *py_callable) | |
27 | { | |
28 | BT_ASSERT(py_callable); | |
29 | Py_DECREF(py_callable); | |
30 | } | |
31 | ||
32 | static bt_graph_listener_func_status port_added_listener( | |
33 | const void *component, | |
34 | swig_type_info *component_swig_type, | |
35 | bt_component_class_type component_class_type, | |
36 | const void *port, | |
37 | swig_type_info *port_swig_type, | |
38 | bt_port_type port_type, | |
39 | void *py_callable) | |
40 | { | |
41 | PyObject *py_component_ptr = NULL; | |
42 | PyObject *py_port_ptr = NULL; | |
43 | PyObject *py_res = NULL; | |
44 | bt_graph_listener_func_status status; | |
45 | ||
46 | py_component_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(component), component_swig_type, 0); | |
47 | if (!py_component_ptr) { | |
48 | BT_LOGF_STR("Failed to create component SWIG pointer object."); | |
49 | status = __BT_FUNC_STATUS_MEMORY_ERROR; | |
50 | goto end; | |
51 | } | |
52 | ||
53 | py_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(port), port_swig_type, 0); | |
54 | if (!py_port_ptr) { | |
55 | BT_LOGF_STR("Failed to create port SWIG pointer object."); | |
56 | status = __BT_FUNC_STATUS_MEMORY_ERROR; | |
57 | goto end; | |
58 | } | |
59 | ||
60 | py_res = PyObject_CallFunction(py_callable, "(OiOi)", | |
61 | py_component_ptr, component_class_type, py_port_ptr, port_type); | |
62 | if (!py_res) { | |
981f33dd | 63 | loge_exception_append_cause_clear( |
84e438af | 64 | "Graph's port added listener (Python)", |
4212232c | 65 | BT_LOG_OUTPUT_LEVEL); |
4212232c PP |
66 | status = __BT_FUNC_STATUS_ERROR; |
67 | goto end; | |
68 | } | |
69 | ||
70 | BT_ASSERT(py_res == Py_None); | |
71 | status = __BT_FUNC_STATUS_OK; | |
72 | ||
73 | end: | |
74 | Py_XDECREF(py_res); | |
75 | Py_XDECREF(py_port_ptr); | |
76 | Py_XDECREF(py_component_ptr); | |
77 | return status; | |
78 | } | |
79 | ||
80 | static | |
81 | bt_graph_listener_func_status | |
82 | source_component_output_port_added_listener(const bt_component_source *component_source, | |
83 | const bt_port_output *port_output, void *py_callable) | |
84 | { | |
85 | return port_added_listener( | |
86 | component_source, SWIGTYPE_p_bt_component_source, BT_COMPONENT_CLASS_TYPE_SOURCE, | |
87 | port_output, SWIGTYPE_p_bt_port_output, BT_PORT_TYPE_OUTPUT, py_callable); | |
88 | } | |
89 | ||
90 | static | |
91 | bt_graph_listener_func_status | |
92 | filter_component_input_port_added_listener(const bt_component_filter *component_filter, | |
93 | const bt_port_input *port_input, void *py_callable) | |
94 | { | |
95 | return port_added_listener( | |
96 | component_filter, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER, | |
97 | port_input, SWIGTYPE_p_bt_port_input, BT_PORT_TYPE_INPUT, py_callable); | |
98 | } | |
99 | ||
100 | static | |
101 | bt_graph_listener_func_status | |
102 | filter_component_output_port_added_listener(const bt_component_filter *component_filter, | |
103 | const bt_port_output *port_output, void *py_callable) | |
104 | { | |
105 | return port_added_listener( | |
106 | component_filter, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER, | |
107 | port_output, SWIGTYPE_p_bt_port_output, BT_PORT_TYPE_OUTPUT, py_callable); | |
108 | } | |
109 | ||
110 | static | |
111 | bt_graph_listener_func_status | |
112 | sink_component_input_port_added_listener(const bt_component_sink *component_sink, | |
113 | const bt_port_input *port_input, void *py_callable) | |
114 | { | |
115 | return port_added_listener( | |
116 | component_sink, SWIGTYPE_p_bt_component_sink, BT_COMPONENT_CLASS_TYPE_SINK, | |
117 | port_input, SWIGTYPE_p_bt_port_input, BT_PORT_TYPE_INPUT, py_callable); | |
118 | } | |
119 | ||
120 | static | |
121 | PyObject *bt_bt2_graph_add_port_added_listener(struct bt_graph *graph, | |
122 | PyObject *py_callable) | |
123 | { | |
124 | PyObject *py_listener_ids = NULL; | |
125 | PyObject *py_listener_id = NULL; | |
126 | bt_listener_id listener_id; | |
127 | bt_graph_add_listener_status status; | |
128 | const char * const module_name = | |
129 | "graph_add_port_added_listener() (Python)"; | |
130 | ||
131 | BT_ASSERT(graph); | |
132 | BT_ASSERT(py_callable); | |
133 | ||
134 | /* | |
135 | * Behind the scene, we will be registering 4 different listeners and | |
136 | * return all of their ids. | |
137 | */ | |
138 | py_listener_ids = PyTuple_New(4); | |
139 | if (!py_listener_ids) { | |
140 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name, | |
141 | "Failed to allocate one PyTuple."); | |
142 | goto error; | |
143 | } | |
144 | ||
145 | /* source output port */ | |
146 | status = bt_graph_add_source_component_output_port_added_listener( | |
147 | graph, source_component_output_port_added_listener, | |
148 | graph_listener_removed, py_callable, &listener_id); | |
149 | if (status != __BT_FUNC_STATUS_OK) { | |
150 | /* | |
151 | * bt_graph_add_source_component_output_port_added_listener has | |
152 | * already logged/appended an error cause. | |
153 | */ | |
154 | goto error; | |
155 | } | |
156 | ||
157 | py_listener_id = PyLong_FromUnsignedLongLong(listener_id); | |
158 | if (!py_listener_id) { | |
159 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name, | |
160 | "Failed to allocate one PyLong."); | |
161 | goto error; | |
162 | } | |
163 | ||
164 | PyTuple_SET_ITEM(py_listener_ids, 0, py_listener_id); | |
165 | py_listener_id = NULL; | |
166 | ||
167 | /* filter input port */ | |
168 | status = bt_graph_add_filter_component_input_port_added_listener( | |
169 | graph, filter_component_input_port_added_listener, | |
170 | graph_listener_removed, py_callable, &listener_id); | |
171 | if (status != __BT_FUNC_STATUS_OK) { | |
172 | /* | |
173 | * bt_graph_add_filter_component_input_port_added_listener has | |
174 | * already logged/appended an error cause. | |
175 | */ | |
176 | goto error; | |
177 | } | |
178 | ||
179 | py_listener_id = PyLong_FromUnsignedLongLong(listener_id); | |
180 | if (!py_listener_id) { | |
181 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name, | |
182 | "Failed to allocate one PyLong."); | |
183 | goto error; | |
184 | } | |
185 | ||
186 | PyTuple_SET_ITEM(py_listener_ids, 1, py_listener_id); | |
187 | py_listener_id = NULL; | |
188 | ||
189 | /* filter output port */ | |
190 | status = bt_graph_add_filter_component_output_port_added_listener( | |
191 | graph, filter_component_output_port_added_listener, | |
192 | graph_listener_removed, py_callable, &listener_id); | |
193 | if (status != __BT_FUNC_STATUS_OK) { | |
194 | /* | |
195 | * bt_graph_add_filter_component_output_port_added_listener has | |
196 | * already logged/appended an error cause. | |
197 | */ | |
198 | goto error; | |
199 | } | |
200 | ||
201 | py_listener_id = PyLong_FromUnsignedLongLong(listener_id); | |
202 | if (!py_listener_id) { | |
203 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name, | |
204 | "Failed to allocate one PyLong."); | |
205 | goto error; | |
206 | } | |
207 | ||
208 | PyTuple_SET_ITEM(py_listener_ids, 2, py_listener_id); | |
209 | py_listener_id = NULL; | |
210 | ||
211 | /* sink input port */ | |
212 | status = bt_graph_add_sink_component_input_port_added_listener( | |
213 | graph, sink_component_input_port_added_listener, | |
214 | graph_listener_removed, py_callable, &listener_id); | |
215 | if (status != __BT_FUNC_STATUS_OK) { | |
216 | /* | |
217 | * bt_graph_add_sink_component_input_port_added_listener has | |
218 | * already logged/appended an error cause. | |
219 | */ | |
220 | goto error; | |
221 | } | |
222 | ||
223 | py_listener_id = PyLong_FromUnsignedLongLong(listener_id); | |
224 | if (!py_listener_id) { | |
225 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name, | |
226 | "Failed to allocate one PyLong."); | |
227 | goto error; | |
228 | } | |
229 | ||
4212232c PP |
230 | PyTuple_SET_ITEM(py_listener_ids, 3, py_listener_id); |
231 | py_listener_id = NULL; | |
232 | ||
233 | Py_INCREF(py_callable); | |
234 | Py_INCREF(py_callable); | |
235 | Py_INCREF(py_callable); | |
236 | Py_INCREF(py_callable); | |
237 | ||
238 | goto end; | |
239 | ||
240 | error: | |
241 | Py_XDECREF(py_listener_ids); | |
242 | py_listener_ids = Py_None; | |
243 | Py_INCREF(py_listener_ids); | |
244 | ||
245 | end: | |
4212232c PP |
246 | Py_XDECREF(py_listener_id); |
247 | return py_listener_ids; | |
248 | } | |
249 | ||
66964f3f PP |
250 | static |
251 | bt_graph_add_component_status | |
252 | bt_bt2_graph_add_source_component( | |
253 | bt_graph *graph, | |
254 | const bt_component_class_source *component_class, | |
255 | const char *name, const bt_value *params, | |
256 | PyObject *obj, bt_logging_level log_level, | |
257 | const bt_component_source **component) | |
258 | { | |
21a9f056 | 259 | return bt_graph_add_source_component_with_initialize_method_data(graph, |
66964f3f PP |
260 | component_class, name, params, obj == Py_None ? NULL : obj, |
261 | log_level, component); | |
262 | } | |
263 | ||
264 | static | |
265 | bt_graph_add_component_status | |
266 | bt_bt2_graph_add_filter_component( | |
267 | bt_graph *graph, | |
268 | const bt_component_class_filter *component_class, | |
269 | const char *name, const bt_value *params, | |
270 | PyObject *obj, bt_logging_level log_level, | |
271 | const bt_component_filter **component) | |
272 | { | |
21a9f056 | 273 | return bt_graph_add_filter_component_with_initialize_method_data(graph, |
66964f3f PP |
274 | component_class, name, params, obj == Py_None ? NULL : obj, |
275 | log_level, component); | |
276 | } | |
277 | ||
278 | static | |
279 | bt_graph_add_component_status | |
280 | bt_bt2_graph_add_sink_component( | |
281 | bt_graph *graph, | |
282 | const bt_component_class_sink *component_class, | |
283 | const char *name, const bt_value *params, | |
284 | PyObject *obj, bt_logging_level log_level, | |
285 | const bt_component_sink **component) | |
286 | { | |
21a9f056 | 287 | return bt_graph_add_sink_component_with_initialize_method_data(graph, |
66964f3f PP |
288 | component_class, name, params, obj == Py_None ? NULL : obj, |
289 | log_level, component); | |
290 | } |