]>
Commit | Line | Data |
---|---|---|
d0a0ed03 | 1 | /* |
50bd5d25 | 2 | * This file is part of the libsigrokdecode project. |
d0a0ed03 BV |
3 | * |
4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
36784362 | 20 | #include <config.h> |
f6c7eade MC |
21 | #include "libsigrokdecode-internal.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */ |
22 | #include "libsigrokdecode.h" | |
dbeaab27 | 23 | #include <inttypes.h> |
d0a0ed03 | 24 | |
a4e9ca6f UH |
25 | /** @cond PRIVATE */ |
26 | extern SRD_PRIV GSList *sessions; | |
27 | /** @endcond */ | |
28 | ||
17475b09 UH |
29 | typedef struct { |
30 | PyObject_HEAD | |
31 | } srd_Decoder; | |
32 | ||
7969d803 | 33 | /* This is only used for nicer srd_dbg() output. */ |
201a85a8 DE |
34 | static const char *output_type_name(unsigned int idx) |
35 | { | |
36 | static const char names[][16] = { | |
37 | "OUTPUT_ANN", | |
38 | "OUTPUT_PYTHON", | |
39 | "OUTPUT_BINARY", | |
40 | "OUTPUT_META", | |
41 | "(invalid)" | |
42 | }; | |
7969d803 | 43 | |
201a85a8 DE |
44 | return names[MIN(idx, G_N_ELEMENTS(names) - 1)]; |
45 | } | |
58572aed | 46 | |
c1b2bbc1 GS |
47 | static void release_annotation(struct srd_proto_data_annotation *pda) |
48 | { | |
49 | if (!pda) | |
50 | return; | |
51 | if (pda->ann_text) | |
52 | g_strfreev(pda->ann_text); | |
c1b2bbc1 GS |
53 | } |
54 | ||
4f75f1c1 | 55 | static int convert_annotation(struct srd_decoder_inst *di, PyObject *obj, |
0b922460 | 56 | struct srd_proto_data *pdata) |
d0a0ed03 BV |
57 | { |
58 | PyObject *py_tmp; | |
59 | struct srd_pd_output *pdo; | |
0b922460 | 60 | struct srd_proto_data_annotation *pda; |
280d554c | 61 | int ann_class; |
0b922460 | 62 | char **ann_text; |
514b2edc UH |
63 | PyGILState_STATE gstate; |
64 | ||
65 | gstate = PyGILState_Ensure(); | |
d0a0ed03 | 66 | |
280d554c | 67 | /* Should be a list of [annotation class, [string, ...]]. */ |
0679f5bf | 68 | if (!PyList_Check(obj)) { |
201a85a8 | 69 | srd_err("Protocol decoder %s submitted an annotation that" |
0679f5bf | 70 | " is not a list", di->decoder->name); |
514b2edc | 71 | goto err; |
d0a0ed03 BV |
72 | } |
73 | ||
361fdcaa | 74 | /* Should have 2 elements. */ |
d0a0ed03 | 75 | if (PyList_Size(obj) != 2) { |
c9bfccc6 | 76 | srd_err("Protocol decoder %s submitted annotation list with " |
4916b173 | 77 | "%zd elements instead of 2", di->decoder->name, |
c9bfccc6 | 78 | PyList_Size(obj)); |
514b2edc | 79 | goto err; |
d0a0ed03 BV |
80 | } |
81 | ||
c9bfccc6 UH |
82 | /* |
83 | * The first element should be an integer matching a previously | |
280d554c | 84 | * registered annotation class. |
c9bfccc6 | 85 | */ |
d0a0ed03 BV |
86 | py_tmp = PyList_GetItem(obj, 0); |
87 | if (!PyLong_Check(py_tmp)) { | |
c9bfccc6 UH |
88 | srd_err("Protocol decoder %s submitted annotation list, but " |
89 | "first element was not an integer.", di->decoder->name); | |
514b2edc | 90 | goto err; |
d0a0ed03 | 91 | } |
280d554c UH |
92 | ann_class = PyLong_AsLong(py_tmp); |
93 | if (!(pdo = g_slist_nth_data(di->decoder->annotations, ann_class))) { | |
d906d3f9 | 94 | srd_err("Protocol decoder %s submitted data to unregistered " |
280d554c | 95 | "annotation class %d.", di->decoder->name, ann_class); |
514b2edc | 96 | goto err; |
d0a0ed03 | 97 | } |
d0a0ed03 | 98 | |
361fdcaa | 99 | /* Second element must be a list. */ |
d0a0ed03 BV |
100 | py_tmp = PyList_GetItem(obj, 1); |
101 | if (!PyList_Check(py_tmp)) { | |
d906d3f9 | 102 | srd_err("Protocol decoder %s submitted annotation list, but " |
c9bfccc6 | 103 | "second element was not a list.", di->decoder->name); |
514b2edc | 104 | goto err; |
d0a0ed03 | 105 | } |
62a2b15c | 106 | if (py_strseq_to_char(py_tmp, &ann_text) != SRD_OK) { |
d906d3f9 | 107 | srd_err("Protocol decoder %s submitted annotation list, but " |
c9bfccc6 | 108 | "second element was malformed.", di->decoder->name); |
514b2edc | 109 | goto err; |
d0a0ed03 BV |
110 | } |
111 | ||
ee63c5dd | 112 | pda = pdata->data; |
280d554c | 113 | pda->ann_class = ann_class; |
0b922460 | 114 | pda->ann_text = ann_text; |
0b922460 | 115 | |
514b2edc UH |
116 | PyGILState_Release(gstate); |
117 | ||
d0a0ed03 | 118 | return SRD_OK; |
514b2edc UH |
119 | |
120 | err: | |
121 | PyGILState_Release(gstate); | |
122 | ||
123 | return SRD_ERR_PYTHON; | |
d0a0ed03 BV |
124 | } |
125 | ||
c1b2bbc1 GS |
126 | static void release_binary(struct srd_proto_data_binary *pdb) |
127 | { | |
128 | if (!pdb) | |
129 | return; | |
8390f85a | 130 | g_free((void *)pdb->data); |
c1b2bbc1 GS |
131 | g_free(pdb); |
132 | } | |
133 | ||
d75d8a7c BV |
134 | static int convert_binary(struct srd_decoder_inst *di, PyObject *obj, |
135 | struct srd_proto_data *pdata) | |
136 | { | |
137 | struct srd_proto_data_binary *pdb; | |
138 | PyObject *py_tmp; | |
139 | Py_ssize_t size; | |
140 | int bin_class; | |
141 | char *class_name, *buf; | |
514b2edc UH |
142 | PyGILState_STATE gstate; |
143 | ||
144 | gstate = PyGILState_Ensure(); | |
d75d8a7c | 145 | |
2824e811 UH |
146 | /* Should be a list of [binary class, bytes]. */ |
147 | if (!PyList_Check(obj)) { | |
148 | srd_err("Protocol decoder %s submitted non-list for SRD_OUTPUT_BINARY.", | |
201a85a8 | 149 | di->decoder->name); |
514b2edc | 150 | goto err; |
d75d8a7c BV |
151 | } |
152 | ||
153 | /* Should have 2 elements. */ | |
2824e811 UH |
154 | if (PyList_Size(obj) != 2) { |
155 | srd_err("Protocol decoder %s submitted SRD_OUTPUT_BINARY list " | |
4916b173 | 156 | "with %zd elements instead of 2", di->decoder->name, |
d75d8a7c | 157 | PyList_Size(obj)); |
514b2edc | 158 | goto err; |
d75d8a7c BV |
159 | } |
160 | ||
161 | /* The first element should be an integer. */ | |
2824e811 | 162 | py_tmp = PyList_GetItem(obj, 0); |
d75d8a7c | 163 | if (!PyLong_Check(py_tmp)) { |
2824e811 | 164 | srd_err("Protocol decoder %s submitted SRD_OUTPUT_BINARY list, " |
d75d8a7c | 165 | "but first element was not an integer.", di->decoder->name); |
514b2edc | 166 | goto err; |
d75d8a7c BV |
167 | } |
168 | bin_class = PyLong_AsLong(py_tmp); | |
169 | if (!(class_name = g_slist_nth_data(di->decoder->binary, bin_class))) { | |
170 | srd_err("Protocol decoder %s submitted SRD_OUTPUT_BINARY with " | |
171 | "unregistered binary class %d.", di->decoder->name, bin_class); | |
514b2edc | 172 | goto err; |
d75d8a7c BV |
173 | } |
174 | ||
175 | /* Second element should be bytes. */ | |
2824e811 | 176 | py_tmp = PyList_GetItem(obj, 1); |
d75d8a7c | 177 | if (!PyBytes_Check(py_tmp)) { |
2824e811 | 178 | srd_err("Protocol decoder %s submitted SRD_OUTPUT_BINARY list, " |
d75d8a7c | 179 | "but second element was not bytes.", di->decoder->name); |
514b2edc | 180 | goto err; |
d75d8a7c BV |
181 | } |
182 | ||
183 | /* Consider an empty set of bytes a bug. */ | |
184 | if (PyBytes_Size(py_tmp) == 0) { | |
185 | srd_err("Protocol decoder %s submitted SRD_OUTPUT_BINARY " | |
186 | "with empty data set.", di->decoder->name); | |
514b2edc | 187 | goto err; |
d75d8a7c BV |
188 | } |
189 | ||
d75d8a7c | 190 | if (PyBytes_AsStringAndSize(py_tmp, &buf, &size) == -1) |
514b2edc UH |
191 | goto err; |
192 | ||
193 | PyGILState_Release(gstate); | |
194 | ||
8ad9a3e4 | 195 | pdb = g_malloc(sizeof(struct srd_proto_data_binary)); |
d75d8a7c BV |
196 | pdb->bin_class = bin_class; |
197 | pdb->size = size; | |
48518538 UH |
198 | if (!(pdb->data = g_try_malloc(pdb->size))) { |
199 | g_free(pdb); | |
d75d8a7c | 200 | return SRD_ERR_MALLOC; |
48518538 | 201 | } |
d75d8a7c BV |
202 | memcpy((void *)pdb->data, (const void *)buf, pdb->size); |
203 | pdata->data = pdb; | |
204 | ||
205 | return SRD_OK; | |
514b2edc UH |
206 | |
207 | err: | |
208 | PyGILState_Release(gstate); | |
209 | ||
210 | return SRD_ERR_PYTHON; | |
d75d8a7c BV |
211 | } |
212 | ||
29adc171 | 213 | static inline struct srd_decoder_inst *srd_sess_inst_find_by_obj( |
a4e9ca6f UH |
214 | struct srd_session *sess, const GSList *stack, const PyObject *obj) |
215 | { | |
216 | const GSList *l; | |
217 | struct srd_decoder_inst *tmp, *di; | |
218 | ||
219 | if (!sess) | |
220 | return NULL; | |
221 | ||
222 | di = NULL; | |
223 | for (l = stack ? stack : sess->di_list; di == NULL && l != NULL; l = l->next) { | |
224 | tmp = l->data; | |
225 | if (tmp->py_inst == obj) | |
226 | di = tmp; | |
227 | else if (tmp->next_di) | |
228 | di = srd_sess_inst_find_by_obj(sess, tmp->next_di, obj); | |
229 | } | |
230 | ||
231 | return di; | |
232 | } | |
233 | ||
234 | /** | |
235 | * Find a decoder instance by its Python object. | |
236 | * | |
237 | * I.e. find that instance's instantiation of the sigrokdecode.Decoder class. | |
238 | * This will recurse to find the instance anywhere in the stack tree of all | |
239 | * sessions. | |
240 | * | |
241 | * @param stack Pointer to a GSList of struct srd_decoder_inst, indicating the | |
242 | * stack to search. To start searching at the bottom level of | |
243 | * decoder instances, pass NULL. | |
244 | * @param obj The Python class instantiation. | |
245 | * | |
246 | * @return Pointer to struct srd_decoder_inst, or NULL if not found. | |
247 | * | |
248 | * @since 0.1.0 | |
249 | */ | |
29adc171 | 250 | static inline struct srd_decoder_inst *srd_inst_find_by_obj( |
a4e9ca6f UH |
251 | const GSList *stack, const PyObject *obj) |
252 | { | |
253 | struct srd_decoder_inst *di; | |
254 | struct srd_session *sess; | |
255 | GSList *l; | |
256 | ||
996b17db UH |
257 | /* Performance shortcut: Handle the most common case first. */ |
258 | sess = sessions->data; | |
259 | di = sess->di_list->data; | |
260 | if (di->py_inst == obj) | |
261 | return di; | |
262 | ||
a4e9ca6f UH |
263 | di = NULL; |
264 | for (l = sessions; di == NULL && l != NULL; l = l->next) { | |
265 | sess = l->data; | |
266 | di = srd_sess_inst_find_by_obj(sess, stack, obj); | |
267 | } | |
268 | ||
269 | return di; | |
270 | } | |
271 | ||
7ee0c40b BV |
272 | static int convert_meta(struct srd_proto_data *pdata, PyObject *obj) |
273 | { | |
274 | long long intvalue; | |
275 | double dvalue; | |
514b2edc UH |
276 | PyGILState_STATE gstate; |
277 | ||
278 | gstate = PyGILState_Ensure(); | |
7ee0c40b | 279 | |
ec31b982 | 280 | if (g_variant_type_equal(pdata->pdo->meta_type, G_VARIANT_TYPE_INT64)) { |
7ee0c40b BV |
281 | if (!PyLong_Check(obj)) { |
282 | PyErr_Format(PyExc_TypeError, "This output was registered " | |
201a85a8 | 283 | "as 'int', but something else was passed."); |
514b2edc | 284 | goto err; |
7ee0c40b BV |
285 | } |
286 | intvalue = PyLong_AsLongLong(obj); | |
287 | if (PyErr_Occurred()) | |
514b2edc | 288 | goto err; |
7ee0c40b | 289 | pdata->data = g_variant_new_int64(intvalue); |
ec31b982 | 290 | } else if (g_variant_type_equal(pdata->pdo->meta_type, G_VARIANT_TYPE_DOUBLE)) { |
7ee0c40b BV |
291 | if (!PyFloat_Check(obj)) { |
292 | PyErr_Format(PyExc_TypeError, "This output was registered " | |
201a85a8 | 293 | "as 'float', but something else was passed."); |
514b2edc | 294 | goto err; |
7ee0c40b BV |
295 | } |
296 | dvalue = PyFloat_AsDouble(obj); | |
297 | if (PyErr_Occurred()) | |
514b2edc | 298 | goto err; |
7ee0c40b BV |
299 | pdata->data = g_variant_new_double(dvalue); |
300 | } | |
301 | ||
514b2edc UH |
302 | PyGILState_Release(gstate); |
303 | ||
7ee0c40b | 304 | return SRD_OK; |
514b2edc UH |
305 | |
306 | err: | |
307 | PyGILState_Release(gstate); | |
308 | ||
309 | return SRD_ERR_PYTHON; | |
7ee0c40b BV |
310 | } |
311 | ||
287e2788 UH |
312 | static void release_meta(GVariant *gvar) |
313 | { | |
314 | if (!gvar) | |
315 | return; | |
316 | g_variant_unref(gvar); | |
317 | } | |
318 | ||
d0a0ed03 BV |
319 | static PyObject *Decoder_put(PyObject *self, PyObject *args) |
320 | { | |
321 | GSList *l; | |
4f75f1c1 | 322 | PyObject *py_data, *py_res; |
a8b72b05 | 323 | struct srd_decoder_inst *di, *next_di; |
d0a0ed03 | 324 | struct srd_pd_output *pdo; |
8a9f60b1 | 325 | struct srd_proto_data pdata; |
ee63c5dd | 326 | struct srd_proto_data_annotation pda; |
d0a0ed03 BV |
327 | uint64_t start_sample, end_sample; |
328 | int output_id; | |
2994587f | 329 | struct srd_pd_callback *cb; |
514b2edc UH |
330 | PyGILState_STATE gstate; |
331 | ||
287e2788 UH |
332 | py_data = NULL; |
333 | ||
514b2edc | 334 | gstate = PyGILState_Ensure(); |
d0a0ed03 | 335 | |
a8b72b05 | 336 | if (!(di = srd_inst_find_by_obj(NULL, self))) { |
58572aed | 337 | /* Shouldn't happen. */ |
7a1712c4 | 338 | srd_dbg("put(): self instance not found."); |
514b2edc | 339 | goto err; |
58572aed | 340 | } |
d0a0ed03 | 341 | |
c9bfccc6 | 342 | if (!PyArg_ParseTuple(args, "KKiO", &start_sample, &end_sample, |
3d14e7c9 | 343 | &output_id, &py_data)) { |
c9bfccc6 UH |
344 | /* |
345 | * This throws an exception, but by returning NULL here we let | |
346 | * Python raise it. This results in a much better trace in | |
347 | * controller.c on the decode() method call. | |
348 | */ | |
514b2edc | 349 | goto err; |
c9bfccc6 | 350 | } |
d0a0ed03 BV |
351 | |
352 | if (!(l = g_slist_nth(di->pd_output, output_id))) { | |
d906d3f9 | 353 | srd_err("Protocol decoder %s submitted invalid output ID %d.", |
c9bfccc6 | 354 | di->decoder->name, output_id); |
514b2edc | 355 | goto err; |
d0a0ed03 BV |
356 | } |
357 | pdo = l->data; | |
358 | ||
1c2b0d0b | 359 | srd_spew("Instance %s put %" PRIu64 "-%" PRIu64 " %s on oid %d.", |
a8b72b05 | 360 | di->inst_id, start_sample, end_sample, |
201a85a8 | 361 | output_type_name(pdo->output_type), output_id); |
58572aed | 362 | |
8a9f60b1 UH |
363 | pdata.start_sample = start_sample; |
364 | pdata.end_sample = end_sample; | |
365 | pdata.pdo = pdo; | |
366 | pdata.data = NULL; | |
d0a0ed03 BV |
367 | |
368 | switch (pdo->output_type) { | |
369 | case SRD_OUTPUT_ANN: | |
370 | /* Annotations are only fed to callbacks. */ | |
32cfb920 | 371 | if ((cb = srd_pd_output_callback_find(di->sess, pdo->output_type))) { |
ee63c5dd | 372 | pdata.data = &pda; |
d75d8a7c | 373 | /* Convert from PyDict to srd_proto_data_annotation. */ |
8a9f60b1 | 374 | if (convert_annotation(di, py_data, &pdata) != SRD_OK) { |
d0a0ed03 BV |
375 | /* An error was already logged. */ |
376 | break; | |
377 | } | |
514b2edc | 378 | Py_BEGIN_ALLOW_THREADS |
8a9f60b1 | 379 | cb->cb(&pdata, cb->cb_data); |
514b2edc | 380 | Py_END_ALLOW_THREADS |
c1b2bbc1 | 381 | release_annotation(pdata.data); |
d0a0ed03 BV |
382 | } |
383 | break; | |
f2a5df42 | 384 | case SRD_OUTPUT_PYTHON: |
d0a0ed03 BV |
385 | for (l = di->next_di; l; l = l->next) { |
386 | next_di = l->data; | |
4916b173 | 387 | srd_spew("Sending %" PRIu64 "-%" PRIu64 " to instance %s", |
3d14e7c9 | 388 | start_sample, end_sample, next_di->inst_id); |
c9bfccc6 | 389 | if (!(py_res = PyObject_CallMethod( |
3d14e7c9 BV |
390 | next_di->py_inst, "decode", "KKO", start_sample, |
391 | end_sample, py_data))) { | |
201a85a8 | 392 | srd_exception_catch("Calling %s decode() failed", |
3d14e7c9 | 393 | next_di->inst_id); |
d0a0ed03 BV |
394 | } |
395 | Py_XDECREF(py_res); | |
396 | } | |
3d14e7c9 | 397 | if ((cb = srd_pd_output_callback_find(di->sess, pdo->output_type))) { |
7969d803 UH |
398 | /* |
399 | * Frontends aren't really supposed to get Python | |
400 | * callbacks, but it's useful for testing. | |
401 | */ | |
8a9f60b1 UH |
402 | pdata.data = py_data; |
403 | cb->cb(&pdata, cb->cb_data); | |
3d14e7c9 | 404 | } |
d0a0ed03 BV |
405 | break; |
406 | case SRD_OUTPUT_BINARY: | |
d75d8a7c BV |
407 | if ((cb = srd_pd_output_callback_find(di->sess, pdo->output_type))) { |
408 | /* Convert from PyDict to srd_proto_data_binary. */ | |
8a9f60b1 | 409 | if (convert_binary(di, py_data, &pdata) != SRD_OK) { |
d75d8a7c BV |
410 | /* An error was already logged. */ |
411 | break; | |
412 | } | |
514b2edc | 413 | Py_BEGIN_ALLOW_THREADS |
8a9f60b1 | 414 | cb->cb(&pdata, cb->cb_data); |
514b2edc | 415 | Py_END_ALLOW_THREADS |
c1b2bbc1 | 416 | release_binary(pdata.data); |
d75d8a7c | 417 | } |
d0a0ed03 | 418 | break; |
7ee0c40b BV |
419 | case SRD_OUTPUT_META: |
420 | if ((cb = srd_pd_output_callback_find(di->sess, pdo->output_type))) { | |
421 | /* Annotations need converting from PyObject. */ | |
8a9f60b1 | 422 | if (convert_meta(&pdata, py_data) != SRD_OK) { |
7ee0c40b BV |
423 | /* An exception was already set up. */ |
424 | break; | |
425 | } | |
514b2edc | 426 | Py_BEGIN_ALLOW_THREADS |
8a9f60b1 | 427 | cb->cb(&pdata, cb->cb_data); |
514b2edc | 428 | Py_END_ALLOW_THREADS |
287e2788 | 429 | release_meta(pdata.data); |
7ee0c40b BV |
430 | } |
431 | break; | |
d0a0ed03 | 432 | default: |
d906d3f9 | 433 | srd_err("Protocol decoder %s submitted invalid output type %d.", |
c9bfccc6 | 434 | di->decoder->name, pdo->output_type); |
d0a0ed03 BV |
435 | break; |
436 | } | |
437 | ||
514b2edc UH |
438 | PyGILState_Release(gstate); |
439 | ||
d0a0ed03 | 440 | Py_RETURN_NONE; |
514b2edc UH |
441 | |
442 | err: | |
443 | PyGILState_Release(gstate); | |
444 | ||
445 | return NULL; | |
d0a0ed03 BV |
446 | } |
447 | ||
7ee0c40b BV |
448 | static PyObject *Decoder_register(PyObject *self, PyObject *args, |
449 | PyObject *kwargs) | |
d0a0ed03 | 450 | { |
a8b72b05 | 451 | struct srd_decoder_inst *di; |
7ee0c40b BV |
452 | struct srd_pd_output *pdo; |
453 | PyObject *py_new_output_id; | |
454 | PyTypeObject *meta_type_py; | |
455 | const GVariantType *meta_type_gv; | |
456 | int output_type; | |
457 | char *proto_id, *meta_name, *meta_descr; | |
7969d803 | 458 | char *keywords[] = { "output_type", "proto_id", "meta", NULL }; |
514b2edc | 459 | PyGILState_STATE gstate; |
7d82e3c1 GS |
460 | gboolean is_meta; |
461 | GSList *l; | |
462 | struct srd_pd_output *cmp; | |
514b2edc UH |
463 | |
464 | gstate = PyGILState_Ensure(); | |
7ee0c40b BV |
465 | |
466 | meta_type_py = NULL; | |
467 | meta_type_gv = NULL; | |
468 | meta_name = meta_descr = NULL; | |
d0a0ed03 | 469 | |
a8b72b05 | 470 | if (!(di = srd_inst_find_by_obj(NULL, self))) { |
d0a0ed03 | 471 | PyErr_SetString(PyExc_Exception, "decoder instance not found"); |
514b2edc | 472 | goto err; |
d0a0ed03 BV |
473 | } |
474 | ||
7969d803 | 475 | /* Default to instance ID, which defaults to class ID. */ |
7ee0c40b BV |
476 | proto_id = di->inst_id; |
477 | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|s(Oss)", keywords, | |
478 | &output_type, &proto_id, | |
479 | &meta_type_py, &meta_name, &meta_descr)) { | |
511e2123 | 480 | /* Let Python raise this exception. */ |
514b2edc | 481 | goto err; |
d0a0ed03 BV |
482 | } |
483 | ||
7ee0c40b | 484 | /* Check if the meta value's type is supported. */ |
7d82e3c1 GS |
485 | is_meta = output_type == SRD_OUTPUT_META; |
486 | if (is_meta) { | |
7ee0c40b BV |
487 | if (meta_type_py == &PyLong_Type) |
488 | meta_type_gv = G_VARIANT_TYPE_INT64; | |
489 | else if (meta_type_py == &PyFloat_Type) | |
490 | meta_type_gv = G_VARIANT_TYPE_DOUBLE; | |
491 | else { | |
201a85a8 | 492 | PyErr_Format(PyExc_TypeError, "Unsupported type."); |
514b2edc | 493 | goto err; |
7ee0c40b BV |
494 | } |
495 | } | |
496 | ||
7d82e3c1 GS |
497 | pdo = NULL; |
498 | for (l = di->pd_output; l; l = l->next) { | |
499 | cmp = l->data; | |
500 | if (cmp->output_type != output_type) | |
501 | continue; | |
502 | if (strcmp(cmp->proto_id, proto_id) != 0) | |
503 | continue; | |
504 | if (is_meta && cmp->meta_type != meta_type_gv) | |
505 | continue; | |
506 | if (is_meta && strcmp(cmp->meta_name, meta_name) != 0) | |
507 | continue; | |
508 | if (is_meta && strcmp(cmp->meta_descr, meta_descr) != 0) | |
509 | continue; | |
510 | pdo = cmp; | |
511 | break; | |
512 | } | |
513 | if (pdo) { | |
514 | py_new_output_id = Py_BuildValue("i", pdo->pdo_id); | |
515 | PyGILState_Release(gstate); | |
516 | return py_new_output_id; | |
517 | } | |
518 | ||
7ee0c40b BV |
519 | srd_dbg("Instance %s creating new output type %d for %s.", |
520 | di->inst_id, output_type, proto_id); | |
521 | ||
077fa8ac | 522 | pdo = g_malloc(sizeof(struct srd_pd_output)); |
7ee0c40b BV |
523 | |
524 | /* pdo_id is just a simple index, nothing is deleted from this list anyway. */ | |
525 | pdo->pdo_id = g_slist_length(di->pd_output); | |
526 | pdo->output_type = output_type; | |
527 | pdo->di = di; | |
528 | pdo->proto_id = g_strdup(proto_id); | |
529 | ||
530 | if (output_type == SRD_OUTPUT_META) { | |
531 | pdo->meta_type = meta_type_gv; | |
532 | pdo->meta_name = g_strdup(meta_name); | |
533 | pdo->meta_descr = g_strdup(meta_descr); | |
534 | } | |
535 | ||
536 | di->pd_output = g_slist_append(di->pd_output, pdo); | |
537 | py_new_output_id = Py_BuildValue("i", pdo->pdo_id); | |
538 | ||
514b2edc UH |
539 | PyGILState_Release(gstate); |
540 | ||
7ee0c40b | 541 | return py_new_output_id; |
514b2edc UH |
542 | |
543 | err: | |
544 | PyGILState_Release(gstate); | |
545 | ||
546 | return NULL; | |
7ee0c40b BV |
547 | } |
548 | ||
21dfd91d UH |
549 | static int get_term_type(const char *v) |
550 | { | |
551 | switch (v[0]) { | |
552 | case 'h': | |
553 | return SRD_TERM_HIGH; | |
554 | case 'l': | |
555 | return SRD_TERM_LOW; | |
556 | case 'r': | |
557 | return SRD_TERM_RISING_EDGE; | |
558 | case 'f': | |
559 | return SRD_TERM_FALLING_EDGE; | |
560 | case 'e': | |
561 | return SRD_TERM_EITHER_EDGE; | |
562 | case 'n': | |
563 | return SRD_TERM_NO_EDGE; | |
4e7ccaf9 UH |
564 | default: |
565 | return -1; | |
21dfd91d UH |
566 | } |
567 | ||
568 | return -1; | |
569 | } | |
570 | ||
571 | /** | |
572 | * Get the pin values at the current sample number. | |
573 | * | |
574 | * @param di The decoder instance to use. Must not be NULL. | |
575 | * The number of channels must be >= 1. | |
576 | * | |
577 | * @return A newly allocated PyTuple containing the pin values at the | |
578 | * current sample number. | |
579 | */ | |
580 | static PyObject *get_current_pinvalues(const struct srd_decoder_inst *di) | |
581 | { | |
582 | int i; | |
583 | uint8_t sample; | |
584 | const uint8_t *sample_pos; | |
585 | int byte_offset, bit_offset; | |
586 | PyObject *py_pinvalues; | |
514b2edc UH |
587 | PyGILState_STATE gstate; |
588 | ||
21dfd91d UH |
589 | if (!di) { |
590 | srd_err("Invalid decoder instance."); | |
591 | return NULL; | |
592 | } | |
593 | ||
73578d2e UH |
594 | gstate = PyGILState_Ensure(); |
595 | ||
21dfd91d UH |
596 | py_pinvalues = PyTuple_New(di->dec_num_channels); |
597 | ||
598 | for (i = 0; i < di->dec_num_channels; i++) { | |
599 | /* A channelmap value of -1 means "unused optional channel". */ | |
600 | if (di->dec_channelmap[i] == -1) { | |
601 | /* Value of unused channel is 0xff, instead of 0 or 1. */ | |
602 | PyTuple_SetItem(py_pinvalues, i, PyLong_FromLong(0xff)); | |
603 | } else { | |
4564e8e5 | 604 | sample_pos = di->inbuf + ((di->abs_cur_samplenum - di->abs_start_samplenum) * di->data_unitsize); |
21dfd91d UH |
605 | byte_offset = di->dec_channelmap[i] / 8; |
606 | bit_offset = di->dec_channelmap[i] % 8; | |
607 | sample = *(sample_pos + byte_offset) & (1 << bit_offset) ? 1 : 0; | |
608 | PyTuple_SetItem(py_pinvalues, i, PyLong_FromLong(sample)); | |
609 | } | |
610 | } | |
611 | ||
514b2edc UH |
612 | PyGILState_Release(gstate); |
613 | ||
21dfd91d UH |
614 | return py_pinvalues; |
615 | } | |
616 | ||
617 | /** | |
618 | * Create a list of terms in the specified condition. | |
619 | * | |
620 | * If there are no terms in the condition, 'term_list' will be NULL. | |
621 | * | |
622 | * @param py_dict A Python dict containing terms. Must not be NULL. | |
623 | * @param term_list Pointer to a GSList which will be set to the newly | |
624 | * created list of terms. Must not be NULL. | |
625 | * | |
626 | * @return SRD_OK upon success, a negative error code otherwise. | |
627 | */ | |
628 | static int create_term_list(PyObject *py_dict, GSList **term_list) | |
629 | { | |
630 | Py_ssize_t pos = 0; | |
631 | PyObject *py_key, *py_value; | |
632 | struct srd_term *term; | |
633 | uint64_t num_samples_to_skip; | |
634 | char *term_str; | |
514b2edc | 635 | PyGILState_STATE gstate; |
21dfd91d UH |
636 | |
637 | if (!py_dict || !term_list) | |
638 | return SRD_ERR_ARG; | |
639 | ||
640 | /* "Create" an empty GSList of terms. */ | |
641 | *term_list = NULL; | |
642 | ||
514b2edc UH |
643 | gstate = PyGILState_Ensure(); |
644 | ||
21dfd91d UH |
645 | /* Iterate over all items in the current dict. */ |
646 | while (PyDict_Next(py_dict, &pos, &py_key, &py_value)) { | |
647 | /* Check whether the current key is a string or a number. */ | |
648 | if (PyLong_Check(py_key)) { | |
649 | /* The key is a number. */ | |
650 | /* TODO: Check if the number is a valid channel. */ | |
651 | /* Get the value string. */ | |
652 | if ((py_pydictitem_as_str(py_dict, py_key, &term_str)) != SRD_OK) { | |
653 | srd_err("Failed to get the value."); | |
514b2edc | 654 | goto err; |
21dfd91d | 655 | } |
35c10c0e | 656 | term = g_malloc(sizeof(struct srd_term)); |
21dfd91d UH |
657 | term->type = get_term_type(term_str); |
658 | term->channel = PyLong_AsLong(py_key); | |
659 | g_free(term_str); | |
660 | } else if (PyUnicode_Check(py_key)) { | |
661 | /* The key is a string. */ | |
662 | /* TODO: Check if it's "skip". */ | |
663 | if ((py_pydictitem_as_long(py_dict, py_key, &num_samples_to_skip)) != SRD_OK) { | |
664 | srd_err("Failed to get number of samples to skip."); | |
514b2edc | 665 | goto err; |
21dfd91d | 666 | } |
35c10c0e | 667 | term = g_malloc(sizeof(struct srd_term)); |
21dfd91d UH |
668 | term->type = SRD_TERM_SKIP; |
669 | term->num_samples_to_skip = num_samples_to_skip; | |
670 | term->num_samples_already_skipped = 0; | |
671 | } else { | |
672 | srd_err("Term key is neither a string nor a number."); | |
514b2edc | 673 | goto err; |
21dfd91d UH |
674 | } |
675 | ||
676 | /* Add the term to the list of terms. */ | |
677 | *term_list = g_slist_append(*term_list, term); | |
678 | } | |
679 | ||
514b2edc UH |
680 | PyGILState_Release(gstate); |
681 | ||
21dfd91d | 682 | return SRD_OK; |
514b2edc UH |
683 | |
684 | err: | |
685 | PyGILState_Release(gstate); | |
686 | ||
687 | return SRD_ERR; | |
21dfd91d UH |
688 | } |
689 | ||
690 | /** | |
691 | * Replace the current condition list with the new one. | |
692 | * | |
693 | * @param self TODO. Must not be NULL. | |
694 | * @param args TODO. Must not be NULL. | |
695 | * | |
696 | * @retval SRD_OK The new condition list was set successfully. | |
697 | * @retval SRD_ERR There was an error setting the new condition list. | |
698 | * The contents of di->condition_list are undefined. | |
699 | * @retval 9999 TODO. | |
700 | */ | |
701 | static int set_new_condition_list(PyObject *self, PyObject *args) | |
702 | { | |
703 | struct srd_decoder_inst *di; | |
704 | GSList *term_list; | |
705 | PyObject *py_conditionlist, *py_conds, *py_dict; | |
706 | int i, num_conditions, ret; | |
514b2edc | 707 | PyGILState_STATE gstate; |
21dfd91d UH |
708 | |
709 | if (!self || !args) | |
710 | return SRD_ERR_ARG; | |
711 | ||
514b2edc UH |
712 | gstate = PyGILState_Ensure(); |
713 | ||
21dfd91d UH |
714 | /* Get the decoder instance. */ |
715 | if (!(di = srd_inst_find_by_obj(NULL, self))) { | |
716 | PyErr_SetString(PyExc_Exception, "decoder instance not found"); | |
514b2edc | 717 | goto err; |
21dfd91d UH |
718 | } |
719 | ||
04383ea8 GS |
720 | /* |
721 | * Return an error condition from .wait() when termination is | |
722 | * requested, such that decode() will terminate. | |
723 | */ | |
724 | if (di->want_wait_terminate) { | |
725 | srd_dbg("%s: %s: Skip (want_term).", di->inst_id, __func__); | |
514b2edc | 726 | goto err; |
04383ea8 GS |
727 | } |
728 | ||
6e19f325 GS |
729 | /* |
730 | * Parse the argument of self.wait() into 'py_conds', and check | |
731 | * the data type. The argument is optional, None is assumed in | |
732 | * its absence. None or an empty dict or an empty list mean that | |
733 | * there is no condition, and the next available sample shall | |
734 | * get returned to the caller. | |
735 | */ | |
736 | py_conds = Py_None; | |
737 | if (!PyArg_ParseTuple(args, "|O", &py_conds)) { | |
21dfd91d | 738 | /* Let Python raise this exception. */ |
514b2edc | 739 | goto err; |
21dfd91d | 740 | } |
6e19f325 GS |
741 | if (py_conds == Py_None) { |
742 | /* 'py_conds' is None. */ | |
514b2edc | 743 | goto ret_9999; |
6e19f325 | 744 | } else if (PyList_Check(py_conds)) { |
21dfd91d UH |
745 | /* 'py_conds' is a list. */ |
746 | py_conditionlist = py_conds; | |
747 | num_conditions = PyList_Size(py_conditionlist); | |
748 | if (num_conditions == 0) | |
514b2edc | 749 | goto ret_9999; /* The PD invoked self.wait([]). */ |
066fbafd | 750 | Py_IncRef(py_conditionlist); |
21dfd91d UH |
751 | } else if (PyDict_Check(py_conds)) { |
752 | /* 'py_conds' is a dict. */ | |
753 | if (PyDict_Size(py_conds) == 0) | |
514b2edc | 754 | goto ret_9999; /* The PD invoked self.wait({}). */ |
21dfd91d UH |
755 | /* Make a list and put the dict in there for convenience. */ |
756 | py_conditionlist = PyList_New(1); | |
01f15bdf | 757 | Py_IncRef(py_conds); |
21dfd91d UH |
758 | PyList_SetItem(py_conditionlist, 0, py_conds); |
759 | num_conditions = 1; | |
760 | } else { | |
761 | srd_err("Condition list is neither a list nor a dict."); | |
514b2edc | 762 | goto err; |
21dfd91d UH |
763 | } |
764 | ||
765 | /* Free the old condition list. */ | |
766 | condition_list_free(di); | |
767 | ||
768 | ret = SRD_OK; | |
769 | ||
770 | /* Iterate over the conditions, set di->condition_list accordingly. */ | |
771 | for (i = 0; i < num_conditions; i++) { | |
772 | /* Get a condition (dict) from the condition list. */ | |
773 | py_dict = PyList_GetItem(py_conditionlist, i); | |
774 | if (!PyDict_Check(py_dict)) { | |
775 | srd_err("Condition is not a dict."); | |
776 | ret = SRD_ERR; | |
777 | break; | |
778 | } | |
779 | ||
780 | /* Create the list of terms in this condition. */ | |
781 | if ((ret = create_term_list(py_dict, &term_list)) < 0) | |
782 | break; | |
783 | ||
784 | /* Add the new condition to the PD instance's condition list. */ | |
785 | di->condition_list = g_slist_append(di->condition_list, term_list); | |
786 | } | |
787 | ||
788 | Py_DecRef(py_conditionlist); | |
789 | ||
514b2edc UH |
790 | PyGILState_Release(gstate); |
791 | ||
21dfd91d | 792 | return ret; |
514b2edc UH |
793 | |
794 | err: | |
795 | PyGILState_Release(gstate); | |
796 | ||
797 | return SRD_ERR; | |
798 | ||
799 | ret_9999: | |
800 | PyGILState_Release(gstate); | |
801 | ||
802 | return 9999; | |
21dfd91d UH |
803 | } |
804 | ||
96e1cee7 GS |
805 | /** |
806 | * Create a SKIP condition list for condition-less .wait() calls. | |
807 | * | |
808 | * @param di Decoder instance. | |
809 | * @param count Number of samples to skip. | |
810 | * | |
811 | * @retval SRD_OK The new condition list was set successfully. | |
812 | * @retval SRD_ERR There was an error setting the new condition list. | |
813 | * The contents of di->condition_list are undefined. | |
814 | * | |
815 | * This routine is a reduced and specialized version of the @ref | |
816 | * set_new_condition_list() and @ref create_term_list() routines which | |
817 | * gets invoked when .wait() was called without specifications for | |
818 | * conditions. This minor duplication of the SKIP term list creation | |
819 | * simplifies the logic and avoids the creation of expensive Python | |
820 | * objects with "constant" values which the caller did not pass in the | |
821 | * first place. It results in maximum sharing of match handling code | |
822 | * paths. | |
823 | */ | |
824 | static int set_skip_condition(struct srd_decoder_inst *di, uint64_t count) | |
825 | { | |
826 | struct srd_term *term; | |
827 | GSList *term_list; | |
828 | ||
829 | condition_list_free(di); | |
35c10c0e | 830 | term = g_malloc(sizeof(*term)); |
96e1cee7 GS |
831 | term->type = SRD_TERM_SKIP; |
832 | term->num_samples_to_skip = count; | |
833 | term->num_samples_already_skipped = 0; | |
834 | term_list = g_slist_append(NULL, term); | |
835 | di->condition_list = g_slist_append(di->condition_list, term_list); | |
836 | ||
837 | return SRD_OK; | |
838 | } | |
839 | ||
21dfd91d UH |
840 | static PyObject *Decoder_wait(PyObject *self, PyObject *args) |
841 | { | |
842 | int ret; | |
96e1cee7 | 843 | uint64_t skip_count; |
21dfd91d UH |
844 | unsigned int i; |
845 | gboolean found_match; | |
846 | struct srd_decoder_inst *di; | |
847 | PyObject *py_pinvalues, *py_matched; | |
514b2edc | 848 | PyGILState_STATE gstate; |
21dfd91d UH |
849 | |
850 | if (!self || !args) | |
851 | return NULL; | |
852 | ||
514b2edc UH |
853 | gstate = PyGILState_Ensure(); |
854 | ||
21dfd91d UH |
855 | if (!(di = srd_inst_find_by_obj(NULL, self))) { |
856 | PyErr_SetString(PyExc_Exception, "decoder instance not found"); | |
514b2edc | 857 | PyGILState_Release(gstate); |
21dfd91d UH |
858 | Py_RETURN_NONE; |
859 | } | |
860 | ||
861 | ret = set_new_condition_list(self, args); | |
04383ea8 GS |
862 | if (ret < 0) { |
863 | srd_dbg("%s: %s: Aborting wait().", di->inst_id, __func__); | |
514b2edc | 864 | goto err; |
04383ea8 | 865 | } |
21dfd91d | 866 | if (ret == 9999) { |
96e1cee7 GS |
867 | /* |
868 | * Empty condition list, automatic match. Arrange for the | |
869 | * execution of regular match handling code paths such that | |
870 | * the next available sample is returned to the caller. | |
871 | * Make sure to skip one sample when "anywhere within the | |
872 | * stream", yet make sure to not skip sample number 0. | |
873 | */ | |
874 | if (di->abs_cur_samplenum) | |
875 | skip_count = 1; | |
876 | else if (!di->condition_list) | |
877 | skip_count = 0; | |
878 | else | |
879 | skip_count = 1; | |
880 | ret = set_skip_condition(di, skip_count); | |
881 | if (ret < 0) { | |
882 | srd_dbg("%s: %s: Cannot setup condition-less wait().", | |
883 | di->inst_id, __func__); | |
514b2edc | 884 | goto err; |
96e1cee7 | 885 | } |
21dfd91d UH |
886 | } |
887 | ||
888 | while (1) { | |
514b2edc UH |
889 | |
890 | Py_BEGIN_ALLOW_THREADS | |
891 | ||
04383ea8 | 892 | /* Wait for new samples to process, or termination request. */ |
21dfd91d | 893 | g_mutex_lock(&di->data_mutex); |
04383ea8 | 894 | while (!di->got_new_samples && !di->want_wait_terminate) |
21dfd91d UH |
895 | g_cond_wait(&di->got_new_samples_cond, &di->data_mutex); |
896 | ||
04383ea8 GS |
897 | /* |
898 | * Check whether any of the current condition(s) match. | |
899 | * Arrange for termination requests to take a code path which | |
900 | * won't find new samples to process, pretends to have processed | |
901 | * previously stored samples, and returns to the main thread, | |
902 | * while the termination request still gets signalled. | |
903 | */ | |
904 | found_match = FALSE; | |
60d4764a UH |
905 | |
906 | /* Ignore return value for now, should never be negative. */ | |
907 | (void)process_samples_until_condition_match(di, &found_match); | |
21dfd91d | 908 | |
514b2edc UH |
909 | Py_END_ALLOW_THREADS |
910 | ||
21dfd91d UH |
911 | /* If there's a match, set self.samplenum etc. and return. */ |
912 | if (found_match) { | |
913 | /* Set self.samplenum to the (absolute) sample number that matched. */ | |
914 | PyObject_SetAttrString(di->py_inst, "samplenum", | |
4564e8e5 | 915 | PyLong_FromLong(di->abs_cur_samplenum)); |
21dfd91d UH |
916 | |
917 | if (di->match_array && di->match_array->len > 0) { | |
918 | py_matched = PyTuple_New(di->match_array->len); | |
919 | for (i = 0; i < di->match_array->len; i++) | |
920 | PyTuple_SetItem(py_matched, i, PyBool_FromLong(di->match_array->data[i])); | |
921 | PyObject_SetAttrString(di->py_inst, "matched", py_matched); | |
922 | match_array_free(di); | |
923 | } else { | |
924 | PyObject_SetAttrString(di->py_inst, "matched", Py_None); | |
925 | } | |
fa168be6 | 926 | |
21dfd91d UH |
927 | py_pinvalues = get_current_pinvalues(di); |
928 | ||
929 | g_mutex_unlock(&di->data_mutex); | |
930 | ||
514b2edc UH |
931 | PyGILState_Release(gstate); |
932 | ||
21dfd91d UH |
933 | return py_pinvalues; |
934 | } | |
935 | ||
936 | /* No match, reset state for the next chunk. */ | |
937 | di->got_new_samples = FALSE; | |
938 | di->handled_all_samples = TRUE; | |
4564e8e5 UH |
939 | di->abs_start_samplenum = 0; |
940 | di->abs_end_samplenum = 0; | |
21dfd91d UH |
941 | di->inbuf = NULL; |
942 | di->inbuflen = 0; | |
943 | ||
944 | /* Signal the main thread that we handled all samples. */ | |
945 | g_cond_signal(&di->handled_all_samples_cond); | |
946 | ||
04383ea8 GS |
947 | /* |
948 | * When termination of wait() and decode() was requested, | |
949 | * then exit the loop after releasing the mutex. | |
950 | */ | |
951 | if (di->want_wait_terminate) { | |
952 | srd_dbg("%s: %s: Will return from wait().", | |
953 | di->inst_id, __func__); | |
954 | g_mutex_unlock(&di->data_mutex); | |
514b2edc | 955 | goto err; |
04383ea8 GS |
956 | } |
957 | ||
21dfd91d UH |
958 | g_mutex_unlock(&di->data_mutex); |
959 | } | |
960 | ||
514b2edc UH |
961 | PyGILState_Release(gstate); |
962 | ||
21dfd91d | 963 | Py_RETURN_NONE; |
514b2edc UH |
964 | |
965 | err: | |
966 | PyGILState_Release(gstate); | |
967 | ||
968 | return NULL; | |
21dfd91d UH |
969 | } |
970 | ||
971 | /** | |
972 | * Return whether the specified channel was supplied to the decoder. | |
973 | * | |
974 | * @param self TODO. Must not be NULL. | |
975 | * @param args TODO. Must not be NULL. | |
976 | * | |
977 | * @retval Py_True The channel has been supplied by the frontend. | |
978 | * @retval Py_False The channel has been supplied by the frontend. | |
979 | * @retval NULL An error occurred. | |
980 | */ | |
981 | static PyObject *Decoder_has_channel(PyObject *self, PyObject *args) | |
982 | { | |
cd8d9188 | 983 | int idx, count; |
21dfd91d | 984 | struct srd_decoder_inst *di; |
514b2edc | 985 | PyGILState_STATE gstate; |
21dfd91d UH |
986 | |
987 | if (!self || !args) | |
988 | return NULL; | |
989 | ||
514b2edc UH |
990 | gstate = PyGILState_Ensure(); |
991 | ||
21dfd91d UH |
992 | if (!(di = srd_inst_find_by_obj(NULL, self))) { |
993 | PyErr_SetString(PyExc_Exception, "decoder instance not found"); | |
514b2edc | 994 | goto err; |
21dfd91d UH |
995 | } |
996 | ||
cd8d9188 GS |
997 | /* |
998 | * Get the integer argument of self.has_channel(). Check for | |
999 | * the range of supported PD input channel numbers. | |
1000 | */ | |
1001 | if (!PyArg_ParseTuple(args, "i", &idx)) { | |
21dfd91d | 1002 | /* Let Python raise this exception. */ |
514b2edc | 1003 | goto err; |
21dfd91d UH |
1004 | } |
1005 | ||
cd8d9188 GS |
1006 | count = g_slist_length(di->decoder->channels) + |
1007 | g_slist_length(di->decoder->opt_channels); | |
1008 | if (idx < 0 || idx >= count) { | |
1009 | srd_err("Invalid index %d, PD channel count %d.", idx, count); | |
1010 | PyErr_SetString(PyExc_IndexError, "invalid channel index"); | |
514b2edc | 1011 | goto err; |
21dfd91d UH |
1012 | } |
1013 | ||
514b2edc UH |
1014 | PyGILState_Release(gstate); |
1015 | ||
21dfd91d | 1016 | return (di->dec_channelmap[idx] == -1) ? Py_False : Py_True; |
514b2edc UH |
1017 | |
1018 | err: | |
1019 | PyGILState_Release(gstate); | |
1020 | ||
1021 | return NULL; | |
21dfd91d UH |
1022 | } |
1023 | ||
d0a0ed03 | 1024 | static PyMethodDef Decoder_methods[] = { |
7969d803 UH |
1025 | { "put", Decoder_put, METH_VARARGS, |
1026 | "Accepts a dictionary with the following keys: startsample, endsample, data" }, | |
1027 | { "register", (PyCFunction)Decoder_register, METH_VARARGS|METH_KEYWORDS, | |
1028 | "Register a new output stream" }, | |
1029 | { "wait", Decoder_wait, METH_VARARGS, | |
1030 | "Wait for one or more conditions to occur" }, | |
1031 | { "has_channel", Decoder_has_channel, METH_VARARGS, | |
1032 | "Report whether a channel was supplied" }, | |
d0a0ed03 BV |
1033 | {NULL, NULL, 0, NULL} |
1034 | }; | |
1035 | ||
21dfd91d UH |
1036 | /** |
1037 | * Create the sigrokdecode.Decoder type. | |
1038 | * | |
201a85a8 | 1039 | * @return The new type object. |
21dfd91d | 1040 | * |
201a85a8 DE |
1041 | * @private |
1042 | */ | |
1043 | SRD_PRIV PyObject *srd_Decoder_type_new(void) | |
1044 | { | |
1045 | PyType_Spec spec; | |
1046 | PyType_Slot slots[] = { | |
1047 | { Py_tp_doc, "sigrok Decoder base class" }, | |
1048 | { Py_tp_methods, Decoder_methods }, | |
1049 | { Py_tp_new, (void *)&PyType_GenericNew }, | |
1050 | { 0, NULL } | |
1051 | }; | |
514b2edc UH |
1052 | PyObject *py_obj; |
1053 | PyGILState_STATE gstate; | |
1054 | ||
1055 | gstate = PyGILState_Ensure(); | |
1056 | ||
201a85a8 DE |
1057 | spec.name = "sigrokdecode.Decoder"; |
1058 | spec.basicsize = sizeof(srd_Decoder); | |
1059 | spec.itemsize = 0; | |
1060 | spec.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE; | |
1061 | spec.slots = slots; | |
1062 | ||
514b2edc UH |
1063 | py_obj = PyType_FromSpec(&spec); |
1064 | ||
1065 | PyGILState_Release(gstate); | |
1066 | ||
1067 | return py_obj; | |
201a85a8 | 1068 | } |