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b2c19614 | 1 | /* |
50bd5d25 | 2 | * This file is part of the libsigrokdecode project. |
b2c19614 BV |
3 | * |
4 | * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> | |
4fadb128 | 5 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> |
b2c19614 BV |
6 | * |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 3 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #include "config.h" | |
c1f86f02 UH |
22 | #include "libsigrokdecode.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */ |
23 | #include "libsigrokdecode-internal.h" | |
eb2bbd66 | 24 | #include <glib.h> |
b2c19614 | 25 | |
54fdeeef UH |
26 | /** |
27 | * @file | |
28 | * | |
29 | * Listing, loading, unloading, and handling protocol decoders. | |
30 | */ | |
31 | ||
4895418c UH |
32 | /** |
33 | * @defgroup grp_decoder Protocol decoders | |
34 | * | |
35 | * Handling protocol decoders. | |
36 | * | |
37 | * @{ | |
38 | */ | |
39 | ||
57790bc8 UH |
40 | /** @cond PRIVATE */ |
41 | ||
b2c19614 | 42 | /* The list of protocol decoders. */ |
55c3c5f4 | 43 | SRD_PRIV GSList *pd_list = NULL; |
b2c19614 | 44 | |
c9bfccc6 | 45 | /* module_sigrokdecode.c */ |
55c3c5f4 | 46 | extern SRD_PRIV PyObject *mod_sigrokdecode; |
451680f1 | 47 | |
57790bc8 UH |
48 | /** @endcond */ |
49 | ||
b2c19614 BV |
50 | /** |
51 | * Returns the list of supported/loaded protocol decoders. | |
52 | * | |
53 | * This is a GSList containing the names of the decoders as strings. | |
54 | * | |
55 | * @return List of decoders, NULL if none are supported or loaded. | |
8c664ca2 UH |
56 | * |
57 | * @since 0.1.0 (but the API changed in 0.2.0) | |
b2c19614 | 58 | */ |
38ff5046 | 59 | SRD_API const GSList *srd_decoder_list(void) |
b2c19614 | 60 | { |
e5080882 | 61 | return pd_list; |
b2c19614 BV |
62 | } |
63 | ||
b2c19614 BV |
64 | /** |
65 | * Get the decoder with the specified ID. | |
66 | * | |
67 | * @param id The ID string of the decoder to return. | |
582c8473 | 68 | * |
b2c19614 | 69 | * @return The decoder with the specified ID, or NULL if not found. |
8c664ca2 UH |
70 | * |
71 | * @since 0.1.0 | |
b2c19614 | 72 | */ |
9d122fd5 | 73 | SRD_API struct srd_decoder *srd_decoder_get_by_id(const char *id) |
b2c19614 BV |
74 | { |
75 | GSList *l; | |
76 | struct srd_decoder *dec; | |
77 | ||
38ff5046 | 78 | for (l = pd_list; l; l = l->next) { |
b2c19614 BV |
79 | dec = l->data; |
80 | if (!strcmp(dec->id, id)) | |
81 | return dec; | |
82 | } | |
83 | ||
84 | return NULL; | |
85 | } | |
86 | ||
5a2c4dc4 UH |
87 | static int get_probes(const struct srd_decoder *d, const char *attr, |
88 | GSList **pl) | |
f38ec285 BV |
89 | { |
90 | PyObject *py_probelist, *py_entry; | |
91 | struct srd_probe *p; | |
92 | int ret, num_probes, i; | |
93 | ||
94 | if (!PyObject_HasAttrString(d->py_dec, attr)) | |
95 | /* No probes of this type specified. */ | |
96 | return SRD_OK; | |
97 | ||
98 | ret = SRD_ERR_PYTHON; | |
99 | py_probelist = py_entry = NULL; | |
100 | ||
101 | py_probelist = PyObject_GetAttrString(d->py_dec, attr); | |
102 | if (!PyList_Check(py_probelist)) { | |
103 | srd_err("Protocol decoder %s %s attribute is not " | |
c9bfccc6 | 104 | "a list.", d->name, attr); |
f38ec285 BV |
105 | goto err_out; |
106 | } | |
107 | ||
108 | num_probes = PyList_Size(py_probelist); | |
109 | if (num_probes == 0) | |
110 | /* Empty probelist. */ | |
111 | return SRD_OK; | |
112 | ||
113 | for (i = 0; i < num_probes; i++) { | |
114 | py_entry = PyList_GetItem(py_probelist, i); | |
115 | if (!PyDict_Check(py_entry)) { | |
116 | srd_err("Protocol decoder %s %s attribute is not " | |
c9bfccc6 | 117 | "a list with dict elements.", d->name, attr); |
f38ec285 BV |
118 | goto err_out; |
119 | } | |
120 | ||
121 | if (!(p = g_try_malloc(sizeof(struct srd_probe)))) { | |
a61ece20 | 122 | srd_err("Failed to g_malloc() struct srd_probe."); |
f38ec285 BV |
123 | ret = SRD_ERR_MALLOC; |
124 | goto err_out; | |
125 | } | |
126 | ||
127 | if ((py_dictitem_as_str(py_entry, "id", &p->id)) != SRD_OK) | |
128 | goto err_out; | |
129 | if ((py_dictitem_as_str(py_entry, "name", &p->name)) != SRD_OK) | |
130 | goto err_out; | |
131 | if ((py_dictitem_as_str(py_entry, "desc", &p->desc)) != SRD_OK) | |
132 | goto err_out; | |
133 | p->order = i; | |
134 | ||
135 | *pl = g_slist_append(*pl, p); | |
136 | } | |
137 | ret = SRD_OK; | |
138 | ||
139 | err_out: | |
140 | Py_DecRef(py_entry); | |
141 | Py_DecRef(py_probelist); | |
142 | ||
143 | return ret; | |
144 | } | |
145 | ||
2f395bff BV |
146 | static int get_options(struct srd_decoder *d) |
147 | { | |
148 | PyObject *py_opts, *py_keys, *py_values, *py_val, *py_desc, *py_default; | |
149 | Py_ssize_t i; | |
150 | struct srd_decoder_option *o; | |
151 | gint64 def_long; | |
152 | int num_keys, overflow, ret; | |
153 | char *key, *def_str; | |
154 | ||
155 | ret = SRD_ERR_PYTHON; | |
156 | key = NULL; | |
157 | ||
158 | if (!PyObject_HasAttrString(d->py_dec, "options")) | |
159 | /* That's fine. */ | |
160 | return SRD_OK; | |
161 | ||
162 | /* If present, options must be a dictionary. */ | |
163 | py_opts = PyObject_GetAttrString(d->py_dec, "options"); | |
164 | if (!PyDict_Check(py_opts)) { | |
165 | srd_err("Protocol decoder %s options attribute is not " | |
166 | "a dictionary.", d->name); | |
167 | goto err_out; | |
168 | } | |
169 | ||
170 | py_keys = PyDict_Keys(py_opts); | |
171 | py_values = PyDict_Values(py_opts); | |
172 | num_keys = PyList_Size(py_keys); | |
173 | for (i = 0; i < num_keys; i++) { | |
174 | py_str_as_str(PyList_GetItem(py_keys, i), &key); | |
175 | srd_dbg("option '%s'", key); | |
176 | py_val = PyList_GetItem(py_values, i); | |
177 | if (!PyList_Check(py_val) || PyList_Size(py_val) != 2) { | |
178 | srd_err("Protocol decoder %s option '%s' value must be " | |
179 | "a list with two elements.", d->name, key); | |
180 | goto err_out; | |
181 | } | |
182 | py_desc = PyList_GetItem(py_val, 0); | |
183 | if (!PyUnicode_Check(py_desc)) { | |
184 | srd_err("Protocol decoder %s option '%s' has no " | |
185 | "description.", d->name, key); | |
186 | goto err_out; | |
187 | } | |
188 | py_default = PyList_GetItem(py_val, 1); | |
189 | if (!PyUnicode_Check(py_default) && !PyLong_Check(py_default)) { | |
190 | srd_err("Protocol decoder %s option '%s' has default " | |
191 | "of unsupported type '%s'.", d->name, key, | |
192 | Py_TYPE(py_default)->tp_name); | |
193 | goto err_out; | |
194 | } | |
195 | if (!(o = g_try_malloc(sizeof(struct srd_decoder_option)))) { | |
196 | srd_err("option malloc failed"); | |
197 | goto err_out; | |
198 | } | |
199 | o->id = g_strdup(key); | |
200 | py_str_as_str(py_desc, &o->desc); | |
201 | if (PyUnicode_Check(py_default)) { | |
202 | /* UTF-8 string */ | |
203 | py_str_as_str(py_default, &def_str); | |
204 | o->def = g_variant_new_string(def_str); | |
205 | g_free(def_str); | |
206 | } else { | |
207 | /* Long */ | |
208 | def_long = PyLong_AsLongAndOverflow(py_default, &overflow); | |
209 | if (overflow) { | |
210 | /* Value is < LONG_MIN or > LONG_MAX */ | |
211 | PyErr_Clear(); | |
212 | srd_err("Protocol decoder %s option '%s' has " | |
213 | "invalid default value.", d->name, key); | |
214 | goto err_out; | |
215 | } | |
216 | o->def = g_variant_new_int64(def_long); | |
217 | } | |
218 | g_variant_ref_sink(o->def); | |
219 | d->options = g_slist_append(d->options, o); | |
e592ac89 | 220 | g_free(key); |
ca3fc3c0 | 221 | key = NULL; |
2f395bff BV |
222 | } |
223 | Py_DecRef(py_keys); | |
224 | Py_DecRef(py_values); | |
225 | ||
226 | ret = SRD_OK; | |
227 | ||
228 | err_out: | |
229 | Py_XDECREF(py_opts); | |
230 | g_free(key); | |
231 | ||
232 | return ret; | |
233 | } | |
234 | ||
b2c19614 | 235 | /** |
64c29e28 | 236 | * Load a protocol decoder module into the embedded Python interpreter. |
b2c19614 | 237 | * |
38ff5046 | 238 | * @param module_name The module name to be loaded. |
b2c19614 BV |
239 | * |
240 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
8c664ca2 UH |
241 | * |
242 | * @since 0.1.0 | |
b2c19614 | 243 | */ |
9d122fd5 | 244 | SRD_API int srd_decoder_load(const char *module_name) |
b2c19614 | 245 | { |
11ea8ae1 | 246 | PyObject *py_basedec, *py_method, *py_attr, *py_annlist, *py_ann; |
b2c19614 | 247 | struct srd_decoder *d; |
451680f1 | 248 | int alen, ret, i; |
15969949 | 249 | char **ann; |
38ff5046 UH |
250 | struct srd_probe *p; |
251 | GSList *l; | |
b2c19614 | 252 | |
8ad6e500 | 253 | srd_dbg("Loading protocol decoder '%s'.", module_name); |
64c29e28 | 254 | |
d906d3f9 | 255 | py_basedec = py_method = py_attr = NULL; |
b2c19614 | 256 | |
451680f1 | 257 | if (!(d = g_try_malloc0(sizeof(struct srd_decoder)))) { |
a61ece20 | 258 | srd_dbg("Failed to g_malloc() struct srd_decoder."); |
451680f1 BV |
259 | ret = SRD_ERR_MALLOC; |
260 | goto err_out; | |
b2c19614 BV |
261 | } |
262 | ||
21481b66 BV |
263 | ret = SRD_ERR_PYTHON; |
264 | ||
451680f1 | 265 | /* Import the Python module. */ |
9b37109d | 266 | if (!(d->py_mod = PyImport_ImportModule(module_name))) { |
aafeeaea | 267 | srd_exception_catch("Import of '%s' failed.", module_name); |
451680f1 BV |
268 | goto err_out; |
269 | } | |
b2c19614 | 270 | |
451680f1 BV |
271 | /* Get the 'Decoder' class as Python object. */ |
272 | if (!(d->py_dec = PyObject_GetAttrString(d->py_mod, "Decoder"))) { | |
273 | /* This generated an AttributeError exception. */ | |
274 | PyErr_Clear(); | |
361fdcaa UH |
275 | srd_err("Decoder class not found in protocol decoder %s.", |
276 | module_name); | |
451680f1 BV |
277 | goto err_out; |
278 | } | |
b2c19614 | 279 | |
451680f1 | 280 | if (!(py_basedec = PyObject_GetAttrString(mod_sigrokdecode, "Decoder"))) { |
7a1712c4 | 281 | srd_dbg("sigrokdecode module not loaded."); |
451680f1 BV |
282 | goto err_out; |
283 | } | |
b2c19614 | 284 | |
451680f1 BV |
285 | if (!PyObject_IsSubclass(d->py_dec, py_basedec)) { |
286 | srd_err("Decoder class in protocol decoder module %s is not " | |
9b37109d | 287 | "a subclass of sigrokdecode.Decoder.", module_name); |
451680f1 BV |
288 | goto err_out; |
289 | } | |
ad022d94 | 290 | Py_CLEAR(py_basedec); |
b2c19614 | 291 | |
1d552cd3 BV |
292 | /* Check for a proper start() method. */ |
293 | if (!PyObject_HasAttrString(d->py_dec, "start")) { | |
294 | srd_err("Protocol decoder %s has no start() method Decoder " | |
9b37109d | 295 | "class.", module_name); |
1d552cd3 BV |
296 | goto err_out; |
297 | } | |
298 | py_method = PyObject_GetAttrString(d->py_dec, "start"); | |
299 | if (!PyFunction_Check(py_method)) { | |
d906d3f9 | 300 | srd_err("Protocol decoder %s Decoder class attribute 'start' " |
9b37109d | 301 | "is not a method.", module_name); |
1d552cd3 BV |
302 | goto err_out; |
303 | } | |
ad022d94 | 304 | Py_CLEAR(py_method); |
1d552cd3 BV |
305 | |
306 | /* Check for a proper decode() method. */ | |
307 | if (!PyObject_HasAttrString(d->py_dec, "decode")) { | |
308 | srd_err("Protocol decoder %s has no decode() method Decoder " | |
9b37109d | 309 | "class.", module_name); |
1d552cd3 BV |
310 | goto err_out; |
311 | } | |
312 | py_method = PyObject_GetAttrString(d->py_dec, "decode"); | |
313 | if (!PyFunction_Check(py_method)) { | |
314 | srd_err("Protocol decoder %s Decoder class attribute 'decode' " | |
9b37109d | 315 | "is not a method.", module_name); |
1d552cd3 BV |
316 | goto err_out; |
317 | } | |
ad022d94 | 318 | Py_CLEAR(py_method); |
1d552cd3 | 319 | |
2f395bff BV |
320 | if (get_options(d) != SRD_OK) |
321 | goto err_out; | |
11ea8ae1 | 322 | |
f38ec285 BV |
323 | /* Check and import required probes. */ |
324 | if (get_probes(d, "probes", &d->probes) != SRD_OK) | |
325 | goto err_out; | |
326 | ||
327 | /* Check and import optional probes. */ | |
dcdf4883 | 328 | if (get_probes(d, "optional_probes", &d->opt_probes) != SRD_OK) |
f38ec285 BV |
329 | goto err_out; |
330 | ||
38ff5046 UH |
331 | /* |
332 | * Fix order numbers for the optional probes. | |
333 | * | |
334 | * Example: | |
335 | * Required probes: r1, r2, r3. Optional: o1, o2, o3, o4. | |
336 | * 'order' fields in the d->probes list = 0, 1, 2. | |
337 | * 'order' fields in the d->opt_probes list = 3, 4, 5, 6. | |
338 | */ | |
339 | for (l = d->opt_probes; l; l = l->next) { | |
340 | p = l->data; | |
341 | p->order += g_slist_length(d->probes); | |
342 | } | |
343 | ||
f38ec285 | 344 | /* Store required fields in newly allocated strings. */ |
21481b66 | 345 | if (py_attr_as_str(d->py_dec, "id", &(d->id)) != SRD_OK) |
451680f1 | 346 | goto err_out; |
b2c19614 | 347 | |
21481b66 | 348 | if (py_attr_as_str(d->py_dec, "name", &(d->name)) != SRD_OK) |
451680f1 | 349 | goto err_out; |
b2c19614 | 350 | |
21481b66 | 351 | if (py_attr_as_str(d->py_dec, "longname", &(d->longname)) != SRD_OK) |
451680f1 | 352 | goto err_out; |
b2c19614 | 353 | |
21481b66 | 354 | if (py_attr_as_str(d->py_dec, "desc", &(d->desc)) != SRD_OK) |
451680f1 | 355 | goto err_out; |
b2c19614 | 356 | |
21481b66 | 357 | if (py_attr_as_str(d->py_dec, "license", &(d->license)) != SRD_OK) |
451680f1 | 358 | goto err_out; |
b2c19614 | 359 | |
361fdcaa | 360 | /* Convert class annotation attribute to GSList of **char. */ |
e97b6ef5 | 361 | d->annotations = NULL; |
451680f1 BV |
362 | if (PyObject_HasAttrString(d->py_dec, "annotations")) { |
363 | py_annlist = PyObject_GetAttrString(d->py_dec, "annotations"); | |
15969949 | 364 | if (!PyList_Check(py_annlist)) { |
c9bfccc6 | 365 | srd_err("Protocol decoder module %s annotations " |
9b37109d | 366 | "should be a list.", module_name); |
451680f1 | 367 | goto err_out; |
15969949 BV |
368 | } |
369 | alen = PyList_Size(py_annlist); | |
370 | for (i = 0; i < alen; i++) { | |
371 | py_ann = PyList_GetItem(py_annlist, i); | |
372 | if (!PyList_Check(py_ann) || PyList_Size(py_ann) != 2) { | |
c9bfccc6 UH |
373 | srd_err("Protocol decoder module %s " |
374 | "annotation %d should be a list with " | |
9b37109d | 375 | "two elements.", module_name, i + 1); |
451680f1 | 376 | goto err_out; |
15969949 BV |
377 | } |
378 | ||
451680f1 | 379 | if (py_strlist_to_char(py_ann, &ann) != SRD_OK) { |
451680f1 BV |
380 | goto err_out; |
381 | } | |
e97b6ef5 | 382 | d->annotations = g_slist_append(d->annotations, ann); |
15969949 BV |
383 | } |
384 | } | |
385 | ||
9b37109d BV |
386 | /* Append it to the list of supported/loaded decoders. */ |
387 | pd_list = g_slist_append(pd_list, d); | |
388 | ||
451680f1 BV |
389 | ret = SRD_OK; |
390 | ||
391 | err_out: | |
392 | if (ret != SRD_OK) { | |
1d552cd3 | 393 | Py_XDECREF(py_method); |
451680f1 BV |
394 | Py_XDECREF(py_basedec); |
395 | Py_XDECREF(d->py_dec); | |
396 | Py_XDECREF(d->py_mod); | |
397 | g_free(d); | |
398 | } | |
b2c19614 | 399 | |
451680f1 BV |
400 | return ret; |
401 | } | |
402 | ||
582c8473 BV |
403 | /** |
404 | * Return a protocol decoder's docstring. | |
405 | * | |
406 | * @param dec The loaded protocol decoder. | |
407 | * | |
361fdcaa | 408 | * @return A newly allocated buffer containing the protocol decoder's |
abeeed8b | 409 | * documentation. The caller is responsible for free'ing the buffer. |
8c664ca2 UH |
410 | * |
411 | * @since 0.1.0 | |
582c8473 | 412 | */ |
b33b8aa5 | 413 | SRD_API char *srd_decoder_doc_get(const struct srd_decoder *dec) |
451680f1 | 414 | { |
e7edca07 | 415 | PyObject *py_str; |
451680f1 BV |
416 | char *doc; |
417 | ||
e7edca07 BV |
418 | if (!PyObject_HasAttrString(dec->py_mod, "__doc__")) |
419 | return NULL; | |
420 | ||
421 | if (!(py_str = PyObject_GetAttrString(dec->py_mod, "__doc__"))) { | |
aafeeaea | 422 | srd_exception_catch(""); |
e7edca07 BV |
423 | return NULL; |
424 | } | |
425 | ||
451680f1 | 426 | doc = NULL; |
e7edca07 BV |
427 | if (py_str != Py_None) |
428 | py_str_as_str(py_str, &doc); | |
429 | Py_DecRef(py_str); | |
451680f1 BV |
430 | |
431 | return doc; | |
b2c19614 BV |
432 | } |
433 | ||
fa12a21e BV |
434 | static void free_probes(GSList *probelist) |
435 | { | |
436 | GSList *l; | |
437 | struct srd_probe *p; | |
438 | ||
439 | if (probelist == NULL) | |
440 | return; | |
441 | ||
442 | for (l = probelist; l; l = l->next) { | |
443 | p = l->data; | |
444 | g_free(p->id); | |
445 | g_free(p->name); | |
446 | g_free(p->desc); | |
447 | g_free(p); | |
448 | } | |
449 | g_slist_free(probelist); | |
fa12a21e BV |
450 | } |
451 | ||
b2c19614 | 452 | /** |
4cc0d9fe | 453 | * Unload the specified protocol decoder. |
451680f1 | 454 | * |
fa12a21e | 455 | * @param dec The struct srd_decoder to be unloaded. |
451680f1 BV |
456 | * |
457 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
8c664ca2 UH |
458 | * |
459 | * @since 0.1.0 | |
b2c19614 | 460 | */ |
9d122fd5 | 461 | SRD_API int srd_decoder_unload(struct srd_decoder *dec) |
b2c19614 | 462 | { |
2f395bff BV |
463 | struct srd_decoder_option *o; |
464 | GSList *l; | |
465 | ||
8ad6e500 | 466 | srd_dbg("Unloading protocol decoder '%s'.", dec->name); |
fa12a21e | 467 | |
361fdcaa UH |
468 | /* |
469 | * Since any instances of this decoder need to be released as well, | |
fa12a21e BV |
470 | * but they could be anywhere in the stack, just free the entire |
471 | * stack. A frontend reloading a decoder thus has to restart all | |
361fdcaa UH |
472 | * instances, and rebuild the stack. |
473 | */ | |
a8b72b05 | 474 | srd_inst_free_all(NULL); |
fa12a21e | 475 | |
2f395bff BV |
476 | for (l = dec->options; l; l = l->next) { |
477 | o = l->data; | |
478 | g_free(o->id); | |
479 | g_free(o->desc); | |
480 | g_variant_unref(o->def); | |
481 | g_free(o); | |
482 | } | |
483 | g_slist_free(dec->options); | |
484 | ||
fa12a21e | 485 | free_probes(dec->probes); |
dcdf4883 | 486 | free_probes(dec->opt_probes); |
b2c19614 BV |
487 | g_free(dec->id); |
488 | g_free(dec->name); | |
b231546d | 489 | g_free(dec->longname); |
b2c19614 | 490 | g_free(dec->desc); |
b231546d | 491 | g_free(dec->license); |
b2c19614 | 492 | |
fa12a21e | 493 | /* The module's Decoder class. */ |
451680f1 | 494 | Py_XDECREF(dec->py_dec); |
fa12a21e | 495 | /* The module itself. */ |
b2c19614 BV |
496 | Py_XDECREF(dec->py_mod); |
497 | ||
e592ac89 | 498 | g_free(dec); |
b2c19614 BV |
499 | |
500 | return SRD_OK; | |
501 | } | |
502 | ||
582c8473 | 503 | /** |
9b37109d | 504 | * Load all installed protocol decoders. |
582c8473 BV |
505 | * |
506 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
8c664ca2 UH |
507 | * |
508 | * @since 0.1.0 | |
582c8473 | 509 | */ |
8ad6e500 | 510 | SRD_API int srd_decoder_load_all(void) |
b2c19614 | 511 | { |
eb2bbd66 BV |
512 | GDir *dir; |
513 | GError *error; | |
eb2bbd66 | 514 | const gchar *direntry; |
b2c19614 | 515 | |
eb2bbd66 | 516 | if (!(dir = g_dir_open(DECODERS_DIR, 0, &error))) { |
9b37109d | 517 | srd_err("Unable to open %s for reading.", DECODERS_DIR); |
b2c19614 BV |
518 | return SRD_ERR_DECODERS_DIR; |
519 | } | |
520 | ||
eb2bbd66 | 521 | while ((direntry = g_dir_read_name(dir)) != NULL) { |
9b37109d | 522 | /* The directory name is the module name (e.g. "i2c"). */ |
9d122fd5 | 523 | srd_decoder_load(direntry); |
b2c19614 | 524 | } |
eb2bbd66 | 525 | g_dir_close(dir); |
b2c19614 BV |
526 | |
527 | return SRD_OK; | |
528 | } | |
529 | ||
b2c19614 | 530 | /** |
582c8473 BV |
531 | * Unload all loaded protocol decoders. |
532 | * | |
533 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
8c664ca2 UH |
534 | * |
535 | * @since 0.1.0 | |
b2c19614 | 536 | */ |
8ad6e500 | 537 | SRD_API int srd_decoder_unload_all(void) |
b2c19614 BV |
538 | { |
539 | GSList *l; | |
540 | struct srd_decoder *dec; | |
541 | ||
38ff5046 | 542 | for (l = pd_list; l; l = l->next) { |
b2c19614 | 543 | dec = l->data; |
9d122fd5 | 544 | srd_decoder_unload(dec); |
b2c19614 BV |
545 | } |
546 | ||
547 | return SRD_OK; | |
548 | } | |
4895418c UH |
549 | |
550 | /** @} */ |