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Commit | Line | Data |
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1c6fa20f UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> | |
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 2 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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
17830fe1 | 21 | #include "config.h" |
1c6fa20f UH |
22 | #include <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */ |
23 | #include <stdio.h> | |
5c55017c | 24 | #include <string.h> |
7c24d086 | 25 | #include <dirent.h> |
1c6fa20f | 26 | |
e6c7a826 UH |
27 | /* Re-define some string functions for Python >= 3.0. */ |
28 | #if PY_VERSION_HEX >= 0x03000000 | |
29 | #define PyString_AsString PyBytes_AsString | |
30 | #define PyString_FromString PyBytes_FromString | |
31 | #define PyString_Check PyBytes_Check | |
32 | #endif | |
33 | ||
7c24d086 | 34 | /* The list of protocol decoders. */ |
a0d48257 | 35 | static GSList *list_pds = NULL; |
7c24d086 | 36 | |
f800adc4 UH |
37 | /* |
38 | * Here's a quick overview of Python/C API reference counting. | |
39 | * | |
40 | * Check the Python/C API docs for what type of reference a function returns. | |
41 | * | |
2557ad9d | 42 | * - If it returns a "new reference", you're responsible to Py_XDECREF() it. |
f800adc4 | 43 | * |
2557ad9d | 44 | * - If it returns a "borrowed reference", you MUST NOT Py_XDECREF() it. |
f800adc4 UH |
45 | * |
46 | * - If a function "steals" a reference, you no longer are responsible for | |
2557ad9d | 47 | * Py_XDECREF()ing it (someone else will do it for you at some point). |
f800adc4 UH |
48 | */ |
49 | ||
d752b12b | 50 | static int srd_load_decoder(const char *name, struct srd_decoder **dec); |
53bec0cf | 51 | |
922763ab KS |
52 | static int _unitsize = 1; |
53 | ||
922763ab KS |
54 | static PyObject* |
55 | emb_put(PyObject *self, PyObject *args) | |
56 | { | |
57 | PyObject *arg; | |
58 | ||
59 | if (!PyArg_ParseTuple(args, "O:put", &arg)) | |
60 | return NULL; | |
61 | ||
3b24e378 KS |
62 | fprintf(stderr, "sigrok.put() called by decoder:\n", arg); |
63 | PyObject_Print(arg, stdout, Py_PRINT_RAW); | |
64 | ||
922763ab KS |
65 | Py_RETURN_NONE; |
66 | } | |
67 | ||
68 | static PyMethodDef EmbMethods[] = { | |
922763ab KS |
69 | {"put", emb_put, METH_VARARGS, |
70 | "Accepts a dictionary with the following keys: time, duration, data"}, | |
71 | {NULL, NULL, 0, NULL} | |
72 | }; | |
73 | ||
1c6fa20f UH |
74 | /** |
75 | * Initialize libsigrokdecode. | |
76 | * | |
d752b12b | 77 | * @return SRD_OK upon success, a (negative) error code otherwise. |
1c6fa20f | 78 | */ |
d752b12b | 79 | int srd_init(void) |
1c6fa20f | 80 | { |
7c24d086 UH |
81 | DIR *dir; |
82 | struct dirent *dp; | |
53bec0cf | 83 | char *decodername; |
d752b12b | 84 | struct srd_decoder *dec; |
53bec0cf | 85 | int ret; |
7c24d086 | 86 | |
1c6fa20f UH |
87 | /* Py_Initialize() returns void and usually cannot fail. */ |
88 | Py_Initialize(); | |
89 | ||
922763ab KS |
90 | Py_InitModule("sigrok", EmbMethods); |
91 | ||
0895f56a | 92 | /* Add search directory for the protocol decoders. */ |
2454527d | 93 | /* FIXME: Check error code. */ |
70e44845 | 94 | /* FIXME: What happens if this function is called multiple times? */ |
0895f56a | 95 | PyRun_SimpleString("import sys;" |
10426068 | 96 | "sys.path.append(r'" DECODERS_DIR "');"); |
1c6fa20f | 97 | |
7c24d086 | 98 | if (!(dir = opendir(DECODERS_DIR))) |
d752b12b | 99 | return SRD_ERR_DECODERS_DIR; |
7c24d086 UH |
100 | |
101 | while ((dp = readdir(dir)) != NULL) { | |
276b55eb | 102 | if (!g_str_has_suffix(dp->d_name, ".py")) |
7c24d086 | 103 | continue; |
53bec0cf UH |
104 | |
105 | /* Decoder name == filename (without .py suffix). */ | |
106 | decodername = g_strndup(dp->d_name, strlen(dp->d_name) - 3); | |
107 | ||
108 | /* TODO: Error handling. */ | |
d752b12b | 109 | dec = malloc(sizeof(struct srd_decoder)); |
53bec0cf UH |
110 | |
111 | /* Load the decoder. */ | |
d752b12b | 112 | ret = srd_load_decoder(decodername, &dec); |
3b24e378 KS |
113 | if (!ret) |
114 | { | |
115 | /* Append it to the list of supported/loaded decoders. */ | |
116 | list_pds = g_slist_append(list_pds, dec); | |
117 | } | |
7c24d086 UH |
118 | } |
119 | closedir(dir); | |
120 | ||
d752b12b | 121 | return SRD_OK; |
1c6fa20f UH |
122 | } |
123 | ||
871d21e2 UH |
124 | /** |
125 | * Returns the list of supported/loaded protocol decoders. | |
126 | * | |
127 | * This is a GSList containing the names of the decoders as strings. | |
128 | * | |
129 | * @return List of decoders, NULL if none are supported or loaded. | |
130 | */ | |
d752b12b | 131 | GSList *srd_list_decoders(void) |
871d21e2 UH |
132 | { |
133 | return list_pds; | |
134 | } | |
135 | ||
53bec0cf UH |
136 | /** |
137 | * Get the decoder with the specified ID. | |
138 | * | |
139 | * @param id The ID string of the decoder to return. | |
140 | * @return The decoder with the specified ID, or NULL if not found. | |
141 | */ | |
d752b12b | 142 | struct srd_decoder *srd_get_decoder_by_id(const char *id) |
53bec0cf UH |
143 | { |
144 | GSList *l; | |
d752b12b | 145 | struct srd_decoder *dec; |
53bec0cf | 146 | |
d752b12b | 147 | for (l = srd_list_decoders(); l; l = l->next) { |
53bec0cf UH |
148 | dec = l->data; |
149 | if (!strcmp(dec->id, id)) | |
150 | return dec; | |
151 | } | |
152 | ||
153 | return NULL; | |
154 | } | |
155 | ||
5c55017c UH |
156 | /** |
157 | * Helper function to handle Python strings. | |
158 | * | |
159 | * TODO: @param entries. | |
160 | * | |
d752b12b | 161 | * @return SRD_OK upon success, a (negative) error code otherwise. |
70e44845 | 162 | * The 'outstr' argument points to a malloc()ed string upon success. |
5c55017c | 163 | */ |
922763ab | 164 | static int h_str(PyObject *py_res, PyObject *py_mod, |
5c55017c UH |
165 | const char *key, char **outstr) |
166 | { | |
167 | PyObject *py_str; | |
168 | char *str; | |
f7313eea | 169 | int ret; |
5c55017c UH |
170 | |
171 | py_str = PyMapping_GetItemString(py_res, (char *)key); | |
172 | if (!py_str || !PyString_Check(py_str)) { | |
d752b12b | 173 | ret = SRD_ERR_PYTHON; /* TODO: More specific error? */ |
922763ab | 174 | goto err_h_decref_mod; |
5c55017c UH |
175 | } |
176 | ||
6b08da24 UH |
177 | /* |
178 | * PyString_AsString()'s returned string refers to an internal buffer | |
179 | * (not a copy), i.e. the data must not be modified, and the memory | |
180 | * must not be free()'d. | |
181 | */ | |
5c55017c | 182 | if (!(str = PyString_AsString(py_str))) { |
d752b12b | 183 | ret = SRD_ERR_PYTHON; /* TODO: More specific error? */ |
f7313eea | 184 | goto err_h_decref_str; |
5c55017c UH |
185 | } |
186 | ||
f9b54a6c | 187 | if (!(*outstr = g_strdup(str))) { |
d752b12b | 188 | ret = SRD_ERR_MALLOC; |
f7313eea | 189 | goto err_h_decref_str; |
5c55017c UH |
190 | } |
191 | ||
2557ad9d | 192 | Py_XDECREF(py_str); |
5c55017c | 193 | |
d752b12b | 194 | return SRD_OK; |
f7313eea UH |
195 | |
196 | err_h_decref_str: | |
197 | Py_XDECREF(py_str); | |
922763ab | 198 | err_h_decref_mod: |
f7313eea UH |
199 | Py_XDECREF(py_mod); |
200 | ||
201 | if (PyErr_Occurred()) | |
202 | PyErr_Print(); /* Returns void. */ | |
203 | ||
204 | return ret; | |
5c55017c UH |
205 | } |
206 | ||
1c6fa20f UH |
207 | /** |
208 | * TODO | |
209 | * | |
210 | * @param name TODO | |
70e44845 | 211 | * |
d752b12b | 212 | * @return SRD_OK upon success, a (negative) error code otherwise. |
1c6fa20f | 213 | */ |
d752b12b UH |
214 | static int srd_load_decoder(const char *name, |
215 | struct srd_decoder **dec) | |
1c6fa20f | 216 | { |
d752b12b | 217 | struct srd_decoder *d; |
3b24e378 | 218 | PyObject *py_mod, *py_func, *py_res, *py_instance = NULL, *py_args, *py_value/* , *py_tuple */; |
5c55017c | 219 | int r; |
3b24e378 | 220 | fprintf(stdout, "\n%s\n", name); |
5c55017c | 221 | |
5c55017c | 222 | /* "Import" the Python module. */ |
c7bb5dff | 223 | if (!(py_mod = PyImport_ImportModule(name))) { /* NEWREF */ |
6b08da24 | 224 | PyErr_Print(); /* Returns void. */ |
d752b12b | 225 | return SRD_ERR_PYTHON; /* TODO: More specific error? */ |
5c55017c | 226 | } |
5c55017c | 227 | |
922763ab KS |
228 | /* Get the 'register' dictionary as Python object. */ |
229 | py_res = PyObject_GetAttrString(py_mod, "register"); /* NEWREF */ | |
230 | if (!py_res || PyCallable_Check(py_res)) { | |
5c55017c | 231 | if (PyErr_Occurred()) |
6b08da24 | 232 | PyErr_Print(); /* Returns void. */ |
2557ad9d | 233 | Py_XDECREF(py_mod); |
922763ab | 234 | fprintf(stderr, "register dictionary was not found or is declared a function.\n"); |
d752b12b | 235 | return SRD_ERR_PYTHON; /* TODO: More specific error? */ |
5c55017c UH |
236 | } |
237 | ||
5c55017c | 238 | |
d752b12b UH |
239 | if (!(d = malloc(sizeof(struct srd_decoder)))) |
240 | return SRD_ERR_MALLOC; | |
5c55017c | 241 | |
922763ab | 242 | if ((r = h_str(py_res, py_mod, "id", &(d->id))) < 0) |
5c55017c UH |
243 | return r; |
244 | ||
922763ab | 245 | if ((r = h_str(py_res, py_mod, "name", &(d->name))) < 0) |
5c55017c UH |
246 | return r; |
247 | ||
922763ab | 248 | if ((r = h_str(py_res, py_mod, "longname", |
75a282e5 UH |
249 | &(d->longname))) < 0) |
250 | return r; | |
251 | ||
922763ab | 252 | if ((r = h_str(py_res, py_mod, "desc", &(d->desc))) < 0) |
5c55017c UH |
253 | return r; |
254 | ||
922763ab | 255 | if ((r = h_str(py_res, py_mod, "longdesc", |
75a282e5 UH |
256 | &(d->longdesc))) < 0) |
257 | return r; | |
258 | ||
922763ab | 259 | if ((r = h_str(py_res, py_mod, "author", &(d->author))) < 0) |
75a282e5 UH |
260 | return r; |
261 | ||
922763ab | 262 | if ((r = h_str(py_res, py_mod, "email", &(d->email))) < 0) |
75a282e5 UH |
263 | return r; |
264 | ||
922763ab | 265 | if ((r = h_str(py_res, py_mod, "license", &(d->license))) < 0) |
75a282e5 UH |
266 | return r; |
267 | ||
5c55017c UH |
268 | d->py_mod = py_mod; |
269 | ||
2557ad9d | 270 | Py_XDECREF(py_res); |
3b24e378 KS |
271 | |
272 | ||
273 | /* Get the 'Decoder' class as Python object. */ | |
274 | py_res = PyObject_GetAttrString(py_mod, "Decoder"); /* NEWREF */ | |
275 | if (!py_res) { | |
5c55017c | 276 | if (PyErr_Occurred()) |
6b08da24 | 277 | PyErr_Print(); /* Returns void. */ |
3b24e378 KS |
278 | //Py_XDECREF(py_mod); |
279 | fprintf(stderr, "Decoder class not found in PD module %s\n", name); | |
280 | //return SRD_ERR_PYTHON; /* TODO: More specific error? */ | |
281 | ||
282 | ||
283 | /* Get the 'decode' function name as Python callable object. */ | |
284 | py_func = PyObject_GetAttrString(py_mod, "decode"); /* NEWREF */ | |
285 | if (!py_func || !PyCallable_Check(py_func)) { | |
286 | if (PyErr_Occurred()) | |
287 | PyErr_Print(); /* Returns void. */ | |
288 | Py_XDECREF(py_mod); | |
289 | return SRD_ERR_PYTHON; /* TODO: More specific error? */ | |
290 | } | |
291 | } else { | |
292 | PyObject_Print(py_res, stdout, Py_PRINT_RAW); | |
293 | fprintf(stdout, "\n"); | |
294 | ||
295 | /* Create a Python tuple of size 1. */ | |
296 | if (!(py_args = PyTuple_New(1))) { /* NEWREF */ | |
297 | if (PyErr_Occurred()) | |
298 | PyErr_Print(); /* Returns void. */ | |
299 | ||
300 | Py_XDECREF(py_res); | |
301 | Py_XDECREF(py_mod); | |
302 | ||
303 | return SRD_ERR_PYTHON; /* TODO: More specific error? */ | |
304 | } | |
305 | ||
306 | py_value = Py_BuildValue("{sssisd}", | |
307 | "driver", "demo", | |
308 | "unitsize", _unitsize, //FIXME: Pass in a unitsize that matches the selected LA | |
309 | "starttime", 129318231823.0 //TODO: Fill with something reasonable. | |
310 | ); | |
311 | /* | |
312 | * IMPORTANT: PyTuple_SetItem() "steals" a reference to py_value! | |
313 | * That means we are no longer responsible for Py_XDECREF()'ing it. | |
314 | * It will automatically be free'd when the 'py_args' tuple is free'd. | |
315 | */ | |
316 | if (PyTuple_SetItem(py_args, 0, py_value) != 0) { /* STEAL */ | |
317 | Py_XDECREF(py_value); /* TODO: Ref. stolen upon error? */ | |
318 | Py_XDECREF(py_res); | |
319 | Py_XDECREF(py_mod); | |
320 | return SRD_ERR_PYTHON; /* TODO: More specific error? */ | |
321 | } | |
322 | ||
323 | /* Create an instance of the Decoder class */ | |
324 | py_instance = PyObject_CallObject(py_res, py_args); | |
325 | if (!py_instance) { | |
326 | if (PyErr_Occurred()) | |
327 | PyErr_Print(); /* Returns void. */ | |
328 | Py_XDECREF(py_value); /* TODO: Ref. stolen upon error? */ | |
329 | Py_XDECREF(py_res); | |
330 | Py_XDECREF(py_mod); | |
331 | fprintf(stderr, "Unable to create instance of Decoder class in PD module %s\n", name); | |
332 | return SRD_ERR_PYTHON; /* TODO: More specific error? */ | |
333 | } else { | |
334 | /* OK, we have successfully created an instance of the Decoder object */ | |
335 | ||
336 | /* Get the 'decode' function name as Python callable object. */ | |
337 | py_func = PyObject_GetAttrString(py_instance, "decode"); /* NEWREF */ | |
338 | if (!py_func || !PyCallable_Check(py_func)) { | |
339 | if (PyErr_Occurred()) | |
340 | PyErr_Print(); /* Returns void. */ | |
341 | fprintf(stderr, "Unable to find decode function in instance of Decoder class in PD module %s\n", name); | |
342 | Py_XDECREF(py_instance); | |
343 | Py_XDECREF(py_mod); | |
344 | return SRD_ERR_PYTHON; /* TODO: More specific error? */ | |
345 | } | |
346 | } | |
5c55017c UH |
347 | } |
348 | ||
922763ab | 349 | d->py_decodefunc = py_func; |
5c55017c | 350 | |
f9b54a6c UH |
351 | /* TODO: Handle func, inputformats, outputformats. */ |
352 | /* Note: They must at least be set to NULL, will segfault otherwise. */ | |
353 | d->func = NULL; | |
354 | d->inputformats = NULL; | |
355 | d->outputformats = NULL; | |
5c55017c UH |
356 | |
357 | *dec = d; | |
910e5fd8 | 358 | |
d752b12b | 359 | return SRD_OK; |
1c6fa20f UH |
360 | } |
361 | ||
362 | /** | |
363 | * Run the specified decoder function. | |
364 | * | |
5c55017c | 365 | * @param dec TODO |
1c6fa20f UH |
366 | * @param inbuf TODO |
367 | * @param inbuflen TODO | |
368 | * @param outbuf TODO | |
369 | * @param outbuflen TODO | |
70e44845 | 370 | * |
d752b12b | 371 | * @return SRD_OK upon success, a (negative) error code otherwise. |
1c6fa20f | 372 | */ |
d752b12b | 373 | int srd_run_decoder(struct srd_decoder *dec, |
2b45dd71 | 374 | uint8_t *inbuf, uint64_t inbuflen, |
375 | uint8_t **outbuf, uint64_t *outbuflen) | |
1c6fa20f | 376 | { |
5c55017c | 377 | PyObject *py_mod, *py_func, *py_args, *py_value, *py_res; |
036e6f67 | 378 | int r, ret; |
9d29ffad KS |
379 | |
380 | /* FIXME: Don't have a timebase available here. Make one up. */ | |
381 | static int _timehack = 0; | |
382 | _timehack += inbuflen; | |
1c6fa20f UH |
383 | |
384 | /* TODO: Use #defines for the return codes. */ | |
385 | ||
386 | /* Return an error upon unusable input. */ | |
5c55017c | 387 | if (dec == NULL) |
d752b12b | 388 | return SRD_ERR_ARGS; /* TODO: More specific error? */ |
1c6fa20f | 389 | if (inbuf == NULL) |
d752b12b | 390 | return SRD_ERR_ARGS; /* TODO: More specific error? */ |
1c6fa20f | 391 | if (inbuflen == 0) /* No point in working on empty buffers. */ |
d752b12b | 392 | return SRD_ERR_ARGS; /* TODO: More specific error? */ |
1c6fa20f | 393 | if (outbuf == NULL) |
d752b12b | 394 | return SRD_ERR_ARGS; /* TODO: More specific error? */ |
1c6fa20f | 395 | if (outbuflen == NULL) |
d752b12b | 396 | return SRD_ERR_ARGS; /* TODO: More specific error? */ |
922763ab | 397 | |
5c55017c UH |
398 | /* TODO: Error handling. */ |
399 | py_mod = dec->py_mod; | |
2557ad9d | 400 | Py_XINCREF(py_mod); |
922763ab | 401 | py_func = dec->py_decodefunc; |
2557ad9d | 402 | Py_XINCREF(py_func); |
1c6fa20f UH |
403 | |
404 | /* Create a Python tuple of size 1. */ | |
6b08da24 | 405 | if (!(py_args = PyTuple_New(1))) { /* NEWREF */ |
d752b12b | 406 | ret = SRD_ERR_PYTHON; /* TODO: More specific error? */ |
036e6f67 | 407 | goto err_run_decref_func; |
1c6fa20f UH |
408 | } |
409 | ||
9d29ffad KS |
410 | /* Get the input buffer as Python "string" (byte array). */ |
411 | /* TODO: int vs. uint64_t for 'inbuflen'? */ | |
412 | ||
413 | py_value = Py_BuildValue("{sisiss#}", | |
414 | "time", _timehack, | |
415 | "duration", 10, | |
416 | "data", inbuf, inbuflen / _unitsize | |
417 | ); | |
418 | ||
419 | /* | |
420 | * IMPORTANT: PyTuple_SetItem() "steals" a reference to py_value! | |
421 | * That means we are no longer responsible for Py_XDECREF()'ing it. | |
422 | * It will automatically be free'd when the 'py_args' tuple is free'd. | |
423 | */ | |
424 | if (PyTuple_SetItem(py_args, 0, py_value) != 0) { /* STEAL */ | |
425 | ret = SRD_ERR_PYTHON; /* TODO: More specific error? */ | |
426 | Py_XDECREF(py_value); /* TODO: Ref. stolen upon error? */ | |
427 | goto err_run_decref_args; | |
1c6fa20f | 428 | } |
9d29ffad KS |
429 | |
430 | if (!(py_res = PyObject_CallObject(py_func, py_args))) { /* NEWREF */ | |
431 | ret = SRD_ERR_PYTHON; /* TODO: More specific error? */ | |
432 | goto err_run_decref_args; | |
433 | } | |
434 | ||
1c6fa20f | 435 | |
d752b12b | 436 | ret = SRD_OK; |
036e6f67 | 437 | |
2557ad9d | 438 | Py_XDECREF(py_res); |
036e6f67 UH |
439 | |
440 | err_run_decref_args: | |
2557ad9d | 441 | Py_XDECREF(py_args); |
036e6f67 | 442 | err_run_decref_func: |
2557ad9d | 443 | Py_XDECREF(py_func); |
2557ad9d | 444 | Py_XDECREF(py_mod); |
1c6fa20f | 445 | |
036e6f67 UH |
446 | if (PyErr_Occurred()) |
447 | PyErr_Print(); /* Returns void. */ | |
448 | ||
449 | return ret; | |
1c6fa20f UH |
450 | } |
451 | ||
f9b54a6c UH |
452 | /** |
453 | * TODO | |
454 | */ | |
d752b12b | 455 | static int srd_unload_decoder(struct srd_decoder *dec) |
f9b54a6c UH |
456 | { |
457 | g_free(dec->id); | |
458 | g_free(dec->name); | |
459 | g_free(dec->desc); | |
460 | g_free(dec->func); | |
461 | ||
462 | /* TODO: Free everything in inputformats and outputformats. */ | |
463 | ||
464 | if (dec->inputformats != NULL) | |
465 | g_slist_free(dec->inputformats); | |
466 | if (dec->outputformats != NULL) | |
467 | g_slist_free(dec->outputformats); | |
468 | ||
922763ab | 469 | Py_XDECREF(dec->py_decodefunc); |
f9b54a6c UH |
470 | Py_XDECREF(dec->py_mod); |
471 | ||
d752b12b | 472 | return SRD_OK; |
f9b54a6c UH |
473 | } |
474 | ||
475 | /** | |
476 | * TODO | |
477 | */ | |
d752b12b | 478 | static int srd_unload_all_decoders(void) |
f9b54a6c UH |
479 | { |
480 | GSList *l; | |
d752b12b | 481 | struct srd_decoder *dec; |
f9b54a6c | 482 | |
d752b12b | 483 | for (l = srd_list_decoders(); l; l = l->next) { |
f9b54a6c UH |
484 | dec = l->data; |
485 | /* TODO: Error handling. */ | |
d752b12b | 486 | srd_unload_decoder(dec); |
f9b54a6c UH |
487 | } |
488 | ||
d752b12b | 489 | return SRD_OK; |
f9b54a6c UH |
490 | } |
491 | ||
1c6fa20f UH |
492 | /** |
493 | * Shutdown libsigrokdecode. | |
494 | * | |
d752b12b | 495 | * @return SRD_OK upon success, a (negative) error code otherwise. |
1c6fa20f | 496 | */ |
7ea73e33 | 497 | int srd_exit(void) |
1c6fa20f | 498 | { |
f9b54a6c UH |
499 | /* Unload/free all decoders, and then the list of decoders itself. */ |
500 | /* TODO: Error handling. */ | |
d752b12b | 501 | srd_unload_all_decoders(); |
f9b54a6c UH |
502 | g_slist_free(list_pds); |
503 | ||
1c6fa20f UH |
504 | /* Py_Finalize() returns void, any finalization errors are ignored. */ |
505 | Py_Finalize(); | |
506 | ||
d752b12b | 507 | return SRD_OK; |
1c6fa20f | 508 | } |