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a1bb33af | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
a1bb33af | 3 | * |
c73d2ea4 | 4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> |
a1bb33af UH |
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 | ||
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <unistd.h> | |
23 | #include <string.h> | |
544a4582 | 24 | #include <glib.h> |
45c59c8b BV |
25 | #include "libsigrok.h" |
26 | #include "libsigrok-internal.h" | |
aa4b1107 | 27 | |
2ad1deb8 | 28 | /** @cond PRIVATE */ |
3544f848 | 29 | #define LOG_PREFIX "session" |
2ad1deb8 | 30 | /** @endcond */ |
a421dc1d | 31 | |
393fb9cb UH |
32 | /** |
33 | * @file | |
34 | * | |
35 | * Creating, using, or destroying libsigrok sessions. | |
36 | */ | |
37 | ||
7b870c38 UH |
38 | /** |
39 | * @defgroup grp_session Session handling | |
40 | * | |
41 | * Creating, using, or destroying libsigrok sessions. | |
42 | * | |
43 | * @{ | |
44 | */ | |
45 | ||
544a4582 | 46 | struct source { |
544a4582 | 47 | int timeout; |
144f6660 | 48 | sr_receive_data_callback cb; |
1f9813eb | 49 | void *cb_data; |
aac0ea25 LPC |
50 | |
51 | /* This is used to keep track of the object (fd, pollfd or channel) which is | |
52 | * being polled and will be used to match the source when removing it again. | |
53 | */ | |
54 | gintptr poll_object; | |
544a4582 BV |
55 | }; |
56 | ||
2726474a | 57 | struct datafeed_callback { |
144f6660 | 58 | sr_datafeed_callback cb; |
2726474a ML |
59 | void *cb_data; |
60 | }; | |
61 | ||
9f45fb3a UH |
62 | /** |
63 | * Create a new session. | |
7efe889e | 64 | * |
61e6e2da | 65 | * @param ctx The context in which to create the new session. |
7efe889e UH |
66 | * @param new_session This will contain a pointer to the newly created |
67 | * session if the return value is SR_OK, otherwise the value | |
68 | * is undefined and should not be used. Must not be NULL. | |
9f45fb3a | 69 | * |
0812c40e | 70 | * @retval SR_OK Success. |
41de54ff | 71 | * @retval SR_ERR_ARG Invalid argument. |
47117241 | 72 | * |
0812c40e | 73 | * @since 0.4.0 |
9f45fb3a | 74 | */ |
61e6e2da ML |
75 | SR_API int sr_session_new(struct sr_context *ctx, |
76 | struct sr_session **new_session) | |
a1bb33af | 77 | { |
3337e9a1 | 78 | struct sr_session *session; |
a1bb33af | 79 | |
41de54ff UH |
80 | if (!new_session) |
81 | return SR_ERR_ARG; | |
82 | ||
3337e9a1 | 83 | session = g_malloc0(sizeof(struct sr_session)); |
b7e94111 | 84 | |
3337e9a1 BV |
85 | session->source_timeout = -1; |
86 | session->running = FALSE; | |
87 | session->abort_session = FALSE; | |
88 | g_mutex_init(&session->stop_mutex); | |
0812c40e | 89 | |
3337e9a1 | 90 | *new_session = session; |
0812c40e ML |
91 | |
92 | return SR_OK; | |
a1bb33af UH |
93 | } |
94 | ||
9f45fb3a | 95 | /** |
0812c40e | 96 | * Destroy a session. |
9f45fb3a UH |
97 | * This frees up all memory used by the session. |
98 | * | |
7efe889e UH |
99 | * @param session The session to destroy. Must not be NULL. |
100 | * | |
04cb9157 | 101 | * @retval SR_OK Success. |
0812c40e | 102 | * @retval SR_ERR_ARG Invalid session passed. |
47117241 | 103 | * |
0812c40e | 104 | * @since 0.4.0 |
9f45fb3a | 105 | */ |
0812c40e | 106 | SR_API int sr_session_destroy(struct sr_session *session) |
a1bb33af | 107 | { |
9f45fb3a | 108 | if (!session) { |
a421dc1d | 109 | sr_err("%s: session was NULL", __func__); |
0812c40e | 110 | return SR_ERR_ARG; |
9f45fb3a UH |
111 | } |
112 | ||
0812c40e | 113 | sr_session_dev_remove_all(session); |
33c6e4c5 | 114 | g_mutex_clear(&session->stop_mutex); |
3d68b612 BV |
115 | if (session->trigger) |
116 | sr_trigger_free(session->trigger); | |
33c6e4c5 | 117 | |
1de3cced ML |
118 | g_slist_free_full(session->owned_devs, (GDestroyNotify)sr_dev_inst_free); |
119 | ||
a1bb33af | 120 | g_free(session); |
0812c40e | 121 | |
e0508e67 | 122 | return SR_OK; |
a1bb33af UH |
123 | } |
124 | ||
9f45fb3a | 125 | /** |
0812c40e | 126 | * Remove all the devices from a session. |
9f45fb3a UH |
127 | * |
128 | * The session itself (i.e., the struct sr_session) is not free'd and still | |
129 | * exists after this function returns. | |
130 | * | |
7efe889e UH |
131 | * @param session The session to use. Must not be NULL. |
132 | * | |
04cb9157 | 133 | * @retval SR_OK Success. |
0812c40e | 134 | * @retval SR_ERR_BUG Invalid session passed. |
47117241 | 135 | * |
0812c40e | 136 | * @since 0.4.0 |
9f45fb3a | 137 | */ |
0812c40e | 138 | SR_API int sr_session_dev_remove_all(struct sr_session *session) |
a1bb33af | 139 | { |
0812c40e ML |
140 | struct sr_dev_inst *sdi; |
141 | GSList *l; | |
142 | ||
9f45fb3a | 143 | if (!session) { |
a421dc1d | 144 | sr_err("%s: session was NULL", __func__); |
0812c40e ML |
145 | return SR_ERR_ARG; |
146 | } | |
147 | ||
148 | for (l = session->devs; l; l = l->next) { | |
149 | sdi = (struct sr_dev_inst *) l->data; | |
150 | sdi->session = NULL; | |
9f45fb3a UH |
151 | } |
152 | ||
681803df | 153 | g_slist_free(session->devs); |
bb7ef793 | 154 | session->devs = NULL; |
e0508e67 UH |
155 | |
156 | return SR_OK; | |
a1bb33af UH |
157 | } |
158 | ||
9f45fb3a | 159 | /** |
0812c40e | 160 | * Add a device instance to a session. |
9f45fb3a | 161 | * |
7efe889e | 162 | * @param session The session to add to. Must not be NULL. |
0812c40e | 163 | * @param sdi The device instance to add to a session. Must not |
de4d3f99 BV |
164 | * be NULL. Also, sdi->driver and sdi->driver->dev_open must |
165 | * not be NULL. | |
9f45fb3a | 166 | * |
04cb9157 MH |
167 | * @retval SR_OK Success. |
168 | * @retval SR_ERR_ARG Invalid argument. | |
47117241 | 169 | * |
0812c40e | 170 | * @since 0.4.0 |
9f45fb3a | 171 | */ |
0812c40e ML |
172 | SR_API int sr_session_dev_add(struct sr_session *session, |
173 | struct sr_dev_inst *sdi) | |
a1bb33af | 174 | { |
5451816f | 175 | int ret; |
a1bb33af | 176 | |
de4d3f99 | 177 | if (!sdi) { |
a421dc1d | 178 | sr_err("%s: sdi was NULL", __func__); |
9f45fb3a UH |
179 | return SR_ERR_ARG; |
180 | } | |
181 | ||
d6eb0c33 | 182 | if (!session) { |
a421dc1d | 183 | sr_err("%s: session was NULL", __func__); |
0812c40e ML |
184 | return SR_ERR_ARG; |
185 | } | |
186 | ||
187 | /* If sdi->session is not NULL, the device is already in this or | |
188 | * another session. */ | |
189 | if (sdi->session) { | |
190 | sr_err("%s: already assigned to session", __func__); | |
191 | return SR_ERR_ARG; | |
d6eb0c33 UH |
192 | } |
193 | ||
de4d3f99 BV |
194 | /* If sdi->driver is NULL, this is a virtual device. */ |
195 | if (!sdi->driver) { | |
d6eb0c33 | 196 | /* Just add the device, don't run dev_open(). */ |
de4d3f99 | 197 | session->devs = g_slist_append(session->devs, (gpointer)sdi); |
0812c40e | 198 | sdi->session = session; |
d6eb0c33 | 199 | return SR_OK; |
9f45fb3a UH |
200 | } |
201 | ||
de4d3f99 BV |
202 | /* sdi->driver is non-NULL (i.e. we have a real device). */ |
203 | if (!sdi->driver->dev_open) { | |
a421dc1d | 204 | sr_err("%s: sdi->driver->dev_open was NULL", __func__); |
8ec95d22 | 205 | return SR_ERR_BUG; |
9f45fb3a UH |
206 | } |
207 | ||
de4d3f99 | 208 | session->devs = g_slist_append(session->devs, (gpointer)sdi); |
0812c40e | 209 | sdi->session = session; |
aa4b1107 | 210 | |
5451816f | 211 | if (session->running) { |
32b7cd4f DE |
212 | /* Adding a device to a running session. Commit settings |
213 | * and start acquisition on that device now. */ | |
214 | if ((ret = sr_config_commit(sdi)) != SR_OK) { | |
215 | sr_err("Failed to commit device settings before " | |
216 | "starting acquisition in running session (%s)", | |
217 | sr_strerror(ret)); | |
218 | return ret; | |
219 | } | |
5451816f | 220 | if ((ret = sdi->driver->dev_acquisition_start(sdi, |
32b7cd4f | 221 | (void *)sdi)) != SR_OK) { |
5451816f | 222 | sr_err("Failed to start acquisition of device in " |
32b7cd4f DE |
223 | "running session (%s)", sr_strerror(ret)); |
224 | return ret; | |
225 | } | |
5451816f BV |
226 | } |
227 | ||
e46b8fb1 | 228 | return SR_OK; |
a1bb33af UH |
229 | } |
230 | ||
2bb311b4 | 231 | /** |
0812c40e | 232 | * List all device instances attached to a session. |
2bb311b4 | 233 | * |
7efe889e | 234 | * @param session The session to use. Must not be NULL. |
2bb311b4 BV |
235 | * @param devlist A pointer where the device instance list will be |
236 | * stored on return. If no devices are in the session, | |
237 | * this will be NULL. Each element in the list points | |
238 | * to a struct sr_dev_inst *. | |
239 | * The list must be freed by the caller, but not the | |
240 | * elements pointed to. | |
241 | * | |
04cb9157 | 242 | * @retval SR_OK Success. |
0812c40e | 243 | * @retval SR_ERR_ARG Invalid argument. |
47117241 | 244 | * |
0812c40e | 245 | * @since 0.4.0 |
2bb311b4 | 246 | */ |
0812c40e | 247 | SR_API int sr_session_dev_list(struct sr_session *session, GSList **devlist) |
2bb311b4 | 248 | { |
2bb311b4 | 249 | if (!session) |
0812c40e ML |
250 | return SR_ERR_ARG; |
251 | ||
252 | if (!devlist) | |
253 | return SR_ERR_ARG; | |
2bb311b4 BV |
254 | |
255 | *devlist = g_slist_copy(session->devs); | |
256 | ||
257 | return SR_OK; | |
258 | } | |
259 | ||
9f45fb3a | 260 | /** |
0812c40e | 261 | * Remove all datafeed callbacks in a session. |
9f45fb3a | 262 | * |
7efe889e UH |
263 | * @param session The session to use. Must not be NULL. |
264 | * | |
04cb9157 | 265 | * @retval SR_OK Success. |
0812c40e | 266 | * @retval SR_ERR_ARG Invalid session passed. |
47117241 | 267 | * |
0812c40e | 268 | * @since 0.4.0 |
9f45fb3a | 269 | */ |
0812c40e | 270 | SR_API int sr_session_datafeed_callback_remove_all(struct sr_session *session) |
a1bb33af | 271 | { |
9f45fb3a | 272 | if (!session) { |
a421dc1d | 273 | sr_err("%s: session was NULL", __func__); |
0812c40e | 274 | return SR_ERR_ARG; |
9f45fb3a UH |
275 | } |
276 | ||
2726474a | 277 | g_slist_free_full(session->datafeed_callbacks, g_free); |
a1bb33af | 278 | session->datafeed_callbacks = NULL; |
e0508e67 UH |
279 | |
280 | return SR_OK; | |
a1bb33af UH |
281 | } |
282 | ||
9f45fb3a | 283 | /** |
0812c40e | 284 | * Add a datafeed callback to a session. |
9f45fb3a | 285 | * |
7efe889e | 286 | * @param session The session to use. Must not be NULL. |
d08490aa | 287 | * @param cb Function to call when a chunk of data is received. |
0abee507 | 288 | * Must not be NULL. |
85222791 | 289 | * @param cb_data Opaque pointer passed in by the caller. |
a1645fcd | 290 | * |
04cb9157 MH |
291 | * @retval SR_OK Success. |
292 | * @retval SR_ERR_BUG No session exists. | |
47117241 UH |
293 | * |
294 | * @since 0.3.0 | |
9f45fb3a | 295 | */ |
0812c40e ML |
296 | SR_API int sr_session_datafeed_callback_add(struct sr_session *session, |
297 | sr_datafeed_callback cb, void *cb_data) | |
a1bb33af | 298 | { |
2726474a ML |
299 | struct datafeed_callback *cb_struct; |
300 | ||
9f45fb3a | 301 | if (!session) { |
a421dc1d | 302 | sr_err("%s: session was NULL", __func__); |
e0508e67 | 303 | return SR_ERR_BUG; |
9f45fb3a UH |
304 | } |
305 | ||
0abee507 | 306 | if (!cb) { |
a421dc1d | 307 | sr_err("%s: cb was NULL", __func__); |
0abee507 UH |
308 | return SR_ERR_ARG; |
309 | } | |
9f45fb3a | 310 | |
91219afc | 311 | cb_struct = g_malloc0(sizeof(struct datafeed_callback)); |
2726474a ML |
312 | cb_struct->cb = cb; |
313 | cb_struct->cb_data = cb_data; | |
314 | ||
62c82025 | 315 | session->datafeed_callbacks = |
2726474a | 316 | g_slist_append(session->datafeed_callbacks, cb_struct); |
e0508e67 UH |
317 | |
318 | return SR_OK; | |
a1bb33af UH |
319 | } |
320 | ||
9f42e2e6 UH |
321 | /** |
322 | * Get the trigger assigned to this session. | |
323 | * | |
324 | * @param session The session to use. | |
325 | * | |
326 | * @retval NULL Invalid (NULL) session was passed to the function. | |
327 | * @retval other The trigger assigned to this session (can be NULL). | |
328 | * | |
329 | * @since 0.4.0 | |
330 | */ | |
0812c40e | 331 | SR_API struct sr_trigger *sr_session_trigger_get(struct sr_session *session) |
7b5e6d29 | 332 | { |
9f42e2e6 UH |
333 | if (!session) |
334 | return NULL; | |
335 | ||
7b5e6d29 BV |
336 | return session->trigger; |
337 | } | |
338 | ||
9f42e2e6 UH |
339 | /** |
340 | * Set the trigger of this session. | |
341 | * | |
342 | * @param session The session to use. Must not be NULL. | |
343 | * @param trig The trigger to assign to this session. Can be NULL. | |
344 | * | |
345 | * @retval SR_OK Success. | |
346 | * @retval SR_ERR_ARG Invalid argument. | |
347 | * | |
348 | * @since 0.4.0 | |
349 | */ | |
0812c40e | 350 | SR_API int sr_session_trigger_set(struct sr_session *session, struct sr_trigger *trig) |
7b5e6d29 | 351 | { |
9f42e2e6 UH |
352 | if (!session) |
353 | return SR_ERR_ARG; | |
354 | ||
7b5e6d29 BV |
355 | session->trigger = trig; |
356 | ||
357 | return SR_OK; | |
358 | } | |
359 | ||
b483be74 | 360 | /** |
0812c40e | 361 | * Call every device in the current session's callback. |
b483be74 BV |
362 | * |
363 | * For sessions not driven by select loops such as sr_session_run(), | |
364 | * but driven by another scheduler, this can be used to poll the devices | |
365 | * from within that scheduler. | |
366 | * | |
7efe889e | 367 | * @param session The session to use. Must not be NULL. |
f6eb2cb5 BV |
368 | * @param block If TRUE, this call will wait for any of the session's |
369 | * sources to fire an event on the file descriptors, or | |
370 | * any of their timeouts to activate. In other words, this | |
371 | * can be used as a select loop. | |
372 | * If FALSE, all sources have their callback run, regardless | |
373 | * of file descriptor or timeout status. | |
374 | * | |
04cb9157 | 375 | * @retval SR_OK Success. |
f3f19d11 | 376 | * @retval SR_ERR Error occurred. |
b483be74 | 377 | */ |
3337e9a1 | 378 | static int sr_session_iteration(struct sr_session *session, gboolean block) |
544a4582 | 379 | { |
b7e94111 LPC |
380 | unsigned int i; |
381 | int ret; | |
544a4582 | 382 | |
b483be74 BV |
383 | ret = g_poll(session->pollfds, session->num_sources, |
384 | block ? session->source_timeout : 0); | |
385 | for (i = 0; i < session->num_sources; i++) { | |
386 | if (session->pollfds[i].revents > 0 || (ret == 0 | |
387 | && session->source_timeout == session->sources[i].timeout)) { | |
33c6e4c5 | 388 | /* |
b483be74 BV |
389 | * Invoke the source's callback on an event, |
390 | * or if the poll timed out and this source | |
391 | * asked for that timeout. | |
33c6e4c5 | 392 | */ |
b483be74 BV |
393 | if (!session->sources[i].cb(session->pollfds[i].fd, |
394 | session->pollfds[i].revents, | |
395 | session->sources[i].cb_data)) | |
0812c40e ML |
396 | sr_session_source_remove(session, |
397 | session->sources[i].poll_object); | |
b483be74 BV |
398 | } |
399 | /* | |
400 | * We want to take as little time as possible to stop | |
401 | * the session if we have been told to do so. Therefore, | |
402 | * we check the flag after processing every source, not | |
403 | * just once per main event loop. | |
404 | */ | |
405 | g_mutex_lock(&session->stop_mutex); | |
406 | if (session->abort_session) { | |
0812c40e | 407 | sr_session_stop_sync(session); |
b483be74 BV |
408 | /* But once is enough. */ |
409 | session->abort_session = FALSE; | |
544a4582 | 410 | } |
b483be74 | 411 | g_mutex_unlock(&session->stop_mutex); |
544a4582 | 412 | } |
e0508e67 UH |
413 | |
414 | return SR_OK; | |
544a4582 BV |
415 | } |
416 | ||
7b5e6d29 BV |
417 | static int verify_trigger(struct sr_trigger *trigger) |
418 | { | |
419 | struct sr_trigger_stage *stage; | |
420 | struct sr_trigger_match *match; | |
421 | GSList *l, *m; | |
422 | ||
423 | if (!trigger->stages) { | |
424 | sr_err("No trigger stages defined."); | |
425 | return SR_ERR; | |
426 | } | |
427 | ||
428 | sr_spew("Checking trigger:"); | |
429 | for (l = trigger->stages; l; l = l->next) { | |
430 | stage = l->data; | |
431 | if (!stage->matches) { | |
432 | sr_err("Stage %d has no matches defined.", stage->stage); | |
433 | return SR_ERR; | |
434 | } | |
435 | for (m = stage->matches; m; m = m->next) { | |
436 | match = m->data; | |
437 | if (!match->channel) { | |
438 | sr_err("Stage %d match has no channel.", stage->stage); | |
439 | return SR_ERR; | |
440 | } | |
441 | if (!match->match) { | |
442 | sr_err("Stage %d match is not defined.", stage->stage); | |
443 | return SR_ERR; | |
444 | } | |
445 | sr_spew("Stage %d match on channel %s, match %d", stage->stage, | |
446 | match->channel->name, match->match); | |
447 | } | |
448 | } | |
449 | ||
450 | return SR_OK; | |
451 | } | |
1beccaed | 452 | |
9f45fb3a UH |
453 | /** |
454 | * Start a session. | |
455 | * | |
7efe889e UH |
456 | * @param session The session to use. Must not be NULL. |
457 | * | |
04cb9157 | 458 | * @retval SR_OK Success. |
0812c40e | 459 | * @retval SR_ERR_ARG Invalid session passed. |
47117241 | 460 | * |
0812c40e | 461 | * @since 0.4.0 |
9f45fb3a | 462 | */ |
0812c40e | 463 | SR_API int sr_session_start(struct sr_session *session) |
7d658874 | 464 | { |
de4d3f99 | 465 | struct sr_dev_inst *sdi; |
013ec84b BV |
466 | struct sr_channel *ch; |
467 | GSList *l, *c; | |
468 | int enabled_channels, ret; | |
7d658874 | 469 | |
9f45fb3a | 470 | if (!session) { |
0812c40e ML |
471 | sr_err("%s: session was NULL", __func__); |
472 | return SR_ERR_ARG; | |
9f45fb3a UH |
473 | } |
474 | ||
bb7ef793 | 475 | if (!session->devs) { |
a421dc1d | 476 | sr_err("%s: session->devs was NULL; a session " |
9f45fb3a | 477 | "cannot be started without devices.", __func__); |
0812c40e | 478 | return SR_ERR_ARG; |
9f45fb3a UH |
479 | } |
480 | ||
7b5e6d29 BV |
481 | if (session->trigger && verify_trigger(session->trigger) != SR_OK) |
482 | return SR_ERR; | |
483 | ||
c7142604 | 484 | sr_info("Starting."); |
9f45fb3a | 485 | |
b7c3e849 | 486 | ret = SR_OK; |
bb7ef793 | 487 | for (l = session->devs; l; l = l->next) { |
de4d3f99 | 488 | sdi = l->data; |
013ec84b BV |
489 | enabled_channels = 0; |
490 | for (c = sdi->channels; c; c = c->next) { | |
491 | ch = c->data; | |
492 | if (ch->enabled) { | |
493 | enabled_channels++; | |
494 | break; | |
495 | } | |
496 | } | |
497 | if (enabled_channels == 0) { | |
498 | ret = SR_ERR; | |
1b9e567b SA |
499 | sr_err("%s using connection %s has no enabled channels!", |
500 | sdi->driver->name, sdi->connection_id); | |
013ec84b BV |
501 | break; |
502 | } | |
503 | ||
32b7cd4f DE |
504 | if ((ret = sr_config_commit(sdi)) != SR_OK) { |
505 | sr_err("Failed to commit device settings before " | |
506 | "starting acquisition (%s)", sr_strerror(ret)); | |
507 | break; | |
508 | } | |
de4d3f99 | 509 | if ((ret = sdi->driver->dev_acquisition_start(sdi, sdi)) != SR_OK) { |
a421dc1d | 510 | sr_err("%s: could not start an acquisition " |
568dcacc | 511 | "(%s)", __func__, sr_strerror(ret)); |
7d658874 | 512 | break; |
9f45fb3a | 513 | } |
7d658874 BV |
514 | } |
515 | ||
9f45fb3a UH |
516 | /* TODO: What if there are multiple devices? Which return code? */ |
517 | ||
7d658874 BV |
518 | return ret; |
519 | } | |
520 | ||
9f45fb3a | 521 | /** |
0812c40e | 522 | * Run a session. |
9f45fb3a | 523 | * |
7efe889e UH |
524 | * @param session The session to use. Must not be NULL. |
525 | * | |
04cb9157 | 526 | * @retval SR_OK Success. |
0812c40e | 527 | * @retval SR_ERR_ARG Invalid session passed. |
47117241 | 528 | * |
0812c40e | 529 | * @since 0.4.0 |
9f45fb3a | 530 | */ |
0812c40e | 531 | SR_API int sr_session_run(struct sr_session *session) |
7d658874 | 532 | { |
9f45fb3a | 533 | if (!session) { |
0812c40e ML |
534 | sr_err("%s: session was NULL", __func__); |
535 | return SR_ERR_ARG; | |
9f45fb3a UH |
536 | } |
537 | ||
bb7ef793 | 538 | if (!session->devs) { |
9f45fb3a | 539 | /* TODO: Actually the case? */ |
a421dc1d | 540 | sr_err("%s: session->devs was NULL; a session " |
9f45fb3a | 541 | "cannot be run without devices.", __func__); |
0812c40e | 542 | return SR_ERR_ARG; |
9f45fb3a | 543 | } |
5451816f | 544 | session->running = TRUE; |
9f45fb3a | 545 | |
a421dc1d | 546 | sr_info("Running."); |
7d658874 | 547 | |
9f45fb3a | 548 | /* Do we have real sources? */ |
b7e94111 | 549 | if (session->num_sources == 1 && session->pollfds[0].fd == -1) { |
9f45fb3a | 550 | /* Dummy source, freewheel over it. */ |
2cbeb2b7 | 551 | while (session->num_sources) |
b7e94111 | 552 | session->sources[0].cb(-1, 0, session->sources[0].cb_data); |
9f45fb3a UH |
553 | } else { |
554 | /* Real sources, use g_poll() main loop. */ | |
b483be74 | 555 | while (session->num_sources) |
3337e9a1 | 556 | sr_session_iteration(session, TRUE); |
9f45fb3a UH |
557 | } |
558 | ||
e0508e67 | 559 | return SR_OK; |
7d658874 BV |
560 | } |
561 | ||
9f45fb3a | 562 | /** |
0812c40e | 563 | * Stop a session. |
9f45fb3a | 564 | * |
0812c40e ML |
565 | * The session is stopped immediately, with all acquisition sessions stopped |
566 | * and hardware drivers cleaned up. | |
9f45fb3a | 567 | * |
33c6e4c5 AG |
568 | * This must be called from within the session thread, to prevent freeing |
569 | * resources that the session thread will try to use. | |
570 | * | |
7efe889e UH |
571 | * @param session The session to use. Must not be NULL. |
572 | * | |
04cb9157 | 573 | * @retval SR_OK Success. |
0812c40e | 574 | * @retval SR_ERR_ARG Invalid session passed. |
72a08bcc BV |
575 | * |
576 | * @private | |
9f45fb3a | 577 | */ |
0812c40e | 578 | SR_PRIV int sr_session_stop_sync(struct sr_session *session) |
a1bb33af | 579 | { |
de4d3f99 | 580 | struct sr_dev_inst *sdi; |
a1bb33af UH |
581 | GSList *l; |
582 | ||
9f45fb3a | 583 | if (!session) { |
a421dc1d | 584 | sr_err("%s: session was NULL", __func__); |
0812c40e | 585 | return SR_ERR_ARG; |
9f45fb3a UH |
586 | } |
587 | ||
a421dc1d | 588 | sr_info("Stopping."); |
e0508e67 | 589 | |
bb7ef793 | 590 | for (l = session->devs; l; l = l->next) { |
de4d3f99 BV |
591 | sdi = l->data; |
592 | if (sdi->driver) { | |
593 | if (sdi->driver->dev_acquisition_stop) | |
594 | sdi->driver->dev_acquisition_stop(sdi, sdi); | |
8c76be53 | 595 | } |
a1bb33af | 596 | } |
5451816f | 597 | session->running = FALSE; |
9f45fb3a | 598 | |
e0508e67 | 599 | return SR_OK; |
a1bb33af UH |
600 | } |
601 | ||
33c6e4c5 | 602 | /** |
0812c40e | 603 | * Stop a session. |
33c6e4c5 | 604 | * |
0812c40e ML |
605 | * The session is stopped immediately, with all acquisition sessions being |
606 | * stopped and hardware drivers cleaned up. | |
33c6e4c5 AG |
607 | * |
608 | * If the session is run in a separate thread, this function will not block | |
609 | * until the session is finished executing. It is the caller's responsibility | |
610 | * to wait for the session thread to return before assuming that the session is | |
611 | * completely decommissioned. | |
612 | * | |
7efe889e UH |
613 | * @param session The session to use. Must not be NULL. |
614 | * | |
04cb9157 | 615 | * @retval SR_OK Success. |
0812c40e | 616 | * @retval SR_ERR_ARG Invalid session passed. |
47117241 | 617 | * |
0812c40e | 618 | * @since 0.4.0 |
33c6e4c5 | 619 | */ |
0812c40e | 620 | SR_API int sr_session_stop(struct sr_session *session) |
33c6e4c5 AG |
621 | { |
622 | if (!session) { | |
623 | sr_err("%s: session was NULL", __func__); | |
624 | return SR_ERR_BUG; | |
625 | } | |
626 | ||
627 | g_mutex_lock(&session->stop_mutex); | |
628 | session->abort_session = TRUE; | |
629 | g_mutex_unlock(&session->stop_mutex); | |
630 | ||
631 | return SR_OK; | |
632 | } | |
633 | ||
9f45fb3a | 634 | /** |
a1645fcd | 635 | * Debug helper. |
9f45fb3a | 636 | * |
996b0c72 | 637 | * @param packet The packet to show debugging information for. |
9f45fb3a | 638 | */ |
bf53457d | 639 | static void datafeed_dump(const struct sr_datafeed_packet *packet) |
7d2afd6c | 640 | { |
bf53457d JH |
641 | const struct sr_datafeed_logic *logic; |
642 | const struct sr_datafeed_analog *analog; | |
1954dfa9 | 643 | const struct sr_datafeed_analog2 *analog2; |
7d2afd6c BV |
644 | |
645 | switch (packet->type) { | |
646 | case SR_DF_HEADER: | |
a421dc1d | 647 | sr_dbg("bus: Received SR_DF_HEADER packet."); |
7d2afd6c BV |
648 | break; |
649 | case SR_DF_TRIGGER: | |
a421dc1d | 650 | sr_dbg("bus: Received SR_DF_TRIGGER packet."); |
7d2afd6c | 651 | break; |
c71bac3b | 652 | case SR_DF_META: |
a421dc1d | 653 | sr_dbg("bus: Received SR_DF_META packet."); |
ee7489d2 | 654 | break; |
7d2afd6c BV |
655 | case SR_DF_LOGIC: |
656 | logic = packet->payload; | |
7ea45862 UH |
657 | sr_dbg("bus: Received SR_DF_LOGIC packet (%" PRIu64 " bytes, " |
658 | "unitsize = %d).", logic->length, logic->unitsize); | |
7d2afd6c | 659 | break; |
ee7489d2 BV |
660 | case SR_DF_ANALOG: |
661 | analog = packet->payload; | |
a421dc1d UH |
662 | sr_dbg("bus: Received SR_DF_ANALOG packet (%d samples).", |
663 | analog->num_samples); | |
ee7489d2 | 664 | break; |
1954dfa9 BV |
665 | case SR_DF_ANALOG2: |
666 | analog2 = packet->payload; | |
667 | sr_dbg("bus: Received SR_DF_ANALOG2 packet (%d samples).", | |
668 | analog2->num_samples); | |
669 | break; | |
7d2afd6c | 670 | case SR_DF_END: |
a421dc1d | 671 | sr_dbg("bus: Received SR_DF_END packet."); |
7d2afd6c | 672 | break; |
6ea7669c | 673 | case SR_DF_FRAME_BEGIN: |
a421dc1d | 674 | sr_dbg("bus: Received SR_DF_FRAME_BEGIN packet."); |
6ea7669c BV |
675 | break; |
676 | case SR_DF_FRAME_END: | |
a421dc1d | 677 | sr_dbg("bus: Received SR_DF_FRAME_END packet."); |
6ea7669c | 678 | break; |
7d2afd6c | 679 | default: |
a421dc1d | 680 | sr_dbg("bus: Received unknown packet type: %d.", packet->type); |
9f45fb3a | 681 | break; |
7d2afd6c | 682 | } |
7d2afd6c BV |
683 | } |
684 | ||
9f45fb3a | 685 | /** |
a1645fcd BV |
686 | * Send a packet to whatever is listening on the datafeed bus. |
687 | * | |
688 | * Hardware drivers use this to send a data packet to the frontend. | |
9f45fb3a | 689 | * |
6b2d8d3e | 690 | * @param sdi TODO. |
31ccebc4 | 691 | * @param packet The datafeed packet to send to the session bus. |
44dae539 | 692 | * |
04cb9157 MH |
693 | * @retval SR_OK Success. |
694 | * @retval SR_ERR_ARG Invalid argument. | |
b4bd7088 UH |
695 | * |
696 | * @private | |
9f45fb3a | 697 | */ |
de4d3f99 | 698 | SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi, |
8143cfdc | 699 | const struct sr_datafeed_packet *packet) |
a1bb33af UH |
700 | { |
701 | GSList *l; | |
2726474a | 702 | struct datafeed_callback *cb_struct; |
c0a1e532 UH |
703 | struct sr_datafeed_packet *packet_in, *packet_out; |
704 | struct sr_transform *t; | |
705 | int ret; | |
a1bb33af | 706 | |
de4d3f99 | 707 | if (!sdi) { |
a421dc1d | 708 | sr_err("%s: sdi was NULL", __func__); |
e0508e67 | 709 | return SR_ERR_ARG; |
9f45fb3a UH |
710 | } |
711 | ||
e0508e67 | 712 | if (!packet) { |
a421dc1d | 713 | sr_err("%s: packet was NULL", __func__); |
e0508e67 | 714 | return SR_ERR_ARG; |
9f45fb3a UH |
715 | } |
716 | ||
79f92686 BV |
717 | if (!sdi->session) { |
718 | sr_err("%s: session was NULL", __func__); | |
719 | return SR_ERR_BUG; | |
720 | } | |
721 | ||
c0a1e532 UH |
722 | /* |
723 | * Pass the packet to the first transform module. If that returns | |
724 | * another packet (instead of NULL), pass that packet to the next | |
725 | * transform module in the list, and so on. | |
726 | */ | |
727 | packet_in = (struct sr_datafeed_packet *)packet; | |
728 | for (l = sdi->session->transforms; l; l = l->next) { | |
729 | t = l->data; | |
730 | sr_spew("Running transform module '%s'.", t->module->id); | |
731 | ret = t->module->receive(t, packet_in, &packet_out); | |
732 | if (ret < 0) { | |
733 | sr_err("Error while running transform module: %d.", ret); | |
734 | return SR_ERR; | |
735 | } | |
736 | if (!packet_out) { | |
737 | /* | |
738 | * If any of the transforms don't return an output | |
739 | * packet, abort. | |
740 | */ | |
741 | sr_spew("Transform module didn't return a packet, aborting."); | |
742 | return SR_OK; | |
743 | } else { | |
744 | /* | |
745 | * Use this transform module's output packet as input | |
746 | * for the next transform module. | |
747 | */ | |
748 | packet_in = packet_out; | |
749 | } | |
750 | } | |
751 | ||
752 | /* | |
753 | * If the last transform did output a packet, pass it to all datafeed | |
754 | * callbacks. | |
755 | */ | |
3337e9a1 | 756 | for (l = sdi->session->datafeed_callbacks; l; l = l->next) { |
18beaeff BV |
757 | if (sr_log_loglevel_get() >= SR_LOG_DBG) |
758 | datafeed_dump(packet); | |
2726474a ML |
759 | cb_struct = l->data; |
760 | cb_struct->cb(sdi, packet, cb_struct->cb_data); | |
a1bb33af | 761 | } |
9f45fb3a | 762 | |
e0508e67 | 763 | return SR_OK; |
a1bb33af UH |
764 | } |
765 | ||
6b2d8d3e UH |
766 | /** |
767 | * Add an event source for a file descriptor. | |
768 | * | |
7efe889e | 769 | * @param session The session to use. Must not be NULL. |
6b2d8d3e | 770 | * @param pollfd The GPollFD. |
04cb9157 MH |
771 | * @param[in] timeout Max time to wait before the callback is called, |
772 | * ignored if 0. | |
6b2d8d3e UH |
773 | * @param cb Callback function to add. Must not be NULL. |
774 | * @param cb_data Data for the callback function. Can be NULL. | |
775 | * @param poll_object TODO. | |
776 | * | |
04cb9157 MH |
777 | * @retval SR_OK Success. |
778 | * @retval SR_ERR_ARG Invalid argument. | |
6b2d8d3e | 779 | */ |
102f1239 BV |
780 | static int _sr_session_source_add(struct sr_session *session, GPollFD *pollfd, |
781 | int timeout, sr_receive_data_callback cb, void *cb_data, gintptr poll_object) | |
544a4582 BV |
782 | { |
783 | struct source *new_sources, *s; | |
aac0ea25 | 784 | GPollFD *new_pollfds; |
544a4582 | 785 | |
d08490aa | 786 | if (!cb) { |
a421dc1d | 787 | sr_err("%s: cb was NULL", __func__); |
e0508e67 | 788 | return SR_ERR_ARG; |
9f45fb3a UH |
789 | } |
790 | ||
1f9813eb | 791 | /* Note: cb_data can be NULL, that's not a bug. */ |
9f45fb3a | 792 | |
91219afc | 793 | new_pollfds = g_realloc(session->pollfds, |
2ac2e629 | 794 | sizeof(GPollFD) * (session->num_sources + 1)); |
91219afc | 795 | new_sources = g_realloc(session->sources, sizeof(struct source) * |
2ac2e629 | 796 | (session->num_sources + 1)); |
544a4582 | 797 | |
b7e94111 LPC |
798 | new_pollfds[session->num_sources] = *pollfd; |
799 | s = &new_sources[session->num_sources++]; | |
544a4582 | 800 | s->timeout = timeout; |
d08490aa | 801 | s->cb = cb; |
1f9813eb | 802 | s->cb_data = cb_data; |
aac0ea25 | 803 | s->poll_object = poll_object; |
b7e94111 LPC |
804 | session->pollfds = new_pollfds; |
805 | session->sources = new_sources; | |
544a4582 | 806 | |
b7e94111 LPC |
807 | if (timeout != session->source_timeout && timeout > 0 |
808 | && (session->source_timeout == -1 || timeout < session->source_timeout)) | |
809 | session->source_timeout = timeout; | |
9f45fb3a | 810 | |
e0508e67 | 811 | return SR_OK; |
544a4582 BV |
812 | } |
813 | ||
9f45fb3a | 814 | /** |
6b2d8d3e | 815 | * Add an event source for a file descriptor. |
9f45fb3a | 816 | * |
7efe889e | 817 | * @param session The session to use. Must not be NULL. |
aac0ea25 LPC |
818 | * @param fd The file descriptor. |
819 | * @param events Events to check for. | |
820 | * @param timeout Max time to wait before the callback is called, ignored if 0. | |
821 | * @param cb Callback function to add. Must not be NULL. | |
822 | * @param cb_data Data for the callback function. Can be NULL. | |
9f45fb3a | 823 | * |
04cb9157 MH |
824 | * @retval SR_OK Success. |
825 | * @retval SR_ERR_ARG Invalid argument. | |
47117241 UH |
826 | * |
827 | * @since 0.3.0 | |
aac0ea25 | 828 | */ |
0812c40e ML |
829 | SR_API int sr_session_source_add(struct sr_session *session, int fd, |
830 | int events, int timeout, sr_receive_data_callback cb, void *cb_data) | |
aac0ea25 LPC |
831 | { |
832 | GPollFD p; | |
833 | ||
aac0ea25 LPC |
834 | p.fd = fd; |
835 | p.events = events; | |
aac0ea25 | 836 | |
102f1239 | 837 | return _sr_session_source_add(session, &p, timeout, cb, cb_data, (gintptr)fd); |
aac0ea25 LPC |
838 | } |
839 | ||
840 | /** | |
1a895c61 | 841 | * Add an event source for a GPollFD. |
aac0ea25 | 842 | * |
7efe889e | 843 | * @param session The session to use. Must not be NULL. |
aac0ea25 LPC |
844 | * @param pollfd The GPollFD. |
845 | * @param timeout Max time to wait before the callback is called, ignored if 0. | |
846 | * @param cb Callback function to add. Must not be NULL. | |
847 | * @param cb_data Data for the callback function. Can be NULL. | |
44dae539 | 848 | * |
04cb9157 MH |
849 | * @retval SR_OK Success. |
850 | * @retval SR_ERR_ARG Invalid argument. | |
47117241 UH |
851 | * |
852 | * @since 0.3.0 | |
9f45fb3a | 853 | */ |
0812c40e ML |
854 | SR_API int sr_session_source_add_pollfd(struct sr_session *session, |
855 | GPollFD *pollfd, int timeout, sr_receive_data_callback cb, | |
856 | void *cb_data) | |
aac0ea25 | 857 | { |
102f1239 | 858 | return _sr_session_source_add(session, pollfd, timeout, cb, |
8143cfdc | 859 | cb_data, (gintptr)pollfd); |
aac0ea25 LPC |
860 | } |
861 | ||
862 | /** | |
1a895c61 | 863 | * Add an event source for a GIOChannel. |
aac0ea25 | 864 | * |
7efe889e | 865 | * @param session The session to use. Must not be NULL. |
aac0ea25 LPC |
866 | * @param channel The GIOChannel. |
867 | * @param events Events to poll on. | |
868 | * @param timeout Max time to wait before the callback is called, ignored if 0. | |
869 | * @param cb Callback function to add. Must not be NULL. | |
870 | * @param cb_data Data for the callback function. Can be NULL. | |
871 | * | |
04cb9157 MH |
872 | * @retval SR_OK Success. |
873 | * @retval SR_ERR_ARG Invalid argument. | |
47117241 UH |
874 | * |
875 | * @since 0.3.0 | |
aac0ea25 | 876 | */ |
0812c40e ML |
877 | SR_API int sr_session_source_add_channel(struct sr_session *session, |
878 | GIOChannel *channel, int events, int timeout, | |
879 | sr_receive_data_callback cb, void *cb_data) | |
aac0ea25 LPC |
880 | { |
881 | GPollFD p; | |
882 | ||
883 | #ifdef _WIN32 | |
6b2d8d3e | 884 | g_io_channel_win32_make_pollfd(channel, events, &p); |
aac0ea25 LPC |
885 | #else |
886 | p.fd = g_io_channel_unix_get_fd(channel); | |
887 | p.events = events; | |
888 | #endif | |
889 | ||
102f1239 | 890 | return _sr_session_source_add(session, &p, timeout, cb, cb_data, (gintptr)channel); |
aac0ea25 LPC |
891 | } |
892 | ||
6b2d8d3e UH |
893 | /** |
894 | * Remove the source belonging to the specified channel. | |
895 | * | |
7efe889e | 896 | * @param session The session to use. Must not be NULL. |
04cb9157 | 897 | * @param poll_object The channel for which the source should be removed. |
6b2d8d3e | 898 | * |
04cb9157 MH |
899 | * @retval SR_OK Success |
900 | * @retval SR_ERR_ARG Invalid arguments | |
04cb9157 | 901 | * @retval SR_ERR_BUG Internal error |
6b2d8d3e | 902 | */ |
102f1239 | 903 | static int _sr_session_source_remove(struct sr_session *session, gintptr poll_object) |
544a4582 | 904 | { |
b7e94111 | 905 | unsigned int old; |
544a4582 | 906 | |
b7e94111 | 907 | if (!session->sources || !session->num_sources) { |
a421dc1d | 908 | sr_err("%s: sources was NULL", __func__); |
0abee507 | 909 | return SR_ERR_BUG; |
e0508e67 UH |
910 | } |
911 | ||
b7e94111 LPC |
912 | for (old = 0; old < session->num_sources; old++) { |
913 | if (session->sources[old].poll_object == poll_object) | |
2bccd322 | 914 | break; |
9f45fb3a UH |
915 | } |
916 | ||
2bccd322 | 917 | /* fd not found, nothing to do */ |
b7e94111 | 918 | if (old == session->num_sources) |
2bccd322 LPC |
919 | return SR_OK; |
920 | ||
91219afc | 921 | session->num_sources--; |
2bccd322 | 922 | |
b7e94111 | 923 | if (old != session->num_sources) { |
91219afc | 924 | memmove(&session->pollfds[old], &session->pollfds[old + 1], |
b7e94111 | 925 | (session->num_sources - old) * sizeof(GPollFD)); |
91219afc | 926 | memmove(&session->sources[old], &session->sources[old + 1], |
b7e94111 | 927 | (session->num_sources - old) * sizeof(struct source)); |
9f45fb3a | 928 | } |
544a4582 | 929 | |
91219afc UH |
930 | session->pollfds = g_realloc(session->pollfds, sizeof(GPollFD) * session->num_sources); |
931 | session->sources = g_realloc(session->sources, sizeof(struct source) * session->num_sources); | |
2bccd322 | 932 | |
e0508e67 | 933 | return SR_OK; |
544a4582 | 934 | } |
aac0ea25 | 935 | |
6b2d8d3e | 936 | /** |
aac0ea25 LPC |
937 | * Remove the source belonging to the specified file descriptor. |
938 | * | |
7efe889e | 939 | * @param session The session to use. Must not be NULL. |
1a895c61 | 940 | * @param fd The file descriptor for which the source should be removed. |
aac0ea25 | 941 | * |
04cb9157 MH |
942 | * @retval SR_OK Success |
943 | * @retval SR_ERR_ARG Invalid argument | |
04cb9157 | 944 | * @retval SR_ERR_BUG Internal error. |
47117241 UH |
945 | * |
946 | * @since 0.3.0 | |
aac0ea25 | 947 | */ |
0812c40e | 948 | SR_API int sr_session_source_remove(struct sr_session *session, int fd) |
aac0ea25 | 949 | { |
102f1239 | 950 | return _sr_session_source_remove(session, (gintptr)fd); |
aac0ea25 LPC |
951 | } |
952 | ||
953 | /** | |
954 | * Remove the source belonging to the specified poll descriptor. | |
955 | * | |
7efe889e | 956 | * @param session The session to use. Must not be NULL. |
aac0ea25 LPC |
957 | * @param pollfd The poll descriptor for which the source should be removed. |
958 | * | |
959 | * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or | |
960 | * SR_ERR_MALLOC upon memory allocation errors, SR_ERR_BUG upon | |
961 | * internal errors. | |
47117241 UH |
962 | * |
963 | * @since 0.2.0 | |
aac0ea25 | 964 | */ |
0812c40e ML |
965 | SR_API int sr_session_source_remove_pollfd(struct sr_session *session, |
966 | GPollFD *pollfd) | |
aac0ea25 | 967 | { |
102f1239 | 968 | return _sr_session_source_remove(session, (gintptr)pollfd); |
aac0ea25 LPC |
969 | } |
970 | ||
6b2d8d3e | 971 | /** |
aac0ea25 LPC |
972 | * Remove the source belonging to the specified channel. |
973 | * | |
7efe889e | 974 | * @param session The session to use. Must not be NULL. |
1a895c61 | 975 | * @param channel The channel for which the source should be removed. |
aac0ea25 | 976 | * |
04cb9157 MH |
977 | * @retval SR_OK Success. |
978 | * @retval SR_ERR_ARG Invalid argument. | |
04cb9157 | 979 | * @return SR_ERR_BUG Internal error. |
47117241 UH |
980 | * |
981 | * @since 0.2.0 | |
aac0ea25 | 982 | */ |
0812c40e ML |
983 | SR_API int sr_session_source_remove_channel(struct sr_session *session, |
984 | GIOChannel *channel) | |
aac0ea25 | 985 | { |
102f1239 | 986 | return _sr_session_source_remove(session, (gintptr)channel); |
aac0ea25 | 987 | } |
7b870c38 | 988 | |
ee29d92e | 989 | static void copy_src(struct sr_config *src, struct sr_datafeed_meta *meta_copy) |
8143cfdc | 990 | { |
8143cfdc | 991 | g_variant_ref(src->data); |
ee29d92e AJ |
992 | meta_copy->config = g_slist_append(meta_copy->config, |
993 | g_memdup(src, sizeof(struct sr_config))); | |
8143cfdc BV |
994 | } |
995 | ||
996 | SR_PRIV int sr_packet_copy(const struct sr_datafeed_packet *packet, | |
997 | struct sr_datafeed_packet **copy) | |
998 | { | |
999 | const struct sr_datafeed_meta *meta; | |
1000 | struct sr_datafeed_meta *meta_copy; | |
1001 | const struct sr_datafeed_logic *logic; | |
1002 | struct sr_datafeed_logic *logic_copy; | |
1003 | const struct sr_datafeed_analog *analog; | |
1004 | struct sr_datafeed_analog *analog_copy; | |
1005 | uint8_t *payload; | |
1006 | ||
1007 | *copy = g_malloc0(sizeof(struct sr_datafeed_packet)); | |
1008 | (*copy)->type = packet->type; | |
1009 | ||
1010 | switch (packet->type) { | |
1011 | case SR_DF_TRIGGER: | |
1012 | case SR_DF_END: | |
1013 | /* No payload. */ | |
1014 | break; | |
1015 | case SR_DF_HEADER: | |
1016 | payload = g_malloc(sizeof(struct sr_datafeed_header)); | |
1017 | memcpy(payload, packet->payload, sizeof(struct sr_datafeed_header)); | |
1018 | (*copy)->payload = payload; | |
1019 | break; | |
1020 | case SR_DF_META: | |
1021 | meta = packet->payload; | |
ee29d92e AJ |
1022 | meta_copy = g_malloc0(sizeof(struct sr_datafeed_meta)); |
1023 | g_slist_foreach(meta->config, (GFunc)copy_src, meta_copy->config); | |
8143cfdc BV |
1024 | (*copy)->payload = meta_copy; |
1025 | break; | |
1026 | case SR_DF_LOGIC: | |
1027 | logic = packet->payload; | |
1028 | logic_copy = g_malloc(sizeof(logic)); | |
1029 | logic_copy->length = logic->length; | |
1030 | logic_copy->unitsize = logic->unitsize; | |
1031 | memcpy(logic_copy->data, logic->data, logic->length * logic->unitsize); | |
1032 | (*copy)->payload = logic_copy; | |
1033 | break; | |
1034 | case SR_DF_ANALOG: | |
1035 | analog = packet->payload; | |
1036 | analog_copy = g_malloc(sizeof(analog)); | |
1037 | analog_copy->channels = g_slist_copy(analog->channels); | |
1038 | analog_copy->num_samples = analog->num_samples; | |
1039 | analog_copy->mq = analog->mq; | |
1040 | analog_copy->unit = analog->unit; | |
1041 | analog_copy->mqflags = analog->mqflags; | |
1042 | memcpy(analog_copy->data, analog->data, | |
1043 | analog->num_samples * sizeof(float)); | |
1044 | (*copy)->payload = analog_copy; | |
1045 | break; | |
1046 | default: | |
1047 | sr_err("Unknown packet type %d", packet->type); | |
1048 | return SR_ERR; | |
1049 | } | |
1050 | ||
1051 | return SR_OK; | |
1052 | } | |
1053 | ||
1054 | void sr_packet_free(struct sr_datafeed_packet *packet) | |
1055 | { | |
1056 | const struct sr_datafeed_meta *meta; | |
1057 | const struct sr_datafeed_logic *logic; | |
1058 | const struct sr_datafeed_analog *analog; | |
1059 | struct sr_config *src; | |
1060 | GSList *l; | |
1061 | ||
1062 | switch (packet->type) { | |
1063 | case SR_DF_TRIGGER: | |
1064 | case SR_DF_END: | |
1065 | /* No payload. */ | |
1066 | break; | |
1067 | case SR_DF_HEADER: | |
1068 | /* Payload is a simple struct. */ | |
1069 | g_free((void *)packet->payload); | |
1070 | break; | |
1071 | case SR_DF_META: | |
1072 | meta = packet->payload; | |
1073 | for (l = meta->config; l; l = l->next) { | |
1074 | src = l->data; | |
1075 | g_variant_unref(src->data); | |
1076 | g_free(src); | |
1077 | } | |
1078 | g_slist_free(meta->config); | |
1079 | g_free((void *)packet->payload); | |
1080 | break; | |
1081 | case SR_DF_LOGIC: | |
1082 | logic = packet->payload; | |
1083 | g_free(logic->data); | |
1084 | g_free((void *)packet->payload); | |
1085 | break; | |
1086 | case SR_DF_ANALOG: | |
1087 | analog = packet->payload; | |
1088 | g_slist_free(analog->channels); | |
1089 | g_free(analog->data); | |
1090 | g_free((void *)packet->payload); | |
1091 | break; | |
1092 | default: | |
1093 | sr_err("Unknown packet type %d", packet->type); | |
1094 | } | |
1095 | g_free(packet); | |
1096 | ||
1097 | } | |
1098 | ||
7b870c38 | 1099 | /** @} */ |