2 * This file is part of the libsigrok project.
4 * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
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.
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.
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/>.
25 #include "libsigrok.h"
26 #include "libsigrok-internal.h"
29 #define LOG_PREFIX "session"
35 * Creating, using, or destroying libsigrok sessions.
39 * @defgroup grp_session Session handling
41 * Creating, using, or destroying libsigrok sessions.
48 sr_receive_data_callback cb;
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.
57 struct datafeed_callback {
58 sr_datafeed_callback cb;
63 * Create a new session.
65 * @param new_session This will contain a pointer to the newly created
66 * session if the return value is SR_OK, otherwise the value
67 * is undefined and should not be used. Must not be NULL.
69 * @retval SR_OK Success.
70 * @retval SR_ERR_ARG Invalid argument.
74 SR_API int sr_session_new(struct sr_session **new_session)
76 struct sr_session *session;
81 session = g_malloc0(sizeof(struct sr_session));
83 session->source_timeout = -1;
84 session->running = FALSE;
85 session->abort_session = FALSE;
86 g_mutex_init(&session->stop_mutex);
88 *new_session = session;
95 * This frees up all memory used by the session.
97 * @param session The session to destroy. Must not be NULL.
99 * @retval SR_OK Success.
100 * @retval SR_ERR_ARG Invalid session passed.
104 SR_API int sr_session_destroy(struct sr_session *session)
107 sr_err("%s: session was NULL", __func__);
111 sr_session_dev_remove_all(session);
112 g_mutex_clear(&session->stop_mutex);
113 if (session->trigger)
114 sr_trigger_free(session->trigger);
116 g_slist_free_full(session->owned_devs, (GDestroyNotify)sr_dev_inst_free);
124 * Remove all the devices from a session.
126 * The session itself (i.e., the struct sr_session) is not free'd and still
127 * exists after this function returns.
129 * @param session The session to use. Must not be NULL.
131 * @retval SR_OK Success.
132 * @retval SR_ERR_BUG Invalid session passed.
136 SR_API int sr_session_dev_remove_all(struct sr_session *session)
138 struct sr_dev_inst *sdi;
142 sr_err("%s: session was NULL", __func__);
146 for (l = session->devs; l; l = l->next) {
147 sdi = (struct sr_dev_inst *) l->data;
151 g_slist_free(session->devs);
152 session->devs = NULL;
158 * Add a device instance to a session.
160 * @param session The session to add to. Must not be NULL.
161 * @param sdi The device instance to add to a session. Must not
162 * be NULL. Also, sdi->driver and sdi->driver->dev_open must
165 * @retval SR_OK Success.
166 * @retval SR_ERR_ARG Invalid argument.
170 SR_API int sr_session_dev_add(struct sr_session *session,
171 struct sr_dev_inst *sdi)
176 sr_err("%s: sdi was NULL", __func__);
181 sr_err("%s: session was NULL", __func__);
185 /* If sdi->session is not NULL, the device is already in this or
186 * another session. */
188 sr_err("%s: already assigned to session", __func__);
192 /* If sdi->driver is NULL, this is a virtual device. */
194 /* Just add the device, don't run dev_open(). */
195 session->devs = g_slist_append(session->devs, (gpointer)sdi);
196 sdi->session = session;
200 /* sdi->driver is non-NULL (i.e. we have a real device). */
201 if (!sdi->driver->dev_open) {
202 sr_err("%s: sdi->driver->dev_open was NULL", __func__);
206 session->devs = g_slist_append(session->devs, (gpointer)sdi);
207 sdi->session = session;
209 if (session->running) {
210 /* Adding a device to a running session. Commit settings
211 * and start acquisition on that device now. */
212 if ((ret = sr_config_commit(sdi)) != SR_OK) {
213 sr_err("Failed to commit device settings before "
214 "starting acquisition in running session (%s)",
218 if ((ret = sdi->driver->dev_acquisition_start(sdi,
219 (void *)sdi)) != SR_OK) {
220 sr_err("Failed to start acquisition of device in "
221 "running session (%s)", sr_strerror(ret));
230 * List all device instances attached to a session.
232 * @param session The session to use. Must not be NULL.
233 * @param devlist A pointer where the device instance list will be
234 * stored on return. If no devices are in the session,
235 * this will be NULL. Each element in the list points
236 * to a struct sr_dev_inst *.
237 * The list must be freed by the caller, but not the
238 * elements pointed to.
240 * @retval SR_OK Success.
241 * @retval SR_ERR_ARG Invalid argument.
245 SR_API int sr_session_dev_list(struct sr_session *session, GSList **devlist)
253 *devlist = g_slist_copy(session->devs);
259 * Remove all datafeed callbacks in a session.
261 * @param session The session to use. Must not be NULL.
263 * @retval SR_OK Success.
264 * @retval SR_ERR_ARG Invalid session passed.
268 SR_API int sr_session_datafeed_callback_remove_all(struct sr_session *session)
271 sr_err("%s: session was NULL", __func__);
275 g_slist_free_full(session->datafeed_callbacks, g_free);
276 session->datafeed_callbacks = NULL;
282 * Add a datafeed callback to a session.
284 * @param session The session to use. Must not be NULL.
285 * @param cb Function to call when a chunk of data is received.
287 * @param cb_data Opaque pointer passed in by the caller.
289 * @retval SR_OK Success.
290 * @retval SR_ERR_BUG No session exists.
294 SR_API int sr_session_datafeed_callback_add(struct sr_session *session,
295 sr_datafeed_callback cb, void *cb_data)
297 struct datafeed_callback *cb_struct;
300 sr_err("%s: session was NULL", __func__);
305 sr_err("%s: cb was NULL", __func__);
309 if (!(cb_struct = g_try_malloc0(sizeof(struct datafeed_callback))))
310 return SR_ERR_MALLOC;
313 cb_struct->cb_data = cb_data;
315 session->datafeed_callbacks =
316 g_slist_append(session->datafeed_callbacks, cb_struct);
321 SR_API struct sr_trigger *sr_session_trigger_get(struct sr_session *session)
323 return session->trigger;
326 SR_API int sr_session_trigger_set(struct sr_session *session, struct sr_trigger *trig)
328 session->trigger = trig;
334 * Call every device in the current session's callback.
336 * For sessions not driven by select loops such as sr_session_run(),
337 * but driven by another scheduler, this can be used to poll the devices
338 * from within that scheduler.
340 * @param session The session to use. Must not be NULL.
341 * @param block If TRUE, this call will wait for any of the session's
342 * sources to fire an event on the file descriptors, or
343 * any of their timeouts to activate. In other words, this
344 * can be used as a select loop.
345 * If FALSE, all sources have their callback run, regardless
346 * of file descriptor or timeout status.
348 * @retval SR_OK Success.
349 * @retval SR_ERR Error occured.
351 static int sr_session_iteration(struct sr_session *session, gboolean block)
356 ret = g_poll(session->pollfds, session->num_sources,
357 block ? session->source_timeout : 0);
358 for (i = 0; i < session->num_sources; i++) {
359 if (session->pollfds[i].revents > 0 || (ret == 0
360 && session->source_timeout == session->sources[i].timeout)) {
362 * Invoke the source's callback on an event,
363 * or if the poll timed out and this source
364 * asked for that timeout.
366 if (!session->sources[i].cb(session->pollfds[i].fd,
367 session->pollfds[i].revents,
368 session->sources[i].cb_data))
369 sr_session_source_remove(session,
370 session->sources[i].poll_object);
373 * We want to take as little time as possible to stop
374 * the session if we have been told to do so. Therefore,
375 * we check the flag after processing every source, not
376 * just once per main event loop.
378 g_mutex_lock(&session->stop_mutex);
379 if (session->abort_session) {
380 sr_session_stop_sync(session);
381 /* But once is enough. */
382 session->abort_session = FALSE;
384 g_mutex_unlock(&session->stop_mutex);
391 static int verify_trigger(struct sr_trigger *trigger)
393 struct sr_trigger_stage *stage;
394 struct sr_trigger_match *match;
397 if (!trigger->stages) {
398 sr_err("No trigger stages defined.");
402 sr_spew("Checking trigger:");
403 for (l = trigger->stages; l; l = l->next) {
405 if (!stage->matches) {
406 sr_err("Stage %d has no matches defined.", stage->stage);
409 for (m = stage->matches; m; m = m->next) {
411 if (!match->channel) {
412 sr_err("Stage %d match has no channel.", stage->stage);
416 sr_err("Stage %d match is not defined.", stage->stage);
419 sr_spew("Stage %d match on channel %s, match %d", stage->stage,
420 match->channel->name, match->match);
429 * @param session The session to use. Must not be NULL.
431 * @retval SR_OK Success.
432 * @retval SR_ERR_ARG Invalid session passed.
436 SR_API int sr_session_start(struct sr_session *session)
438 struct sr_dev_inst *sdi;
439 struct sr_channel *ch;
441 int enabled_channels, ret;
444 sr_err("%s: session was NULL", __func__);
448 if (!session->devs) {
449 sr_err("%s: session->devs was NULL; a session "
450 "cannot be started without devices.", __func__);
454 if (session->trigger && verify_trigger(session->trigger) != SR_OK)
457 sr_info("Starting.");
460 for (l = session->devs; l; l = l->next) {
462 enabled_channels = 0;
463 for (c = sdi->channels; c; c = c->next) {
470 if (enabled_channels == 0) {
472 sr_err("%s using connection %s has no enabled channels!",
473 sdi->driver->name, sdi->connection_id);
477 if ((ret = sr_config_commit(sdi)) != SR_OK) {
478 sr_err("Failed to commit device settings before "
479 "starting acquisition (%s)", sr_strerror(ret));
482 if ((ret = sdi->driver->dev_acquisition_start(sdi, sdi)) != SR_OK) {
483 sr_err("%s: could not start an acquisition "
484 "(%s)", __func__, sr_strerror(ret));
489 /* TODO: What if there are multiple devices? Which return code? */
497 * @param session The session to use. Must not be NULL.
499 * @retval SR_OK Success.
500 * @retval SR_ERR_ARG Invalid session passed.
504 SR_API int sr_session_run(struct sr_session *session)
507 sr_err("%s: session was NULL", __func__);
511 if (!session->devs) {
512 /* TODO: Actually the case? */
513 sr_err("%s: session->devs was NULL; a session "
514 "cannot be run without devices.", __func__);
517 session->running = TRUE;
521 /* Do we have real sources? */
522 if (session->num_sources == 1 && session->pollfds[0].fd == -1) {
523 /* Dummy source, freewheel over it. */
524 while (session->num_sources)
525 session->sources[0].cb(-1, 0, session->sources[0].cb_data);
527 /* Real sources, use g_poll() main loop. */
528 while (session->num_sources)
529 sr_session_iteration(session, TRUE);
538 * The session is stopped immediately, with all acquisition sessions stopped
539 * and hardware drivers cleaned up.
541 * This must be called from within the session thread, to prevent freeing
542 * resources that the session thread will try to use.
544 * @param session The session to use. Must not be NULL.
546 * @retval SR_OK Success.
547 * @retval SR_ERR_ARG Invalid session passed.
551 SR_PRIV int sr_session_stop_sync(struct sr_session *session)
553 struct sr_dev_inst *sdi;
557 sr_err("%s: session was NULL", __func__);
561 sr_info("Stopping.");
563 for (l = session->devs; l; l = l->next) {
566 if (sdi->driver->dev_acquisition_stop)
567 sdi->driver->dev_acquisition_stop(sdi, sdi);
570 session->running = FALSE;
578 * The session is stopped immediately, with all acquisition sessions being
579 * stopped and hardware drivers cleaned up.
581 * If the session is run in a separate thread, this function will not block
582 * until the session is finished executing. It is the caller's responsibility
583 * to wait for the session thread to return before assuming that the session is
584 * completely decommissioned.
586 * @param session The session to use. Must not be NULL.
588 * @retval SR_OK Success.
589 * @retval SR_ERR_ARG Invalid session passed.
593 SR_API int sr_session_stop(struct sr_session *session)
596 sr_err("%s: session was NULL", __func__);
600 g_mutex_lock(&session->stop_mutex);
601 session->abort_session = TRUE;
602 g_mutex_unlock(&session->stop_mutex);
610 * @param packet The packet to show debugging information for.
612 static void datafeed_dump(const struct sr_datafeed_packet *packet)
614 const struct sr_datafeed_logic *logic;
615 const struct sr_datafeed_analog *analog;
617 switch (packet->type) {
619 sr_dbg("bus: Received SR_DF_HEADER packet.");
622 sr_dbg("bus: Received SR_DF_TRIGGER packet.");
625 sr_dbg("bus: Received SR_DF_META packet.");
628 logic = packet->payload;
629 sr_dbg("bus: Received SR_DF_LOGIC packet (%" PRIu64 " bytes, "
630 "unitsize = %d).", logic->length, logic->unitsize);
633 analog = packet->payload;
634 sr_dbg("bus: Received SR_DF_ANALOG packet (%d samples).",
635 analog->num_samples);
638 sr_dbg("bus: Received SR_DF_END packet.");
640 case SR_DF_FRAME_BEGIN:
641 sr_dbg("bus: Received SR_DF_FRAME_BEGIN packet.");
643 case SR_DF_FRAME_END:
644 sr_dbg("bus: Received SR_DF_FRAME_END packet.");
647 sr_dbg("bus: Received unknown packet type: %d.", packet->type);
653 * Send a packet to whatever is listening on the datafeed bus.
655 * Hardware drivers use this to send a data packet to the frontend.
658 * @param packet The datafeed packet to send to the session bus.
660 * @retval SR_OK Success.
661 * @retval SR_ERR_ARG Invalid argument.
665 SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
666 const struct sr_datafeed_packet *packet)
669 struct datafeed_callback *cb_struct;
672 sr_err("%s: sdi was NULL", __func__);
677 sr_err("%s: packet was NULL", __func__);
682 sr_err("%s: session was NULL", __func__);
686 for (l = sdi->session->datafeed_callbacks; l; l = l->next) {
687 if (sr_log_loglevel_get() >= SR_LOG_DBG)
688 datafeed_dump(packet);
690 cb_struct->cb(sdi, packet, cb_struct->cb_data);
697 * Add an event source for a file descriptor.
699 * @param session The session to use. Must not be NULL.
700 * @param pollfd The GPollFD.
701 * @param[in] timeout Max time to wait before the callback is called,
703 * @param cb Callback function to add. Must not be NULL.
704 * @param cb_data Data for the callback function. Can be NULL.
705 * @param poll_object TODO.
707 * @retval SR_OK Success.
708 * @retval SR_ERR_ARG Invalid argument.
709 * @retval SR_ERR_MALLOC Memory allocation error.
711 static int _sr_session_source_add(struct sr_session *session, GPollFD *pollfd,
712 int timeout, sr_receive_data_callback cb, void *cb_data, gintptr poll_object)
714 struct source *new_sources, *s;
715 GPollFD *new_pollfds;
718 sr_err("%s: cb was NULL", __func__);
722 /* Note: cb_data can be NULL, that's not a bug. */
724 new_pollfds = g_try_realloc(session->pollfds,
725 sizeof(GPollFD) * (session->num_sources + 1));
727 sr_err("%s: new_pollfds malloc failed", __func__);
728 return SR_ERR_MALLOC;
731 new_sources = g_try_realloc(session->sources, sizeof(struct source) *
732 (session->num_sources + 1));
734 sr_err("%s: new_sources malloc failed", __func__);
735 return SR_ERR_MALLOC;
738 new_pollfds[session->num_sources] = *pollfd;
739 s = &new_sources[session->num_sources++];
740 s->timeout = timeout;
742 s->cb_data = cb_data;
743 s->poll_object = poll_object;
744 session->pollfds = new_pollfds;
745 session->sources = new_sources;
747 if (timeout != session->source_timeout && timeout > 0
748 && (session->source_timeout == -1 || timeout < session->source_timeout))
749 session->source_timeout = timeout;
755 * Add an event source for a file descriptor.
757 * @param session The session to use. Must not be NULL.
758 * @param fd The file descriptor.
759 * @param events Events to check for.
760 * @param timeout Max time to wait before the callback is called, ignored if 0.
761 * @param cb Callback function to add. Must not be NULL.
762 * @param cb_data Data for the callback function. Can be NULL.
764 * @retval SR_OK Success.
765 * @retval SR_ERR_ARG Invalid argument.
766 * @retval SR_ERR_MALLOC Memory allocation error.
770 SR_API int sr_session_source_add(struct sr_session *session, int fd,
771 int events, int timeout, sr_receive_data_callback cb, void *cb_data)
778 return _sr_session_source_add(session, &p, timeout, cb, cb_data, (gintptr)fd);
782 * Add an event source for a GPollFD.
784 * @param session The session to use. Must not be NULL.
785 * @param pollfd The GPollFD.
786 * @param timeout Max time to wait before the callback is called, ignored if 0.
787 * @param cb Callback function to add. Must not be NULL.
788 * @param cb_data Data for the callback function. Can be NULL.
790 * @retval SR_OK Success.
791 * @retval SR_ERR_ARG Invalid argument.
792 * @retval SR_ERR_MALLOC Memory allocation error.
796 SR_API int sr_session_source_add_pollfd(struct sr_session *session,
797 GPollFD *pollfd, int timeout, sr_receive_data_callback cb,
800 return _sr_session_source_add(session, pollfd, timeout, cb,
801 cb_data, (gintptr)pollfd);
805 * Add an event source for a GIOChannel.
807 * @param session The session to use. Must not be NULL.
808 * @param channel The GIOChannel.
809 * @param events Events to poll on.
810 * @param timeout Max time to wait before the callback is called, ignored if 0.
811 * @param cb Callback function to add. Must not be NULL.
812 * @param cb_data Data for the callback function. Can be NULL.
814 * @retval SR_OK Success.
815 * @retval SR_ERR_ARG Invalid argument.
816 * @retval SR_ERR_MALLOC Memory allocation error.
820 SR_API int sr_session_source_add_channel(struct sr_session *session,
821 GIOChannel *channel, int events, int timeout,
822 sr_receive_data_callback cb, void *cb_data)
827 g_io_channel_win32_make_pollfd(channel, events, &p);
829 p.fd = g_io_channel_unix_get_fd(channel);
833 return _sr_session_source_add(session, &p, timeout, cb, cb_data, (gintptr)channel);
837 * Remove the source belonging to the specified channel.
839 * @todo Add more error checks and logging.
841 * @param session The session to use. Must not be NULL.
842 * @param poll_object The channel for which the source should be removed.
844 * @retval SR_OK Success
845 * @retval SR_ERR_ARG Invalid arguments
846 * @retval SR_ERR_MALLOC Memory allocation error
847 * @retval SR_ERR_BUG Internal error
849 static int _sr_session_source_remove(struct sr_session *session, gintptr poll_object)
851 struct source *new_sources;
852 GPollFD *new_pollfds;
855 if (!session->sources || !session->num_sources) {
856 sr_err("%s: sources was NULL", __func__);
860 for (old = 0; old < session->num_sources; old++) {
861 if (session->sources[old].poll_object == poll_object)
865 /* fd not found, nothing to do */
866 if (old == session->num_sources)
869 session->num_sources -= 1;
871 if (old != session->num_sources) {
872 memmove(&session->pollfds[old], &session->pollfds[old+1],
873 (session->num_sources - old) * sizeof(GPollFD));
874 memmove(&session->sources[old], &session->sources[old+1],
875 (session->num_sources - old) * sizeof(struct source));
878 new_pollfds = g_try_realloc(session->pollfds, sizeof(GPollFD) * session->num_sources);
879 if (!new_pollfds && session->num_sources > 0) {
880 sr_err("%s: new_pollfds malloc failed", __func__);
881 return SR_ERR_MALLOC;
884 new_sources = g_try_realloc(session->sources, sizeof(struct source) * session->num_sources);
885 if (!new_sources && session->num_sources > 0) {
886 sr_err("%s: new_sources malloc failed", __func__);
887 return SR_ERR_MALLOC;
890 session->pollfds = new_pollfds;
891 session->sources = new_sources;
897 * Remove the source belonging to the specified file descriptor.
899 * @param session The session to use. Must not be NULL.
900 * @param fd The file descriptor for which the source should be removed.
902 * @retval SR_OK Success
903 * @retval SR_ERR_ARG Invalid argument
904 * @retval SR_ERR_MALLOC Memory allocation error.
905 * @retval SR_ERR_BUG Internal error.
909 SR_API int sr_session_source_remove(struct sr_session *session, int fd)
911 return _sr_session_source_remove(session, (gintptr)fd);
915 * Remove the source belonging to the specified poll descriptor.
917 * @param session The session to use. Must not be NULL.
918 * @param pollfd The poll descriptor for which the source should be removed.
920 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
921 * SR_ERR_MALLOC upon memory allocation errors, SR_ERR_BUG upon
926 SR_API int sr_session_source_remove_pollfd(struct sr_session *session,
929 return _sr_session_source_remove(session, (gintptr)pollfd);
933 * Remove the source belonging to the specified channel.
935 * @param session The session to use. Must not be NULL.
936 * @param channel The channel for which the source should be removed.
938 * @retval SR_OK Success.
939 * @retval SR_ERR_ARG Invalid argument.
940 * @retval SR_ERR_MALLOC Memory allocation error.
941 * @return SR_ERR_BUG Internal error.
945 SR_API int sr_session_source_remove_channel(struct sr_session *session,
948 return _sr_session_source_remove(session, (gintptr)channel);
951 static void *copy_src(struct sr_config *src)
953 struct sr_config *new_src;
955 new_src = g_malloc(sizeof(struct sr_config));
956 memcpy(new_src, src, sizeof(struct sr_config));
957 g_variant_ref(src->data);
962 SR_PRIV int sr_packet_copy(const struct sr_datafeed_packet *packet,
963 struct sr_datafeed_packet **copy)
965 const struct sr_datafeed_meta *meta;
966 struct sr_datafeed_meta *meta_copy;
967 const struct sr_datafeed_logic *logic;
968 struct sr_datafeed_logic *logic_copy;
969 const struct sr_datafeed_analog *analog;
970 struct sr_datafeed_analog *analog_copy;
973 *copy = g_malloc0(sizeof(struct sr_datafeed_packet));
974 (*copy)->type = packet->type;
976 switch (packet->type) {
982 payload = g_malloc(sizeof(struct sr_datafeed_header));
983 memcpy(payload, packet->payload, sizeof(struct sr_datafeed_header));
984 (*copy)->payload = payload;
987 meta = packet->payload;
988 meta_copy = g_malloc(sizeof(struct sr_datafeed_meta));
989 meta_copy->config = g_slist_copy_deep(meta->config,
990 (GCopyFunc)copy_src, NULL);
991 (*copy)->payload = meta_copy;
994 logic = packet->payload;
995 logic_copy = g_malloc(sizeof(logic));
996 logic_copy->length = logic->length;
997 logic_copy->unitsize = logic->unitsize;
998 memcpy(logic_copy->data, logic->data, logic->length * logic->unitsize);
999 (*copy)->payload = logic_copy;
1002 analog = packet->payload;
1003 analog_copy = g_malloc(sizeof(analog));
1004 analog_copy->channels = g_slist_copy(analog->channels);
1005 analog_copy->num_samples = analog->num_samples;
1006 analog_copy->mq = analog->mq;
1007 analog_copy->unit = analog->unit;
1008 analog_copy->mqflags = analog->mqflags;
1009 memcpy(analog_copy->data, analog->data,
1010 analog->num_samples * sizeof(float));
1011 (*copy)->payload = analog_copy;
1014 sr_err("Unknown packet type %d", packet->type);
1021 void sr_packet_free(struct sr_datafeed_packet *packet)
1023 const struct sr_datafeed_meta *meta;
1024 const struct sr_datafeed_logic *logic;
1025 const struct sr_datafeed_analog *analog;
1026 struct sr_config *src;
1029 switch (packet->type) {
1035 /* Payload is a simple struct. */
1036 g_free((void *)packet->payload);
1039 meta = packet->payload;
1040 for (l = meta->config; l; l = l->next) {
1042 g_variant_unref(src->data);
1045 g_slist_free(meta->config);
1046 g_free((void *)packet->payload);
1049 logic = packet->payload;
1050 g_free(logic->data);
1051 g_free((void *)packet->payload);
1054 analog = packet->payload;
1055 g_slist_free(analog->channels);
1056 g_free(analog->data);
1057 g_free((void *)packet->payload);
1060 sr_err("Unknown packet type %d", packet->type);