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 cb_struct = g_malloc0(sizeof(struct datafeed_callback));
311 cb_struct->cb_data = cb_data;
313 session->datafeed_callbacks =
314 g_slist_append(session->datafeed_callbacks, cb_struct);
320 * Get the trigger assigned to this session.
322 * @param session The session to use.
324 * @retval NULL Invalid (NULL) session was passed to the function.
325 * @retval other The trigger assigned to this session (can be NULL).
329 SR_API struct sr_trigger *sr_session_trigger_get(struct sr_session *session)
334 return session->trigger;
338 * Set the trigger of this session.
340 * @param session The session to use. Must not be NULL.
341 * @param trig The trigger to assign to this session. Can be NULL.
343 * @retval SR_OK Success.
344 * @retval SR_ERR_ARG Invalid argument.
348 SR_API int sr_session_trigger_set(struct sr_session *session, struct sr_trigger *trig)
353 session->trigger = trig;
359 * Call every device in the current session's callback.
361 * For sessions not driven by select loops such as sr_session_run(),
362 * but driven by another scheduler, this can be used to poll the devices
363 * from within that scheduler.
365 * @param session The session to use. Must not be NULL.
366 * @param block If TRUE, this call will wait for any of the session's
367 * sources to fire an event on the file descriptors, or
368 * any of their timeouts to activate. In other words, this
369 * can be used as a select loop.
370 * If FALSE, all sources have their callback run, regardless
371 * of file descriptor or timeout status.
373 * @retval SR_OK Success.
374 * @retval SR_ERR Error occured.
376 static int sr_session_iteration(struct sr_session *session, gboolean block)
381 ret = g_poll(session->pollfds, session->num_sources,
382 block ? session->source_timeout : 0);
383 for (i = 0; i < session->num_sources; i++) {
384 if (session->pollfds[i].revents > 0 || (ret == 0
385 && session->source_timeout == session->sources[i].timeout)) {
387 * Invoke the source's callback on an event,
388 * or if the poll timed out and this source
389 * asked for that timeout.
391 if (!session->sources[i].cb(session->pollfds[i].fd,
392 session->pollfds[i].revents,
393 session->sources[i].cb_data))
394 sr_session_source_remove(session,
395 session->sources[i].poll_object);
398 * We want to take as little time as possible to stop
399 * the session if we have been told to do so. Therefore,
400 * we check the flag after processing every source, not
401 * just once per main event loop.
403 g_mutex_lock(&session->stop_mutex);
404 if (session->abort_session) {
405 sr_session_stop_sync(session);
406 /* But once is enough. */
407 session->abort_session = FALSE;
409 g_mutex_unlock(&session->stop_mutex);
415 static int verify_trigger(struct sr_trigger *trigger)
417 struct sr_trigger_stage *stage;
418 struct sr_trigger_match *match;
421 if (!trigger->stages) {
422 sr_err("No trigger stages defined.");
426 sr_spew("Checking trigger:");
427 for (l = trigger->stages; l; l = l->next) {
429 if (!stage->matches) {
430 sr_err("Stage %d has no matches defined.", stage->stage);
433 for (m = stage->matches; m; m = m->next) {
435 if (!match->channel) {
436 sr_err("Stage %d match has no channel.", stage->stage);
440 sr_err("Stage %d match is not defined.", stage->stage);
443 sr_spew("Stage %d match on channel %s, match %d", stage->stage,
444 match->channel->name, match->match);
454 * @param session The session to use. Must not be NULL.
456 * @retval SR_OK Success.
457 * @retval SR_ERR_ARG Invalid session passed.
461 SR_API int sr_session_start(struct sr_session *session)
463 struct sr_dev_inst *sdi;
464 struct sr_channel *ch;
466 int enabled_channels, ret;
469 sr_err("%s: session was NULL", __func__);
473 if (!session->devs) {
474 sr_err("%s: session->devs was NULL; a session "
475 "cannot be started without devices.", __func__);
479 if (session->trigger && verify_trigger(session->trigger) != SR_OK)
482 sr_info("Starting.");
485 for (l = session->devs; l; l = l->next) {
487 enabled_channels = 0;
488 for (c = sdi->channels; c; c = c->next) {
495 if (enabled_channels == 0) {
497 sr_err("%s using connection %s has no enabled channels!",
498 sdi->driver->name, sdi->connection_id);
502 if ((ret = sr_config_commit(sdi)) != SR_OK) {
503 sr_err("Failed to commit device settings before "
504 "starting acquisition (%s)", sr_strerror(ret));
507 if ((ret = sdi->driver->dev_acquisition_start(sdi, sdi)) != SR_OK) {
508 sr_err("%s: could not start an acquisition "
509 "(%s)", __func__, sr_strerror(ret));
514 /* TODO: What if there are multiple devices? Which return code? */
522 * @param session The session to use. Must not be NULL.
524 * @retval SR_OK Success.
525 * @retval SR_ERR_ARG Invalid session passed.
529 SR_API int sr_session_run(struct sr_session *session)
532 sr_err("%s: session was NULL", __func__);
536 if (!session->devs) {
537 /* TODO: Actually the case? */
538 sr_err("%s: session->devs was NULL; a session "
539 "cannot be run without devices.", __func__);
542 session->running = TRUE;
546 /* Do we have real sources? */
547 if (session->num_sources == 1 && session->pollfds[0].fd == -1) {
548 /* Dummy source, freewheel over it. */
549 while (session->num_sources)
550 session->sources[0].cb(-1, 0, session->sources[0].cb_data);
552 /* Real sources, use g_poll() main loop. */
553 while (session->num_sources)
554 sr_session_iteration(session, TRUE);
563 * The session is stopped immediately, with all acquisition sessions stopped
564 * and hardware drivers cleaned up.
566 * This must be called from within the session thread, to prevent freeing
567 * resources that the session thread will try to use.
569 * @param session The session to use. Must not be NULL.
571 * @retval SR_OK Success.
572 * @retval SR_ERR_ARG Invalid session passed.
576 SR_PRIV int sr_session_stop_sync(struct sr_session *session)
578 struct sr_dev_inst *sdi;
582 sr_err("%s: session was NULL", __func__);
586 sr_info("Stopping.");
588 for (l = session->devs; l; l = l->next) {
591 if (sdi->driver->dev_acquisition_stop)
592 sdi->driver->dev_acquisition_stop(sdi, sdi);
595 session->running = FALSE;
603 * The session is stopped immediately, with all acquisition sessions being
604 * stopped and hardware drivers cleaned up.
606 * If the session is run in a separate thread, this function will not block
607 * until the session is finished executing. It is the caller's responsibility
608 * to wait for the session thread to return before assuming that the session is
609 * completely decommissioned.
611 * @param session The session to use. Must not be NULL.
613 * @retval SR_OK Success.
614 * @retval SR_ERR_ARG Invalid session passed.
618 SR_API int sr_session_stop(struct sr_session *session)
621 sr_err("%s: session was NULL", __func__);
625 g_mutex_lock(&session->stop_mutex);
626 session->abort_session = TRUE;
627 g_mutex_unlock(&session->stop_mutex);
635 * @param packet The packet to show debugging information for.
637 static void datafeed_dump(const struct sr_datafeed_packet *packet)
639 const struct sr_datafeed_logic *logic;
640 const struct sr_datafeed_analog *analog;
641 const struct sr_datafeed_analog2 *analog2;
643 switch (packet->type) {
645 sr_dbg("bus: Received SR_DF_HEADER packet.");
648 sr_dbg("bus: Received SR_DF_TRIGGER packet.");
651 sr_dbg("bus: Received SR_DF_META packet.");
654 logic = packet->payload;
655 sr_dbg("bus: Received SR_DF_LOGIC packet (%" PRIu64 " bytes, "
656 "unitsize = %d).", logic->length, logic->unitsize);
659 analog = packet->payload;
660 sr_dbg("bus: Received SR_DF_ANALOG packet (%d samples).",
661 analog->num_samples);
664 analog2 = packet->payload;
665 sr_dbg("bus: Received SR_DF_ANALOG2 packet (%d samples).",
666 analog2->num_samples);
669 sr_dbg("bus: Received SR_DF_END packet.");
671 case SR_DF_FRAME_BEGIN:
672 sr_dbg("bus: Received SR_DF_FRAME_BEGIN packet.");
674 case SR_DF_FRAME_END:
675 sr_dbg("bus: Received SR_DF_FRAME_END packet.");
678 sr_dbg("bus: Received unknown packet type: %d.", packet->type);
684 * Send a packet to whatever is listening on the datafeed bus.
686 * Hardware drivers use this to send a data packet to the frontend.
689 * @param packet The datafeed packet to send to the session bus.
691 * @retval SR_OK Success.
692 * @retval SR_ERR_ARG Invalid argument.
696 SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
697 const struct sr_datafeed_packet *packet)
700 struct datafeed_callback *cb_struct;
701 struct sr_datafeed_packet *packet_in, *packet_out;
702 struct sr_transform *t;
706 sr_err("%s: sdi was NULL", __func__);
711 sr_err("%s: packet was NULL", __func__);
716 sr_err("%s: session was NULL", __func__);
721 * Pass the packet to the first transform module. If that returns
722 * another packet (instead of NULL), pass that packet to the next
723 * transform module in the list, and so on.
725 packet_in = (struct sr_datafeed_packet *)packet;
726 for (l = sdi->session->transforms; l; l = l->next) {
728 sr_spew("Running transform module '%s'.", t->module->id);
729 ret = t->module->receive(t, packet_in, &packet_out);
731 sr_err("Error while running transform module: %d.", ret);
736 * If any of the transforms don't return an output
739 sr_spew("Transform module didn't return a packet, aborting.");
743 * Use this transform module's output packet as input
744 * for the next transform module.
746 packet_in = packet_out;
751 * If the last transform did output a packet, pass it to all datafeed
754 for (l = sdi->session->datafeed_callbacks; l; l = l->next) {
755 if (sr_log_loglevel_get() >= SR_LOG_DBG)
756 datafeed_dump(packet);
758 cb_struct->cb(sdi, packet, cb_struct->cb_data);
765 * Add an event source for a file descriptor.
767 * @param session The session to use. Must not be NULL.
768 * @param pollfd The GPollFD.
769 * @param[in] timeout Max time to wait before the callback is called,
771 * @param cb Callback function to add. Must not be NULL.
772 * @param cb_data Data for the callback function. Can be NULL.
773 * @param poll_object TODO.
775 * @retval SR_OK Success.
776 * @retval SR_ERR_ARG Invalid argument.
778 static int _sr_session_source_add(struct sr_session *session, GPollFD *pollfd,
779 int timeout, sr_receive_data_callback cb, void *cb_data, gintptr poll_object)
781 struct source *new_sources, *s;
782 GPollFD *new_pollfds;
785 sr_err("%s: cb was NULL", __func__);
789 /* Note: cb_data can be NULL, that's not a bug. */
791 new_pollfds = g_realloc(session->pollfds,
792 sizeof(GPollFD) * (session->num_sources + 1));
793 new_sources = g_realloc(session->sources, sizeof(struct source) *
794 (session->num_sources + 1));
796 new_pollfds[session->num_sources] = *pollfd;
797 s = &new_sources[session->num_sources++];
798 s->timeout = timeout;
800 s->cb_data = cb_data;
801 s->poll_object = poll_object;
802 session->pollfds = new_pollfds;
803 session->sources = new_sources;
805 if (timeout != session->source_timeout && timeout > 0
806 && (session->source_timeout == -1 || timeout < session->source_timeout))
807 session->source_timeout = timeout;
813 * Add an event source for a file descriptor.
815 * @param session The session to use. Must not be NULL.
816 * @param fd The file descriptor.
817 * @param events Events to check for.
818 * @param timeout Max time to wait before the callback is called, ignored if 0.
819 * @param cb Callback function to add. Must not be NULL.
820 * @param cb_data Data for the callback function. Can be NULL.
822 * @retval SR_OK Success.
823 * @retval SR_ERR_ARG Invalid argument.
827 SR_API int sr_session_source_add(struct sr_session *session, int fd,
828 int events, int timeout, sr_receive_data_callback cb, void *cb_data)
835 return _sr_session_source_add(session, &p, timeout, cb, cb_data, (gintptr)fd);
839 * Add an event source for a GPollFD.
841 * @param session The session to use. Must not be NULL.
842 * @param pollfd The GPollFD.
843 * @param timeout Max time to wait before the callback is called, ignored if 0.
844 * @param cb Callback function to add. Must not be NULL.
845 * @param cb_data Data for the callback function. Can be NULL.
847 * @retval SR_OK Success.
848 * @retval SR_ERR_ARG Invalid argument.
852 SR_API int sr_session_source_add_pollfd(struct sr_session *session,
853 GPollFD *pollfd, int timeout, sr_receive_data_callback cb,
856 return _sr_session_source_add(session, pollfd, timeout, cb,
857 cb_data, (gintptr)pollfd);
861 * Add an event source for a GIOChannel.
863 * @param session The session to use. Must not be NULL.
864 * @param channel The GIOChannel.
865 * @param events Events to poll on.
866 * @param timeout Max time to wait before the callback is called, ignored if 0.
867 * @param cb Callback function to add. Must not be NULL.
868 * @param cb_data Data for the callback function. Can be NULL.
870 * @retval SR_OK Success.
871 * @retval SR_ERR_ARG Invalid argument.
875 SR_API int sr_session_source_add_channel(struct sr_session *session,
876 GIOChannel *channel, int events, int timeout,
877 sr_receive_data_callback cb, void *cb_data)
882 g_io_channel_win32_make_pollfd(channel, events, &p);
884 p.fd = g_io_channel_unix_get_fd(channel);
888 return _sr_session_source_add(session, &p, timeout, cb, cb_data, (gintptr)channel);
892 * Remove the source belonging to the specified channel.
894 * @param session The session to use. Must not be NULL.
895 * @param poll_object The channel for which the source should be removed.
897 * @retval SR_OK Success
898 * @retval SR_ERR_ARG Invalid arguments
899 * @retval SR_ERR_BUG Internal error
901 static int _sr_session_source_remove(struct sr_session *session, gintptr poll_object)
905 if (!session->sources || !session->num_sources) {
906 sr_err("%s: sources was NULL", __func__);
910 for (old = 0; old < session->num_sources; old++) {
911 if (session->sources[old].poll_object == poll_object)
915 /* fd not found, nothing to do */
916 if (old == session->num_sources)
919 session->num_sources--;
921 if (old != session->num_sources) {
922 memmove(&session->pollfds[old], &session->pollfds[old + 1],
923 (session->num_sources - old) * sizeof(GPollFD));
924 memmove(&session->sources[old], &session->sources[old + 1],
925 (session->num_sources - old) * sizeof(struct source));
928 session->pollfds = g_realloc(session->pollfds, sizeof(GPollFD) * session->num_sources);
929 session->sources = g_realloc(session->sources, sizeof(struct source) * session->num_sources);
935 * Remove the source belonging to the specified file descriptor.
937 * @param session The session to use. Must not be NULL.
938 * @param fd The file descriptor for which the source should be removed.
940 * @retval SR_OK Success
941 * @retval SR_ERR_ARG Invalid argument
942 * @retval SR_ERR_BUG Internal error.
946 SR_API int sr_session_source_remove(struct sr_session *session, int fd)
948 return _sr_session_source_remove(session, (gintptr)fd);
952 * Remove the source belonging to the specified poll descriptor.
954 * @param session The session to use. Must not be NULL.
955 * @param pollfd The poll descriptor for which the source should be removed.
957 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
958 * SR_ERR_MALLOC upon memory allocation errors, SR_ERR_BUG upon
963 SR_API int sr_session_source_remove_pollfd(struct sr_session *session,
966 return _sr_session_source_remove(session, (gintptr)pollfd);
970 * Remove the source belonging to the specified channel.
972 * @param session The session to use. Must not be NULL.
973 * @param channel The channel for which the source should be removed.
975 * @retval SR_OK Success.
976 * @retval SR_ERR_ARG Invalid argument.
977 * @return SR_ERR_BUG Internal error.
981 SR_API int sr_session_source_remove_channel(struct sr_session *session,
984 return _sr_session_source_remove(session, (gintptr)channel);
987 static void copy_src(struct sr_config *src, struct sr_datafeed_meta *meta_copy)
989 g_variant_ref(src->data);
990 meta_copy->config = g_slist_append(meta_copy->config,
991 g_memdup(src, sizeof(struct sr_config)));
994 SR_PRIV int sr_packet_copy(const struct sr_datafeed_packet *packet,
995 struct sr_datafeed_packet **copy)
997 const struct sr_datafeed_meta *meta;
998 struct sr_datafeed_meta *meta_copy;
999 const struct sr_datafeed_logic *logic;
1000 struct sr_datafeed_logic *logic_copy;
1001 const struct sr_datafeed_analog *analog;
1002 struct sr_datafeed_analog *analog_copy;
1005 *copy = g_malloc0(sizeof(struct sr_datafeed_packet));
1006 (*copy)->type = packet->type;
1008 switch (packet->type) {
1014 payload = g_malloc(sizeof(struct sr_datafeed_header));
1015 memcpy(payload, packet->payload, sizeof(struct sr_datafeed_header));
1016 (*copy)->payload = payload;
1019 meta = packet->payload;
1020 meta_copy = g_malloc0(sizeof(struct sr_datafeed_meta));
1021 g_slist_foreach(meta->config, (GFunc)copy_src, meta_copy->config);
1022 (*copy)->payload = meta_copy;
1025 logic = packet->payload;
1026 logic_copy = g_malloc(sizeof(logic));
1027 logic_copy->length = logic->length;
1028 logic_copy->unitsize = logic->unitsize;
1029 memcpy(logic_copy->data, logic->data, logic->length * logic->unitsize);
1030 (*copy)->payload = logic_copy;
1033 analog = packet->payload;
1034 analog_copy = g_malloc(sizeof(analog));
1035 analog_copy->channels = g_slist_copy(analog->channels);
1036 analog_copy->num_samples = analog->num_samples;
1037 analog_copy->mq = analog->mq;
1038 analog_copy->unit = analog->unit;
1039 analog_copy->mqflags = analog->mqflags;
1040 memcpy(analog_copy->data, analog->data,
1041 analog->num_samples * sizeof(float));
1042 (*copy)->payload = analog_copy;
1045 sr_err("Unknown packet type %d", packet->type);
1052 void sr_packet_free(struct sr_datafeed_packet *packet)
1054 const struct sr_datafeed_meta *meta;
1055 const struct sr_datafeed_logic *logic;
1056 const struct sr_datafeed_analog *analog;
1057 struct sr_config *src;
1060 switch (packet->type) {
1066 /* Payload is a simple struct. */
1067 g_free((void *)packet->payload);
1070 meta = packet->payload;
1071 for (l = meta->config; l; l = l->next) {
1073 g_variant_unref(src->data);
1076 g_slist_free(meta->config);
1077 g_free((void *)packet->payload);
1080 logic = packet->payload;
1081 g_free(logic->data);
1082 g_free((void *)packet->payload);
1085 analog = packet->payload;
1086 g_slist_free(analog->channels);
1087 g_free(analog->data);
1088 g_free((void *)packet->payload);
1091 sr_err("Unknown packet type %d", packet->type);