X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fsession.c;h=fd24c26c1a4fa302110c68a5bece69492d304715;hb=4f840ce965b1c30c5ab75afecc56193cbaf5c1b3;hp=dc8fd4fbeaffc2ce3c78cdeabcd5156f30c44363;hpb=013ec84b83a64088b524bb0b3a923c98b7ae9ea4;p=libsigrok.git diff --git a/src/session.c b/src/session.c index dc8fd4fb..fd24c26c 100644 --- a/src/session.c +++ b/src/session.c @@ -113,6 +113,8 @@ SR_API int sr_session_destroy(struct sr_session *session) if (session->trigger) sr_trigger_free(session->trigger); + g_slist_free_full(session->owned_devs, (GDestroyNotify)sr_dev_inst_free); + g_free(session); return SR_OK; @@ -304,9 +306,7 @@ SR_API int sr_session_datafeed_callback_add(struct sr_session *session, return SR_ERR_ARG; } - if (!(cb_struct = g_try_malloc0(sizeof(struct datafeed_callback)))) - return SR_ERR_MALLOC; - + cb_struct = g_malloc0(sizeof(struct datafeed_callback)); cb_struct->cb = cb; cb_struct->cb_data = cb_data; @@ -316,13 +316,40 @@ SR_API int sr_session_datafeed_callback_add(struct sr_session *session, return SR_OK; } +/** + * Get the trigger assigned to this session. + * + * @param session The session to use. + * + * @retval NULL Invalid (NULL) session was passed to the function. + * @retval other The trigger assigned to this session (can be NULL). + * + * @since 0.4.0 + */ SR_API struct sr_trigger *sr_session_trigger_get(struct sr_session *session) { + if (!session) + return NULL; + return session->trigger; } +/** + * Set the trigger of this session. + * + * @param session The session to use. Must not be NULL. + * @param trig The trigger to assign to this session. Can be NULL. + * + * @retval SR_OK Success. + * @retval SR_ERR_ARG Invalid argument. + * + * @since 0.4.0 + */ SR_API int sr_session_trigger_set(struct sr_session *session, struct sr_trigger *trig) { + if (!session) + return SR_ERR_ARG; + session->trigger = trig; return SR_OK; @@ -385,7 +412,6 @@ static int sr_session_iteration(struct sr_session *session, gboolean block) return SR_OK; } - static int verify_trigger(struct sr_trigger *trigger) { struct sr_trigger_stage *stage; @@ -467,8 +493,8 @@ SR_API int sr_session_start(struct sr_session *session) } if (enabled_channels == 0) { ret = SR_ERR; - sr_err("%s instance %d has no enabled channels!", - sdi->driver->name, sdi->index); + sr_err("%s using connection %s has no enabled channels!", + sdi->driver->name, sdi->connection_id); break; } @@ -611,6 +637,7 @@ static void datafeed_dump(const struct sr_datafeed_packet *packet) { const struct sr_datafeed_logic *logic; const struct sr_datafeed_analog *analog; + const struct sr_datafeed_analog2 *analog2; switch (packet->type) { case SR_DF_HEADER: @@ -632,6 +659,11 @@ static void datafeed_dump(const struct sr_datafeed_packet *packet) sr_dbg("bus: Received SR_DF_ANALOG packet (%d samples).", analog->num_samples); break; + case SR_DF_ANALOG2: + analog2 = packet->payload; + sr_dbg("bus: Received SR_DF_ANALOG2 packet (%d samples).", + analog2->num_samples); + break; case SR_DF_END: sr_dbg("bus: Received SR_DF_END packet."); break; @@ -661,10 +693,13 @@ static void datafeed_dump(const struct sr_datafeed_packet *packet) * @private */ SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi, - const struct sr_datafeed_packet *packet) + const struct sr_datafeed_packet *packet) { GSList *l; struct datafeed_callback *cb_struct; + struct sr_datafeed_packet *packet_in, *packet_out; + struct sr_transform *t; + int ret; if (!sdi) { sr_err("%s: sdi was NULL", __func__); @@ -676,6 +711,45 @@ SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi, return SR_ERR_ARG; } + if (!sdi->session) { + sr_err("%s: session was NULL", __func__); + return SR_ERR_BUG; + } + + /* + * Pass the packet to the first transform module. If that returns + * another packet (instead of NULL), pass that packet to the next + * transform module in the list, and so on. + */ + packet_in = (struct sr_datafeed_packet *)packet; + for (l = sdi->session->transforms; l; l = l->next) { + t = l->data; + sr_spew("Running transform module '%s'.", t->module->id); + ret = t->module->receive(t, packet_in, &packet_out); + if (ret < 0) { + sr_err("Error while running transform module: %d.", ret); + return SR_ERR; + } + if (!packet_out) { + /* + * If any of the transforms don't return an output + * packet, abort. + */ + sr_spew("Transform module didn't return a packet, aborting."); + return SR_OK; + } else { + /* + * Use this transform module's output packet as input + * for the next transform module. + */ + packet_in = packet_out; + } + } + + /* + * If the last transform did output a packet, pass it to all datafeed + * callbacks. + */ for (l = sdi->session->datafeed_callbacks; l; l = l->next) { if (sr_log_loglevel_get() >= SR_LOG_DBG) datafeed_dump(packet); @@ -699,7 +773,6 @@ SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi, * * @retval SR_OK Success. * @retval SR_ERR_ARG Invalid argument. - * @retval SR_ERR_MALLOC Memory allocation error. */ static int _sr_session_source_add(struct sr_session *session, GPollFD *pollfd, int timeout, sr_receive_data_callback cb, void *cb_data, gintptr poll_object) @@ -714,19 +787,10 @@ static int _sr_session_source_add(struct sr_session *session, GPollFD *pollfd, /* Note: cb_data can be NULL, that's not a bug. */ - new_pollfds = g_try_realloc(session->pollfds, + new_pollfds = g_realloc(session->pollfds, sizeof(GPollFD) * (session->num_sources + 1)); - if (!new_pollfds) { - sr_err("%s: new_pollfds malloc failed", __func__); - return SR_ERR_MALLOC; - } - - new_sources = g_try_realloc(session->sources, sizeof(struct source) * + new_sources = g_realloc(session->sources, sizeof(struct source) * (session->num_sources + 1)); - if (!new_sources) { - sr_err("%s: new_sources malloc failed", __func__); - return SR_ERR_MALLOC; - } new_pollfds[session->num_sources] = *pollfd; s = &new_sources[session->num_sources++]; @@ -756,7 +820,6 @@ static int _sr_session_source_add(struct sr_session *session, GPollFD *pollfd, * * @retval SR_OK Success. * @retval SR_ERR_ARG Invalid argument. - * @retval SR_ERR_MALLOC Memory allocation error. * * @since 0.3.0 */ @@ -782,7 +845,6 @@ SR_API int sr_session_source_add(struct sr_session *session, int fd, * * @retval SR_OK Success. * @retval SR_ERR_ARG Invalid argument. - * @retval SR_ERR_MALLOC Memory allocation error. * * @since 0.3.0 */ @@ -791,7 +853,7 @@ SR_API int sr_session_source_add_pollfd(struct sr_session *session, void *cb_data) { return _sr_session_source_add(session, pollfd, timeout, cb, - cb_data, (gintptr)pollfd); + cb_data, (gintptr)pollfd); } /** @@ -806,7 +868,6 @@ SR_API int sr_session_source_add_pollfd(struct sr_session *session, * * @retval SR_OK Success. * @retval SR_ERR_ARG Invalid argument. - * @retval SR_ERR_MALLOC Memory allocation error. * * @since 0.3.0 */ @@ -829,20 +890,15 @@ SR_API int sr_session_source_add_channel(struct sr_session *session, /** * Remove the source belonging to the specified channel. * - * @todo Add more error checks and logging. - * * @param session The session to use. Must not be NULL. * @param poll_object The channel for which the source should be removed. * * @retval SR_OK Success * @retval SR_ERR_ARG Invalid arguments - * @retval SR_ERR_MALLOC Memory allocation error * @retval SR_ERR_BUG Internal error */ static int _sr_session_source_remove(struct sr_session *session, gintptr poll_object) { - struct source *new_sources; - GPollFD *new_pollfds; unsigned int old; if (!session->sources || !session->num_sources) { @@ -859,29 +915,17 @@ static int _sr_session_source_remove(struct sr_session *session, gintptr poll_ob if (old == session->num_sources) return SR_OK; - session->num_sources -= 1; + session->num_sources--; if (old != session->num_sources) { - memmove(&session->pollfds[old], &session->pollfds[old+1], + memmove(&session->pollfds[old], &session->pollfds[old + 1], (session->num_sources - old) * sizeof(GPollFD)); - memmove(&session->sources[old], &session->sources[old+1], + memmove(&session->sources[old], &session->sources[old + 1], (session->num_sources - old) * sizeof(struct source)); } - new_pollfds = g_try_realloc(session->pollfds, sizeof(GPollFD) * session->num_sources); - if (!new_pollfds && session->num_sources > 0) { - sr_err("%s: new_pollfds malloc failed", __func__); - return SR_ERR_MALLOC; - } - - new_sources = g_try_realloc(session->sources, sizeof(struct source) * session->num_sources); - if (!new_sources && session->num_sources > 0) { - sr_err("%s: new_sources malloc failed", __func__); - return SR_ERR_MALLOC; - } - - session->pollfds = new_pollfds; - session->sources = new_sources; + session->pollfds = g_realloc(session->pollfds, sizeof(GPollFD) * session->num_sources); + session->sources = g_realloc(session->sources, sizeof(struct source) * session->num_sources); return SR_OK; } @@ -894,7 +938,6 @@ static int _sr_session_source_remove(struct sr_session *session, gintptr poll_ob * * @retval SR_OK Success * @retval SR_ERR_ARG Invalid argument - * @retval SR_ERR_MALLOC Memory allocation error. * @retval SR_ERR_BUG Internal error. * * @since 0.3.0 @@ -930,7 +973,6 @@ SR_API int sr_session_source_remove_pollfd(struct sr_session *session, * * @retval SR_OK Success. * @retval SR_ERR_ARG Invalid argument. - * @retval SR_ERR_MALLOC Memory allocation error. * @return SR_ERR_BUG Internal error. * * @since 0.2.0 @@ -941,4 +983,114 @@ SR_API int sr_session_source_remove_channel(struct sr_session *session, return _sr_session_source_remove(session, (gintptr)channel); } +static void copy_src(struct sr_config *src, struct sr_datafeed_meta *meta_copy) +{ + g_variant_ref(src->data); + meta_copy->config = g_slist_append(meta_copy->config, + g_memdup(src, sizeof(struct sr_config))); +} + +SR_PRIV int sr_packet_copy(const struct sr_datafeed_packet *packet, + struct sr_datafeed_packet **copy) +{ + const struct sr_datafeed_meta *meta; + struct sr_datafeed_meta *meta_copy; + const struct sr_datafeed_logic *logic; + struct sr_datafeed_logic *logic_copy; + const struct sr_datafeed_analog *analog; + struct sr_datafeed_analog *analog_copy; + uint8_t *payload; + + *copy = g_malloc0(sizeof(struct sr_datafeed_packet)); + (*copy)->type = packet->type; + + switch (packet->type) { + case SR_DF_TRIGGER: + case SR_DF_END: + /* No payload. */ + break; + case SR_DF_HEADER: + payload = g_malloc(sizeof(struct sr_datafeed_header)); + memcpy(payload, packet->payload, sizeof(struct sr_datafeed_header)); + (*copy)->payload = payload; + break; + case SR_DF_META: + meta = packet->payload; + meta_copy = g_malloc0(sizeof(struct sr_datafeed_meta)); + g_slist_foreach(meta->config, (GFunc)copy_src, meta_copy->config); + (*copy)->payload = meta_copy; + break; + case SR_DF_LOGIC: + logic = packet->payload; + logic_copy = g_malloc(sizeof(logic)); + logic_copy->length = logic->length; + logic_copy->unitsize = logic->unitsize; + memcpy(logic_copy->data, logic->data, logic->length * logic->unitsize); + (*copy)->payload = logic_copy; + break; + case SR_DF_ANALOG: + analog = packet->payload; + analog_copy = g_malloc(sizeof(analog)); + analog_copy->channels = g_slist_copy(analog->channels); + analog_copy->num_samples = analog->num_samples; + analog_copy->mq = analog->mq; + analog_copy->unit = analog->unit; + analog_copy->mqflags = analog->mqflags; + memcpy(analog_copy->data, analog->data, + analog->num_samples * sizeof(float)); + (*copy)->payload = analog_copy; + break; + default: + sr_err("Unknown packet type %d", packet->type); + return SR_ERR; + } + + return SR_OK; +} + +void sr_packet_free(struct sr_datafeed_packet *packet) +{ + const struct sr_datafeed_meta *meta; + const struct sr_datafeed_logic *logic; + const struct sr_datafeed_analog *analog; + struct sr_config *src; + GSList *l; + + switch (packet->type) { + case SR_DF_TRIGGER: + case SR_DF_END: + /* No payload. */ + break; + case SR_DF_HEADER: + /* Payload is a simple struct. */ + g_free((void *)packet->payload); + break; + case SR_DF_META: + meta = packet->payload; + for (l = meta->config; l; l = l->next) { + src = l->data; + g_variant_unref(src->data); + g_free(src); + } + g_slist_free(meta->config); + g_free((void *)packet->payload); + break; + case SR_DF_LOGIC: + logic = packet->payload; + g_free(logic->data); + g_free((void *)packet->payload); + break; + case SR_DF_ANALOG: + analog = packet->payload; + g_slist_free(analog->channels); + g_free(analog->data); + g_free((void *)packet->payload); + break; + default: + sr_err("Unknown packet type %d", packet->type); + } + g_free(packet); + +} + /** @} */