* SOFTWARE.
*/
+#define BT_LOG_TAG "NOTIF-ITER"
+#include <babeltrace/lib-logging-internal.h>
+
#include <babeltrace/compiler-internal.h>
#include <babeltrace/ref.h>
+#include <babeltrace/ctf-ir/fields.h>
+#include <babeltrace/ctf-ir/field-types.h>
+#include <babeltrace/ctf-ir/field-types-internal.h>
#include <babeltrace/ctf-ir/event-internal.h>
#include <babeltrace/ctf-ir/packet-internal.h>
#include <babeltrace/ctf-ir/stream-internal.h>
+#include <babeltrace/graph/connection.h>
#include <babeltrace/graph/connection-internal.h>
#include <babeltrace/graph/component.h>
#include <babeltrace/graph/component-source-internal.h>
#include <babeltrace/graph/component-class-internal.h>
+#include <babeltrace/graph/component-class-sink-colander-internal.h>
+#include <babeltrace/graph/component-sink.h>
#include <babeltrace/graph/notification.h>
#include <babeltrace/graph/notification-iterator.h>
#include <babeltrace/graph/notification-iterator-internal.h>
#include <babeltrace/graph/notification-packet-internal.h>
#include <babeltrace/graph/notification-stream.h>
#include <babeltrace/graph/notification-stream-internal.h>
+#include <babeltrace/graph/notification-discarded-elements-internal.h>
#include <babeltrace/graph/port.h>
+#include <babeltrace/graph/graph-internal.h>
#include <babeltrace/types.h>
#include <stdint.h>
+#include <inttypes.h>
+#include <stdlib.h>
+
+struct discarded_elements_state {
+ struct bt_clock_value *cur_begin;
+ uint64_t cur_count;
+};
struct stream_state {
- struct bt_ctf_stream *stream; /* owned by this */
- struct bt_ctf_packet *cur_packet; /* owned by this */
+ struct bt_stream *stream; /* owned by this */
+ struct bt_packet *cur_packet; /* owned by this */
+ struct discarded_elements_state discarded_packets_state;
+ struct discarded_elements_state discarded_events_state;
bt_bool is_ended;
};
ACTION_TYPE_ADD_STREAM_STATE,
ACTION_TYPE_SET_STREAM_STATE_IS_ENDED,
ACTION_TYPE_SET_STREAM_STATE_CUR_PACKET,
+ ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_PACKETS,
+ ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_EVENTS,
};
struct action {
/* ACTION_TYPE_MAP_PORT_TO_COMP_IN_STREAM */
struct {
- struct bt_ctf_stream *stream; /* owned by this */
+ struct bt_stream *stream; /* owned by this */
struct bt_component *component; /* owned by this */
struct bt_port *port; /* owned by this */
} map_port_to_comp_in_stream;
/* ACTION_TYPE_ADD_STREAM_STATE */
struct {
- struct bt_ctf_stream *stream; /* owned by this */
+ struct bt_stream *stream; /* owned by this */
struct stream_state *stream_state; /* owned by this */
} add_stream_state;
/* ACTION_TYPE_SET_STREAM_STATE_CUR_PACKET */
struct {
struct stream_state *stream_state; /* weak */
- struct bt_ctf_packet *packet; /* owned by this */
+ struct bt_packet *packet; /* owned by this */
} set_stream_state_cur_packet;
+
+ /* ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_PACKETS */
+ /* ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_EVENTS */
+ struct {
+ struct stream_state *stream_state; /* weak */
+ struct bt_clock_value *cur_begin; /* owned by this */
+ uint64_t cur_count;
+ } update_stream_state_discarded_elements;
} payload;
};
static
-void stream_destroy_listener(struct bt_ctf_stream *stream, void *data)
+void stream_destroy_listener(struct bt_stream *stream, void *data)
{
- struct bt_notification_iterator *iterator = data;
+ struct bt_notification_iterator_private_connection *iterator = data;
/* Remove associated stream state */
g_hash_table_remove(iterator->stream_states, stream);
return;
}
+ BT_LOGV("Destroying stream state: stream-state-addr=%p", stream_state);
+ BT_LOGV_STR("Putting stream state's current packet.");
bt_put(stream_state->cur_packet);
+ BT_LOGV_STR("Putting stream state's stream.");
bt_put(stream_state->stream);
+ bt_put(stream_state->discarded_packets_state.cur_begin);
+ bt_put(stream_state->discarded_events_state.cur_begin);
g_free(stream_state);
}
break;
case ACTION_TYPE_SET_STREAM_STATE_IS_ENDED:
break;
+ case ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_PACKETS:
+ case ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_EVENTS:
+ BT_PUT(action->payload.update_stream_state_discarded_elements.cur_begin);
+ break;
default:
- assert(BT_FALSE);
+ BT_LOGF("Unexpected action's type: type=%d", action->type);
+ abort();
}
}
static
-void add_action(struct bt_notification_iterator *iterator,
+void add_action(struct bt_notification_iterator_private_connection *iterator,
struct action *action)
{
g_array_append_val(iterator->actions, *action);
}
static
-void clear_actions(struct bt_notification_iterator *iterator)
+void clear_actions(struct bt_notification_iterator_private_connection *iterator)
{
size_t i;
g_array_set_size(iterator->actions, 0);
}
+static inline
+const char *action_type_string(enum action_type type)
+{
+ switch (type) {
+ case ACTION_TYPE_PUSH_NOTIF:
+ return "ACTION_TYPE_PUSH_NOTIF";
+ case ACTION_TYPE_MAP_PORT_TO_COMP_IN_STREAM:
+ return "ACTION_TYPE_MAP_PORT_TO_COMP_IN_STREAM";
+ case ACTION_TYPE_ADD_STREAM_STATE:
+ return "ACTION_TYPE_ADD_STREAM_STATE";
+ case ACTION_TYPE_SET_STREAM_STATE_IS_ENDED:
+ return "ACTION_TYPE_SET_STREAM_STATE_IS_ENDED";
+ case ACTION_TYPE_SET_STREAM_STATE_CUR_PACKET:
+ return "ACTION_TYPE_SET_STREAM_STATE_CUR_PACKET";
+ case ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_PACKETS:
+ return "ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_PACKETS";
+ case ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_EVENTS:
+ return "ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_EVENTS";
+ default:
+ return "(unknown)";
+ }
+}
+
static
-void apply_actions(struct bt_notification_iterator *iterator)
+void apply_actions(struct bt_notification_iterator_private_connection *iterator)
{
size_t i;
+ BT_LOGV("Applying notification's iterator current actions: "
+ "count=%u", iterator->actions->len);
+
for (i = 0; i < iterator->actions->len; i++) {
struct action *action = &g_array_index(iterator->actions,
struct action, i);
+ BT_LOGV("Applying action: index=%zu, type=%s",
+ i, action_type_string(action->type));
+
switch (action->type) {
case ACTION_TYPE_PUSH_NOTIF:
/* Move notification to queue */
action->payload.push_notif.notif = NULL;
break;
case ACTION_TYPE_MAP_PORT_TO_COMP_IN_STREAM:
- bt_ctf_stream_map_component_to_port(
+ bt_stream_map_component_to_port(
action->payload.map_port_to_comp_in_stream.stream,
action->payload.map_port_to_comp_in_stream.component,
action->payload.map_port_to_comp_in_stream.port);
* could be reused for another stream, and they
* must have different states.
*/
- bt_ctf_stream_add_destroy_listener(
+ bt_stream_add_destroy_listener(
action->payload.set_stream_state_is_ended.stream_state->stream,
stream_destroy_listener, iterator);
action->payload.set_stream_state_is_ended.stream_state->is_ended = BT_TRUE;
BT_MOVE(action->payload.set_stream_state_cur_packet.stream_state->cur_packet,
action->payload.set_stream_state_cur_packet.packet);
break;
+ case ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_PACKETS:
+ case ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_EVENTS:
+ {
+ struct discarded_elements_state *state;
+
+ if (action->type == ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_PACKETS) {
+ state = &action->payload.update_stream_state_discarded_elements.stream_state->discarded_packets_state;
+ } else {
+ state = &action->payload.update_stream_state_discarded_elements.stream_state->discarded_events_state;
+ }
+
+ BT_MOVE(state->cur_begin,
+ action->payload.update_stream_state_discarded_elements.cur_begin);
+ state->cur_count = action->payload.update_stream_state_discarded_elements.cur_count;
+ break;
+ }
default:
- assert(BT_FALSE);
+ BT_LOGF("Unexpected action's type: type=%d",
+ action->type);
+ abort();
}
}
}
static
-struct stream_state *create_stream_state(struct bt_ctf_stream *stream)
+struct stream_state *create_stream_state(struct bt_stream *stream)
{
struct stream_state *stream_state = g_new0(struct stream_state, 1);
if (!stream_state) {
+ BT_LOGE_STR("Failed to allocate one stream state.");
goto end;
}
+ /*
+ * The packet index is a monotonic counter which may not start
+ * at 0 at the beginning of the stream. We therefore need to
+ * have an internal object initial state of -1ULL to distinguish
+ * between initial state and having seen a packet with
+ * seqnum = 0.
+ */
+ stream_state->discarded_packets_state.cur_count = -1ULL;
+
/*
* We keep a reference to the stream until we know it's ended
* because we need to be able to create an automatic "stream
* We put this reference when the stream is marked as ended.
*/
stream_state->stream = bt_get(stream);
+ BT_LOGV("Created stream state: stream-addr=%p, stream-name=\"%s\", "
+ "stream-state-addr=%p",
+ stream, bt_stream_get_name(stream), stream_state);
end:
return stream_state;
}
static
-void bt_notification_iterator_destroy(struct bt_object *obj)
+void destroy_base_notification_iterator(struct bt_object *obj)
+{
+ struct bt_notification_iterator *iterator =
+ container_of(obj, struct bt_notification_iterator, base);
+
+ BT_LOGD_STR("Putting current notification.");
+ bt_put(iterator->current_notification);
+ g_free(iterator);
+}
+
+static
+void bt_private_connection_notification_iterator_destroy(struct bt_object *obj)
{
- struct bt_notification_iterator *iterator;
+ struct bt_notification_iterator_private_connection *iterator;
assert(obj);
* would be called again.
*/
obj->ref_count.count++;
- iterator = container_of(obj, struct bt_notification_iterator, base);
- bt_notification_iterator_finalize(iterator);
+ iterator = (void *) container_of(obj, struct bt_notification_iterator, base);
+ BT_LOGD("Destroying private connection notification iterator object: addr=%p",
+ iterator);
+ bt_private_connection_notification_iterator_finalize(iterator);
if (iterator->queue) {
struct bt_notification *notif;
+ BT_LOGD("Putting notifications in queue.");
+
while ((notif = g_queue_pop_tail(iterator->queue))) {
bt_put(notif);
}
while (g_hash_table_iter_next(&ht_iter, &stream_gptr, &stream_state_gptr)) {
assert(stream_gptr);
- bt_ctf_stream_remove_destroy_listener(
+
+ BT_LOGD_STR("Removing stream's destroy listener for notification iterator.");
+ bt_stream_remove_destroy_listener(
(void *) stream_gptr, stream_destroy_listener,
iterator);
}
bt_connection_remove_iterator(iterator->connection, iterator);
}
- bt_put(iterator->current_notification);
- g_free(iterator);
+ destroy_base_notification_iterator(obj);
}
BT_HIDDEN
-void bt_notification_iterator_finalize(
- struct bt_notification_iterator *iterator)
+void bt_private_connection_notification_iterator_finalize(
+ struct bt_notification_iterator_private_connection *iterator)
{
struct bt_component_class *comp_class = NULL;
bt_component_class_notification_iterator_finalize_method
assert(iterator);
switch (iterator->state) {
- case BT_NOTIFICATION_ITERATOR_STATE_FINALIZED:
- case BT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED:
+ case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_NON_INITIALIZED:
+ /* Skip user finalization if user initialization failed */
+ BT_LOGD("Not finalizing non-initialized notification iterator: "
+ "addr=%p", iterator);
+ return;
+ case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED:
+ case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED:
/* Already finalized */
+ BT_LOGD("Not finalizing notification iterator: already finalized: "
+ "addr=%p", iterator);
return;
default:
break;
}
- if (iterator->state == BT_NOTIFICATION_ITERATOR_STATE_ENDED) {
- iterator->state = BT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED;
+ BT_LOGD("Finalizing notification iterator: addr=%p", iterator);
+
+ if (iterator->state == BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ENDED) {
+ BT_LOGD("Updating notification iterator's state: "
+ "new-state=BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED");
+ iterator->state = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED;
} else {
- iterator->state = BT_NOTIFICATION_ITERATOR_STATE_FINALIZED;
+ BT_LOGD("Updating notification iterator's state: "
+ "new-state=BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED");
+ iterator->state = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED;
}
assert(iterator->upstream_component);
}
default:
/* Unreachable */
- assert(0);
+ abort();
}
if (finalize_method) {
+ BT_LOGD("Calling user's finalization method: addr=%p",
+ iterator);
finalize_method(
- bt_private_notification_iterator_from_notification_iterator(iterator));
+ bt_private_connection_private_notification_iterator_from_notification_iterator(iterator));
}
iterator->upstream_component = NULL;
iterator->upstream_port = NULL;
+ BT_LOGD("Finalized notification iterator: addr=%p", iterator);
}
BT_HIDDEN
-void bt_notification_iterator_set_connection(
- struct bt_notification_iterator *iterator,
+void bt_private_connection_notification_iterator_set_connection(
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_connection *connection)
{
assert(iterator);
iterator->connection = connection;
+ BT_LOGV("Set notification iterator's connection: "
+ "iter-addr=%p, conn-addr=%p", iterator, connection);
}
static
int create_subscription_mask_from_notification_types(
- struct bt_notification_iterator *iterator,
+ struct bt_notification_iterator_private_connection *iterator,
const enum bt_notification_type *notif_types)
{
const enum bt_notification_type *notif_type;
switch (*notif_type) {
case BT_NOTIFICATION_TYPE_ALL:
iterator->subscription_mask |=
- BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_EVENT |
- BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_INACTIVITY |
- BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_BEGIN |
- BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_END |
- BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_BEGIN |
- BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_END;
+ BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_EVENT |
+ BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_INACTIVITY |
+ BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_BEGIN |
+ BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_END |
+ BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_BEGIN |
+ BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_END |
+ BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_DISCARDED_EVENTS |
+ BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_DISCARDED_PACKETS;
break;
case BT_NOTIFICATION_TYPE_EVENT:
- iterator->subscription_mask |= BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_EVENT;
+ iterator->subscription_mask |= BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_EVENT;
break;
case BT_NOTIFICATION_TYPE_INACTIVITY:
- iterator->subscription_mask |= BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_INACTIVITY;
+ iterator->subscription_mask |= BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_INACTIVITY;
break;
case BT_NOTIFICATION_TYPE_STREAM_BEGIN:
- iterator->subscription_mask |= BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_BEGIN;
+ iterator->subscription_mask |= BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_BEGIN;
break;
case BT_NOTIFICATION_TYPE_STREAM_END:
- iterator->subscription_mask |= BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_END;
+ iterator->subscription_mask |= BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_END;
break;
case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
- iterator->subscription_mask |= BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_BEGIN;
+ iterator->subscription_mask |= BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_BEGIN;
break;
case BT_NOTIFICATION_TYPE_PACKET_END:
- iterator->subscription_mask |= BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_END;
+ iterator->subscription_mask |= BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_END;
+ break;
+ case BT_NOTIFICATION_TYPE_DISCARDED_EVENTS:
+ iterator->subscription_mask |= BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_DISCARDED_EVENTS;
+ break;
+ case BT_NOTIFICATION_TYPE_DISCARDED_PACKETS:
+ iterator->subscription_mask |= BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_DISCARDED_PACKETS;
break;
default:
ret = -1;
goto end;
}
+
+ BT_LOGV("Added notification type to subscription mask: "
+ "type=%s, mask=%x",
+ bt_notification_type_string(*notif_type),
+ iterator->subscription_mask);
}
end:
return ret;
}
+static
+void init_notification_iterator(struct bt_notification_iterator *iterator,
+ enum bt_notification_iterator_type type,
+ bt_object_release_func destroy)
+{
+ bt_object_init(iterator, destroy);
+ iterator->type = type;
+}
+
BT_HIDDEN
-struct bt_notification_iterator *bt_notification_iterator_create(
+enum bt_connection_status bt_private_connection_notification_iterator_create(
struct bt_component *upstream_comp,
struct bt_port *upstream_port,
const enum bt_notification_type *notification_types,
- struct bt_connection *connection)
+ struct bt_connection *connection,
+ struct bt_notification_iterator_private_connection **user_iterator)
{
+ enum bt_connection_status status = BT_CONNECTION_STATUS_OK;
enum bt_component_class_type type;
- struct bt_notification_iterator *iterator = NULL;
+ struct bt_notification_iterator_private_connection *iterator = NULL;
assert(upstream_comp);
assert(upstream_port);
assert(notification_types);
assert(bt_port_is_connected(upstream_port));
-
+ assert(user_iterator);
+ BT_LOGD("Creating notification iterator on private connection: "
+ "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
+ "upstream-port-addr=%p, upstream-port-name=\"%s\", "
+ "conn-addr=%p",
+ upstream_comp, bt_component_get_name(upstream_comp),
+ upstream_port, bt_port_get_name(upstream_port),
+ connection);
type = bt_component_get_class_type(upstream_comp);
- switch (type) {
- case BT_COMPONENT_CLASS_TYPE_SOURCE:
- case BT_COMPONENT_CLASS_TYPE_FILTER:
- break;
- default:
- goto error;
- }
-
- iterator = g_new0(struct bt_notification_iterator, 1);
+ assert(type == BT_COMPONENT_CLASS_TYPE_SOURCE ||
+ type == BT_COMPONENT_CLASS_TYPE_FILTER);
+ iterator = g_new0(struct bt_notification_iterator_private_connection, 1);
if (!iterator) {
- goto error;
+ BT_LOGE_STR("Failed to allocate one private connection notification iterator.");
+ status = BT_CONNECTION_STATUS_NOMEM;
+ goto end;
}
- bt_object_init(iterator, bt_notification_iterator_destroy);
+ init_notification_iterator((void *) iterator,
+ BT_NOTIFICATION_ITERATOR_TYPE_PRIVATE_CONNECTION,
+ bt_private_connection_notification_iterator_destroy);
if (create_subscription_mask_from_notification_types(iterator,
notification_types)) {
- goto error;
+ BT_LOGW_STR("Cannot create subscription mask from notification types.");
+ status = BT_CONNECTION_STATUS_INVALID;
+ goto end;
}
iterator->stream_states = g_hash_table_new_full(g_direct_hash,
g_direct_equal, NULL, (GDestroyNotify) destroy_stream_state);
if (!iterator->stream_states) {
- goto error;
+ BT_LOGE_STR("Failed to allocate a GHashTable.");
+ status = BT_CONNECTION_STATUS_NOMEM;
+ goto end;
}
iterator->queue = g_queue_new();
if (!iterator->queue) {
- goto error;
+ BT_LOGE_STR("Failed to allocate a GQueue.");
+ status = BT_CONNECTION_STATUS_NOMEM;
+ goto end;
}
iterator->actions = g_array_new(FALSE, FALSE, sizeof(struct action));
if (!iterator->actions) {
- goto error;
+ BT_LOGE_STR("Failed to allocate a GArray.");
+ status = BT_CONNECTION_STATUS_NOMEM;
+ goto end;
}
iterator->upstream_component = upstream_comp;
iterator->upstream_port = upstream_port;
iterator->connection = connection;
- iterator->state = BT_NOTIFICATION_ITERATOR_STATE_ACTIVE;
- goto end;
-
-error:
- BT_PUT(iterator);
+ iterator->state = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_NON_INITIALIZED;
+ BT_LOGD("Created notification iterator: "
+ "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
+ "upstream-port-addr=%p, upstream-port-name=\"%s\", "
+ "conn-addr=%p, iter-addr=%p",
+ upstream_comp, bt_component_get_name(upstream_comp),
+ upstream_port, bt_port_get_name(upstream_port),
+ connection, iterator);
+
+ /* Move reference to user */
+ *user_iterator = iterator;
+ iterator = NULL;
end:
- return iterator;
-}
-
-BT_HIDDEN
-enum bt_notification_iterator_status bt_notification_iterator_validate(
- struct bt_notification_iterator *iterator)
-{
- enum bt_notification_iterator_status ret =
- BT_NOTIFICATION_ITERATOR_STATUS_OK;
-
- if (!iterator) {
- ret = BT_NOTIFICATION_ITERATOR_STATUS_INVALID;
- goto end;
- }
-end:
- return ret;
+ bt_put(iterator);
+ return status;
}
-void *bt_private_notification_iterator_get_user_data(
- struct bt_private_notification_iterator *private_iterator)
+void *bt_private_connection_private_notification_iterator_get_user_data(
+ struct bt_private_connection_private_notification_iterator *private_iterator)
{
- struct bt_notification_iterator *iterator =
- bt_notification_iterator_from_private(private_iterator);
+ struct bt_notification_iterator_private_connection *iterator =
+ bt_private_connection_notification_iterator_borrow_from_private(private_iterator);
return iterator ? iterator->user_data : NULL;
}
enum bt_notification_iterator_status
-bt_private_notification_iterator_set_user_data(
- struct bt_private_notification_iterator *private_iterator,
+bt_private_connection_private_notification_iterator_set_user_data(
+ struct bt_private_connection_private_notification_iterator *private_iterator,
void *data)
{
enum bt_notification_iterator_status ret =
BT_NOTIFICATION_ITERATOR_STATUS_OK;
- struct bt_notification_iterator *iterator =
- bt_notification_iterator_from_private(private_iterator);
+ struct bt_notification_iterator_private_connection *iterator =
+ bt_private_connection_notification_iterator_borrow_from_private(private_iterator);
if (!iterator) {
+ BT_LOGW_STR("Invalid parameter: notification iterator is NULL.");
ret = BT_NOTIFICATION_ITERATOR_STATUS_INVALID;
goto end;
}
iterator->user_data = data;
+ BT_LOGV("Set notification iterator's user data: "
+ "iter-addr=%p, user-data-addr=%p", iterator, data);
+
end:
return ret;
}
struct bt_notification *notification = NULL;
if (!iterator) {
+ BT_LOGW_STR("Invalid parameter: notification iterator is NULL.");
goto end;
}
- notification = bt_get(iterator->current_notification);
+ notification = bt_get(
+ bt_notification_iterator_borrow_current_notification(iterator));
end:
return notification;
}
static
-enum bt_notification_iterator_notif_type
+enum bt_private_connection_notification_iterator_notif_type
bt_notification_iterator_notif_type_from_notif_type(
enum bt_notification_type notif_type)
{
- enum bt_notification_iterator_notif_type iter_notif_type;
+ enum bt_private_connection_notification_iterator_notif_type iter_notif_type;
switch (notif_type) {
case BT_NOTIFICATION_TYPE_EVENT:
- iter_notif_type = BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_EVENT;
+ iter_notif_type = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_EVENT;
break;
case BT_NOTIFICATION_TYPE_INACTIVITY:
- iter_notif_type = BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_INACTIVITY;
+ iter_notif_type = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_INACTIVITY;
break;
case BT_NOTIFICATION_TYPE_STREAM_BEGIN:
- iter_notif_type = BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_BEGIN;
+ iter_notif_type = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_BEGIN;
break;
case BT_NOTIFICATION_TYPE_STREAM_END:
- iter_notif_type = BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_END;
+ iter_notif_type = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_END;
break;
case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
- iter_notif_type = BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_BEGIN;
+ iter_notif_type = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_BEGIN;
break;
case BT_NOTIFICATION_TYPE_PACKET_END:
- iter_notif_type = BT_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_END;
+ iter_notif_type = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_END;
+ break;
+ case BT_NOTIFICATION_TYPE_DISCARDED_EVENTS:
+ iter_notif_type = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_DISCARDED_EVENTS;
+ break;
+ case BT_NOTIFICATION_TYPE_DISCARDED_PACKETS:
+ iter_notif_type = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_DISCARDED_PACKETS;
break;
default:
- assert(BT_FALSE);
+ abort();
}
return iter_notif_type;
}
static
-bt_bool validate_notification(struct bt_notification_iterator *iterator,
+bt_bool validate_notification(
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_notification *notif,
- struct bt_ctf_stream *notif_stream,
- struct bt_ctf_packet *notif_packet)
+ struct bt_stream *notif_stream,
+ struct bt_packet *notif_packet)
{
bt_bool is_valid = BT_TRUE;
struct stream_state *stream_state;
assert(notif_stream);
stream_comp_cur_port =
- bt_ctf_stream_port_for_component(notif_stream,
+ bt_stream_port_for_component(notif_stream,
iterator->upstream_component);
if (!stream_comp_cur_port) {
/*
* bad: the API guarantees that it can never
* happen.
*/
+ BT_LOGW("Two different ports of the same component are emitting notifications which refer to the same stream: "
+ "stream-addr=%p, stream-name=\"%s\", "
+ "stream-comp-cur-port-addr=%p, "
+ "stream-comp-cur-port-name=%p, "
+ "iter-upstream-port-addr=%p, "
+ "iter-upstream-port-name=%s",
+ notif_stream,
+ bt_stream_get_name(notif_stream),
+ stream_comp_cur_port,
+ bt_port_get_name(stream_comp_cur_port),
+ iterator->upstream_port,
+ bt_port_get_name(iterator->upstream_port));
is_valid = BT_FALSE;
goto end;
}
stream_state = g_hash_table_lookup(iterator->stream_states,
notif_stream);
if (stream_state) {
+ BT_LOGV("Stream state already exists: "
+ "stream-addr=%p, stream-name=\"%s\", "
+ "stream-state-addr=%p",
+ notif_stream,
+ bt_stream_get_name(notif_stream), stream_state);
+
if (stream_state->is_ended) {
/*
* There's a new notification which has a
* bad: the API guarantees that it can never
* happen.
*/
+ BT_LOGW("Stream is already ended: "
+ "stream-addr=%p, stream-name=\"%s\"",
+ notif_stream,
+ bt_stream_get_name(notif_stream));
is_valid = BT_FALSE;
goto end;
}
* we already returned a "stream begin"
* notification: this is an invalid duplicate.
*/
+ BT_LOGW("Duplicate stream beginning notification: "
+ "stream-addr=%p, stream-name=\"%s\"",
+ notif_stream,
+ bt_stream_get_name(notif_stream));
is_valid = BT_FALSE;
goto end;
case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
if (notif_packet == stream_state->cur_packet) {
/* Duplicate "packet begin" notification */
+ BT_LOGW("Duplicate stream beginning notification: "
+ "stream-addr=%p, stream-name=\"%s\", "
+ "packet-addr=%p",
+ notif_stream,
+ bt_stream_get_name(notif_stream),
+ notif_packet);
is_valid = BT_FALSE;
goto end;
}
}
static
-bt_bool is_subscribed_to_notification_type(struct bt_notification_iterator *iterator,
+bt_bool is_subscribed_to_notification_type(
+ struct bt_notification_iterator_private_connection *iterator,
enum bt_notification_type notif_type)
{
uint32_t iter_notif_type =
}
static
-void add_action_push_notif(struct bt_notification_iterator *iterator,
+void add_action_push_notif(
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_notification *notif)
{
struct action action = {
action.payload.push_notif.notif = bt_get(notif);
add_action(iterator, &action);
+ BT_LOGV("Added \"push notification\" action: notif-addr=%p", notif);
}
static
int add_action_push_notif_stream_begin(
- struct bt_notification_iterator *iterator,
- struct bt_ctf_stream *stream)
+ struct bt_notification_iterator_private_connection *iterator,
+ struct bt_stream *stream)
{
int ret = 0;
struct bt_notification *stream_begin_notif = NULL;
if (!is_subscribed_to_notification_type(iterator,
BT_NOTIFICATION_TYPE_STREAM_BEGIN)) {
+ BT_LOGV("Not adding \"push stream beginning notification\" action: "
+ "notification iterator is not subscribed: addr=%p",
+ iterator);
goto end;
}
assert(stream);
stream_begin_notif = bt_notification_stream_begin_create(stream);
if (!stream_begin_notif) {
+ BT_LOGE_STR("Cannot create stream beginning notification.");
goto error;
}
add_action_push_notif(iterator, stream_begin_notif);
+ BT_LOGV("Added \"push stream beginning notification\" action: "
+ "stream-addr=%p, stream-name=\"%s\"",
+ stream, bt_stream_get_name(stream));
goto end;
error:
static
int add_action_push_notif_stream_end(
- struct bt_notification_iterator *iterator,
- struct bt_ctf_stream *stream)
+ struct bt_notification_iterator_private_connection *iterator,
+ struct bt_stream *stream)
{
int ret = 0;
struct bt_notification *stream_end_notif = NULL;
if (!is_subscribed_to_notification_type(iterator,
BT_NOTIFICATION_TYPE_STREAM_END)) {
+ BT_LOGV("Not adding \"push stream end notification\" action: "
+ "notification iterator is not subscribed: addr=%p",
+ iterator);
goto end;
}
assert(stream);
stream_end_notif = bt_notification_stream_end_create(stream);
if (!stream_end_notif) {
+ BT_LOGE_STR("Cannot create stream end notification.");
goto error;
}
add_action_push_notif(iterator, stream_end_notif);
+ BT_LOGV("Added \"push stream end notification\" action: "
+ "stream-addr=%p, stream-name=\"%s\"",
+ stream, bt_stream_get_name(stream));
goto end;
error:
static
int add_action_push_notif_packet_begin(
- struct bt_notification_iterator *iterator,
- struct bt_ctf_packet *packet)
+ struct bt_notification_iterator_private_connection *iterator,
+ struct bt_packet *packet)
{
int ret = 0;
struct bt_notification *packet_begin_notif = NULL;
if (!is_subscribed_to_notification_type(iterator,
BT_NOTIFICATION_TYPE_PACKET_BEGIN)) {
+ BT_LOGV("Not adding \"push packet beginning notification\" action: "
+ "notification iterator is not subscribed: addr=%p",
+ iterator);
goto end;
}
assert(packet);
packet_begin_notif = bt_notification_packet_begin_create(packet);
if (!packet_begin_notif) {
+ BT_LOGE_STR("Cannot create packet beginning notification.");
goto error;
}
add_action_push_notif(iterator, packet_begin_notif);
+ BT_LOGV("Added \"push packet beginning notification\" action: "
+ "packet-addr=%p", packet);
goto end;
error:
static
int add_action_push_notif_packet_end(
- struct bt_notification_iterator *iterator,
- struct bt_ctf_packet *packet)
+ struct bt_notification_iterator_private_connection *iterator,
+ struct bt_packet *packet)
{
int ret = 0;
struct bt_notification *packet_end_notif = NULL;
if (!is_subscribed_to_notification_type(iterator,
BT_NOTIFICATION_TYPE_PACKET_END)) {
+ BT_LOGV("Not adding \"push packet end notification\" action: "
+ "notification iterator is not subscribed: addr=%p",
+ iterator);
goto end;
}
assert(packet);
packet_end_notif = bt_notification_packet_end_create(packet);
if (!packet_end_notif) {
+ BT_LOGE_STR("Cannot create packet end notification.");
goto error;
}
add_action_push_notif(iterator, packet_end_notif);
+ BT_LOGV("Added \"push packet end notification\" action: "
+ "packet-addr=%p", packet);
goto end;
error:
static
void add_action_set_stream_state_is_ended(
- struct bt_notification_iterator *iterator,
+ struct bt_notification_iterator_private_connection *iterator,
struct stream_state *stream_state)
{
struct action action = {
assert(stream_state);
add_action(iterator, &action);
+ BT_LOGV("Added \"set stream state's ended\" action: "
+ "stream-state-addr=%p", stream_state);
}
static
void add_action_set_stream_state_cur_packet(
- struct bt_notification_iterator *iterator,
+ struct bt_notification_iterator_private_connection *iterator,
struct stream_state *stream_state,
- struct bt_ctf_packet *packet)
+ struct bt_packet *packet)
{
struct action action = {
.type = ACTION_TYPE_SET_STREAM_STATE_CUR_PACKET,
assert(stream_state);
add_action(iterator, &action);
+ BT_LOGV("Added \"set stream state's current packet\" action: "
+ "stream-state-addr=%p, packet-addr=%p",
+ stream_state, packet);
+}
+
+static
+void add_action_update_stream_state_discarded_elements(
+ struct bt_notification_iterator_private_connection *iterator,
+ enum action_type type,
+ struct stream_state *stream_state,
+ struct bt_clock_value *cur_begin,
+ uint64_t cur_count)
+{
+ struct action action = {
+ .type = type,
+ .payload.update_stream_state_discarded_elements = {
+ .stream_state = stream_state,
+ .cur_begin = bt_get(cur_begin),
+ .cur_count = cur_count,
+ },
+ };
+
+ assert(stream_state);
+ assert(type == ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_PACKETS ||
+ type == ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_EVENTS);
+ add_action(iterator, &action);
+ if (type == ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_PACKETS) {
+ BT_LOGV("Added \"update stream state's discarded packets\" action: "
+ "stream-state-addr=%p, cur-begin-addr=%p, cur-count=%" PRIu64,
+ stream_state, cur_begin, cur_count);
+ } else if (type == ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_EVENTS) {
+ BT_LOGV("Added \"update stream state's discarded events\" action: "
+ "stream-state-addr=%p, cur-begin-addr=%p, cur-count=%" PRIu64,
+ stream_state, cur_begin, cur_count);
+ }
}
static
-int ensure_stream_state_exists(struct bt_notification_iterator *iterator,
+int ensure_stream_state_exists(
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_notification *stream_begin_notif,
- struct bt_ctf_stream *notif_stream,
- struct stream_state **stream_state)
+ struct bt_stream *notif_stream,
+ struct stream_state **_stream_state)
{
int ret = 0;
+ struct stream_state *stream_state = NULL;
if (!notif_stream) {
/*
goto end;
}
- *stream_state = g_hash_table_lookup(iterator->stream_states,
+ stream_state = g_hash_table_lookup(iterator->stream_states,
notif_stream);
- if (!*stream_state) {
+ if (!stream_state) {
/*
* This iterator did not bump into this stream yet:
* create a stream state and a "stream begin"
},
};
- *stream_state = create_stream_state(notif_stream);
+ stream_state = create_stream_state(notif_stream);
if (!stream_state) {
+ BT_LOGE_STR("Cannot create stream state.");
goto error;
}
- action.payload.add_stream_state.stream_state =
- *stream_state;
+ action.payload.add_stream_state.stream_state = stream_state;
add_action(iterator, &action);
if (stream_begin_notif) {
ret = add_action_push_notif_stream_begin(iterator,
notif_stream);
if (ret) {
+ BT_LOGE_STR("Cannot add \"push stream beginning notification\" action.");
goto error;
}
}
}
-
goto end;
error:
- destroy_stream_state(*stream_state);
+ destroy_stream_state(stream_state);
+ stream_state = NULL;
ret = -1;
end:
+ *_stream_state = stream_state;
+ return ret;
+}
+
+static
+struct bt_field *get_struct_field_uint(struct bt_field *struct_field,
+ const char *field_name)
+{
+ struct bt_field *field = NULL;
+ struct bt_field_type *ft = NULL;
+
+ field = bt_field_structure_get_field_by_name(struct_field,
+ field_name);
+ if (!field) {
+ BT_LOGV_STR("`%s` field does not exist.");
+ goto end;
+ }
+
+ if (!bt_field_is_integer(field)) {
+ BT_LOGV("Skipping `%s` field because its type is not an integer field type: "
+ "field-addr=%p, ft-addr=%p, ft-id=%s", field_name,
+ field, ft, bt_field_type_id_string(
+ bt_field_type_get_type_id(ft)));
+ BT_PUT(field);
+ goto end;
+ }
+
+ ft = bt_field_get_type(field);
+ assert(ft);
+
+ if (bt_field_type_integer_is_signed(ft)) {
+ BT_LOGV("Skipping `%s` integer field because its type is signed: "
+ "field-addr=%p, ft-addr=%p", field_name, field, ft);
+ BT_PUT(field);
+ goto end;
+ }
+
+end:
+ bt_put(ft);
+ return field;
+}
+
+static
+uint64_t get_packet_context_events_discarded(struct bt_packet *packet)
+{
+ struct bt_field *packet_context = NULL;
+ struct bt_field *field = NULL;
+ uint64_t retval = -1ULL;
+ int ret;
+
+ packet_context = bt_packet_get_context(packet);
+ if (!packet_context) {
+ goto end;
+ }
+
+ field = get_struct_field_uint(packet_context, "events_discarded");
+ if (!field) {
+ BT_LOGV("`events_discarded` field does not exist in packet's context field: "
+ "packet-addr=%p, packet-context-field-addr=%p",
+ packet, packet_context);
+ goto end;
+ }
+
+ assert(bt_field_is_integer(field));
+ ret = bt_field_unsigned_integer_get_value(field, &retval);
+ if (ret) {
+ BT_LOGV("Cannot get raw value of packet's context field's `events_discarded` integer field: "
+ "packet-addr=%p, field-addr=%p",
+ packet, field);
+ retval = -1ULL;
+ goto end;
+ }
+
+end:
+ bt_put(packet_context);
+ bt_put(field);
+ return retval;
+}
+
+static
+uint64_t get_packet_context_packet_seq_num(struct bt_packet *packet)
+{
+ struct bt_field *packet_context = NULL;
+ struct bt_field *field = NULL;
+ uint64_t retval = -1ULL;
+ int ret;
+
+ packet_context = bt_packet_get_context(packet);
+ if (!packet_context) {
+ goto end;
+ }
+
+ field = get_struct_field_uint(packet_context, "packet_seq_num");
+ if (!field) {
+ BT_LOGV("`packet_seq_num` field does not exist in packet's context field: "
+ "packet-addr=%p, packet-context-field-addr=%p",
+ packet, packet_context);
+ goto end;
+ }
+
+ assert(bt_field_is_integer(field));
+ ret = bt_field_unsigned_integer_get_value(field, &retval);
+ if (ret) {
+ BT_LOGV("Cannot get raw value of packet's context field's `packet_seq_num` integer field: "
+ "packet-addr=%p, field-addr=%p",
+ packet, field);
+ retval = -1ULL;
+ goto end;
+ }
+
+end:
+ bt_put(packet_context);
+ bt_put(field);
+ return retval;
+}
+
+static
+int handle_discarded_packets(
+ struct bt_notification_iterator_private_connection *iterator,
+ struct bt_packet *packet,
+ struct bt_clock_value *ts_begin,
+ struct bt_clock_value *ts_end,
+ struct stream_state *stream_state)
+{
+ struct bt_notification *notif = NULL;
+ uint64_t diff;
+ uint64_t prev_count, next_count;
+ int ret = 0;
+
+ next_count = get_packet_context_packet_seq_num(packet);
+ if (next_count == -1ULL) {
+ /*
+ * Stream does not have seqnum field, skip discarded
+ * packets feature.
+ */
+ goto end;
+ }
+ prev_count = stream_state->discarded_packets_state.cur_count;
+
+ if (prev_count != -1ULL) {
+ if (next_count < prev_count) {
+ BT_LOGW("Current value of packet's context field's `packet_seq_num` field is lesser than the previous value for the same stream: "
+ "not updating the stream state's current value: "
+ "packet-addr=%p, prev-count=%" PRIu64 ", "
+ "cur-count=%" PRIu64,
+ packet, prev_count, next_count);
+ goto end;
+ }
+ if (next_count == prev_count) {
+ BT_LOGW("Current value of packet's context field's `packet_seq_num` field is equal to the previous value for the same stream: "
+ "not updating the stream state's current value: "
+ "packet-addr=%p, prev-count=%" PRIu64 ", "
+ "cur-count=%" PRIu64,
+ packet, prev_count, next_count);
+ goto end;
+ }
+
+ diff = next_count - prev_count;
+ if (diff > 1) {
+ /*
+ * Add a discarded packets notification. The packets
+ * are considered to be lost between the state's last time
+ * and the current packet's beginning time.
+ * The counter is expected to monotonically increase of
+ * 1 for each packet. Therefore, the number of missing
+ * packets is 'diff - 1'.
+ */
+ notif = bt_notification_discarded_elements_create(
+ BT_NOTIFICATION_TYPE_DISCARDED_PACKETS,
+ stream_state->stream,
+ stream_state->discarded_packets_state.cur_begin,
+ ts_begin, diff - 1);
+ if (!notif) {
+ BT_LOGE_STR("Cannot create discarded packets notification.");
+ ret = -1;
+ goto end;
+ }
+
+ add_action_push_notif(iterator, notif);
+ }
+ }
+
+ add_action_update_stream_state_discarded_elements(iterator,
+ ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_PACKETS,
+ stream_state, ts_end, next_count);
+
+end:
+ bt_put(notif);
+ return ret;
+}
+
+static
+int handle_discarded_events(
+ struct bt_notification_iterator_private_connection *iterator,
+ struct bt_packet *packet,
+ struct bt_clock_value *ts_begin,
+ struct bt_clock_value *ts_end,
+ struct stream_state *stream_state)
+{
+ struct bt_notification *notif = NULL;
+ uint64_t diff;
+ uint64_t next_count;
+ int ret = 0;
+
+ next_count = get_packet_context_events_discarded(packet);
+ if (next_count == -1ULL) {
+ next_count = stream_state->discarded_events_state.cur_count;
+ goto update_state;
+ }
+
+ if (next_count < stream_state->discarded_events_state.cur_count) {
+ BT_LOGW("Current value of packet's context field's `events_discarded` field is lesser than the previous value for the same stream: "
+ "not updating the stream state's current value: "
+ "packet-addr=%p, prev-count=%" PRIu64 ", "
+ "cur-count=%" PRIu64,
+ packet, stream_state->discarded_events_state.cur_count,
+ next_count);
+ goto end;
+ }
+
+ diff = next_count - stream_state->discarded_events_state.cur_count;
+ if (diff > 0) {
+ /*
+ * Add a discarded events notification. The events are
+ * considered to be lost betweem the state's last time
+ * and the current packet's end time.
+ */
+ notif = bt_notification_discarded_elements_create(
+ BT_NOTIFICATION_TYPE_DISCARDED_EVENTS,
+ stream_state->stream,
+ stream_state->discarded_events_state.cur_begin,
+ ts_end, diff);
+ if (!notif) {
+ BT_LOGE_STR("Cannot create discarded events notification.");
+ ret = -1;
+ goto end;
+ }
+
+ add_action_push_notif(iterator, notif);
+ }
+
+update_state:
+ add_action_update_stream_state_discarded_elements(iterator,
+ ACTION_TYPE_UPDATE_STREAM_STATE_DISCARDED_EVENTS,
+ stream_state, ts_end, next_count);
+
+end:
+ bt_put(notif);
return ret;
}
static
-int handle_packet_switch(struct bt_notification_iterator *iterator,
+int get_field_clock_value(struct bt_field *root_field,
+ const char *field_name,
+ struct bt_clock_value **user_clock_val)
+{
+ struct bt_field *field;
+ struct bt_field_type *ft = NULL;
+ struct bt_clock_class *clock_class = NULL;
+ struct bt_clock_value *clock_value = NULL;
+ uint64_t val;
+ int ret = 0;
+
+ field = get_struct_field_uint(root_field, field_name);
+ if (!field) {
+ /* Not an error: skip this */
+ goto end;
+ }
+
+ ft = bt_field_get_type(field);
+ assert(ft);
+ clock_class = bt_field_type_integer_get_mapped_clock_class(ft);
+ if (!clock_class) {
+ BT_LOGW("Integer field type has no mapped clock class but it's expected to have one: "
+ "ft-addr=%p", ft);
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_field_unsigned_integer_get_value(field, &val);
+ if (ret) {
+ BT_LOGW("Cannot get integer field's raw value: "
+ "field-addr=%p", field);
+ ret = -1;
+ goto end;
+ }
+
+ clock_value = bt_clock_value_create(clock_class, val);
+ if (!clock_value) {
+ BT_LOGE_STR("Cannot create clock value from clock class.");
+ ret = -1;
+ goto end;
+ }
+
+ /* Move clock value to user */
+ *user_clock_val = clock_value;
+ clock_value = NULL;
+
+end:
+ bt_put(field);
+ bt_put(ft);
+ bt_put(clock_class);
+ bt_put(clock_value);
+ return ret;
+}
+
+static
+int get_ts_begin_ts_end_from_packet(struct bt_packet *packet,
+ struct bt_clock_value **user_ts_begin,
+ struct bt_clock_value **user_ts_end)
+{
+ struct bt_field *packet_context = NULL;
+ struct bt_clock_value *ts_begin = NULL;
+ struct bt_clock_value *ts_end = NULL;
+ int ret = 0;
+
+ packet_context = bt_packet_get_context(packet);
+ if (!packet_context) {
+ goto end;
+ }
+
+ ret = get_field_clock_value(packet_context, "timestamp_begin",
+ &ts_begin);
+ if (ret) {
+ BT_LOGW("Cannot create clock value for packet context's `timestamp_begin` field: "
+ "packet-addr=%p, packet-context-field-addr=%p",
+ packet, packet_context);
+ goto end;
+ }
+
+ ret = get_field_clock_value(packet_context, "timestamp_end",
+ &ts_end);
+ if (ret) {
+ BT_LOGW("Cannot create clock value for packet context's `timestamp_begin` field: "
+ "packet-addr=%p, packet-context-field-addr=%p",
+ packet, packet_context);
+ goto end;
+ }
+
+ /* Move clock values to user */
+ *user_ts_begin = ts_begin;
+ ts_begin = NULL;
+ *user_ts_end = ts_end;
+ ts_end = NULL;
+
+end:
+ bt_put(packet_context);
+ bt_put(ts_begin);
+ bt_put(ts_end);
+ return ret;
+}
+
+static
+int handle_discarded_elements(
+ struct bt_notification_iterator_private_connection *iterator,
+ struct bt_packet *packet, struct stream_state *stream_state)
+{
+ struct bt_clock_value *ts_begin = NULL;
+ struct bt_clock_value *ts_end = NULL;
+ int ret;
+
+ ret = get_ts_begin_ts_end_from_packet(packet, &ts_begin, &ts_end);
+ if (ret) {
+ BT_LOGW("Cannot get packet's beginning or end clock values: "
+ "packet-addr=%p, ret=%d", packet, ret);
+ ret = -1;
+ goto end;
+ }
+
+ ret = handle_discarded_packets(iterator, packet, ts_begin, ts_end,
+ stream_state);
+ if (ret) {
+ BT_LOGW("Cannot handle discarded packets for packet: "
+ "packet-addr=%p, ret=%d", packet, ret);
+ ret = -1;
+ goto end;
+ }
+
+ ret = handle_discarded_events(iterator, packet, ts_begin, ts_end,
+ stream_state);
+ if (ret) {
+ BT_LOGW("Cannot handle discarded events for packet: "
+ "packet-addr=%p, ret=%d", packet, ret);
+ ret = -1;
+ goto end;
+ }
+
+end:
+ bt_put(ts_begin);
+ bt_put(ts_end);
+ return ret;
+}
+
+static
+int handle_packet_switch(
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_notification *packet_begin_notif,
- struct bt_ctf_packet *new_packet,
+ struct bt_packet *new_packet,
struct stream_state *stream_state)
{
int ret = 0;
goto end;
}
+ BT_LOGV("Handling packet switch: "
+ "cur-packet-addr=%p, new-packet-addr=%p",
+ stream_state->cur_packet, new_packet);
+
if (stream_state->cur_packet) {
/* End of the current packet */
ret = add_action_push_notif_packet_end(iterator,
stream_state->cur_packet);
if (ret) {
+ BT_LOGE_STR("Cannot add \"push packet end notification\" action.");
goto error;
}
}
+ /*
+ * Check the new packet's context fields for discarded packets
+ * and events to emit those automatic notifications.
+ */
+ ret = handle_discarded_elements(iterator, new_packet, stream_state);
+ if (ret) {
+ BT_LOGE_STR("Cannot handle discarded elements for new packet.");
+ goto error;
+ }
+
/* Beginning of the new packet */
if (packet_begin_notif) {
add_action_push_notif(iterator, packet_begin_notif);
ret = add_action_push_notif_packet_begin(iterator,
new_packet);
if (ret) {
+ BT_LOGE_STR("Cannot add \"push packet beginning notification\" action.");
goto error;
}
}
static
int handle_notif_stream_begin(
- struct bt_notification_iterator *iterator,
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_notification *notif,
- struct bt_ctf_stream *notif_stream)
+ struct bt_stream *notif_stream)
{
int ret = 0;
struct stream_state *stream_state;
ret = ensure_stream_state_exists(iterator, notif, notif_stream,
&stream_state);
if (ret) {
+ BT_LOGE_STR("Cannot ensure that stream state exists.");
goto error;
}
static
int handle_notif_stream_end(
- struct bt_notification_iterator *iterator,
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_notification *notif,
- struct bt_ctf_stream *notif_stream)
+ struct bt_stream *notif_stream)
{
int ret = 0;
struct stream_state *stream_state;
ret = ensure_stream_state_exists(iterator, NULL, notif_stream,
&stream_state);
if (ret) {
+ BT_LOGE_STR("Cannot ensure that stream state exists.");
goto error;
}
ret = handle_packet_switch(iterator, NULL, NULL, stream_state);
if (ret) {
+ BT_LOGE_STR("Cannot handle packet switch.");
goto error;
}
return ret;
}
+static
+int handle_notif_discarded_elements(
+ struct bt_notification_iterator_private_connection *iterator,
+ struct bt_notification *notif,
+ struct bt_stream *notif_stream)
+{
+ int ret = 0;
+ struct stream_state *stream_state;
+
+ assert(notif->type == BT_NOTIFICATION_TYPE_DISCARDED_EVENTS ||
+ notif->type == BT_NOTIFICATION_TYPE_DISCARDED_PACKETS);
+ assert(notif_stream);
+ ret = ensure_stream_state_exists(iterator, NULL, notif_stream,
+ &stream_state);
+ if (ret) {
+ BT_LOGE_STR("Cannot ensure that stream state exists.");
+ goto error;
+ }
+
+ add_action_push_notif(iterator, notif);
+ goto end;
+
+error:
+ ret = -1;
+
+end:
+ return ret;
+}
+
static
int handle_notif_packet_begin(
- struct bt_notification_iterator *iterator,
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_notification *notif,
- struct bt_ctf_stream *notif_stream,
- struct bt_ctf_packet *notif_packet)
+ struct bt_stream *notif_stream,
+ struct bt_packet *notif_packet)
{
int ret = 0;
struct stream_state *stream_state;
ret = ensure_stream_state_exists(iterator, NULL, notif_stream,
&stream_state);
if (ret) {
+ BT_LOGE_STR("Cannot ensure that stream state exists.");
goto error;
}
ret = handle_packet_switch(iterator, notif, notif_packet, stream_state);
if (ret) {
+ BT_LOGE_STR("Cannot handle packet switch.");
goto error;
}
static
int handle_notif_packet_end(
- struct bt_notification_iterator *iterator,
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_notification *notif,
- struct bt_ctf_stream *notif_stream,
- struct bt_ctf_packet *notif_packet)
+ struct bt_stream *notif_stream,
+ struct bt_packet *notif_packet)
{
int ret = 0;
struct stream_state *stream_state;
ret = ensure_stream_state_exists(iterator, NULL, notif_stream,
&stream_state);
if (ret) {
+ BT_LOGE_STR("Cannot ensure that stream state exists.");
goto error;
}
ret = handle_packet_switch(iterator, NULL, notif_packet, stream_state);
if (ret) {
+ BT_LOGE_STR("Cannot handle packet switch.");
goto error;
}
static
int handle_notif_event(
- struct bt_notification_iterator *iterator,
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_notification *notif,
- struct bt_ctf_stream *notif_stream,
- struct bt_ctf_packet *notif_packet)
+ struct bt_stream *notif_stream,
+ struct bt_packet *notif_packet)
{
int ret = 0;
struct stream_state *stream_state;
ret = ensure_stream_state_exists(iterator, NULL, notif_stream,
&stream_state);
if (ret) {
+ BT_LOGE_STR("Cannot ensure that stream state exists.");
goto error;
}
ret = handle_packet_switch(iterator, NULL, notif_packet, stream_state);
if (ret) {
+ BT_LOGE_STR("Cannot handle packet switch.");
goto error;
}
static
int enqueue_notification_and_automatic(
- struct bt_notification_iterator *iterator,
+ struct bt_notification_iterator_private_connection *iterator,
struct bt_notification *notif)
{
int ret = 0;
- struct bt_ctf_event *notif_event = NULL;
- struct bt_ctf_stream *notif_stream = NULL;
- struct bt_ctf_packet *notif_packet = NULL;
+ struct bt_event *notif_event = NULL;
+ struct bt_stream *notif_stream = NULL;
+ struct bt_packet *notif_packet = NULL;
assert(notif);
+ BT_LOGV("Enqueuing user notification and automatic notifications: "
+ "iter-addr=%p, notif-addr=%p", iterator, notif);
+
// TODO: Skip most of this if the iterator is only subscribed
// to event/inactivity notifications.
case BT_NOTIFICATION_TYPE_EVENT:
notif_event = bt_notification_event_borrow_event(notif);
assert(notif_event);
- notif_packet = bt_ctf_event_borrow_packet(notif_event);
+ notif_packet = bt_event_borrow_packet(notif_event);
assert(notif_packet);
break;
case BT_NOTIFICATION_TYPE_STREAM_BEGIN:
* types above are allowed to be returned by a user
* component.
*/
- goto error;
+ BT_LOGF("Unexpected notification type at this point: "
+ "notif-addr=%p, notif-type=%s", notif,
+ bt_notification_type_string(notif->type));
+ abort();
}
if (notif_packet) {
- notif_stream = bt_ctf_packet_borrow_stream(notif_packet);
+ notif_stream = bt_packet_borrow_stream(notif_packet);
assert(notif_stream);
}
* The notification has no reference to a stream: it
* cannot cause the creation of automatic notifications.
*/
+ BT_LOGV_STR("Notification has no reference to any stream: skipping automatic notification generation.");
goto end;
}
if (!validate_notification(iterator, notif, notif_stream,
notif_packet)) {
+ BT_LOGW_STR("Invalid notification.");
goto error;
}
ret = handle_notif_packet_end(iterator, notif, notif_stream,
notif_packet);
break;
+ case BT_NOTIFICATION_TYPE_DISCARDED_EVENTS:
+ case BT_NOTIFICATION_TYPE_DISCARDED_PACKETS:
+ ret = handle_notif_discarded_elements(iterator, notif,
+ notif_stream);
+ break;
case BT_NOTIFICATION_TYPE_INACTIVITY:
add_action_push_notif(iterator, notif);
break;
}
if (ret) {
+ BT_LOGW_STR("Failed to handle notification for automatic notification generation.");
goto error;
}
apply_actions(iterator);
+ BT_LOGV("Enqueued user notification and automatic notifications: "
+ "iter-addr=%p, notif-addr=%p", iterator, notif);
goto end;
error:
}
static
-int handle_end(struct bt_notification_iterator *iterator)
+int handle_end(struct bt_notification_iterator_private_connection *iterator)
{
GHashTableIter stream_state_iter;
gpointer stream_gptr, stream_state_gptr;
int ret = 0;
+ BT_LOGV("Handling end of iteration: addr=%p", iterator);
+
/*
* Emit a "stream end" notification for each non-ended stream
* known by this iterator and mark them as ended.
ret = handle_packet_switch(iterator, NULL, NULL, stream_state);
if (ret) {
+ BT_LOGE_STR("Cannot handle packet switch.");
goto error;
}
ret = add_action_push_notif_stream_end(iterator, stream_gptr);
if (ret) {
+ BT_LOGE_STR("Cannot add \"push stream end notification\" action.");
goto error;
}
}
apply_actions(iterator);
+ BT_LOGV("Handled end of iteration: addr=%p", iterator);
goto end;
error:
static
enum bt_notification_iterator_status ensure_queue_has_notifications(
- struct bt_notification_iterator *iterator)
+ struct bt_notification_iterator_private_connection *iterator)
{
- struct bt_private_notification_iterator *priv_iterator =
- bt_private_notification_iterator_from_notification_iterator(iterator);
+ struct bt_private_connection_private_notification_iterator *priv_iterator =
+ bt_private_connection_private_notification_iterator_from_notification_iterator(iterator);
bt_component_class_notification_iterator_next_method next_method = NULL;
- struct bt_notification_iterator_next_return next_return = {
+ struct bt_notification_iterator_next_method_return next_return = {
.status = BT_NOTIFICATION_ITERATOR_STATUS_OK,
.notification = NULL,
};
int ret;
assert(iterator);
+ BT_LOGD("Ensuring that notification iterator's queue has at least one notification: "
+ "iter-addr=%p, queue-size=%u, iter-state=%s",
+ iterator, iterator->queue->length,
+ bt_private_connection_notification_iterator_state_string(iterator->state));
if (iterator->queue->length > 0) {
- /* We already have enough */
+ /*
+ * We already have enough. Even if this notification
+ * iterator is finalized, its user can still flush its
+ * current queue's content by calling its "next" method
+ * since this content is local and has no impact on what
+ * used to be the iterator's upstream component.
+ */
+ BT_LOGD_STR("Queue already has at least one notification.");
goto end;
}
switch (iterator->state) {
- case BT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED:
+ case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED:
+ case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED:
+ BT_LOGD_STR("Notification iterator's \"next\" called, but it is finalized.");
status = BT_NOTIFICATION_ITERATOR_STATUS_CANCELED;
goto end;
- case BT_NOTIFICATION_ITERATOR_STATE_ENDED:
+ case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ENDED:
+ BT_LOGD_STR("Notification iterator is ended.");
status = BT_NOTIFICATION_ITERATOR_STATUS_END;
goto end;
default:
break;
}
default:
- assert(BT_FALSE);
- break;
+ abort();
}
/*
assert(next_method);
while (iterator->queue->length == 0) {
+ BT_LOGD_STR("Calling user's \"next\" method.");
next_return = next_method(priv_iterator);
+ BT_LOGD("User method returned: status=%s",
+ bt_notification_iterator_status_string(next_return.status));
if (next_return.status < 0) {
+ BT_LOGW_STR("User method failed.");
status = next_return.status;
goto end;
}
+ if (iterator->state == BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED ||
+ iterator->state == BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED) {
+ /*
+ * The user's "next" method, somehow, cancelled
+ * its own notification iterator. This can
+ * happen, for example, when the user's method
+ * removes the port on which there's the
+ * connection from which the iterator was
+ * created. In this case, said connection is
+ * ended, and all its notification iterators are
+ * finalized.
+ *
+ * Only bt_put() the returned notification if
+ * the status is
+ * BT_NOTIFICATION_ITERATOR_STATUS_OK because
+ * otherwise this field could be garbage.
+ */
+ if (next_return.status ==
+ BT_NOTIFICATION_ITERATOR_STATUS_OK) {
+ bt_put(next_return.notification);
+ }
+
+ status = BT_NOTIFICATION_ITERATOR_STATUS_CANCELED;
+ goto end;
+ }
+
switch (next_return.status) {
case BT_NOTIFICATION_ITERATOR_STATUS_END:
ret = handle_end(iterator);
if (ret) {
+ BT_LOGW_STR("Cannot handle end of iteration.");
status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
goto end;
}
- if (iterator->state == BT_NOTIFICATION_ITERATOR_STATE_FINALIZED) {
- iterator->state =
- BT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED;
-
- if (iterator->queue->length == 0) {
- status = BT_NOTIFICATION_ITERATOR_STATUS_CANCELED;
- }
- } else {
- iterator->state =
- BT_NOTIFICATION_ITERATOR_STATE_ENDED;
+ assert(iterator->state ==
+ BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ACTIVE);
+ iterator->state = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ENDED;
- if (iterator->queue->length == 0) {
- status = BT_NOTIFICATION_ITERATOR_STATUS_END;
- }
+ if (iterator->queue->length == 0) {
+ status = BT_NOTIFICATION_ITERATOR_STATUS_END;
}
+
+ BT_LOGD("Set new status: status=%s",
+ bt_notification_iterator_status_string(status));
goto end;
case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN:
status = BT_NOTIFICATION_ITERATOR_STATUS_AGAIN;
goto end;
case BT_NOTIFICATION_ITERATOR_STATUS_OK:
if (!next_return.notification) {
+ BT_LOGW_STR("User method returned BT_NOTIFICATION_ITERATOR_STATUS_OK, but notification is NULL.");
status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
goto end;
}
+ /*
+ * Ignore some notifications which are always
+ * automatically generated by the notification
+ * iterator to make sure they have valid values.
+ */
+ switch (next_return.notification->type) {
+ case BT_NOTIFICATION_TYPE_DISCARDED_PACKETS:
+ case BT_NOTIFICATION_TYPE_DISCARDED_EVENTS:
+ BT_LOGV("Ignoring discarded elements notification returned by notification iterator's \"next\" method: "
+ "notif-type=%s",
+ bt_notification_type_string(next_return.notification->type));
+ BT_PUT(next_return.notification);
+ continue;
+ default:
+ break;
+ }
+
/*
* We know the notification is valid. Before we
* push it to the head of the queue, push the
next_return.notification);
BT_PUT(next_return.notification);
if (ret) {
+ BT_LOGW("Cannot enqueue notification and automatic notifications.");
status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
goto end;
}
break;
default:
/* Unknown non-error status */
- assert(BT_FALSE);
+ abort();
}
}
enum bt_notification_iterator_status status;
if (!iterator) {
+ BT_LOGW_STR("Invalid parameter: notification iterator is NULL.");
status = BT_NOTIFICATION_ITERATOR_STATUS_INVALID;
goto end;
}
- /*
- * Make sure that the iterator's queue contains at least one
- * notification.
- */
- status = ensure_queue_has_notifications(iterator);
- if (status != BT_NOTIFICATION_ITERATOR_STATUS_OK) {
- goto end;
+ BT_LOGD("Notification iterator's \"next\": iter-addr=%p", iterator);
+
+ switch (iterator->type) {
+ case BT_NOTIFICATION_ITERATOR_TYPE_PRIVATE_CONNECTION:
+ {
+ struct bt_notification_iterator_private_connection *priv_conn_iter =
+ (void *) iterator;
+ struct bt_notification *notif;
+
+ /*
+ * Make sure that the iterator's queue contains at least
+ * one notification.
+ */
+ status = ensure_queue_has_notifications(priv_conn_iter);
+ if (status != BT_NOTIFICATION_ITERATOR_STATUS_OK) {
+ goto end;
+ }
+
+ /*
+ * Move the notification at the tail of the queue to the
+ * iterator's current notification.
+ */
+ assert(priv_conn_iter->queue->length > 0);
+ notif = g_queue_pop_tail(priv_conn_iter->queue);
+ bt_notification_iterator_replace_current_notification(
+ iterator, notif);
+ bt_put(notif);
+ break;
}
+ case BT_NOTIFICATION_ITERATOR_TYPE_OUTPUT_PORT:
+ {
+ struct bt_notification_iterator_output_port *out_port_iter =
+ (void *) iterator;
- /*
- * Move the notification at the tail of the queue to the
- * iterator's current notification.
- */
- assert(iterator->queue->length > 0);
- bt_put(iterator->current_notification);
- iterator->current_notification = g_queue_pop_tail(iterator->queue);
- assert(iterator->current_notification);
+ /*
+ * Keep current notification in case there's an error:
+ * restore this notification so that the current
+ * notification is not changed from the user's point of
+ * view.
+ */
+ struct bt_notification *old_notif =
+ bt_get(bt_notification_iterator_borrow_current_notification(iterator));
+ enum bt_graph_status graph_status;
+
+ /*
+ * Put current notification since it's possibly
+ * about to be replaced by a new one by the
+ * colander sink.
+ */
+ bt_notification_iterator_replace_current_notification(
+ iterator, NULL);
+ graph_status = bt_graph_consume_sink_no_check(
+ out_port_iter->graph,
+ out_port_iter->colander);
+ switch (graph_status) {
+ case BT_GRAPH_STATUS_CANCELED:
+ status = BT_NOTIFICATION_ITERATOR_STATUS_CANCELED;
+ break;
+ case BT_GRAPH_STATUS_AGAIN:
+ status = BT_NOTIFICATION_ITERATOR_STATUS_AGAIN;
+ break;
+ case BT_GRAPH_STATUS_END:
+ status = BT_NOTIFICATION_ITERATOR_STATUS_END;
+ break;
+ case BT_GRAPH_STATUS_NOMEM:
+ status = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM;
+ break;
+ case BT_GRAPH_STATUS_OK:
+ status = BT_NOTIFICATION_ITERATOR_STATUS_OK;
+ assert(bt_notification_iterator_borrow_current_notification(iterator));
+ break;
+ default:
+ /* Other errors */
+ status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
+ }
+
+ if (status != BT_NOTIFICATION_ITERATOR_STATUS_OK) {
+ /* Error/exception: restore old notification */
+ bt_notification_iterator_replace_current_notification(
+ iterator, old_notif);
+ }
+
+ bt_put(old_notif);
+ break;
+ }
+ default:
+ BT_LOGF("Unknown notification iterator type: addr=%p, type=%d",
+ iterator, iterator->type);
+ abort();
+ }
end:
return status;
}
-struct bt_component *bt_notification_iterator_get_component(
+struct bt_component *bt_private_connection_notification_iterator_get_component(
struct bt_notification_iterator *iterator)
{
- return bt_get(iterator->upstream_component);
+ struct bt_component *comp = NULL;
+ struct bt_notification_iterator_private_connection *iter_priv_conn;
+
+ if (!iterator) {
+ BT_LOGW_STR("Invalid parameter: notification iterator is NULL.");
+ goto end;
+ }
+
+ if (iterator->type != BT_NOTIFICATION_ITERATOR_TYPE_PRIVATE_CONNECTION) {
+ BT_LOGW_STR("Invalid parameter: notification iterator was not created from a private connection.");
+ goto end;
+ }
+
+ iter_priv_conn = (void *) iterator;
+ comp = bt_get(iter_priv_conn->upstream_component);
+
+end:
+ return comp;
}
struct bt_private_component *
-bt_private_notification_iterator_get_private_component(
- struct bt_private_notification_iterator *private_iterator)
+bt_private_connection_private_notification_iterator_get_private_component(
+ struct bt_private_connection_private_notification_iterator *private_iterator)
{
return bt_private_component_from_component(
- bt_notification_iterator_get_component(
- bt_notification_iterator_from_private(private_iterator)));
+ bt_private_connection_notification_iterator_get_component(
+ (void *) bt_private_connection_notification_iterator_borrow_from_private(private_iterator)));
}
-enum bt_notification_iterator_status bt_notification_iterator_seek_time(
- struct bt_notification_iterator *iterator,
- enum bt_notification_iterator_seek_origin seek_origin,
- int64_t time)
+static
+void bt_output_port_notification_iterator_destroy(struct bt_object *obj)
{
- enum bt_notification_iterator_status ret =
- BT_NOTIFICATION_ITERATOR_STATUS_UNSUPPORTED;
- return ret;
+ struct bt_notification_iterator_output_port *iterator =
+ (void *) container_of(obj, struct bt_notification_iterator, base);
+
+ BT_LOGD("Destroying output port notification iterator object: addr=%p",
+ iterator);
+ BT_LOGD_STR("Putting graph.");
+ bt_put(iterator->graph);
+ BT_LOGD_STR("Putting output port.");
+ bt_put(iterator->output_port);
+ BT_LOGD_STR("Putting colander sink component.");
+ bt_put(iterator->colander);
+ destroy_base_notification_iterator(obj);
+}
+
+struct bt_notification_iterator *bt_output_port_notification_iterator_create(
+ struct bt_port *output_port,
+ const char *colander_component_name,
+ const enum bt_notification_type *notification_types)
+{
+ struct bt_notification_iterator *iterator_base = NULL;
+ struct bt_notification_iterator_output_port *iterator = NULL;
+ struct bt_component_class *colander_comp_cls = NULL;
+ struct bt_component *output_port_comp = NULL;
+ struct bt_component *colander_comp;
+ struct bt_graph *graph = NULL;
+ enum bt_graph_status graph_status;
+ const char *colander_comp_name;
+ struct bt_port *colander_in_port = NULL;
+ struct bt_component_class_sink_colander_data colander_data;
+
+ if (!output_port) {
+ BT_LOGW_STR("Invalid parameter: port is NULL.");
+ goto error;
+ }
+
+ if (bt_port_get_type(output_port) != BT_PORT_TYPE_OUTPUT) {
+ BT_LOGW_STR("Invalid parameter: port is not an output port.");
+ goto error;
+ }
+
+ output_port_comp = bt_port_get_component(output_port);
+ if (!output_port_comp) {
+ BT_LOGW("Cannot get output port's component: "
+ "port-addr=%p, port-name=\"%s\"",
+ output_port, bt_port_get_name(output_port));
+ goto error;
+ }
+
+ graph = bt_component_get_graph(output_port_comp);
+ assert(graph);
+
+ /* Create notification iterator */
+ BT_LOGD("Creating notification iterator on output port: "
+ "comp-addr=%p, comp-name\"%s\", port-addr=%p, port-name=\"%s\"",
+ output_port_comp, bt_component_get_name(output_port_comp),
+ output_port, bt_port_get_name(output_port));
+ iterator = g_new0(struct bt_notification_iterator_output_port, 1);
+ if (!iterator) {
+ BT_LOGE_STR("Failed to allocate one output port notification iterator.");
+ goto error;
+ }
+
+ init_notification_iterator((void *) iterator,
+ BT_NOTIFICATION_ITERATOR_TYPE_OUTPUT_PORT,
+ bt_output_port_notification_iterator_destroy);
+
+ /* Create colander component */
+ colander_comp_cls = bt_component_class_sink_colander_get();
+ if (!colander_comp_cls) {
+ BT_LOGW("Cannot get colander sink component class.");
+ goto error;
+ }
+
+ BT_MOVE(iterator->graph, graph);
+ iterator_base = (void *) iterator;
+ colander_comp_name =
+ colander_component_name ? colander_component_name : "colander";
+ colander_data.notification = &iterator_base->current_notification;
+ colander_data.notification_types = notification_types;
+ graph_status = bt_graph_add_component_with_init_method_data(
+ iterator->graph, colander_comp_cls, colander_comp_name,
+ NULL, &colander_data, &iterator->colander);
+ if (graph_status != BT_GRAPH_STATUS_OK) {
+ BT_LOGW("Cannot add colander sink component to graph: "
+ "graph-addr=%p, name=\"%s\", graph-status=%s",
+ iterator->graph, colander_comp_name,
+ bt_graph_status_string(graph_status));
+ goto error;
+ }
+
+ /*
+ * Connect provided output port to the colander component's
+ * input port.
+ */
+ colander_in_port = bt_component_sink_get_input_port_by_index(
+ iterator->colander, 0);
+ assert(colander_in_port);
+ graph_status = bt_graph_connect_ports(iterator->graph,
+ output_port, colander_in_port, NULL);
+ if (graph_status != BT_GRAPH_STATUS_OK) {
+ BT_LOGW("Cannot add colander sink component to graph: "
+ "graph-addr=%p, name=\"%s\", graph-status=%s",
+ iterator->graph, colander_comp_name,
+ bt_graph_status_string(graph_status));
+ goto error;
+ }
+
+ /*
+ * At this point everything went fine. Make the graph
+ * nonconsumable forever so that only this notification iterator
+ * can consume (thanks to bt_graph_consume_sink_no_check()).
+ * This avoids leaking the notification created by the colander
+ * sink and moved to the base notification iterator's current
+ * notification member.
+ */
+ bt_graph_set_can_consume(iterator->graph, BT_FALSE);
+ goto end;
+
+error:
+ if (iterator && iterator->graph && iterator->colander) {
+ int ret;
+
+ /* Remove created colander component from graph if any */
+ colander_comp = iterator->colander;
+ BT_PUT(iterator->colander);
+
+ /*
+ * At this point the colander component's reference
+ * count is 0 because iterator->colander was the only
+ * owner. We also know that it is not connected because
+ * this is the last operation before this function
+ * succeeds.
+ *
+ * Since we honor the preconditions here,
+ * bt_graph_remove_unconnected_component() always
+ * succeeds.
+ */
+ ret = bt_graph_remove_unconnected_component(iterator->graph,
+ colander_comp);
+ assert(ret == 0);
+ }
+
+ BT_PUT(iterator);
+
+end:
+ bt_put(colander_in_port);
+ bt_put(colander_comp_cls);
+ bt_put(output_port_comp);
+ bt_put(graph);
+ return (void *) iterator;
+}
+
+struct bt_notification_iterator *
+bt_private_connection_notification_iterator_from_private(
+ struct bt_private_connection_private_notification_iterator *private_notification_iterator)
+{
+ return bt_get(
+ bt_private_connection_notification_iterator_borrow_from_private(
+ private_notification_iterator));
}
projects / babeltrace.git / blobdiff