/*
- * iterator.c
- *
- * Babeltrace Notification Iterator
- *
+ * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
* Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- * Copyright 2017 Philippe Proulx <pproulx@efficios.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* SOFTWARE.
*/
-#define BT_LOG_TAG "NOTIF-ITER"
+#define BT_LOG_TAG "MSG-ITER"
#include <babeltrace/lib-logging-internal.h>
#include <babeltrace/compiler-internal.h>
-#include <babeltrace/object.h>
-#include <babeltrace/trace-ir/fields.h>
+#include <babeltrace/trace-ir/clock-class-internal.h>
+#include <babeltrace/trace-ir/clock-snapshot-internal.h>
+#include <babeltrace/trace-ir/field.h>
+#include <babeltrace/trace-ir/event-const.h>
#include <babeltrace/trace-ir/event-internal.h>
+#include <babeltrace/trace-ir/packet-const.h>
#include <babeltrace/trace-ir/packet-internal.h>
#include <babeltrace/trace-ir/stream-internal.h>
-#include <babeltrace/graph/connection.h>
+#include <babeltrace/graph/connection-const.h>
#include <babeltrace/graph/connection-internal.h>
-#include <babeltrace/graph/component.h>
+#include <babeltrace/graph/component-const.h>
#include <babeltrace/graph/component-internal.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-internal.h>
-#include <babeltrace/graph/notification-event.h>
-#include <babeltrace/graph/notification-event-internal.h>
-#include <babeltrace/graph/notification-packet.h>
-#include <babeltrace/graph/notification-packet-internal.h>
-#include <babeltrace/graph/notification-stream.h>
-#include <babeltrace/graph/notification-stream-internal.h>
-#include <babeltrace/graph/port.h>
-#include <babeltrace/graph/private-graph.h>
+#include <babeltrace/graph/component-sink-const.h>
+#include <babeltrace/graph/component-sink-internal.h>
+#include <babeltrace/graph/message-const.h>
+#include <babeltrace/graph/message-iterator-const.h>
+#include <babeltrace/graph/message-iterator-internal.h>
+#include <babeltrace/graph/self-component-port-input-message-iterator.h>
+#include <babeltrace/graph/port-output-message-iterator.h>
+#include <babeltrace/graph/message-internal.h>
+#include <babeltrace/graph/message-event-const.h>
+#include <babeltrace/graph/message-event-internal.h>
+#include <babeltrace/graph/message-packet-beginning-const.h>
+#include <babeltrace/graph/message-packet-end-const.h>
+#include <babeltrace/graph/message-packet-internal.h>
+#include <babeltrace/graph/message-stream-beginning-const.h>
+#include <babeltrace/graph/message-stream-end-const.h>
+#include <babeltrace/graph/message-stream-internal.h>
+#include <babeltrace/graph/message-message-iterator-inactivity-internal.h>
+#include <babeltrace/graph/message-discarded-items-internal.h>
+#include <babeltrace/graph/message-stream-activity-internal.h>
+#include <babeltrace/graph/port-const.h>
+#include <babeltrace/graph/graph.h>
+#include <babeltrace/graph/graph-const.h>
#include <babeltrace/graph/graph-internal.h>
#include <babeltrace/types.h>
#include <babeltrace/assert-internal.h>
* TODO: Use graph's state (number of active iterators, etc.) and
* possibly system specifications to make a better guess than this.
*/
-#define NOTIF_BATCH_SIZE 15
+#define MSG_BATCH_SIZE 15
-struct stream_state {
- struct bt_stream *stream; /* owned by this */
- struct bt_packet *cur_packet; /* owned by this */
- uint64_t expected_notif_seq_num;
- bt_bool is_ended;
-};
+#define BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(_iter) \
+ BT_ASSERT_PRE((_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE || \
+ (_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED || \
+ (_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_AGAIN || \
+ (_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_ERROR, \
+ "Message iterator is in the wrong state: %!+i", _iter)
-BT_ASSERT_PRE_FUNC
-static
-void destroy_stream_state(struct stream_state *stream_state)
+static inline
+void _set_self_comp_port_input_msg_iterator_state(
+ struct bt_self_component_port_input_message_iterator *iterator,
+ enum bt_self_component_port_input_message_iterator_state state)
{
- if (!stream_state) {
- return;
- }
-
- BT_LOGV("Destroying stream state: stream-state-addr=%p", stream_state);
- BT_LOGV_STR("Putting stream state's current packet.");
- bt_object_put_ref(stream_state->cur_packet);
- BT_LOGV_STR("Putting stream state's stream.");
- bt_object_put_ref(stream_state->stream);
- g_free(stream_state);
+ BT_ASSERT(iterator);
+ BT_LIB_LOGD("Updating message iterator's state: new-state=%s",
+ bt_self_component_port_input_message_iterator_state_string(state));
+ iterator->state = state;
}
-BT_ASSERT_PRE_FUNC
-static
-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;
- }
-
- /*
- * We keep a reference to the stream until we know it's ended.
- */
- stream_state->stream = bt_object_get_ref(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;
-}
+#ifdef BT_DEV_MODE
+# define set_self_comp_port_input_msg_iterator_state _set_self_comp_port_input_msg_iterator_state
+#else
+# define set_self_comp_port_input_msg_iterator_state(_a, _b) ((void) _a); ((void) _b);
+#endif
static
-void destroy_base_notification_iterator(struct bt_object *obj)
+void destroy_base_message_iterator(struct bt_object *obj)
{
- struct bt_notification_iterator *iterator = (void *) obj;
+ struct bt_message_iterator *iterator = (void *) obj;
BT_ASSERT(iterator);
- if (iterator->notifs) {
- g_ptr_array_free(iterator->notifs, TRUE);
+ if (iterator->msgs) {
+ g_ptr_array_free(iterator->msgs, TRUE);
+ iterator->msgs = NULL;
}
g_free(iterator);
}
static
-void bt_private_connection_notification_iterator_destroy(struct bt_object *obj)
+void bt_self_component_port_input_message_iterator_destroy(struct bt_object *obj)
{
- struct bt_notification_iterator_private_connection *iterator;
+ struct bt_self_component_port_input_message_iterator *iterator;
BT_ASSERT(obj);
/*
- * The notification iterator's reference count is 0 if we're
+ * The message iterator's reference count is 0 if we're
* here. Increment it to avoid a double-destroy (possibly
* infinitely recursive). This could happen for example if the
- * notification iterator's finalization function does bt_object_get_ref()
- * (or anything that causes bt_object_get_ref() to be called) on itself
- * (ref. count goes from 0 to 1), and then bt_object_put_ref(): the
- * reference count would go from 1 to 0 again and this function
- * would be called again.
+ * message iterator's finalization function does
+ * bt_object_get_ref() (or anything that causes
+ * bt_object_get_ref() to be called) on itself (ref. count goes
+ * from 0 to 1), and then bt_object_put_ref(): the reference
+ * count would go from 1 to 0 again and this function would be
+ * called again.
*/
obj->ref_count++;
iterator = (void *) obj;
- BT_LOGD("Destroying private connection notification iterator object: addr=%p",
- iterator);
- bt_private_connection_notification_iterator_finalize(iterator);
-
- if (iterator->stream_states) {
- /*
- * Remove our destroy listener from each stream which
- * has a state in this iterator. Otherwise the destroy
- * listener would be called with an invalid/other
- * notification iterator object.
- */
- g_hash_table_destroy(iterator->stream_states);
- }
+ BT_LIB_LOGD("Destroying self component input port message iterator object: "
+ "%!+i", iterator);
+ bt_self_component_port_input_message_iterator_try_finalize(iterator);
if (iterator->connection) {
/*
* later.
*/
bt_connection_remove_iterator(iterator->connection, iterator);
+ iterator->connection = NULL;
+ }
+
+ if (iterator->auto_seek_msgs) {
+ while (!g_queue_is_empty(iterator->auto_seek_msgs)) {
+ bt_object_put_no_null_check(
+ g_queue_pop_tail(iterator->auto_seek_msgs));
+ }
+
+ g_queue_free(iterator->auto_seek_msgs);
+ iterator->auto_seek_msgs = NULL;
}
- destroy_base_notification_iterator(obj);
+ destroy_base_message_iterator(obj);
}
BT_HIDDEN
-void bt_private_connection_notification_iterator_finalize(
- struct bt_notification_iterator_private_connection *iterator)
+void bt_self_component_port_input_message_iterator_try_finalize(
+ struct bt_self_component_port_input_message_iterator *iterator)
{
+ typedef void (*method_t)(void *);
+
struct bt_component_class *comp_class = NULL;
- bt_component_class_notification_iterator_finalize_method
- finalize_method = NULL;
+ method_t method = NULL;
BT_ASSERT(iterator);
switch (iterator->state) {
- case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_NON_INITIALIZED:
+ case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_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:
+ BT_LIB_LOGD("Not finalizing non-initialized message iterator: "
+ "%!+i", iterator);
+ goto end;
+ case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZED:
/* Already finalized */
- BT_LOGD("Not finalizing notification iterator: already finalized: "
- "addr=%p", iterator);
- return;
+ BT_LIB_LOGD("Not finalizing message iterator: already finalized: "
+ "%!+i", iterator);
+ goto end;
+ case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZING:
+ /* Already finalized */
+ BT_LIB_LOGF("Message iterator is already being finalized: "
+ "%!+i", iterator);
+ abort();
default:
break;
}
- 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 {
- 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;
- }
-
+ BT_LIB_LOGD("Finalizing message iterator: %!+i", iterator);
+ set_self_comp_port_input_msg_iterator_state(iterator,
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZING);
BT_ASSERT(iterator->upstream_component);
comp_class = iterator->upstream_component->class;
switch (comp_class->type) {
case BT_COMPONENT_CLASS_TYPE_SOURCE:
{
- struct bt_component_class_source *source_class;
+ struct bt_component_class_source *src_comp_cls =
+ (void *) comp_class;
- source_class = container_of(comp_class, struct bt_component_class_source, parent);
- finalize_method = source_class->methods.iterator.finalize;
+ method = (method_t) src_comp_cls->methods.msg_iter_finalize;
break;
}
case BT_COMPONENT_CLASS_TYPE_FILTER:
{
- struct bt_component_class_filter *filter_class;
+ struct bt_component_class_filter *flt_comp_cls =
+ (void *) comp_class;
- filter_class = container_of(comp_class, struct bt_component_class_filter, parent);
- finalize_method = filter_class->methods.iterator.finalize;
+ method = (method_t) flt_comp_cls->methods.msg_iter_finalize;
break;
}
default:
abort();
}
- if (finalize_method) {
- BT_LOGD("Calling user's finalization method: addr=%p",
+ if (method) {
+ BT_LIB_LOGD("Calling user's finalization method: %!+i",
iterator);
- finalize_method(
- bt_private_connection_private_notification_iterator_from_notification_iterator(iterator));
+ method(iterator);
}
iterator->upstream_component = NULL;
iterator->upstream_port = NULL;
- BT_LOGD("Finalized notification iterator: addr=%p", iterator);
+ set_self_comp_port_input_msg_iterator_state(iterator,
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZED);
+ BT_LIB_LOGD("Finalized message iterator: %!+i", iterator);
+
+end:
+ return;
}
BT_HIDDEN
-void bt_private_connection_notification_iterator_set_connection(
- struct bt_notification_iterator_private_connection *iterator,
+void bt_self_component_port_input_message_iterator_set_connection(
+ struct bt_self_component_port_input_message_iterator *iterator,
struct bt_connection *connection)
{
BT_ASSERT(iterator);
iterator->connection = connection;
- BT_LOGV("Set notification iterator's connection: "
- "iter-addr=%p, conn-addr=%p", iterator, connection);
+ BT_LIB_LOGV("Set message iterator's connection: "
+ "%![iter-]+i, %![conn-]+x", iterator, connection);
}
static
-int init_notification_iterator(struct bt_notification_iterator *iterator,
- enum bt_notification_iterator_type type,
+int init_message_iterator(struct bt_message_iterator *iterator,
+ enum bt_message_iterator_type type,
bt_object_release_func destroy)
{
int ret = 0;
bt_object_init_shared(&iterator->base, destroy);
iterator->type = type;
- iterator->notifs = g_ptr_array_new();
- if (!iterator->notifs) {
+ iterator->msgs = g_ptr_array_new();
+ if (!iterator->msgs) {
BT_LOGE_STR("Failed to allocate a GPtrArray.");
ret = -1;
goto end;
}
- g_ptr_array_set_size(iterator->notifs, NOTIF_BATCH_SIZE);
+ g_ptr_array_set_size(iterator->msgs, MSG_BATCH_SIZE);
end:
return ret;
}
-BT_HIDDEN
-enum bt_connection_status bt_private_connection_notification_iterator_create(
+static
+bt_bool can_seek_ns_from_origin_true(
+ struct bt_self_component_port_input_message_iterator *iterator,
+ int64_t ns_from_origin)
+{
+ return BT_TRUE;
+}
+
+static
+bt_bool can_seek_beginning_true(
+ struct bt_self_component_port_input_message_iterator *iterator)
+{
+ return BT_TRUE;
+}
+
+static
+struct bt_self_component_port_input_message_iterator *
+bt_self_component_port_input_message_iterator_create_initial(
struct bt_component *upstream_comp,
- struct bt_port *upstream_port,
- struct bt_connection *connection,
- struct bt_notification_iterator_private_connection **user_iterator)
+ struct bt_port *upstream_port)
{
- enum bt_connection_status status = BT_CONNECTION_STATUS_OK;
- enum bt_component_class_type type;
- struct bt_notification_iterator_private_connection *iterator = NULL;
int ret;
+ struct bt_self_component_port_input_message_iterator *iterator = NULL;
BT_ASSERT(upstream_comp);
BT_ASSERT(upstream_port);
BT_ASSERT(bt_port_is_connected(upstream_port));
- BT_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);
- BT_ASSERT(type == BT_COMPONENT_CLASS_TYPE_SOURCE ||
- type == BT_COMPONENT_CLASS_TYPE_FILTER);
- iterator = g_new0(struct bt_notification_iterator_private_connection, 1);
+ BT_LIB_LOGD("Creating initial message iterator on self component input port: "
+ "%![up-comp-]+c, %![up-port-]+p", upstream_comp, upstream_port);
+ BT_ASSERT(bt_component_get_class_type(upstream_comp) ==
+ BT_COMPONENT_CLASS_TYPE_SOURCE ||
+ bt_component_get_class_type(upstream_comp) ==
+ BT_COMPONENT_CLASS_TYPE_FILTER);
+ iterator = g_new0(
+ struct bt_self_component_port_input_message_iterator, 1);
if (!iterator) {
- BT_LOGE_STR("Failed to allocate one private connection notification iterator.");
- status = BT_CONNECTION_STATUS_NOMEM;
+ BT_LOGE_STR("Failed to allocate one self component input port "
+ "message iterator.");
goto end;
}
- ret = init_notification_iterator((void *) iterator,
- BT_NOTIFICATION_ITERATOR_TYPE_PRIVATE_CONNECTION,
- bt_private_connection_notification_iterator_destroy);
+ ret = init_message_iterator((void *) iterator,
+ BT_MESSAGE_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT,
+ bt_self_component_port_input_message_iterator_destroy);
if (ret) {
- /* init_notification_iterator() logs errors */
- status = BT_CONNECTION_STATUS_NOMEM;
+ /* init_message_iterator() logs errors */
+ BT_OBJECT_PUT_REF_AND_RESET(iterator);
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) {
- BT_LOGE_STR("Failed to allocate a GHashTable.");
- status = BT_CONNECTION_STATUS_NOMEM;
+ iterator->auto_seek_msgs = g_queue_new();
+ if (!iterator->auto_seek_msgs) {
+ BT_LOGE_STR("Failed to allocate a GQueue.");
+ ret = -1;
goto end;
}
iterator->upstream_component = upstream_comp;
iterator->upstream_port = upstream_port;
- iterator->connection = connection;
+ iterator->connection = iterator->upstream_port->connection;
iterator->graph = bt_component_borrow_graph(upstream_comp);
- 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:
- bt_object_put_ref(iterator);
- return status;
-}
-
-void *bt_private_connection_private_notification_iterator_get_user_data(
- struct bt_private_connection_private_notification_iterator *private_iterator)
-{
- struct bt_notification_iterator_private_connection *iterator = (void *)
- bt_private_connection_notification_iterator_borrow_from_private(private_iterator);
-
- BT_ASSERT_PRE_NON_NULL(private_iterator, "Notification iterator");
- return iterator->user_data;
-}
+ set_self_comp_port_input_msg_iterator_state(iterator,
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_NON_INITIALIZED);
-enum bt_notification_iterator_status
-bt_private_connection_private_notification_iterator_set_user_data(
- struct bt_private_connection_private_notification_iterator *private_iterator,
- void *data)
-{
- struct bt_notification_iterator_private_connection *iterator = (void *)
- bt_private_connection_notification_iterator_borrow_from_private(private_iterator);
-
- BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator");
- iterator->user_data = data;
- BT_LOGV("Set notification iterator's user data: "
- "iter-addr=%p, user-data-addr=%p", iterator, data);
- return BT_NOTIFICATION_ITERATOR_STATUS_OK;
-}
-
-struct bt_graph *bt_private_connection_private_notification_iterator_borrow_graph(
- struct bt_private_connection_private_notification_iterator *private_iterator)
-{
- struct bt_notification_iterator_private_connection *iterator = (void *)
- bt_private_connection_notification_iterator_borrow_from_private(
- private_iterator);
-
- BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator");
- return iterator->graph;
-}
-
-BT_ASSERT_PRE_FUNC
-static inline
-void bt_notification_borrow_packet_stream(struct bt_notification *notif,
- struct bt_stream **stream, struct bt_packet **packet)
-{
- BT_ASSERT(notif);
-
- switch (notif->type) {
- case BT_NOTIFICATION_TYPE_EVENT:
- *packet = bt_event_borrow_packet(
- bt_notification_event_borrow_event(notif));
- *stream = bt_packet_borrow_stream(*packet);
- break;
- case BT_NOTIFICATION_TYPE_STREAM_BEGIN:
- *stream = bt_notification_stream_begin_borrow_stream(notif);
- break;
- case BT_NOTIFICATION_TYPE_STREAM_END:
- *stream = bt_notification_stream_end_borrow_stream(notif);
- break;
- case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
- *packet = bt_notification_packet_begin_borrow_packet(notif);
- *stream = bt_packet_borrow_stream(*packet);
+ switch (iterator->upstream_component->class->type) {
+ case BT_COMPONENT_CLASS_TYPE_SOURCE:
+ {
+ struct bt_component_class_source *src_comp_cls =
+ (void *) iterator->upstream_component->class;
+
+ iterator->methods.next =
+ (bt_self_component_port_input_message_iterator_next_method)
+ src_comp_cls->methods.msg_iter_next;
+ iterator->methods.seek_ns_from_origin =
+ (bt_self_component_port_input_message_iterator_seek_ns_from_origin_method)
+ src_comp_cls->methods.msg_iter_seek_ns_from_origin;
+ iterator->methods.seek_beginning =
+ (bt_self_component_port_input_message_iterator_seek_beginning_method)
+ src_comp_cls->methods.msg_iter_seek_beginning;
+ iterator->methods.can_seek_ns_from_origin =
+ (bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method)
+ src_comp_cls->methods.msg_iter_can_seek_ns_from_origin;
+ iterator->methods.can_seek_beginning =
+ (bt_self_component_port_input_message_iterator_can_seek_beginning_method)
+ src_comp_cls->methods.msg_iter_can_seek_beginning;
break;
- case BT_NOTIFICATION_TYPE_PACKET_END:
- *packet = bt_notification_packet_end_borrow_packet(notif);
- *stream = bt_packet_borrow_stream(*packet);
+ }
+ case BT_COMPONENT_CLASS_TYPE_FILTER:
+ {
+ struct bt_component_class_filter *flt_comp_cls =
+ (void *) iterator->upstream_component->class;
+
+ iterator->methods.next =
+ (bt_self_component_port_input_message_iterator_next_method)
+ flt_comp_cls->methods.msg_iter_next;
+ iterator->methods.seek_ns_from_origin =
+ (bt_self_component_port_input_message_iterator_seek_ns_from_origin_method)
+ flt_comp_cls->methods.msg_iter_seek_ns_from_origin;
+ iterator->methods.seek_beginning =
+ (bt_self_component_port_input_message_iterator_seek_beginning_method)
+ flt_comp_cls->methods.msg_iter_seek_beginning;
+ iterator->methods.can_seek_ns_from_origin =
+ (bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method)
+ flt_comp_cls->methods.msg_iter_can_seek_ns_from_origin;
+ iterator->methods.can_seek_beginning =
+ (bt_self_component_port_input_message_iterator_can_seek_beginning_method)
+ flt_comp_cls->methods.msg_iter_can_seek_beginning;
break;
+ }
default:
- break;
+ abort();
}
-}
-
-BT_ASSERT_PRE_FUNC
-static inline
-bool validate_notification(
- struct bt_notification_iterator_private_connection *iterator,
- struct bt_notification *notif)
-{
- bool is_valid = true;
- struct stream_state *stream_state;
- struct bt_stream *stream = NULL;
- struct bt_packet *packet = NULL;
- BT_ASSERT(notif);
- bt_notification_borrow_packet_stream(notif, &stream, &packet);
-
- if (!stream) {
- /* we don't care about notifications not attached to streams */
- goto end;
+ if (iterator->methods.seek_ns_from_origin &&
+ !iterator->methods.can_seek_ns_from_origin) {
+ iterator->methods.can_seek_ns_from_origin =
+ (bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method)
+ can_seek_ns_from_origin_true;
}
- stream_state = g_hash_table_lookup(iterator->stream_states, stream);
- if (!stream_state) {
- /*
- * No stream state for this stream: this notification
- * MUST be a BT_NOTIFICATION_TYPE_STREAM_BEGIN notification
- * and its sequence number must be 0.
- */
- if (notif->type != BT_NOTIFICATION_TYPE_STREAM_BEGIN) {
- BT_ASSERT_PRE_MSG("Unexpected notification: missing a "
- "BT_NOTIFICATION_TYPE_STREAM_BEGIN "
- "notification prior to this notification: "
- "%![stream-]+s", stream);
- is_valid = false;
- goto end;
- }
-
- if (notif->seq_num == -1ULL) {
- notif->seq_num = 0;
- }
+ if (iterator->methods.seek_beginning &&
+ !iterator->methods.can_seek_beginning) {
+ iterator->methods.can_seek_beginning =
+ (bt_self_component_port_input_message_iterator_seek_beginning_method)
+ can_seek_beginning_true;
+ }
- if (notif->seq_num != 0) {
- BT_ASSERT_PRE_MSG("Unexpected notification sequence "
- "number for this notification iterator: "
- "this is the first notification for this "
- "stream, expecting sequence number 0: "
- "seq-num=%" PRIu64 ", %![stream-]+s",
- notif->seq_num, stream);
- is_valid = false;
- goto end;
- }
+ BT_LIB_LOGD("Created initial message iterator on self component input port: "
+ "%![up-port-]+p, %![up-comp-]+c, %![iter-]+i",
+ upstream_port, upstream_comp, iterator);
- stream_state = create_stream_state(stream);
- if (!stream_state) {
- abort();
- }
+end:
+ return iterator;
+}
- g_hash_table_insert(iterator->stream_states, stream,
- stream_state);
- stream_state->expected_notif_seq_num++;
+struct bt_self_component_port_input_message_iterator *
+bt_self_component_port_input_message_iterator_create(
+ struct bt_self_component_port_input *self_port)
+{
+ typedef enum bt_self_message_iterator_status (*init_method_t)(
+ void *, void *, void *);
+
+ init_method_t init_method = NULL;
+ struct bt_self_component_port_input_message_iterator *iterator =
+ NULL;
+ struct bt_port *port = (void *) self_port;
+ struct bt_port *upstream_port;
+ struct bt_component *comp;
+ struct bt_component *upstream_comp;
+ struct bt_component_class *upstream_comp_cls;
+
+ BT_ASSERT_PRE_NON_NULL(port, "Port");
+ comp = bt_port_borrow_component_inline(port);
+ BT_ASSERT_PRE(bt_port_is_connected(port),
+ "Port is not connected: %![port-]+p", port);
+ BT_ASSERT_PRE(comp, "Port is not part of a component: %![port-]+p",
+ port);
+ BT_ASSERT_PRE(!bt_component_graph_is_canceled(comp),
+ "Port's component's graph is canceled: "
+ "%![port-]+p, %![comp-]+c", port, comp);
+ BT_ASSERT(port->connection);
+ upstream_port = port->connection->upstream_port;
+ BT_ASSERT(upstream_port);
+ upstream_comp = bt_port_borrow_component_inline(upstream_port);
+ BT_ASSERT(upstream_comp);
+ BT_ASSERT_PRE(
+ bt_component_borrow_graph(upstream_comp)->config_state !=
+ BT_GRAPH_CONFIGURATION_STATE_CONFIGURING,
+ "Graph is not configured: %!+g",
+ bt_component_borrow_graph(upstream_comp));
+ upstream_comp_cls = upstream_comp->class;
+ BT_ASSERT(upstream_comp->class->type ==
+ BT_COMPONENT_CLASS_TYPE_SOURCE ||
+ upstream_comp->class->type ==
+ BT_COMPONENT_CLASS_TYPE_FILTER);
+ iterator = bt_self_component_port_input_message_iterator_create_initial(
+ upstream_comp, upstream_port);
+ if (!iterator) {
+ BT_LOGW_STR("Cannot create self component input port "
+ "message iterator.");
goto end;
}
- if (stream_state->is_ended) {
- /*
- * There's a new notification which has a reference to a
- * stream which, from this iterator's point of view, is
- * ended ("end of stream" notification was returned).
- * This is bad: the API guarantees that it can never
- * happen.
- */
- BT_ASSERT_PRE_MSG("Stream is already ended: %![stream-]+s",
- stream);
- is_valid = false;
- goto end;
- }
+ switch (upstream_comp_cls->type) {
+ case BT_COMPONENT_CLASS_TYPE_SOURCE:
+ {
+ struct bt_component_class_source *src_comp_cls =
+ (void *) upstream_comp_cls;
- if (notif->seq_num == -1ULL) {
- notif->seq_num = stream_state->expected_notif_seq_num;
+ init_method =
+ (init_method_t) src_comp_cls->methods.msg_iter_init;
+ break;
}
+ case BT_COMPONENT_CLASS_TYPE_FILTER:
+ {
+ struct bt_component_class_filter *flt_comp_cls =
+ (void *) upstream_comp_cls;
- if (notif->seq_num != -1ULL &&
- notif->seq_num != stream_state->expected_notif_seq_num) {
- BT_ASSERT_PRE_MSG("Unexpected notification sequence number: "
- "seq-num=%" PRIu64 ", "
- "expected-seq-num=%" PRIu64 ", %![stream-]+s",
- notif->seq_num, stream_state->expected_notif_seq_num,
- stream);
- is_valid = false;
- goto end;
+ init_method =
+ (init_method_t) flt_comp_cls->methods.msg_iter_init;
+ break;
+ }
+ default:
+ /* Unreachable */
+ abort();
}
- switch (notif->type) {
- case BT_NOTIFICATION_TYPE_STREAM_BEGIN:
- BT_ASSERT_PRE_MSG("Unexpected BT_NOTIFICATION_TYPE_STREAM_BEGIN "
- "notification at this point: notif-seq-num=%" PRIu64 ", "
- "%![stream-]+s", notif->seq_num, stream);
- is_valid = false;
- goto end;
- case BT_NOTIFICATION_TYPE_STREAM_END:
- if (stream_state->cur_packet) {
- BT_ASSERT_PRE_MSG("Unexpected BT_NOTIFICATION_TYPE_STREAM_END "
- "notification: missing a "
- "BT_NOTIFICATION_TYPE_PACKET_END notification "
- "prior to this notification: "
- "notif-seq-num=%" PRIu64 ", "
- "%![stream-]+s", notif->seq_num, stream);
- is_valid = false;
- goto end;
- }
- stream_state->expected_notif_seq_num++;
- stream_state->is_ended = true;
- goto end;
- case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
- if (stream_state->cur_packet) {
- BT_ASSERT_PRE_MSG("Unexpected BT_NOTIFICATION_TYPE_PACKET_BEGIN "
- "notification at this point: missing a "
- "BT_NOTIFICATION_TYPE_PACKET_END notification "
- "prior to this notification: "
- "notif-seq-num=%" PRIu64 ", %![stream-]+s, "
- "%![packet-]+a", notif->seq_num, stream,
- packet);
- is_valid = false;
- goto end;
- }
- stream_state->expected_notif_seq_num++;
- stream_state->cur_packet = bt_object_get_ref(packet);
- goto end;
- case BT_NOTIFICATION_TYPE_PACKET_END:
- if (!stream_state->cur_packet) {
- BT_ASSERT_PRE_MSG("Unexpected BT_NOTIFICATION_TYPE_PACKET_END "
- "notification at this point: missing a "
- "BT_NOTIFICATION_TYPE_PACKET_BEGIN notification "
- "prior to this notification: "
- "notif-seq-num=%" PRIu64 ", %![stream-]+s, "
- "%![packet-]+a", notif->seq_num, stream,
- packet);
- is_valid = false;
- goto end;
- }
- stream_state->expected_notif_seq_num++;
- BT_OBJECT_PUT_REF_AND_RESET(stream_state->cur_packet);
- goto end;
- case BT_NOTIFICATION_TYPE_EVENT:
- if (packet != stream_state->cur_packet) {
- BT_ASSERT_PRE_MSG("Unexpected packet for "
- "BT_NOTIFICATION_TYPE_EVENT notification: "
- "notif-seq-num=%" PRIu64 ", %![stream-]+s, "
- "%![notif-packet-]+a, %![expected-packet-]+a",
- notif->seq_num, stream,
- stream_state->cur_packet, packet);
- is_valid = false;
+ if (init_method) {
+ int iter_status;
+
+ BT_LIB_LOGD("Calling user's initialization method: %!+i", iterator);
+ iter_status = init_method(iterator, upstream_comp,
+ upstream_port);
+ BT_LOGD("User method returned: status=%s",
+ bt_message_iterator_status_string(iter_status));
+ if (iter_status != BT_MESSAGE_ITERATOR_STATUS_OK) {
+ BT_LOGW_STR("Initialization method failed.");
+ BT_OBJECT_PUT_REF_AND_RESET(iterator);
goto end;
}
- stream_state->expected_notif_seq_num++;
- goto end;
- default:
- break;
}
+ set_self_comp_port_input_msg_iterator_state(iterator,
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE);
+ g_ptr_array_add(port->connection->iterators, iterator);
+ BT_LIB_LOGD("Created message iterator on self component input port: "
+ "%![up-port-]+p, %![up-comp-]+c, %![iter-]+i",
+ upstream_port, upstream_comp, iterator);
+
end:
- return is_valid;
+ return iterator;
}
-BT_ASSERT_PRE_FUNC
-static inline
-bool validate_notifications(
- struct bt_notification_iterator_private_connection *iterator,
- uint64_t count)
+void *bt_self_message_iterator_get_data(
+ const struct bt_self_message_iterator *self_iterator)
{
- bool ret = true;
- bt_notification_array notifs = (void *) iterator->base.notifs->pdata;
- uint64_t i;
+ struct bt_self_component_port_input_message_iterator *iterator =
+ (void *) self_iterator;
- for (i = 0; i < count; i++) {
- ret = validate_notification(iterator, notifs[i]);
- if (!ret) {
- break;
- }
- }
-
- return ret;
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ return iterator->user_data;
}
-BT_ASSERT_PRE_FUNC
-static inline bool priv_conn_notif_iter_can_end(
- struct bt_notification_iterator_private_connection *iterator)
+void bt_self_message_iterator_set_data(
+ struct bt_self_message_iterator *self_iterator, void *data)
{
- GHashTableIter iter;
- gpointer stream_key, state_value;
- bool ret = true;
+ struct bt_self_component_port_input_message_iterator *iterator =
+ (void *) self_iterator;
- /*
- * Verify that this iterator received a
- * BT_NOTIFICATION_TYPE_STREAM_END notification for each stream
- * which has a state.
- */
-
- g_hash_table_iter_init(&iter, iterator->stream_states);
-
- while (g_hash_table_iter_next(&iter, &stream_key, &state_value)) {
- struct stream_state *stream_state = (void *) state_value;
-
- BT_ASSERT(stream_state);
- BT_ASSERT(stream_key);
-
- if (!stream_state->is_ended) {
- BT_ASSERT_PRE_MSG("Ending notification iterator, "
- "but stream is not ended: "
- "%![stream-]s", stream_key);
- ret = false;
- goto end;
- }
- }
-
-end:
- return ret;
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ iterator->user_data = data;
+ BT_LIB_LOGV("Set message iterator's user data: "
+ "%!+i, user-data-addr=%p", iterator, data);
}
-enum bt_notification_iterator_status
-bt_private_connection_notification_iterator_next(
- struct bt_notification_iterator *user_iterator,
- struct bt_notification ***user_notifs, uint64_t *user_count)
-{
- struct bt_notification_iterator_private_connection *iterator =
- (void *) user_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;
- enum bt_notification_iterator_status status =
- BT_NOTIFICATION_ITERATOR_STATUS_OK;
-
- BT_ASSERT_PRE_NON_NULL(user_iterator, "Notification iterator");
- BT_ASSERT_PRE_NON_NULL(user_notifs, "Notification array");
- BT_ASSERT_PRE_NON_NULL(user_count, "Notification count");
- BT_ASSERT_PRE(user_iterator->type ==
- BT_NOTIFICATION_ITERATOR_TYPE_PRIVATE_CONNECTION,
- "Notification iterator was not created from a private connection: "
- "%!+i", iterator);
- BT_LIB_LOGD("Getting next private connection notification iterator's notification: %!+i",
- iterator);
+enum bt_message_iterator_status
+bt_self_component_port_input_message_iterator_next(
+ struct bt_self_component_port_input_message_iterator *iterator,
+ bt_message_array_const *msgs, uint64_t *user_count)
+{
+ int status = BT_MESSAGE_ITERATOR_STATUS_OK;
+
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ BT_ASSERT_PRE_NON_NULL(msgs, "Message array (output)");
+ BT_ASSERT_PRE_NON_NULL(user_count, "Message count (output)");
BT_ASSERT_PRE(iterator->state ==
- BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ACTIVE,
- "Notification iterator's \"next\" called, but "
- "iterator is in the wrong state: %!+i", iterator);
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE,
+ "Message iterator's \"next\" called, but "
+ "message iterator is in the wrong state: %!+i", iterator);
BT_ASSERT(iterator->upstream_component);
BT_ASSERT(iterator->upstream_component->class);
-
- /* Pick the appropriate "next" method */
- switch (iterator->upstream_component->class->type) {
- case BT_COMPONENT_CLASS_TYPE_SOURCE:
- {
- struct bt_component_class_source *source_class =
- container_of(iterator->upstream_component->class,
- struct bt_component_class_source, parent);
-
- BT_ASSERT(source_class->methods.iterator.next);
- next_method = source_class->methods.iterator.next;
- break;
- }
- case BT_COMPONENT_CLASS_TYPE_FILTER:
- {
- struct bt_component_class_filter *filter_class =
- container_of(iterator->upstream_component->class,
- struct bt_component_class_filter, parent);
-
- BT_ASSERT(filter_class->methods.iterator.next);
- next_method = filter_class->methods.iterator.next;
- break;
- }
- default:
- abort();
- }
+ BT_ASSERT_PRE(
+ bt_component_borrow_graph(iterator->upstream_component)->config_state !=
+ BT_GRAPH_CONFIGURATION_STATE_CONFIGURING,
+ "Graph is not configured: %!+g",
+ bt_component_borrow_graph(iterator->upstream_component));
+ BT_LIB_LOGD("Getting next self component input port "
+ "message iterator's messages: %!+i", iterator);
/*
- * Call the user's "next" method to get the next notification
+ * Call the user's "next" method to get the next messages
* and status.
*/
- BT_ASSERT(next_method);
+ BT_ASSERT(iterator->methods.next);
BT_LOGD_STR("Calling user's \"next\" method.");
- status = next_method(priv_iterator,
- (void *) user_iterator->notifs->pdata,
- NOTIF_BATCH_SIZE, user_count);
+ status = iterator->methods.next(iterator,
+ (void *) iterator->base.msgs->pdata, MSG_BATCH_SIZE,
+ user_count);
BT_LOGD("User method returned: status=%s",
- bt_notification_iterator_status_string(status));
+ bt_message_iterator_status_string(status));
if (status < 0) {
BT_LOGW_STR("User method failed.");
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_object_put_ref() the returned notification if
- * the status is
- * BT_NOTIFICATION_ITERATOR_STATUS_OK because
- * otherwise this field could be garbage.
- */
- if (status == BT_NOTIFICATION_ITERATOR_STATUS_OK) {
- uint64_t i;
- bt_notification_array notifs =
- (void *) user_iterator->notifs->pdata;
-
- for (i = 0; i < *user_count; i++) {
- bt_object_put_ref(notifs[i]);
- }
- }
-
- status = BT_NOTIFICATION_ITERATOR_STATUS_CANCELED;
- goto end;
- }
+#ifdef BT_DEV_MODE
+ /*
+ * There is no way that this iterator could have been finalized
+ * during its "next" method, as the only way to do this is to
+ * put the last iterator's reference, and this can only be done
+ * by its downstream owner.
+ *
+ * For the same reason, there is no way that this iterator could
+ * have seeked (cannot seek a self message iterator).
+ */
+ BT_ASSERT(iterator->state ==
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE);
+#endif
switch (status) {
- case BT_NOTIFICATION_ITERATOR_STATUS_OK:
- BT_ASSERT_PRE(validate_notifications(iterator, *user_count),
- "Notifications are invalid at this point: "
- "%![notif-iter-]+i, count=%" PRIu64,
- iterator, *user_count);
- *user_notifs = (void *) user_iterator->notifs->pdata;
+ case BT_MESSAGE_ITERATOR_STATUS_OK:
+ BT_ASSERT_PRE(*user_count <= MSG_BATCH_SIZE,
+ "Invalid returned message count: greater than "
+ "batch size: count=%" PRIu64 ", batch-size=%u",
+ *user_count, MSG_BATCH_SIZE);
+ *msgs = (void *) iterator->base.msgs->pdata;
break;
- case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN:
- status = BT_NOTIFICATION_ITERATOR_STATUS_AGAIN;
+ case BT_MESSAGE_ITERATOR_STATUS_AGAIN:
goto end;
- case BT_NOTIFICATION_ITERATOR_STATUS_END:
- BT_ASSERT_PRE(priv_conn_notif_iter_can_end(iterator),
- "Notification iterator cannot end at this point: "
- "%!+i", iterator);
- BT_ASSERT(iterator->state ==
- BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ACTIVE);
- iterator->state = BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ENDED;
- status = BT_NOTIFICATION_ITERATOR_STATUS_END;
- BT_LOGD("Set new status: status=%s",
- bt_notification_iterator_status_string(status));
+ case BT_MESSAGE_ITERATOR_STATUS_END:
+ set_self_comp_port_input_msg_iterator_state(iterator,
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED);
goto end;
default:
/* Unknown non-error status */
return status;
}
-enum bt_notification_iterator_status
-bt_output_port_notification_iterator_next(
- struct bt_notification_iterator *iterator,
- bt_notification_array *notifs_to_user,
+enum bt_message_iterator_status bt_port_output_message_iterator_next(
+ struct bt_port_output_message_iterator *iterator,
+ bt_message_array_const *msgs_to_user,
uint64_t *count_to_user)
{
- enum bt_notification_iterator_status status;
- struct bt_notification_iterator_output_port *out_port_iter =
- (void *) iterator;
+ enum bt_message_iterator_status status;
enum bt_graph_status graph_status;
- BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator");
- BT_ASSERT_PRE_NON_NULL(notifs_to_user, "Notification array");
- BT_ASSERT_PRE_NON_NULL(count_to_user, "Notification count");
- BT_ASSERT_PRE(iterator->type ==
- BT_NOTIFICATION_ITERATOR_TYPE_OUTPUT_PORT,
- "Notification iterator was not created from an output port: "
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ BT_ASSERT_PRE_NON_NULL(msgs_to_user, "Message array (output)");
+ BT_ASSERT_PRE_NON_NULL(count_to_user, "Message count (output)");
+ BT_LIB_LOGD("Getting next output port message iterator's messages: "
"%!+i", iterator);
- BT_LIB_LOGD("Getting next output port notification iterator's notification: %!+i",
- iterator);
-
- graph_status = bt_graph_consume_sink_no_check(
- out_port_iter->graph, out_port_iter->colander);
+ graph_status = bt_graph_consume_sink_no_check(iterator->graph,
+ iterator->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;
+ status = (int) graph_status;
break;
case BT_GRAPH_STATUS_OK:
- status = BT_NOTIFICATION_ITERATOR_STATUS_OK;
+ status = BT_MESSAGE_ITERATOR_STATUS_OK;
/*
- * On success, the colander sink moves the notifications
+ * On success, the colander sink moves the messages
* to this iterator's array and sets this iterator's
- * notification count: move them to the user.
+ * message count: move them to the user.
*/
- *notifs_to_user = (void *) iterator->notifs->pdata;
- *count_to_user = out_port_iter->count;
+ *msgs_to_user = (void *) iterator->base.msgs->pdata;
+ *count_to_user = iterator->count;
break;
default:
/* Other errors */
- status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
+ status = BT_MESSAGE_ITERATOR_STATUS_ERROR;
}
return status;
}
-struct bt_component *bt_private_connection_notification_iterator_get_component(
- struct bt_notification_iterator *iterator)
+struct bt_component *
+bt_self_component_port_input_message_iterator_borrow_component(
+ struct bt_self_component_port_input_message_iterator *iterator)
{
- struct bt_notification_iterator_private_connection *iter_priv_conn;
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ return iterator->upstream_component;
+}
- BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator");
- BT_ASSERT_PRE(iterator->type ==
- BT_NOTIFICATION_ITERATOR_TYPE_PRIVATE_CONNECTION,
- "Notification iterator was not created from a private connection: "
- "%!+i", iterator);
- iter_priv_conn = (void *) iterator;
- return bt_object_get_ref(iter_priv_conn->upstream_component);
+const struct bt_component *
+bt_self_component_port_input_message_iterator_borrow_component_const(
+ const struct bt_self_component_port_input_message_iterator *iterator)
+{
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ return iterator->upstream_component;
+}
+
+struct bt_self_component *bt_self_message_iterator_borrow_component(
+ struct bt_self_message_iterator *self_iterator)
+{
+ struct bt_self_component_port_input_message_iterator *iterator =
+ (void *) self_iterator;
+
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ return (void *) iterator->upstream_component;
}
-struct bt_private_component *
-bt_private_connection_private_notification_iterator_get_private_component(
- struct bt_private_connection_private_notification_iterator *private_iterator)
+struct bt_self_port_output *bt_self_message_iterator_borrow_port(
+ struct bt_self_message_iterator *self_iterator)
{
- return bt_private_component_from_component(
- bt_private_connection_notification_iterator_get_component(
- (void *) bt_private_connection_notification_iterator_borrow_from_private(private_iterator)));
+ struct bt_self_component_port_input_message_iterator *iterator =
+ (void *) self_iterator;
+
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ return (void *) iterator->upstream_port;
}
static
-void bt_output_port_notification_iterator_destroy(struct bt_object *obj)
+void bt_port_output_message_iterator_destroy(struct bt_object *obj)
{
- struct bt_notification_iterator_output_port *iterator =
- (void *) container_of(obj, struct bt_notification_iterator, base);
+ struct bt_port_output_message_iterator *iterator = (void *) obj;
- BT_LOGD("Destroying output port notification iterator object: addr=%p",
+ BT_LIB_LOGD("Destroying output port message iterator object: %!+i",
iterator);
BT_LOGD_STR("Putting graph.");
- bt_object_put_ref(iterator->graph);
+ BT_OBJECT_PUT_REF_AND_RESET(iterator->graph);
BT_LOGD_STR("Putting colander sink component.");
- bt_object_put_ref(iterator->colander);
- destroy_base_notification_iterator(obj);
+ BT_OBJECT_PUT_REF_AND_RESET(iterator->colander);
+ destroy_base_message_iterator(obj);
}
-struct bt_notification_iterator *bt_output_port_notification_iterator_create(
- struct bt_port *output_port,
- const char *colander_component_name)
+struct bt_port_output_message_iterator *
+bt_port_output_message_iterator_create(struct bt_graph *graph,
+ const struct bt_port_output *output_port)
{
- struct bt_notification_iterator_output_port *iterator = NULL;
- struct bt_component_class *colander_comp_cls = NULL;
+ struct bt_port_output_message_iterator *iterator = NULL;
+ struct bt_component_class_sink *colander_comp_cls = NULL;
struct bt_component *output_port_comp = NULL;
- struct bt_component *colander_comp;
- struct bt_graph *graph = NULL;
+ struct bt_component_sink *colander_comp;
enum bt_graph_status graph_status;
- const char *colander_comp_name;
- struct bt_port *colander_in_port = NULL;
+ struct bt_port_input *colander_in_port = NULL;
struct bt_component_class_sink_colander_data colander_data;
int ret;
+ BT_ASSERT_PRE_NON_NULL(graph, "Graph");
BT_ASSERT_PRE_NON_NULL(output_port, "Output port");
- BT_ASSERT_PRE(bt_port_get_type(output_port) == BT_PORT_TYPE_OUTPUT,
- "Port is not an output port: %!+p", output_port);
- output_port_comp = bt_port_get_component(output_port);
+ output_port_comp = bt_port_borrow_component_inline(
+ (const void *) output_port);
BT_ASSERT_PRE(output_port_comp,
"Output port has no component: %!+p", output_port);
- graph = bt_object_get_ref(bt_component_borrow_graph(output_port_comp));
- BT_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);
+ BT_ASSERT_PRE(bt_component_borrow_graph(output_port_comp) ==
+ (void *) graph,
+ "Output port is not part of graph: %![graph-]+g, %![port-]+p",
+ graph, output_port);
+ BT_ASSERT_PRE(!graph->has_sink,
+ "Graph already has a sink component: %![graph-]+g");
+
+ /* Create message iterator */
+ BT_LIB_LOGD("Creating message iterator on output port: "
+ "%![port-]+p, %![comp-]+c", output_port, output_port_comp);
+ iterator = g_new0(struct bt_port_output_message_iterator, 1);
if (!iterator) {
- BT_LOGE_STR("Failed to allocate one output port notification iterator.");
+ BT_LOGE_STR("Failed to allocate one output port message iterator.");
goto error;
}
- ret = init_notification_iterator((void *) iterator,
- BT_NOTIFICATION_ITERATOR_TYPE_OUTPUT_PORT,
- bt_output_port_notification_iterator_destroy);
+ ret = init_message_iterator((void *) iterator,
+ BT_MESSAGE_ITERATOR_TYPE_PORT_OUTPUT,
+ bt_port_output_message_iterator_destroy);
if (ret) {
- /* init_notification_iterator() logs errors */
+ /* init_message_iterator() logs errors */
BT_OBJECT_PUT_REF_AND_RESET(iterator);
goto end;
}
goto error;
}
- BT_OBJECT_MOVE_REF(iterator->graph, graph);
- colander_comp_name =
- colander_component_name ? colander_component_name : "colander";
- colander_data.notifs = (void *) iterator->base.notifs->pdata;
+ iterator->graph = graph;
+ bt_object_get_no_null_check(iterator->graph);
+ colander_data.msgs = (void *) iterator->base.msgs->pdata;
colander_data.count_addr = &iterator->count;
- graph_status = bt_private_graph_add_component_with_init_method_data(
- (void *) iterator->graph, colander_comp_cls, colander_comp_name,
- NULL, &colander_data, &iterator->colander);
+ /* Hope that nobody uses this very unique name */
+ graph_status =
+ bt_graph_add_sink_component_with_init_method_data(
+ (void *) graph, colander_comp_cls,
+ "colander-36ac3409-b1a8-4d60-ab1f-4fdf341a8fb1",
+ NULL, &colander_data, (void *) &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_LIB_LOGW("Cannot add colander sink component to graph: "
+ "%1[graph-]+g, status=%s", graph,
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);
+ colander_in_port =
+ (void *) bt_component_sink_borrow_input_port_by_index_const(
+ (void *) iterator->colander, 0);
BT_ASSERT(colander_in_port);
- graph_status = bt_private_graph_connect_ports((void *) iterator->graph,
+ graph_status = bt_graph_connect_ports(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_LIB_LOGW("Cannot add colander sink component to graph: "
+ "%![graph-]+g, %![comp-]+c, status=%s", graph,
+ iterator->colander,
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
+ * nonconsumable forever so that only this message 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 notification iterator's notification
+ * This avoids leaking the message created by the colander
+ * sink and moved to the message iterator's message
* member.
*/
- bt_graph_set_can_consume(iterator->graph, BT_FALSE);
+ bt_graph_set_can_consume(iterator->graph, false);
+
+ /*
+ * Also set the graph as being configured: it has no active sink
+ * anyway, so we don't need to call bt_graph_configure().
+ */
+ graph->config_state = BT_GRAPH_CONFIGURATION_STATE_CONFIGURED;
goto end;
error:
* succeeds.
*/
ret = bt_graph_remove_unconnected_component(iterator->graph,
- colander_comp);
+ (void *) colander_comp);
BT_ASSERT(ret == 0);
}
BT_OBJECT_PUT_REF_AND_RESET(iterator);
end:
- bt_object_put_ref(colander_in_port);
bt_object_put_ref(colander_comp_cls);
- bt_object_put_ref(output_port_comp);
- bt_object_put_ref(graph);
return (void *) iterator;
}
-struct bt_notification_iterator *
-bt_private_connection_notification_iterator_borrow_from_private(
- struct bt_private_connection_private_notification_iterator *private_notification_iterator)
+bt_bool bt_self_component_port_input_message_iterator_can_seek_ns_from_origin(
+ struct bt_self_component_port_input_message_iterator *iterator,
+ int64_t ns_from_origin)
+{
+ bt_bool can = BT_FALSE;
+
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator);
+ BT_ASSERT_PRE(
+ bt_component_borrow_graph(iterator->upstream_component)->config_state !=
+ BT_GRAPH_CONFIGURATION_STATE_CONFIGURING,
+ "Graph is not configured: %!+g",
+ bt_component_borrow_graph(iterator->upstream_component));
+
+ if (iterator->methods.can_seek_ns_from_origin) {
+ can = iterator->methods.can_seek_ns_from_origin(iterator,
+ ns_from_origin);
+ goto end;
+ }
+
+ /*
+ * Automatic seeking fall back: if we can seek to the beginning,
+ * then we can automatically seek to any message.
+ */
+ if (iterator->methods.can_seek_beginning) {
+ can = iterator->methods.can_seek_beginning(iterator);
+ }
+
+end:
+ return can;
+}
+
+bt_bool bt_self_component_port_input_message_iterator_can_seek_beginning(
+ struct bt_self_component_port_input_message_iterator *iterator)
+{
+ bt_bool can = BT_FALSE;
+
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator);
+ BT_ASSERT_PRE(
+ bt_component_borrow_graph(iterator->upstream_component)->config_state !=
+ BT_GRAPH_CONFIGURATION_STATE_CONFIGURING,
+ "Graph is not configured: %!+g",
+ bt_component_borrow_graph(iterator->upstream_component));
+
+ if (iterator->methods.can_seek_beginning) {
+ can = iterator->methods.can_seek_beginning(iterator);
+ }
+
+ return can;
+}
+
+static inline
+void _set_iterator_state_after_seeking(
+ struct bt_self_component_port_input_message_iterator *iterator,
+ enum bt_message_iterator_status status)
+{
+ enum bt_self_component_port_input_message_iterator_state new_state = 0;
+
+ /* Set iterator's state depending on seeking status */
+ switch (status) {
+ case BT_MESSAGE_ITERATOR_STATUS_OK:
+ new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE;
+ break;
+ case BT_MESSAGE_ITERATOR_STATUS_AGAIN:
+ new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_AGAIN;
+ break;
+ case BT_MESSAGE_ITERATOR_STATUS_ERROR:
+ case BT_MESSAGE_ITERATOR_STATUS_NOMEM:
+ new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_ERROR;
+ break;
+ case BT_MESSAGE_ITERATOR_STATUS_END:
+ new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED;
+ break;
+ default:
+ abort();
+ }
+
+ set_self_comp_port_input_msg_iterator_state(iterator, new_state);
+}
+
+#ifdef BT_DEV_MODE
+# define set_iterator_state_after_seeking _set_iterator_state_after_seeking
+#else
+# define set_iterator_state_after_seeking(_iter, _status) ((void) _iter); ((void) _status);
+#endif
+
+enum bt_message_iterator_status
+bt_self_component_port_input_message_iterator_seek_beginning(
+ struct bt_self_component_port_input_message_iterator *iterator)
+{
+ int status;
+
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator);
+ BT_ASSERT_PRE(
+ bt_component_borrow_graph(iterator->upstream_component)->config_state !=
+ BT_GRAPH_CONFIGURATION_STATE_CONFIGURING,
+ "Graph is not configured: %!+g",
+ bt_component_borrow_graph(iterator->upstream_component));
+ BT_ASSERT_PRE(
+ bt_self_component_port_input_message_iterator_can_seek_beginning(
+ iterator),
+ "Message iterator cannot seek beginning: %!+i", iterator);
+ BT_LIB_LOGD("Calling user's \"seek beginning\" method: %!+i", iterator);
+ set_self_comp_port_input_msg_iterator_state(iterator,
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_SEEKING);
+ status = iterator->methods.seek_beginning(iterator);
+ BT_LOGD("User method returned: status=%s",
+ bt_message_iterator_status_string(status));
+ BT_ASSERT_PRE(status == BT_MESSAGE_ITERATOR_STATUS_OK ||
+ status == BT_MESSAGE_ITERATOR_STATUS_ERROR ||
+ status == BT_MESSAGE_ITERATOR_STATUS_NOMEM ||
+ status == BT_MESSAGE_ITERATOR_STATUS_AGAIN,
+ "Unexpected status: %![iter-]+i, status=%s",
+ iterator, bt_common_self_message_iterator_status_string(status));
+ set_iterator_state_after_seeking(iterator, status);
+ return status;
+}
+
+static inline
+enum bt_message_iterator_status auto_seek_handle_message(
+ struct bt_self_component_port_input_message_iterator *iterator,
+ int64_t ns_from_origin, const struct bt_message *msg,
+ bool *got_first)
+{
+ enum bt_message_iterator_status status = BT_MESSAGE_ITERATOR_STATUS_OK;
+ int64_t msg_ns_from_origin;
+ const struct bt_clock_snapshot *clk_snapshot = NULL;
+ int ret;
+
+ BT_ASSERT(msg);
+ BT_ASSERT(got_first);
+
+ switch (msg->type) {
+ case BT_MESSAGE_TYPE_EVENT:
+ {
+ const struct bt_message_event *event_msg =
+ (const void *) msg;
+
+ clk_snapshot = event_msg->default_cs;
+ BT_ASSERT_PRE(clk_snapshot,
+ "Event message has no default clock snapshot: %!+n",
+ event_msg);
+ break;
+ }
+ case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY:
+ {
+ const struct bt_message_message_iterator_inactivity *inactivity_msg =
+ (const void *) msg;
+
+ clk_snapshot = inactivity_msg->default_cs;
+ BT_ASSERT(clk_snapshot);
+ break;
+ }
+ case BT_MESSAGE_TYPE_PACKET_BEGINNING:
+ case BT_MESSAGE_TYPE_PACKET_END:
+ {
+ const struct bt_message_packet *packet_msg =
+ (const void *) msg;
+
+ clk_snapshot = packet_msg->default_cs;
+ BT_ASSERT_PRE(clk_snapshot,
+ "Packet message has no default clock snapshot: %!+n",
+ packet_msg);
+ break;
+ }
+ case BT_MESSAGE_TYPE_DISCARDED_EVENTS:
+ case BT_MESSAGE_TYPE_DISCARDED_PACKETS:
+ {
+ struct bt_message_discarded_items *msg_disc_items =
+ (void *) msg;
+
+ BT_ASSERT_PRE(msg_disc_items->default_begin_cs &&
+ msg_disc_items->default_end_cs,
+ "Discarded events/packets message has no default clock snapshots: %!+n",
+ msg_disc_items);
+ ret = bt_clock_snapshot_get_ns_from_origin(
+ msg_disc_items->default_begin_cs,
+ &msg_ns_from_origin);
+ if (ret) {
+ status = BT_MESSAGE_ITERATOR_STATUS_ERROR;
+ goto end;
+ }
+
+ if (msg_ns_from_origin >= ns_from_origin) {
+ *got_first = true;
+ goto push_msg;
+ }
+
+ ret = bt_clock_snapshot_get_ns_from_origin(
+ msg_disc_items->default_end_cs,
+ &msg_ns_from_origin);
+ if (ret) {
+ status = BT_MESSAGE_ITERATOR_STATUS_ERROR;
+ goto end;
+ }
+
+ if (msg_ns_from_origin >= ns_from_origin) {
+ /*
+ * The discarded items message's beginning time
+ * is before the requested seeking time, but its
+ * end time is after. Modify the message so as
+ * to set its beginning time to the requested
+ * seeking time, and make its item count unknown
+ * as we don't know if items were really
+ * discarded within the new time range.
+ */
+ uint64_t new_begin_raw_value;
+
+ ret = bt_clock_class_clock_value_from_ns_from_origin(
+ msg_disc_items->default_end_cs->clock_class,
+ ns_from_origin, &new_begin_raw_value);
+ if (ret) {
+ status = BT_MESSAGE_ITERATOR_STATUS_ERROR;
+ goto end;
+ }
+
+ bt_clock_snapshot_set_raw_value(
+ msg_disc_items->default_begin_cs,
+ new_begin_raw_value);
+ msg_disc_items->count.base.avail =
+ BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE;
+
+ /*
+ * It is safe to push it because its beginning
+ * time is exactly the requested seeking time.
+ */
+ goto push_msg;
+ } else {
+ goto skip_msg;
+ }
+ }
+ case BT_MESSAGE_TYPE_STREAM_ACTIVITY_BEGINNING:
+ {
+ const struct bt_message_stream_activity *stream_act_msg =
+ (const void *) msg;
+
+ switch (stream_act_msg->default_cs_state) {
+ case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_UNKNOWN:
+ case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_INFINITE:
+ /*
+ * -inf is always less than any requested time,
+ * and we can't assume any specific time for an
+ * unknown clock snapshot, so skip this.
+ */
+ goto skip_msg;
+ case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_KNOWN:
+ clk_snapshot = stream_act_msg->default_cs;
+ BT_ASSERT(clk_snapshot);
+ break;
+ default:
+ abort();
+ }
+
+ break;
+ }
+ case BT_MESSAGE_TYPE_STREAM_ACTIVITY_END:
+ {
+ const struct bt_message_stream_activity *stream_act_msg =
+ (const void *) msg;
+
+ switch (stream_act_msg->default_cs_state) {
+ case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_UNKNOWN:
+ /*
+ * We can't assume any specific time for an
+ * unknown clock snapshot, so skip this.
+ */
+ goto skip_msg;
+ case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_INFINITE:
+ /*
+ * +inf is always greater than any requested
+ * time.
+ */
+ *got_first = true;
+ goto push_msg;
+ case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_KNOWN:
+ clk_snapshot = stream_act_msg->default_cs;
+ BT_ASSERT(clk_snapshot);
+ break;
+ default:
+ abort();
+ }
+
+ break;
+ }
+ case BT_MESSAGE_TYPE_STREAM_BEGINNING:
+ case BT_MESSAGE_TYPE_STREAM_END:
+ /* Ignore */
+ goto skip_msg;
+ default:
+ abort();
+ }
+
+ BT_ASSERT(clk_snapshot);
+ ret = bt_clock_snapshot_get_ns_from_origin(clk_snapshot,
+ &msg_ns_from_origin);
+ if (ret) {
+ status = BT_MESSAGE_ITERATOR_STATUS_ERROR;
+ goto end;
+ }
+
+ if (msg_ns_from_origin >= ns_from_origin) {
+ *got_first = true;
+ goto push_msg;
+ }
+
+skip_msg:
+ bt_object_put_no_null_check(msg);
+ msg = NULL;
+ goto end;
+
+push_msg:
+ g_queue_push_head(iterator->auto_seek_msgs, (void *) msg);
+ msg = NULL;
+
+end:
+ BT_ASSERT(!msg || status != BT_MESSAGE_ITERATOR_STATUS_OK);
+ return status;
+}
+
+static
+enum bt_message_iterator_status find_message_ge_ns_from_origin(
+ struct bt_self_component_port_input_message_iterator *iterator,
+ int64_t ns_from_origin)
+{
+ int status;
+ enum bt_self_component_port_input_message_iterator_state init_state =
+ iterator->state;
+ const struct bt_message *messages[MSG_BATCH_SIZE];
+ uint64_t user_count = 0;
+ uint64_t i;
+ bool got_first = false;
+
+ BT_ASSERT(iterator);
+ memset(&messages[0], 0, sizeof(messages[0]) * MSG_BATCH_SIZE);
+
+ /*
+ * Make this iterator temporarily active (not seeking) to call
+ * the "next" method.
+ */
+ set_self_comp_port_input_msg_iterator_state(iterator,
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE);
+
+ BT_ASSERT(iterator->methods.next);
+
+ while (!got_first) {
+ /*
+ * Call the user's "next" method to get the next
+ * messages and status.
+ */
+ BT_LOGD_STR("Calling user's \"next\" method.");
+ status = iterator->methods.next(iterator,
+ &messages[0], MSG_BATCH_SIZE, &user_count);
+ BT_LOGD("User method returned: status=%s",
+ bt_message_iterator_status_string(status));
+
+#ifdef BT_DEV_MODE
+ /*
+ * The user's "next" method must not do any action which
+ * would change the iterator's state.
+ */
+ BT_ASSERT(iterator->state ==
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE);
+#endif
+
+ switch (status) {
+ case BT_MESSAGE_ITERATOR_STATUS_OK:
+ BT_ASSERT_PRE(user_count <= MSG_BATCH_SIZE,
+ "Invalid returned message count: greater than "
+ "batch size: count=%" PRIu64 ", batch-size=%u",
+ user_count, MSG_BATCH_SIZE);
+ break;
+ case BT_MESSAGE_ITERATOR_STATUS_AGAIN:
+ case BT_MESSAGE_ITERATOR_STATUS_ERROR:
+ case BT_MESSAGE_ITERATOR_STATUS_NOMEM:
+ case BT_MESSAGE_ITERATOR_STATUS_END:
+ goto end;
+ default:
+ abort();
+ }
+
+ for (i = 0; i < user_count; i++) {
+ if (got_first) {
+ g_queue_push_head(iterator->auto_seek_msgs,
+ (void *) messages[i]);
+ messages[i] = NULL;
+ continue;
+ }
+
+ status = auto_seek_handle_message(iterator,
+ ns_from_origin, messages[i], &got_first);
+ if (status == BT_MESSAGE_ITERATOR_STATUS_OK) {
+ /* Message was either pushed or moved */
+ messages[i] = NULL;
+ } else {
+ goto end;
+ }
+ }
+ }
+
+end:
+ for (i = 0; i < user_count; i++) {
+ if (messages[i]) {
+ bt_object_put_no_null_check(messages[i]);
+ }
+ }
+
+ set_self_comp_port_input_msg_iterator_state(iterator, init_state);
+ return status;
+}
+
+static
+enum bt_self_message_iterator_status post_auto_seek_next(
+ struct bt_self_component_port_input_message_iterator *iterator,
+ bt_message_array_const msgs, uint64_t capacity,
+ uint64_t *count)
+{
+ BT_ASSERT(!g_queue_is_empty(iterator->auto_seek_msgs));
+ *count = 0;
+
+ /*
+ * Move auto-seek messages to the output array (which is this
+ * iterator's base message array).
+ */
+ while (capacity > 0 && !g_queue_is_empty(iterator->auto_seek_msgs)) {
+ msgs[*count] = g_queue_pop_tail(iterator->auto_seek_msgs);
+ capacity--;
+ (*count)++;
+ }
+
+ BT_ASSERT(*count > 0);
+
+ if (g_queue_is_empty(iterator->auto_seek_msgs)) {
+ /* No more auto-seek messages */
+ switch (iterator->upstream_component->class->type) {
+ case BT_COMPONENT_CLASS_TYPE_SOURCE:
+ {
+ struct bt_component_class_source *src_comp_cls =
+ (void *) iterator->upstream_component->class;
+
+ iterator->methods.next =
+ (bt_self_component_port_input_message_iterator_next_method)
+ src_comp_cls->methods.msg_iter_next;
+ break;
+ }
+ case BT_COMPONENT_CLASS_TYPE_FILTER:
+ {
+ struct bt_component_class_filter *flt_comp_cls =
+ (void *) iterator->upstream_component->class;
+
+ iterator->methods.next =
+ (bt_self_component_port_input_message_iterator_next_method)
+ flt_comp_cls->methods.msg_iter_next;
+ break;
+ }
+ default:
+ abort();
+ }
+ }
+
+ return BT_SELF_MESSAGE_ITERATOR_STATUS_OK;
+}
+
+enum bt_message_iterator_status
+bt_self_component_port_input_message_iterator_seek_ns_from_origin(
+ struct bt_self_component_port_input_message_iterator *iterator,
+ int64_t ns_from_origin)
{
- return (void *) private_notification_iterator;
+ int status;
+
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator);
+ BT_ASSERT_PRE(
+ bt_component_borrow_graph(iterator->upstream_component)->config_state !=
+ BT_GRAPH_CONFIGURATION_STATE_CONFIGURING,
+ "Graph is not configured: %!+g",
+ bt_component_borrow_graph(iterator->upstream_component));
+ BT_ASSERT_PRE(
+ bt_self_component_port_input_message_iterator_can_seek_ns_from_origin(
+ iterator, ns_from_origin),
+ "Message iterator cannot seek nanoseconds from origin: %!+i, "
+ "ns-from-origin=%" PRId64, iterator, ns_from_origin);
+ set_self_comp_port_input_msg_iterator_state(iterator,
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_SEEKING);
+
+ if (iterator->methods.seek_ns_from_origin) {
+ BT_LIB_LOGD("Calling user's \"seek nanoseconds from origin\" method: "
+ "%![iter-]+i, ns=%" PRId64, iterator, ns_from_origin);
+ status = iterator->methods.seek_ns_from_origin(iterator,
+ ns_from_origin);
+ BT_LOGD("User method returned: status=%s",
+ bt_message_iterator_status_string(status));
+ BT_ASSERT_PRE(status == BT_MESSAGE_ITERATOR_STATUS_OK ||
+ status == BT_MESSAGE_ITERATOR_STATUS_ERROR ||
+ status == BT_MESSAGE_ITERATOR_STATUS_NOMEM ||
+ status == BT_MESSAGE_ITERATOR_STATUS_AGAIN,
+ "Unexpected status: %![iter-]+i, status=%s",
+ iterator,
+ bt_common_self_message_iterator_status_string(status));
+ } else {
+ /* Start automatic seeking: seek beginning first */
+ BT_ASSERT(iterator->methods.can_seek_beginning(iterator));
+ BT_ASSERT(iterator->methods.seek_beginning);
+ BT_LIB_LOGD("Calling user's \"seek beginning\" method: %!+i",
+ iterator);
+ status = iterator->methods.seek_beginning(iterator);
+ BT_LOGD("User method returned: status=%s",
+ bt_message_iterator_status_string(status));
+ BT_ASSERT_PRE(status == BT_MESSAGE_ITERATOR_STATUS_OK ||
+ status == BT_MESSAGE_ITERATOR_STATUS_ERROR ||
+ status == BT_MESSAGE_ITERATOR_STATUS_NOMEM ||
+ status == BT_MESSAGE_ITERATOR_STATUS_AGAIN,
+ "Unexpected status: %![iter-]+i, status=%s",
+ iterator,
+ bt_common_self_message_iterator_status_string(status));
+ switch (status) {
+ case BT_MESSAGE_ITERATOR_STATUS_OK:
+ break;
+ case BT_MESSAGE_ITERATOR_STATUS_ERROR:
+ case BT_MESSAGE_ITERATOR_STATUS_NOMEM:
+ case BT_MESSAGE_ITERATOR_STATUS_AGAIN:
+ goto end;
+ default:
+ abort();
+ }
+
+ /*
+ * Find the first message which has a default clock
+ * snapshot greater than or equal to the requested
+ * seeking time, and move the received messages from
+ * this point in the batch to this iterator's auto-seek
+ * message queue.
+ */
+ while (!g_queue_is_empty(iterator->auto_seek_msgs)) {
+ bt_object_put_no_null_check(
+ g_queue_pop_tail(iterator->auto_seek_msgs));
+ }
+
+ status = find_message_ge_ns_from_origin(iterator,
+ ns_from_origin);
+ switch (status) {
+ case BT_MESSAGE_ITERATOR_STATUS_OK:
+ case BT_MESSAGE_ITERATOR_STATUS_END:
+ /*
+ * If there are messages in the auto-seek
+ * message queue, replace the user's "next"
+ * method with a custom, temporary "next" method
+ * which returns them.
+ */
+ if (!g_queue_is_empty(iterator->auto_seek_msgs)) {
+ iterator->methods.next =
+ (bt_self_component_port_input_message_iterator_next_method)
+ post_auto_seek_next;
+ }
+
+ /*
+ * `BT_MESSAGE_ITERATOR_STATUS_END` becomes
+ * `BT_MESSAGE_ITERATOR_STATUS_OK`: the next
+ * time this iterator's "next" method is called,
+ * it will return
+ * `BT_MESSAGE_ITERATOR_STATUS_END`.
+ */
+ status = BT_MESSAGE_ITERATOR_STATUS_OK;
+ break;
+ case BT_MESSAGE_ITERATOR_STATUS_ERROR:
+ case BT_MESSAGE_ITERATOR_STATUS_NOMEM:
+ case BT_MESSAGE_ITERATOR_STATUS_AGAIN:
+ goto end;
+ default:
+ abort();
+ }
+ }
+
+end:
+ set_iterator_state_after_seeking(iterator, status);
+ return status;
+}
+
+static inline
+bt_self_component_port_input_message_iterator *
+borrow_output_port_message_iterator_upstream_iterator(
+ struct bt_port_output_message_iterator *iterator)
+{
+ struct bt_component_class_sink_colander_priv_data *colander_data;
+
+ BT_ASSERT(iterator);
+ colander_data = (void *) iterator->colander->parent.user_data;
+ BT_ASSERT(colander_data);
+ BT_ASSERT(colander_data->msg_iter);
+ return colander_data->msg_iter;
+}
+
+bt_bool bt_port_output_message_iterator_can_seek_ns_from_origin(
+ struct bt_port_output_message_iterator *iterator,
+ int64_t ns_from_origin)
+{
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ return bt_self_component_port_input_message_iterator_can_seek_ns_from_origin(
+ borrow_output_port_message_iterator_upstream_iterator(
+ iterator), ns_from_origin);
+}
+
+bt_bool bt_port_output_message_iterator_can_seek_beginning(
+ struct bt_port_output_message_iterator *iterator)
+{
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ return bt_self_component_port_input_message_iterator_can_seek_beginning(
+ borrow_output_port_message_iterator_upstream_iterator(
+ iterator));
+}
+
+enum bt_message_iterator_status bt_port_output_message_iterator_seek_ns_from_origin(
+ struct bt_port_output_message_iterator *iterator,
+ int64_t ns_from_origin)
+{
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ return bt_self_component_port_input_message_iterator_seek_ns_from_origin(
+ borrow_output_port_message_iterator_upstream_iterator(iterator),
+ ns_from_origin);
+}
+
+enum bt_message_iterator_status bt_port_output_message_iterator_seek_beginning(
+ struct bt_port_output_message_iterator *iterator)
+{
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+ return bt_self_component_port_input_message_iterator_seek_beginning(
+ borrow_output_port_message_iterator_upstream_iterator(
+ iterator));
+}
+
+void bt_port_output_message_iterator_get_ref(
+ const struct bt_port_output_message_iterator *iterator)
+{
+ bt_object_get_ref(iterator);
+}
+
+void bt_port_output_message_iterator_put_ref(
+ const struct bt_port_output_message_iterator *iterator)
+{
+ bt_object_put_ref(iterator);
+}
+
+void bt_self_component_port_input_message_iterator_get_ref(
+ const struct bt_self_component_port_input_message_iterator *iterator)
+{
+ bt_object_get_ref(iterator);
+}
+
+void bt_self_component_port_input_message_iterator_put_ref(
+ const struct bt_self_component_port_input_message_iterator *iterator)
+{
+ bt_object_put_ref(iterator);
}
projects / babeltrace.git / blobdiff