struct bt_self_component_port_input *self_port,
struct bt_self_component_port_input_message_iterator **message_iterator)
{
- typedef enum bt_component_class_message_iterator_init_method_status (*init_method_t)(
- void *, void *, void *);
+ typedef enum bt_component_class_message_iterator_initialize_method_status (*init_method_t)(
+ void *, void *, void *, void *);
init_method_t init_method = NULL;
struct bt_self_component_port_input_message_iterator *iterator =
(void *) upstream_comp_cls;
init_method =
- (init_method_t) src_comp_cls->methods.msg_iter_init;
+ (init_method_t) src_comp_cls->methods.msg_iter_initialize;
break;
}
case BT_COMPONENT_CLASS_TYPE_FILTER:
(void *) upstream_comp_cls;
init_method =
- (init_method_t) flt_comp_cls->methods.msg_iter_init;
+ (init_method_t) flt_comp_cls->methods.msg_iter_initialize;
break;
}
default:
}
if (init_method) {
- enum bt_component_class_message_iterator_init_method_status iter_status;
+ enum bt_component_class_message_iterator_initialize_method_status iter_status;
BT_LIB_LOGD("Calling user's initialization method: %!+i", iterator);
- iter_status = init_method(iterator, upstream_comp,
+ iter_status = init_method(iterator, &iterator->config, upstream_comp,
upstream_port);
BT_LOGD("User method returned: status=%s",
bt_common_func_status_string(iter_status));
status = iter_status;
goto error;
}
+
+ iterator->config.frozen = true;
}
if (downstream_msg_iter) {
"%!+i, user-data-addr=%p", iterator, data);
}
+void bt_self_message_iterator_configuration_set_can_seek_forward(
+ bt_self_message_iterator_configuration *config,
+ bt_bool can_seek_forward)
+{
+ BT_ASSERT_PRE_NON_NULL(config, "Message iterator configuration");
+ BT_ASSERT_PRE_DEV_HOT(config, "Message iterator configuration", "");
+
+ config->can_seek_forward = can_seek_forward;
+}
+
/*
* Validate that the default clock snapshot in `msg` doesn't make us go back in
* time.
*/
*can_seek = -1;
+ BT_LIB_LOGD("Calling user's \"can seek nanoseconds from origin\" method: %!+i",
+ iterator);
+
status = (int) iterator->methods.can_seek_ns_from_origin(iterator,
ns_from_origin, can_seek);
- BT_ASSERT_POST(
- status != BT_FUNC_STATUS_OK ||
- *can_seek == BT_TRUE ||
- *can_seek == BT_FALSE,
+ if (status != BT_FUNC_STATUS_OK) {
+ BT_LIB_LOGW_APPEND_CAUSE(
+ "Component input port message iterator's \"can seek nanoseconds from origin\" method failed: "
+ "%![iter-]+i, status=%s",
+ iterator, bt_common_func_status_string(status));
+ goto end;
+ }
+
+ BT_ASSERT_POST(*can_seek == BT_TRUE || *can_seek == BT_FALSE,
"Unexpected boolean value returned from user's \"can seek ns from origin\" method: val=%d, %![iter-]+i",
*can_seek, iterator);
- goto end;
+ BT_LIB_LOGD(
+ "User's \"can seek nanoseconds from origin\" returned successfully: "
+ "%![iter-]+i, can-seek=%d",
+ iterator, *can_seek);
+
+ if (*can_seek) {
+ goto end;
+ }
}
/*
- * Automatic seeking fall back: if we can seek to the beginning,
- * then we can automatically seek to any message.
+ * Automatic seeking fall back: if we can seek to the beginning and the
+ * iterator supports forward seeking then we can automatically seek to
+ * any timestamp.
*/
status = (int) bt_self_component_port_input_message_iterator_can_seek_beginning(
iterator, can_seek);
+ if (status != BT_FUNC_STATUS_OK) {
+ goto end;
+ }
+
+ *can_seek = *can_seek && iterator->config.can_seek_forward;
end:
return status;
return status;
}
+bt_bool
+bt_self_component_port_input_message_iterator_can_seek_forward(
+ bt_self_component_port_input_message_iterator *iterator)
+{
+ BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
+
+ return iterator->config.can_seek_forward;
+}
+
/*
* Structure used to record the state of a given stream during the fast-forward
* phase of an auto-seek.
{
int status;
GHashTable *stream_states = NULL;
+ bt_bool can_seek_by_itself;
BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator");
BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator);
BT_GRAPH_CONFIGURATION_STATE_CONFIGURING,
"Graph is not configured: %!+g",
bt_component_borrow_graph(iterator->upstream_component));
+ /* The iterator must be able to seek ns from origin one way or another. */
BT_ASSERT_PRE(
message_iterator_can_seek_ns_from_origin(iterator, ns_from_origin),
"Message iterator cannot seek nanoseconds from origin: %!+i, "
*/
reset_iterator_expectations(iterator);
- if (iterator->methods.seek_ns_from_origin) {
+ /* Check if the iterator can seek by itself. If not we'll use autoseek. */
+ if (iterator->methods.can_seek_ns_from_origin) {
+ bt_component_class_message_iterator_can_seek_ns_from_origin_method_status
+ can_seek_status;
+
+ can_seek_status =
+ iterator->methods.can_seek_ns_from_origin(
+ iterator, ns_from_origin, &can_seek_by_itself);
+ if (can_seek_status != BT_FUNC_STATUS_OK) {
+ status = can_seek_status;
+ goto end;
+ }
+ } else {
+ can_seek_by_itself = false;
+ }
+
+ if (can_seek_by_itself) {
/* The iterator knows how to seek to a particular time, let it handle this. */
+ BT_ASSERT(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,
}
} else {
/*
- * The iterator doesn't know how to seek to a particular time. We will
- * seek to the beginning and fast forward to the right place.
+ * The iterator doesn't know how to seek by itself to a
+ * particular time. We will seek to the beginning and fast
+ * forward to the right place.
*/
enum bt_component_class_message_iterator_can_seek_beginning_method_status
can_seek_status;
projects / babeltrace.git / blobdiff