holoscan::ExternalTopicRecord

Beta

Describe one intrinsic external topic without transport/runtime state.

#include <holoscan/graph_records.hpp>

Member variables

Name	Type	Description
`id`	`ExternalTopicId`	Nonzero snapshot-local boundary identity.
`vertex`	`VertexId`	Intrinsic logical boundary vertex.
`graph_port`	`GraphPortId`	Stable Graph-owned boundary port identity.
`imported`	`bool`	True for external publisher to Graph; false for Graph export.
`uri`	`std::string`	Owned backend-neutral external topic URI.
`endpoint_name`	`std::optional< std::string >`	Owned explicit endpoint name when authored.
`generated_name_requested`	`bool`	True when later lowering must generate an endpoint name.
`declaration_ordinal`	`std::uint32_t`	Mixed import/export declaration attempt ordinal.
`payload_identity`	`PayloadIdentityRecord`	Complete pointer-free boundary identity.
`serialized_payload_capacity_bytes`	`std::uint64_t`	Positive schema serialized-byte bound.
`schema`	`std::optional< SchemaIdentityRecord >`	Effective owned topic schema when declared.
`memory_conversion`	`std::optional< MemoryConversionPolicy >`	Tensor-only conversion request.
`capture_time`	`std::optional< RequireCaptureTime >`	Required capture-time domain when authored.
`clock_health`	`ClockHealthOptions`	Normalized ordinary or monitored health contract.
`clock_health_authored`	`bool`	True when health options were explicitly supplied.
`attach`	`TopicAttachPolicy`	External peer presence and finite wait request.
`tensor`	`std::optional< TensorBoundaryContractRecord >`	Deep-owned Tensor contract.
`tensor_fields`	`std::vector< DescriptorTensorTopicFieldRecord >`	Complete descriptor-schema field inventory in canonical ascending field-id order.
`bounds`	`EndpointBounds`	Direction-specific external peer resource bounds.