Module types

Generated from cargo doc --no-deps -p nemo-relay -p nemo-relay-adaptive -p nemo-relay-pii-redaction -p nemo-relay-ffi -p nemo-relay-types -p nemo-relay-plugin -p nemo-relay-worker-proto -p nemo-relay-worker.

C-compatible types exposed through the FFI boundary.

This module defines opaque handle wrappers, enumerations, accessor functions, and free functions for all types that cross the C FFI boundary. Each opaque struct wraps a corresponding core type and is heap-allocated; the C consumer sees only an opaque pointer. All returned C strings must be freed with crate::convert::nemo_relay_string_free, and all handles must be freed with their corresponding nemo_relay_*_free function.

Structs

• FfiAdaptiveRuntime: Opaque owned adaptive runtime handle.
• FfiAtifExporter: Opaque ATIF exporter handle.
• FfiAtofExporter: Opaque ATOF JSONL exporter handle.
• FfiCodecHandle: Opaque handle carrying both request and response codec trait objects.
• FfiEvent: Opaque wrapper around a lifecycle event emitted by the runtime.
• FfiLLMHandle: Opaque handle representing an active LLM call.
• FfiLLMRequest: Opaque wrapper around an LLM request (headers, content).
• FfiLlmSanitizeRequestCodec: Borrowed, callback-scoped request codec capability supplied to an LLM sanitizer.
• FfiLlmSanitizeResponseCodec: Borrowed, callback-scoped response codec capability supplied to an LLM sanitizer.
• FfiOpenTelemetryLogSubscriber: Opaque OpenTelemetry log subscriber handle.
• FfiOpenTelemetryMetricSubscriber: Opaque OpenTelemetry metric subscriber handle.
• FfiOpenTelemetrySubscriber: Opaque OpenTelemetry subscriber handle.
• FfiPluginActivation: Opaque owned dynamic plugin host activation.
• FfiPluginContext: Opaque plugin registration context.
• FfiScopeHandle: Opaque handle representing an active execution scope.
• FfiScopeStack: Opaque handle to an isolated scope stack for per-request/per-task isolation.
• FfiThreadScopeStackBinding: Opaque handle to a captured thread-local scope stack binding.
• FfiToolHandle: Opaque handle representing an active tool call.
• NemoRelayMetricMeasurement: C representation of one typed metric SDK recording operation.

Enums

• NemoRelayScopeType: The type of scope in the agent execution hierarchy.

Constants

• NEMO_RELAY_LOG_SEVERITY_DEBUG: Diagnostic information.
• NEMO_RELAY_LOG_SEVERITY_ERROR: Error condition.
• NEMO_RELAY_LOG_SEVERITY_INFO: Normal informational event.
• NEMO_RELAY_LOG_SEVERITY_TRACE: Fine-grained tracing information.
• NEMO_RELAY_LOG_SEVERITY_WARN: Warning condition.
• NEMO_RELAY_METRIC_KIND_COUNTER: Monotonic additive counter.
• NEMO_RELAY_METRIC_KIND_GAUGE: Current sampled value.
• NEMO_RELAY_METRIC_KIND_HISTOGRAM: Distribution sample.
• NEMO_RELAY_METRIC_KIND_UNSPECIFIED: Unspecified metric kind. This value is invalid for a measurement.
• NEMO_RELAY_METRIC_KIND_UP_DOWN_COUNTER: Additive counter that may increase or decrease.
• NEMO_RELAY_METRIC_VALUE_TYPE_F64: Read f64_value.
• NEMO_RELAY_METRIC_VALUE_TYPE_I64: Read i64_value.
• NEMO_RELAY_METRIC_VALUE_TYPE_U64: Read u64_value.
• NEMO_RELAY_METRIC_VALUE_TYPE_UNSPECIFIED: Unspecified metric value type. This value is invalid for a measurement.

Functions

• nemo_relay_adaptive_runtime_free: Free an adaptive runtime handle previously returned by nemo_relay_adaptive_runtime_create.
• nemo_relay_atif_exporter_free: Free an ATIF exporter handle previously returned by nemo_relay_atif_exporter_create.
• nemo_relay_atof_exporter_free: Free an ATOF JSONL exporter handle previously returned by nemo_relay_atof_exporter_create.
• nemo_relay_codec_free: Free a codec handle previously returned by one of the codec constructor functions (nemo_relay_openai_chat_codec_new, etc.).
• nemo_relay_event_annotated_request: Return the annotated request from an LLM start event as a JSON C string, or null if not available (non-LLM events, or no codec was active). Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_annotated_response: Return the annotated response from an LLM end event as a JSON C string, or null if not available (non-LLM events, or no response codec was active). Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_atof_version: Return the ATOF version as a C string.
• nemo_relay_event_attributes: Return the raw attribute bitfield for an event, or 0 if it has none.
• nemo_relay_event_attributes_json: Return ATOF attributes as a JSON string array.
• nemo_relay_event_category: Return the ATOF category as a C string, or null if absent.
• nemo_relay_event_category_profile: Return the ATOF category profile as a JSON C string, or null if absent.
• nemo_relay_event_data: Return the event data as a JSON C string, or null if no data is set. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_data_schema: Return the Agent Trajectory Observability Format (ATOF) data schema as a JSON C string, or null if absent.
• nemo_relay_event_free: Free an event object.
• nemo_relay_event_input: Return the event input as a JSON C string, or null if no input is set. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_json: Return the canonical subscriber event JSON as a C string. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_kind: Return the event discriminator as a C string. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_metadata: Return the event metadata as a JSON C string, or null if no metadata is set. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_model_name: Return the event model name as a C string, or null if no model name is set. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_name: Return the name of an event as a C string, or null if unnamed. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_output: Return the event output as a JSON C string, or null if no output is set. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_parent_uuid: Return the event parent UUID as a C string, or null if no parent UUID is set. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_scope_category: Return the ATOF scope category as a C string, or null for mark events.
• nemo_relay_event_scope_type: Return the event scope type as a C string, or null if no scope type is set. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_timestamp: Return the event timestamp as an RFC 3339 C string. Caller must free the result.
• nemo_relay_event_tool_call_id: Return the event tool call ID as a C string, or null if no tool call ID is set. Caller must free the result with nemo_relay_string_free.
• nemo_relay_event_uuid: Return the UUID of an event as a C string. Caller must free the result.
• nemo_relay_llm_handle_attributes: Return the bitfield attributes of an LLM handle. Returns 0 if ptr is null.
• nemo_relay_llm_handle_free: Free an LLM handle previously returned by the runtime.
• nemo_relay_llm_handle_name: Return the name of an LLM handle as a C string. Caller must free the result.
• nemo_relay_llm_handle_parent_uuid: Return the parent scope UUID of an LLM handle, or null if none. Caller must free the result with nemo_relay_string_free.
• nemo_relay_llm_handle_uuid: Return the UUID of an LLM handle as a C string. Caller must free the result.
• nemo_relay_llm_request_content: Return the content of an LLM request as a JSON C string. Caller must free the result.
• nemo_relay_llm_request_free: Free an LLM request object.
• nemo_relay_llm_request_headers: Return the headers of an LLM request as a JSON C string. Caller must free the result.
• nemo_relay_llm_request_new: Create a new LLM request object. Returns a heap-allocated FfiLLMRequest that must be freed with nemo_relay_llm_request_free. Returns null on invalid input.
• nemo_relay_otel_log_subscriber_free: Free an OpenTelemetry log subscriber handle.
• nemo_relay_otel_metric_subscriber_free: Free an OpenTelemetry metric subscriber handle.
• nemo_relay_otel_subscriber_free: Free an OpenTelemetry subscriber handle previously returned by nemo_relay_otel_subscriber_create.
• nemo_relay_plugin_activation_free: Free a dynamic plugin activation handle previously returned by nemo_relay_initialize_with_dynamic_plugins.
• nemo_relay_scope_handle_attributes: Return the bitfield attributes of a scope handle. Returns 0 if ptr is null.
• nemo_relay_scope_handle_data: Return the scope data as a JSON C string, or null if no data is set. Caller must free the result with nemo_relay_string_free.
• nemo_relay_scope_handle_free: Free a scope handle previously returned by the runtime.
• nemo_relay_scope_handle_metadata: Return the scope metadata as a JSON C string, or null if no metadata is set. Caller must free the result with nemo_relay_string_free.
• nemo_relay_scope_handle_name: Return the name of a scope handle as a C string. Caller must free the result. Returns null if ptr is null.
• nemo_relay_scope_handle_parent_uuid: Return the parent scope UUID as a C string, or null if there is no parent. Caller must free the result with nemo_relay_string_free.
• nemo_relay_scope_handle_scope_type: Return the scope type of a scope handle. Returns Unknown if ptr is null.
• nemo_relay_scope_handle_uuid: Return the UUID of a scope handle as a C string. Caller must free the result with nemo_relay_string_free. Returns null if ptr is null.
• nemo_relay_scope_stack_free: Free a scope stack handle previously returned by nemo_relay_scope_stack_create.
• nemo_relay_tool_handle_attributes: Return the bitfield attributes of a tool handle. Returns 0 if ptr is null.
• nemo_relay_tool_handle_free: Free a tool handle previously returned by the runtime.
• nemo_relay_tool_handle_name: Return the name of a tool handle as a C string. Caller must free the result.
• nemo_relay_tool_handle_parent_uuid: Return the parent scope UUID of a tool handle, or null if none. Caller must free the result with nemo_relay_string_free.
• nemo_relay_tool_handle_uuid: Return the UUID of a tool handle as a C string. Caller must free the result.

Type Aliases

• NemoRelayLogSeverity: Integer-backed typed severity for a mark exported as an OpenTelemetry log.
• NemoRelayMetricKind: Integer-backed OpenTelemetry instrument kind for one typed metric measurement.
• NemoRelayMetricValueType: Integer-backed numeric representation selected from a typed metric measurement’s value fields.