Struct NemoRelayNativeHostApiV4 

#[repr(C)]
pub struct NemoRelayNativeHostApiV4 {

    pub v3: NemoRelayNativeHostApiV3,
    pub async_completion_llm_request_codec_decode: unsafe extern "C" fn(completion: *const NemoRelayNativeAsyncCompletion, request_json: *const NemoRelayNativeString, out: *mut *mut NemoRelayNativeString) -> NemoRelayStatus,
    pub async_completion_llm_request_codec_encode: unsafe extern "C" fn(completion: *const NemoRelayNativeAsyncCompletion, annotated_json: *const NemoRelayNativeString, original_json: *const NemoRelayNativeString, out: *mut *mut NemoRelayNativeString) -> NemoRelayStatus,
    pub async_completion_llm_response_codec_decode: unsafe extern "C" fn(completion: *const NemoRelayNativeAsyncCompletion, response_json: *const NemoRelayNativeString, out: *mut *mut NemoRelayNativeString) -> NemoRelayStatus,
    pub async_next_open_llm_stream: unsafe extern "C" fn(next: *const NemoRelayNativeAsyncNext, request_json: *const NemoRelayNativeString, cb: NemoRelayNativeAsyncLlmStreamOpenCb, user_data: *mut c_void) -> NemoRelayStatus,
    pub async_llm_stream_pull: unsafe extern "C" fn(stream: *const NemoRelayNativeLlmAsyncStream, cb: NemoRelayNativeAsyncLlmStreamPullCb, user_data: *mut c_void) -> NemoRelayStatus,
    pub async_llm_stream_cancel: unsafe extern "C" fn(stream: *const NemoRelayNativeLlmAsyncStream) -> NemoRelayStatus,
    pub async_llm_stream_release: unsafe extern "C" fn(stream: *const NemoRelayNativeLlmAsyncStream),
    pub async_completion_retain: unsafe extern "C" fn(completion: *const NemoRelayNativeAsyncCompletion) -> NemoRelayStatus,
    pub async_stream_is_backpressured: unsafe extern "C" fn(stream: *const NemoRelayNativeAsyncStream) -> bool,
    pub emit_mark_v2: NemoRelayNativeEmitMarkV2Fn,
    pub get_runtime_diagnostics: NemoRelayNativeGetRuntimeDiagnosticsFn,
    pub plugin_context_runtime: unsafe extern "C" fn(ctx: *mut NemoRelayNativePluginContext, out: *mut *const NemoRelayNativePluginRuntime) -> NemoRelayStatus,
    pub plugin_runtime_retain: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime) -> NemoRelayStatus,
    pub plugin_runtime_release: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime),
    pub plugin_runtime_list_registrations: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime, kinds_json: *const NemoRelayNativeString, out_json: *mut *mut NemoRelayNativeString) -> NemoRelayStatus,
    pub plugin_runtime_register_conditional_middleware_guardrail: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime, name: *const NemoRelayNativeString, kinds_json: *const NemoRelayNativeString, registration_name: *const NemoRelayNativeString, reason: *const NemoRelayNativeString, out_handle: *mut *mut NemoRelayNativeString) -> NemoRelayStatus,
    pub plugin_runtime_deregister_conditional_middleware_guardrail: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime, handle: *const NemoRelayNativeString, out_removed: *mut bool) -> NemoRelayStatus,
    pub plugin_context_register_conditional_middleware_guardrail: unsafe extern "C" fn(ctx: *mut NemoRelayNativePluginContext, name: *const NemoRelayNativeString, kinds_json: *const NemoRelayNativeString, registration_name: *const NemoRelayNativeString, reason: *const NemoRelayNativeString) -> NemoRelayStatus,
    pub plugin_runtime_register_conditional_middleware_guardrail_callback: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime, name: *const NemoRelayNativeString, kinds_json: *const NemoRelayNativeString, registration_name: *const NemoRelayNativeString, cb: NemoRelayNativeConditionalMiddlewareCb, user_data: *mut c_void, free_fn: NemoRelayNativeFreeFn, out_handle: *mut *mut NemoRelayNativeString) -> NemoRelayStatus,
    pub plugin_context_register_conditional_middleware_guardrail_callback: unsafe extern "C" fn(ctx: *mut NemoRelayNativePluginContext, name: *const NemoRelayNativeString, kinds_json: *const NemoRelayNativeString, registration_name: *const NemoRelayNativeString, cb: NemoRelayNativeConditionalMiddlewareCb, user_data: *mut c_void, free_fn: NemoRelayNativeFreeFn) -> NemoRelayStatus,
}

ABI-v4 host extension for typed asynchronous middleware, mark options, diagnostics, and activation-owned dynamic gate control.

The complete ABI-v3 table is the prefix, preserving layout compatibility.

Fields

v3: NemoRelayNativeHostApiV3

Frozen ABI-v3 compatibility prefix.

async_completion_llm_request_codec_decode: unsafe extern "C" fn(completion: *const NemoRelayNativeAsyncCompletion, request_json: *const NemoRelayNativeString, out: *mut *mut NemoRelayNativeString) -> NemoRelayStatus

Decodes an LLM request using the request codec attached to completion.

async_completion_llm_request_codec_encode: unsafe extern "C" fn(completion: *const NemoRelayNativeAsyncCompletion, annotated_json: *const NemoRelayNativeString, original_json: *const NemoRelayNativeString, out: *mut *mut NemoRelayNativeString) -> NemoRelayStatus

Encodes an annotated LLM request using the request codec attached to completion.

async_completion_llm_response_codec_decode: unsafe extern "C" fn(completion: *const NemoRelayNativeAsyncCompletion, response_json: *const NemoRelayNativeString, out: *mut *mut NemoRelayNativeString) -> NemoRelayStatus

Decodes an LLM response using the response codec attached to completion.

async_next_open_llm_stream: unsafe extern "C" fn(next: *const NemoRelayNativeAsyncNext, request_json: *const NemoRelayNativeString, cb: NemoRelayNativeAsyncLlmStreamOpenCb, user_data: *mut c_void) -> NemoRelayStatus

Opens an independent pull-based downstream LLM stream.

async_llm_stream_pull: unsafe extern "C" fn(stream: *const NemoRelayNativeLlmAsyncStream, cb: NemoRelayNativeAsyncLlmStreamPullCb, user_data: *mut c_void) -> NemoRelayStatus

Requests one item from a pull-based downstream LLM stream.

async_llm_stream_cancel: unsafe extern "C" fn(stream: *const NemoRelayNativeLlmAsyncStream) -> NemoRelayStatus

Cancels a pull-based downstream LLM stream.

async_llm_stream_release: unsafe extern "C" fn(stream: *const NemoRelayNativeLlmAsyncStream)

Releases the plugin-owned stream reference exactly once.

async_completion_retain: unsafe extern "C" fn(completion: *const NemoRelayNativeAsyncCompletion) -> NemoRelayStatus

Retains a completion capability for a codec facade that outlives the callback’s original completion reference.

async_stream_is_backpressured: unsafe extern "C" fn(stream: *const NemoRelayNativeAsyncStream) -> bool

Returns whether the output queue is currently full.

Use NemoRelayStatus::Backpressured from the individual push or rejection operation to decide whether that operation must be retried.

emit_mark_v2: NemoRelayNativeEmitMarkV2Fn

Emits a mark with optional data-schema and telemetry-severity fields.

get_runtime_diagnostics: NemoRelayNativeGetRuntimeDiagnosticsFn

Returns a bounded snapshot of active host runtime diagnostics.

plugin_context_runtime: unsafe extern "C" fn(ctx: *mut NemoRelayNativePluginContext, out: *mut *const NemoRelayNativePluginRuntime) -> NemoRelayStatus

Creates an activation-owned runtime capability from a registration context.

On success, out receives one owned reference. Every owned reference must be released exactly once with plugin_runtime_release.

plugin_runtime_retain: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime) -> NemoRelayStatus

Retains a runtime capability for a cloned SDK handle.

A successful call creates one additional owned reference.

plugin_runtime_release: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime)

Releases one owned runtime capability reference.

plugin_runtime_list_registrations: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime, kinds_json: *const NemoRelayNativeString, out_json: *mut *mut NemoRelayNativeString) -> NemoRelayStatus

Lists global runtime registrations as JSON.

plugin_runtime_register_conditional_middleware_guardrail: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime, name: *const NemoRelayNativeString, kinds_json: *const NemoRelayNativeString, registration_name: *const NemoRelayNativeString, reason: *const NemoRelayNativeString, out_handle: *mut *mut NemoRelayNativeString) -> NemoRelayStatus

Legacy constant-reason gate registration retained for v4 compatibility.

plugin_runtime_deregister_conditional_middleware_guardrail: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime, handle: *const NemoRelayNativeString, out_removed: *mut bool) -> NemoRelayStatus

Deregisters an activation-owned gate by opaque handle.

plugin_context_register_conditional_middleware_guardrail: unsafe extern "C" fn(ctx: *mut NemoRelayNativePluginContext, name: *const NemoRelayNativeString, kinds_json: *const NemoRelayNativeString, registration_name: *const NemoRelayNativeString, reason: *const NemoRelayNativeString) -> NemoRelayStatus

Legacy constant-reason component gate retained for v4 compatibility.

plugin_runtime_register_conditional_middleware_guardrail_callback: unsafe extern "C" fn(runtime: *const NemoRelayNativePluginRuntime, name: *const NemoRelayNativeString, kinds_json: *const NemoRelayNativeString, registration_name: *const NemoRelayNativeString, cb: NemoRelayNativeConditionalMiddlewareCb, user_data: *mut c_void, free_fn: NemoRelayNativeFreeFn, out_handle: *mut *mut NemoRelayNativeString) -> NemoRelayStatus

Registers an activation-owned callback gate and returns its handle.

Relay invokes cb synchronously and consumes user_data on every return path. A null callback reason leaves the target enabled.

plugin_context_register_conditional_middleware_guardrail_callback: unsafe extern "C" fn(ctx: *mut NemoRelayNativePluginContext, name: *const NemoRelayNativeString, kinds_json: *const NemoRelayNativeString, registration_name: *const NemoRelayNativeString, cb: NemoRelayNativeConditionalMiddlewareCb, user_data: *mut c_void, free_fn: NemoRelayNativeFreeFn) -> NemoRelayStatus

Declares a callback gate during component registration.

Relay invokes cb synchronously and consumes user_data on every return path. A null callback reason leaves the target enabled.

Trait Implementations

impl Clone for NemoRelayNativeHostApiV4

fn clone(&self) -> NemoRelayNativeHostApiV4

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for NemoRelayNativeHostApiV4

impl Send for NemoRelayNativeHostApiV4

impl Sync for NemoRelayNativeHostApiV4