Crate sim_lib_stream_host 

Host-device stream backend substrate.

The crate currently implements the selected RTP-MIDI subset without opening sockets or platform devices during normal validation. Host callbacks only receive a cloneable bounded queue handle and may enqueue packets through non-blocking calls. Device smoke tests are ignored by default; run them manually only when a matching external peer or platform device is available.

Structs

AudioDeviceCard

Export-record-style descriptor for an audio device.

AudioPlacementRequest

Caller-side request to place an audio graph on a registered audio site.

AudioProviderEntries

FFI-free table of provider entry points keyed by provider library id.

AudioProviderHost

Host that loads audio providers through the kernel loader and registers sites.

AudioRouter

Registry and dispatcher for audio placement sites.

AudioSiteKey

Stable runtime key for an audio evaluation site.

DeviceCatalog

Registry of stream-device providers.

DeviceRecord

Catalog row for a host-visible stream device.

FakeBackend

Host-independent backend that opens push streams without hardware.

HostBackendInfo

Stable metadata describing a host backend.

HostBackendRegistry

Deterministic registry of host stream backends.

HostCallbackCassette

Deterministic recording of host callback items.

HostCallbackQueue

Cloneable handle host callbacks use to enqueue packets into a stream.

HostClockInfo

Clock metadata for an opened host stream.

HostDeviceInventory

Devices and ports reported by a backend enumeration.

HostDeviceSpec

Specification of an enumerated host device.

HostLatencyInfo

Latency estimate for an opened host stream.

HostOpenPlan

Resolved plan describing how a device would be opened.

HostOpenStream

Open stream plus host-side callback queue.

HostPortSpec

Addressable host port owned by an enumerated device.

HostReconnectPolicy

Reconnect behavior accepted by a host backend.

HostStreamConfig

Accepted stream configuration returned by a host backend.

HostStreamConfigRequest

Request supplied to a host backend when opening a stream.

LanPlacementReport

Outcome of planning a LAN fragment placement.

LanPlacementRequest

Request to place a stream fragment on a LAN peer under a chosen mode.

MidiLiveEvalSite

Live MIDI evaluation site opened from a cataloged device record.

ModeledAudioProvider

Deterministic audio provider used by default validation.

ModeledAudioSite

Modeled audio site backed by an existing host backend.

ModeledMidiProvider

Deterministic MIDI provider used by default validation.

ProcessRingSnapshot

Capacity snapshot for steady-state process-site checks.

ProcessSharedRing

Preallocated bounded ring used at process-site stream boundaries.

RouterAudioProviderRegistrar

Registrar that wires provider sites into an AudioRouter.

RtpMidiBackend

Host backend implementing the selected RTP-MIDI input subset.

RtpMidiPort

An opened RTP-MIDI source port and its callback queue.

Enums

DeviceDirection

Direction supported by a cataloged stream device.

DeviceKind

Stream-device media family surfaced by the shared device catalog.

HostBackendCapability

Capability advertised by a host backend.

HostDirection

Direction of a host stream relative to the device.

LanPlacementMode

Placement mode for a stream fragment hosted on a LAN peer.

Placement

Placement tier for a host-visible stream device.

ProcessRingPush

Push result for the bounded process-site ring.

Constants

AUDIO_PROVIDER_ABI_VERSION

ABI version currently accepted by the host-side audio provider registrar.

AUDIO_PROVIDER_ENTRY_V1

Stable entry symbol exported by a loadable audio provider.

Traits

AudioProviderRegistrar

Host-supplied registration surface for loadable audio providers.

AudioSite

Runtime-openable audio placement target.

DeviceProvider

Provider of cataloged stream devices.

HostBackend

Backend contract for host-controlled stream devices.

HostStreamDriver

Native or external stream resource attached to an opened host stream.

StreamEvalSite

Open stream site returned by a device catalog.

Functions

audio_device_export_symbol

Stable export symbol for an audio device owned by a loaded lib.

fake_backend_symbol

Stable fake backend id.

lan_bar_delay_mode_symbol

Stable mode name for musically aligned bar-delay collaboration.

lan_experimental_remote_sample_capability

Capability required to try pinned sample-domain placement across LAN.

lan_jitter_buffered_mode_symbol

Stable mode name for jitter-buffered LAN placement.

lan_peer_site_symbol

Stable site name for a non-real-time node hosted by a LAN peer.

lan_pinned_sample_experimental_diagnostic

Diagnostic emitted when experimental pinned sample-domain LAN placement is used.

lan_pinned_sample_refusal_diagnostic

Diagnostic emitted when a pinned sample-domain node is refused across LAN.

missing_capability_card_expr

Emits a browse card for a missing backend capability.

native_audio_provider_capability

Capability required before a native audio provider can be loaded.

rtp_midi_backend_symbol

Returns the stable symbol identifying the RTP-MIDI backend.

stream_host_capability

Returns the capability name gating host stream device access.

Type Aliases

AudioProviderEntry

Host-callable audio provider entry point.