2 Core Abstractions

Core Abstractions

Traits and factory that separate application code from concrete transports. Sources: src/trait_def.rs, src/error.rs. Tip alignment: 08d2f28 / #55.

Traits

1. IpcBackend — synchronous float-vector lifecycle (initialize, process_batch, save_state, get_spike_states, reset). Deprecated alias: RuntimeBackend.
2. HybridFlowBackend — optional structured messaging (send_spikes, send_embeddings, try_receive_gradients, try_receive_traces).

Implementations (current code)

flowchart TD
  Ipc["IpcBackend"] --> Rust["RustBackend"]
  Ipc --> ZmqRO["ZmqIpcBackend binary readout"]
  Hyb["HybridFlowBackend"] --> ZmqHyb["ZmqHybridFlowBackend"]
  ZmqHyb --> Pub["ZmqMessagePublisher"]
  ZmqHyb --> Sub["ZmqMessageSubscriber"]

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ZmqIpcBackend implements only IpcBackend. ZmqHybridFlowBackend implements only HybridFlowBackend. They do not share framing.

Child pages

• 2.1 IpcBackend Trait
• 2.2 HybridFlowBackend Trait
• 2.3 BackendFactory and BackendType
• 2.4 Error Handling — includes BackendError::Protocol
• 3.4 Structured ZeroMQ IpcMessage Transport