Module transport 

Transport layer abstraction for CLI communication.

This module defines the Transport trait, which abstracts the communication channel between the SDK and the Claude Code CLI process. The default implementation is SubprocessCliTransport, which spawns the CLI as a child process and communicates via stdin/stdout.

Custom transports can be implemented for testing or alternative communication mechanisms by implementing the Transport trait.

Split I/O

For concurrent read/write scenarios, the transport can be split into independent reader and writer halves via Transport::into_split(). Implementations can use split_with_adapter() for a simple lock-based fallback via SplitAdapter.

Modules

subprocess_cli

Subprocess-based transport for the Claude Code CLI.

Structs

SplitAdapter

Lock-based split adapter for backward-compatible transport splitting.

SplitAdapterReader

Reader half of a SplitAdapter.

SplitAdapterWriter

Writer half of a SplitAdapter.

Traits

Transport

Async transport trait for bidirectional communication with the Claude Code CLI.

TransportCloseHandle

Handle for closing a transport after it has been split.

TransportFactory

Factory for creating fresh Transport instances.

TransportReader

Async reader half of a split transport.

TransportWriter

Async writer half of a split transport.

Functions

split_with_adapter

Splits a transport using a lock-based adapter.

Type Aliases

TransportSplitResult

The result of splitting a transport into independent reader, writer, and close handle.