TCP

Purpose

A raw TCP listener that accepts every connection, reads anything the client sends, and emits an event per chunk. Useful for confirming out-of-band TCP reach-out from an application under test where the client doesn’t speak a recognised application protocol.

Behaviour

• Listens on tcp4 at the configured listener address.
• One Connect event per accepted connection.
• One DataRecv event per read() call from the client, carrying the bytes that were actually read in RawData (Data()). Chunks are copied before dispatch — slices are safe to retain across the channel.
• One Disconnect event when the read loop exits (EOF, peer reset, read error, or Stop()).
• The handler never writes back to the client.

Configuration

Events

Operational notes

• The accept loop returns from Start() cleanly when Stop() closes the listener. In-flight handleConn goroutines drain naturally as their peers close.
• Stop(ctx) ignores the context’s deadline — closing the listener is immediate.