Actors in Go: How lockstep Runs One Actor in Your Program and in Tests

说明与用途

文章展示了如何使用 lockstep 在 Go 中实现演员模型：类型化消息、受限邮箱、非阻塞效果和确定性测试。

问题

Implementing actor semantics in Go without a dedicated runtime, managing state, bounded mailboxes, and non-blocking I/O.

结果

The shop actor correctly reserves stock before charging, uses lockstep.Do for non-blocking I/O, and runs deterministically in tests.

工作流

• Define message types and actor struct
• Implement Receive to handle Buy, charged, and Sold messages
• Use lockstep.Spawn to create actor and obtain typed PID
• Send Buy messages to actor; lockstep.Do starts Charge effect
• Handle charged result in a later turn
• Reply with Sold message via ReplyTo
• Run same code under go test with deterministic seed

证据

lockstep runs them in your program on a pool of worker goroutines.

来源

The same actor code also runs in go test, in a simulation with its own clock and network.

来源

lockstep.Do starts an effect and returns at once.

来源