Module process 

Process spawning and lifecycle management for Lambda simulation.

This module provides utilities for spawning and managing runtime and extension processes within the Lambda simulator. It handles:

• Automatic injection of Lambda environment variables
• PID registration for freeze/thaw simulation
• RAII-based cleanup on drop
• Stdio inheritance for demos and debugging

Example

use lambda_simulator::{Simulator, FreezeMode};
use lambda_simulator::process::ProcessRole;

let simulator = Simulator::builder()
    .freeze_mode(FreezeMode::Process)
    .build()
    .await?;

// Spawn a runtime - PID automatically registered for freeze/thaw
// In tests, use env!("CARGO_BIN_EXE_<name>") for binary path resolution
let runtime = simulator.spawn_process(
    "/path/to/my_runtime",
    ProcessRole::Runtime,
)?;

// Spawn an extension
let extension = simulator.spawn_process(
    "/path/to/my_extension",
    ProcessRole::Extension,
)?;

// Processes are automatically cleaned up when dropped

Structs

ManagedProcess

A managed child process with automatic cleanup on drop.

ProcessConfig

Configuration for spawning a managed process.

Enums

ProcessError

Error type for process spawning operations.

ProcessRole

The role of a spawned process in the Lambda environment.