#trkbt10/subprocess

#Features

• exec — Run a shell command (/bin/sh -c), collect stdout/stderr
• exec_file — Run an executable directly, collect stdout/stderr
• spawn / spawn_shell — Spawn a process with streaming stdin/stdout/stderr pipes
• managed/ProcessManager — Track all spawned processes, reap completed ones, graceful shutdown
• ipc/socket — IPC socket server/client (AF_UNIX) with length-prefixed message framing
• ipc/IpcChannel — Unified channel abstraction over sockets and pipes

#Quick Start

// Shell command execution
let result = @subprocess.exec("ls -la")
println(result.stdout)

// Direct file execution
let result = @subprocess.exec_file("git", args=["status"])
println(result.stdout)

// Spawn with streaming I/O
@async.with_task_group(async fn(group) {
  let child = @subprocess.spawn(group, "cat", pipe_stdin=true, pipe_stdout=true)
  child.stdin.unwrap().write("hello")
  child.stdin.unwrap().close()
  let output = child.stdout.unwrap().read_all()
  println(output.text())
  let _ = child.wait()
  group.return_immediately(())
})

// Managed process pool (zombie prevention)
let pm = @managed.ProcessManager::new()
let r = pm.exec("echo hello")
pm.shutdown()  // cancels all, waits, no zombies

// IPC socket
let server = @socket.Server::new("/tmp/my_app.sock")
let client = @socket.Connection::connect("/tmp/my_app.sock")
let conn = server.accept()
client.send("hello")          // length-prefixed message
let msg = conn.recv()         // => Some("hello")
client.close()
conn.close()
server.close()

#API Reference

#trkbt10/subprocess

#trkbt10/subprocess/managed

#trkbt10/subprocess/ipc/socket

#trkbt10/subprocess/ipc

#Requirements

• Native target only (--target native)
• subprocess / managed: Unix/macOS (uses /bin/sh)
• ipc/socket: Unix/macOS/Windows 10 Build 17063+ (AF_UNIX)
  • peer_pid() は macOS (LOCAL_PEERPID) と Linux (SO_PEERCRED) のみ対応