Function isProcessAlive

design/src/daemon-state.ts:142–152

(pid: number)

}

export function isProcessAlive(pid: number): boolean {
  if (!pid || pid <= 0) return false;
  try {
    process.kill(pid, 0);
    return true;
  } catch (e: unknown) {
    // EPERM means it exists, we just can't signal it. ESRCH means it's gone.
    const code = (e as NodeJS.ErrnoException | undefined)?.code;
    return code === "EPERM";
  }
}

/**
 * Read the cmdline of a running process. Returns "" on any error.