Function checkComputerUseLock

src/utils/computerUse/computerUseLock.ts:110–122

()

 * `request_access`. Does NOT create — that's `tryAcquireComputerUseLock`'s job.
 */
export async function checkComputerUseLock(): Promise<CheckResult> {
  const existing = await readLock()
  if (!existing) return { kind: 'free' }
  if (existing.sessionId === getSessionId()) return { kind: 'held_by_self' }
  if (isProcessRunning(existing.pid)) {
    return { kind: 'blocked', by: existing.sessionId }
  }
  logForDebugging(
    `Recovering stale computer-use lock from session ${existing.sessionId} (PID ${existing.pid})`,
  )
  await unlink(getLockPath()).catch(() => {})
  return { kind: 'free' }
}

/**
 * Zero-syscall check: does THIS process believe it holds the lock?