Release lock automatically when callback returns?

[eight04]

Currently, if the callback use the release function, the lock is only released when release is called.

await lock.read(async () => {
  // do something
  return; // this lock will be released
})

await lock.read(async (release) => {
  // do something 
  if (foo) {
    // do something
    release();
  }
  // do something
  return; // this lock will NOT be released when foo === false
})

Should we always release the lock when callback returns/throw? but then we can't keep the lock after the function returns.

Or, we always release the lock when the callback is async?