Method UnlockFile

src/leveldb/util/env_windows.cc:610–619

  }

  Status UnlockFile(FileLock* lock) override {
    WindowsFileLock* windows_file_lock =
        reinterpret_cast<WindowsFileLock*>(lock);
    if (!LockOrUnlock(windows_file_lock->handle().get(), false)) {
      return WindowsError("unlock " + windows_file_lock->filename(),
                          ::GetLastError());
    }
    delete windows_file_lock;
    return Status::OK();
  }

  void Schedule(void (*background_work_function)(void* background_work_arg),
                void* background_work_arg) override;