| // Copyright (C) 2019 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #pragma once |
| |
| #include <chrono> |
| #include <string> |
| |
| namespace android { |
| namespace fs_mgr { |
| |
| // Wait at most |relative_timeout| milliseconds for |path| to exist. dirname(path) |
| // must already exist. For example, to wait on /dev/block/dm-6, /dev/block must |
| // be a valid directory. |
| // |
| // If relative_timeout is std::chrono::milliseconds::max(), then the wait will |
| // block indefinitely. |
| bool WaitForFile(const std::string& path, const std::chrono::milliseconds relative_timeout); |
| |
| // Wait at most |relative_timeout| milliseconds for |path| to stop existing. |
| // Note that this only returns true if the inode itself no longer exists, i.e., |
| // all outstanding file descriptors have been closed. |
| bool WaitForFileDeleted(const std::string& path, const std::chrono::milliseconds relative_timeout); |
| |
| } // namespace fs_mgr |
| } // namespace android |
