1 // Copyright (C) 2019 The Android Open Source Project
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 //      http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #pragma once
16 
17 #include <chrono>
18 #include <functional>
19 
20 namespace android {
21 namespace dm {
22 
23 enum class WaitResult { Wait, Done, Fail };
24 
25 bool WaitForFile(const std::string& path, const std::chrono::milliseconds& timeout_ms);
26 bool WaitForFileDeleted(const std::string& path, const std::chrono::milliseconds& timeout_ms);
27 bool WaitForCondition(const std::function<WaitResult()>& condition,
28                       const std::chrono::milliseconds& timeout_ms);
29 
30 }  // namespace dm
31 }  // namespace android
32