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