// Copyright 2020 Google LLC // // 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 // // https://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. #ifndef PLATFORM_API_CANCELABLE_H_ #define PLATFORM_API_CANCELABLE_H_ namespace location { namespace nearby { namespace api { // An interface to provide a cancellation mechanism for objects that represent // long-running operations. class Cancelable { public: virtual ~Cancelable() = default; virtual bool Cancel() = 0; }; } // namespace api } // namespace nearby } // namespace location #endif // PLATFORM_API_CANCELABLE_H_