1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_FUNCTOR_H 18 #define ANDROID_FUNCTOR_H 19 20 #include <utils/Errors.h> 21 22 namespace android { 23 24 // DO NOT USE: please use 25 // - C++ lambda 26 // - class with well-defined and specific functionality and semantics 27 28 class Functor { 29 public: Functor()30 Functor() {} ~Functor()31 virtual ~Functor() {} operator()32 virtual status_t operator()(int /*what*/, void* /*data*/) { return OK; } 33 }; 34 35 } // namespace android 36 37 #endif // ANDROID_FUNCTOR_H 38