libutils/include/utils/Functor.h

/*
 * Copyright (C) 2011 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.
 */

#ifndef ANDROID_FUNCTOR_H
#define ANDROID_FUNCTOR_H

#include <utils/Errors.h>

namespace  android {

// DO NOT USE: please use
// - C++ lambda
// - class with well-defined and specific functionality and semantics

class Functor {
public:
    Functor() {}
    virtual ~Functor() {}
    virtual status_t operator ()(int /*what*/, void* /*data*/) { return NO_ERROR; }
};

}  // namespace android

#endif // ANDROID_FUNCTOR_H