root/misc/swig/callback/callback.h

INCLUDED FROM

// Copyright 2011 The Go Authors.  All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

class Callback {
public:
        virtual ~Callback() { }
        virtual std::string run() { return "Callback::run"; }
};

class Caller {
private:
        Callback *callback_;
public:
        Caller(): callback_(0) { }
        ~Caller() { delCallback(); }
        void delCallback() { delete callback_; callback_ = 0; }
        void setCallback(Callback *cb) { delCallback(); callback_ = cb; }
        std::string call();
};