scope_helper.h

Go to the documentation of this file.

#ifndef OOKII_SCOPE_HELPER_H_
#define OOKII_SCOPE_HELPER_H_
 
#include <functional>
 
namespace ookii::details
{
    class scope_exit
    {
    public:
        scope_exit() = default;
 
        scope_exit(std::function<void()> callback)
            : _callback{callback}
        {
        }
 
        scope_exit(scope_exit &) = delete;
        scope_exit &operator=(scope_exit &) = delete;
 
        ~scope_exit()
        {
            reset();
        }
 
        void reset(std::function<void()> callback = {})
        {
            if (_callback)
            {
                _callback();
            }
 
            _callback = callback;
        }
 
        void release()
        {
            _callback = {};
        }
 
    private:
        std::function<void()> _callback;
    };
}
 
#endif