registration.hpp

#pragma once

#include <functional>
#include <map>
#include <string>
#include <iostream>

namespace openpower
{
namespace util
{

using ProcedureName = std::string;
using ProcedureFunction = std::function<void()>;
using ProcedureMap = std::map<ProcedureName, ProcedureFunction>;

/**
 * This macro can be used in each procedure cpp file to make it
 * available to the openpower-proc-control executable.
 */
#define REGISTER_PROCEDURE(name, func) \
  namespace func##_ns \
  { \
    openpower::util::Registration r{ \
        std::move(name), std::move(func)}; \
  }


/**
 * Used to register procedures.  Each procedure function can then
 * be found in a map via its name.
 */
class Registration
{
    public:

        /**
         *  Adds the procedure name and function to the internal
         *  procedure map.
         *
         *  @param[in] name - the procedure name
         *  @param[in] function - the function to run
         */
        Registration(ProcedureName&& name,
                     ProcedureFunction&& function)
        {
            procedures.emplace(std::move(name), std::move(function));
        }

        /**
         * Returns the map of procedures
         */
        static const ProcedureMap& getProcedures()
        {
            return procedures;
        }

    private:

        static ProcedureMap procedures;
};

}
}