cxx_config.hh

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/*
 * Copyright (c) 2014 ARM Limited
 * All rights reserved
 *
 * The license below extends only to copyright in the software and shall
 * not be construed as granting a license to any other intellectual
 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
 * licensed hereunder.  You may use the software subject to the license
 * terms below provided that you ensure that this notice is replicated
 * unmodified and in its entirety in all distributions of the software,
 * modified or unmodified, in source code or in binary form.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
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 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
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 */
 
#ifndef __SIM_CXX_CONFIG_HH__
#define __SIM_CXX_CONFIG_HH__
 
#include <map>
#include <string>
#include <vector>
 
#include "sim/sim_object.hh"
 
namespace gem5
{
 
class CxxConfigParams;
 
class CxxConfigDirectoryEntry
{
  public:
    /* Class to represent parameters and SimObject references within
     *  SimObjects */
    class ParamDesc
    {
      public:
        const std::string name;
 
        /* Is this a vector or singleton parameters/SimObject */
        const bool isVector;
 
        const bool isSimObject;
 
        ParamDesc(const std::string &name_,
            bool isVector_, bool isSimObject_) :
            name(name_), isVector(isVector_), isSimObject(isSimObject_)
        { }
    };
 
    class PortDesc
    {
      public:
        const std::string name;
 
        /* Is this a vector or singleton parameters/SimObject */
        const bool isVector;
 
        const bool isRequestor;
 
        PortDesc(const std::string &name_,
            bool isVector_, bool isRequestor_) :
            name(name_), isVector(isVector_), isRequestor(isRequestor_)
        { }
    };
 
    std::map<std::string, ParamDesc *> parameters;
 
    std::map<std::string, PortDesc *> ports;
 
    virtual CxxConfigParams *makeParamsObject() const { return NULL; }
 
    virtual ~CxxConfigDirectoryEntry() { }
};
 
std::map<std::string, CxxConfigDirectoryEntry *> &cxxConfigDirectory();
 
class CxxConfigParams
{
  private:
    static const std::string invalidName;
 
  protected:
    struct AddToConfigDir
    {
        AddToConfigDir(const std::string &name, CxxConfigDirectoryEntry *entry)
        {
            auto it_success = cxxConfigDirectory().insert({name, entry});
            panic_if(!it_success.second,
                    "Failed to insert config directory entry %s (duplicate?).",
                    name);
        }
    };
 
  public:
    typedef uint32_t FlagsType;
    typedef gem5::Flags<FlagsType> Flags;
 
    /* static const FlagsType MY_NEW_FLAG = 0x00000001; */
 
  public:
    virtual void setName(const std::string &name_) { }
 
    virtual const std::string &getName() { return invalidName; }
 
    virtual bool setSimObject(const std::string &name,
        SimObject *simObject)
    { return false; }
 
    virtual bool setSimObjectVector(const std::string &name,
        const std::vector<SimObject *> &simObjects)
    { return false; }
 
    virtual bool setParam(const std::string &name,
        const std::string &value, const Flags flags)
    { return false; }
 
    virtual bool setParamVector(const std::string &name,
        const std::vector<std::string> &values, const Flags flags)
    { return false; }
 
    virtual bool setPortConnectionCount(const std::string &name,
        unsigned int count)
    { return false; }
 
    virtual SimObject *simObjectCreate() { return NULL; }
 
    CxxConfigParams() { }
 
    virtual ~CxxConfigParams() { }
};
 
class CxxConfigFileBase
{
  public:
    CxxConfigFileBase() { }
    virtual ~CxxConfigFileBase() { }
 
    virtual bool getParam(const std::string &object_name,
        const std::string &param_name,
        std::string &value) const = 0;
 
    virtual bool getParamVector(const std::string &object_name,
        const std::string &param_name,
        std::vector<std::string> &values) const = 0;
 
    virtual bool getPortPeers(const std::string &object_name,
        const std::string &port_name,
        std::vector<std::string> &peers) const = 0;
 
    virtual bool objectExists(const std::string &object_name) const = 0;
 
    virtual void getAllObjectNames(std::vector<std::string> &list) const = 0;
 
    virtual void getObjectChildren(const std::string &object_name,
        std::vector<std::string> &children,
        bool return_paths = false) const = 0;
 
    virtual bool load(const std::string &filename) = 0;
 
    virtual CxxConfigParams::Flags getFlags() const { return 0; }
};
 
} // namespace gem5
 
#endif // __SIM_CXX_CONFIG_HH__