type-id.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2008 INRIA
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
 */
#ifndef TYPE_ID_H
#define TYPE_ID_H
 
#include "attribute.h"
#include "attribute-accessor-helper.h"
#include "trace-source-accessor.h"
#include "attribute-helper.h"
#include "callback.h"
#include "deprecated.h"
#include "hash.h"
#include <string>
#include <stdint.h>
 
namespace ns3 {
 
class ObjectBase;
 
class TypeId
{
public:
  enum AttributeFlag
  {
    ATTR_GET = 1 << 0, 
    ATTR_SET = 1 << 1, 
    ATTR_CONSTRUCT = 1 << 2, 
    ATTR_SGC = ATTR_GET | ATTR_SET | ATTR_CONSTRUCT, 
  };
  enum SupportLevel
  {
    SUPPORTED,   
    DEPRECATED,  
    OBSOLETE     
  };
  struct AttributeInformation
  {
    std::string name;
    std::string help;
    uint32_t flags;
    Ptr<const AttributeValue> originalInitialValue;
    Ptr<const AttributeValue> initialValue;
    Ptr<const AttributeAccessor> accessor;
    Ptr<const AttributeChecker> checker;
    TypeId::SupportLevel supportLevel;
    std::string supportMsg;
  };
  struct TraceSourceInformation
  {
    std::string name;
    std::string help;
    std::string callback;
    Ptr<const TraceSourceAccessor> accessor;
    TypeId::SupportLevel supportLevel;
    std::string supportMsg;
  };
 
  typedef uint32_t hash_t;
 
  static TypeId LookupByName (std::string name);
  static bool LookupByNameFailSafe (std::string name, TypeId *tid);
  static TypeId LookupByHash (hash_t hash);
  static bool LookupByHashFailSafe (hash_t hash, TypeId *tid);
 
  static uint16_t GetRegisteredN (void);
  static TypeId GetRegistered (uint16_t i);
 
  explicit TypeId (const char * name);
 
  TypeId GetParent (void) const;
 
  bool HasParent (void) const;
 
  bool IsChildOf (TypeId other) const;
 
  std::string GetGroupName (void) const;
 
  std::string GetName (void) const;
 
  hash_t GetHash (void) const;
 
  std::size_t GetSize (void) const;
 
  bool HasConstructor (void) const;
 
  std::size_t GetAttributeN (void) const;
  struct TypeId::AttributeInformation GetAttribute (std::size_t i) const;
  std::string GetAttributeFullName (std::size_t i) const;
 
  Callback<ObjectBase *> GetConstructor (void) const;
 
  bool MustHideFromDocumentation (void) const;
 
 
  std::size_t GetTraceSourceN (void) const;
  struct TypeId::TraceSourceInformation GetTraceSource (std::size_t i) const;
 
  TypeId SetParent (TypeId tid);
  template <typename T>
  TypeId SetParent (void);
 
  TypeId SetGroupName (std::string groupName);
 
  TypeId SetSize (std::size_t size);
 
  template <typename T>
  TypeId AddConstructor (void);
 
  TypeId AddAttribute (std::string name,
                       std::string help,
                       const AttributeValue &initialValue,
                       Ptr<const AttributeAccessor> accessor,
                       Ptr<const AttributeChecker> checker,
                       SupportLevel supportLevel = SUPPORTED,
                       const std::string &supportMsg = "");
 
  bool SetAttributeInitialValue (std::size_t i,
                                 Ptr<const AttributeValue> initialValue);
 
  TypeId AddAttribute (std::string name,
                       std::string help,
                       uint32_t flags,
                       const AttributeValue &initialValue,
                       Ptr<const AttributeAccessor> accessor,
                       Ptr<const AttributeChecker> checker,
                       SupportLevel supportLevel = SUPPORTED,
                       const std::string &supportMsg = "");
 
  TypeId AddTraceSource (std::string name,
                         std::string help,
                         Ptr<const TraceSourceAccessor> accessor,
                         std::string callback,
                         SupportLevel supportLevel = SUPPORTED,
                         const std::string &supportMsg = "");
 
  TypeId HideFromDocumentation (void);
 
  bool LookupAttributeByName (std::string name, struct AttributeInformation *info) const;
  Ptr<const TraceSourceAccessor> LookupTraceSourceByName (std::string name) const;
  Ptr<const TraceSourceAccessor> LookupTraceSourceByName (std::string name, struct TraceSourceInformation *info) const;
 
  uint16_t GetUid (void) const;
  void SetUid (uint16_t uid);
 
  inline TypeId ();
  inline TypeId (const TypeId &o);
  inline TypeId &operator = (const TypeId &o);
  inline ~TypeId ();
 
private:
  friend inline bool operator == (TypeId a, TypeId b);
  friend inline bool operator != (TypeId a, TypeId b);
  friend  bool operator <  (TypeId a, TypeId b);
  explicit TypeId (uint16_t tid);
  void DoAddConstructor (Callback<ObjectBase *> callback);
 
  uint16_t m_tid;
};
 
std::ostream & operator << (std::ostream &os, TypeId tid);
std::istream & operator >> (std::istream &is, TypeId &tid);
 
inline bool operator == (TypeId a, TypeId b);
inline bool operator != (TypeId a, TypeId b);
bool operator <  (TypeId a, TypeId b);
ATTRIBUTE_HELPER_HEADER (TypeId);
 
} // namespace ns3
 
namespace ns3 {
 
TypeId::TypeId ()
  : m_tid (0)
{}
TypeId::TypeId (const TypeId &o)
  : m_tid (o.m_tid)
{}
TypeId &TypeId::operator = (const TypeId &o)
{
  m_tid = o.m_tid;
  return *this;
}
TypeId::~TypeId ()
{}
inline bool operator == (TypeId a, TypeId b)
{
  return a.m_tid == b.m_tid;
}
 
inline bool operator != (TypeId a, TypeId b)
{
  return a.m_tid != b.m_tid;
}
 
 
/*************************************************************************
 *   The TypeId implementation which depends on templates
 *************************************************************************/
 
template <typename T>
TypeId
TypeId::SetParent (void)
{
  return SetParent (T::GetTypeId ());
}
 
template <typename T>
TypeId
TypeId::AddConstructor (void)
{
  struct Maker
  {
    static ObjectBase * Create ()
    {
      ObjectBase * base = new T ();
      return base;
    }
  };
  Callback<ObjectBase *> cb = MakeCallback (&Maker::Create);
  DoAddConstructor (cb);
  return *this;
}
 
} // namespace ns3
 
#endif /* TYPE_ID_H */