#include "callback.h"

namespace ns3 {

CallbackValue::CallbackValue ()

  : m_value ()

{}

CallbackValue::CallbackValue (const CallbackBase &base)

  : m_value (base)

{}

CallbackValue::~CallbackValue ()

{}

void 

CallbackValue::Set (CallbackBase base)

{

  m_value = base;

}

Ptr<AttributeValue> 

CallbackValue::Copy (void) const

{

  return Create<CallbackValue> (m_value);

}

std::string 

CallbackValue::SerializeToString (Ptr<const AttributeChecker> checker) const

{

  std::ostringstream oss;

  oss << PeekPointer (m_value.GetImpl ());

  return oss.str ();

}

bool 

CallbackValue::DeserializeFromString (std::string value, Ptr<const AttributeChecker> checker)

{

  return false;

}

ATTRIBUTE_CHECKER_IMPLEMENT (Callback);

#if (__GNUC__ >= 3)

#include <stdlib.h>

#include <cxxabi.h>

#include "log.h"

std::string

CallbackBase::Demangle(const std::string& mangled)

{

    int status;

    char* demangled = abi::__cxa_demangle(mangled.c_str(),

                                          NULL, NULL, &status);

    std::string ret;

    if (status == 0) {

        NS_ASSERT(demangled);

        ret = demangled;

    }

    else if (status == -1) {

        NS_LOG_UNCOND("Callback demangling failed: Memory allocation failure occured.");

        ret = mangled;

    }

    else if (status == -2) {

        NS_LOG_UNCOND("Callback demangling failed: Mangled name is not a valid under the C++ ABI mangling rules.");

        ret = mangled;

    }

    else if (status == -3) {

        NS_LOG_UNCOND("Callback demangling failed: One of the arguments is invalid.");

        ret = mangled;

    }

    else {

        NS_LOG_UNCOND("Callback demangling failed: status " << status);

        ret = mangled;

    }

    if (demangled) {

        free(demangled);

    }

    return ret;

}

#else

std::string

CallbackBase::Demangle(const std::string& mangled)

{

    return mangled;

}

#endif

} // namespace ns3