phase.cc

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  more contributor license agreements.  See the NOTICE file distributed
  with this work for additional information regarding copyright ownership.
  Accellera licenses this file to you under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with the
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    http://www.apache.org/licenses/LICENSE-2.0
 
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#include <cstring>
#include <map>
#include <string>
#include <typeindex>
 
#include "systemc/ext/tlm_core/2/generic_payload/phase.hh"
#include "systemc/ext/utils/sc_report_handler.hh"
 
namespace tlm
{
 
namespace
{
 
struct tlm_phase_registry
{
    typedef unsigned int key_type;
 
    static tlm_phase_registry &
    instance()
    {
        static tlm_phase_registry inst;
        return inst;
    }
 
    unsigned int
    register_phase(std::type_index type, std::string name)
    {
        type_map::const_iterator it = ids_.find(type);
 
        if (name.empty()) {
            SC_REPORT_FATAL( sc_core::SC_ID_INTERNAL_ERROR_,
                    "unexpected empty tlm_phase name" );
            return UNINITIALIZED_PHASE;
        }
 
        if (it == ids_.end()) {
            // new phase - generate/store ID and name
            type_map::value_type v(type, static_cast<key_type>(names_.size()));
            names_.push_back(name_table::value_type(name.data(), name.size()));
            ids_.insert(v);
            return v.second;
        }
 
        if (names_[it->second] != name) {
            SC_REPORT_FATAL(sc_core::SC_ID_INTERNAL_ERROR_,
                    "tlm_phase registration failed: duplicate type info" );
            sc_core::sc_abort();
        }
        return it->second;
    }
 
    const char *
    get_name(key_type id) const
    {
        sc_assert(id < names_.size());
        return names_[id].c_str();
    }
 
  private:
    typedef std::map<std::type_index, key_type> type_map;
    typedef std::vector<std::string> name_table;
 
    type_map ids_;
    name_table names_;
 
    tlm_phase_registry() : names_(END_RESP + 1)
    {
        names_[UNINITIALIZED_PHASE] = "UNINITIALIZED_PHASE";
        names_[BEGIN_REQ] = "BEGIN_REQ";
        names_[END_REQ] = "END_REQ";
        names_[BEGIN_RESP] = "BEGIN_RESP";
        names_[END_RESP] = "END_RESP";
    }
};
 
} // anonymous namespace
 
tlm_phase::tlm_phase(unsigned int id) : m_id(id)
{}
 
tlm_phase::tlm_phase(const std::type_info &type, const char *name) :
    m_id(tlm_phase_registry::instance().register_phase(type, name))
{}
 
const char *
tlm_phase::get_name() const
{
    return tlm_phase_registry::instance().get_name(m_id);
}
 
} // namespace tlm