phase.cc

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  with this work for additional information regarding copyright ownership.
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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