RFPort.cc

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file RFPort.cc
 *
 * Implementation of RFPort class.
 *
 * @author Lasse Laasonen 2005 (lasse.laasonen-no.spam-tut.fi)
 * @note rating: red
 */
 
#include <string>
 
#include "RFPort.hh"
#include "BaseRegisterFile.hh"
#include "ObjectState.hh"
 
using std::string;
 
namespace TTAMachine {
 
const string RFPort::OSNAME_RFPORT = "rf_port";
 
/**
 * The constructor.
 *
 * @param name Name of the port.
 * @param parent The parent register file of the port.
 * @exception InvalidName If the given name is not a valid component name.
 * @exception ComponentAlreadyExists If there is another port with the same
 *                                   name in the parent unit.
 */
RFPort::RFPort(const std::string& name, BaseRegisterFile& parent)
    : Port(name, parent) {}
 
/**
 * The constuctor.
 *
 * Loads the state of the object from the given ObjectState tree.
 *
 * @param state The ObjectState tree.
 * @param parent The parent unit of the port.
 * @exception ObjectStateLoadingException If an error occurs while loading
 *                                        the state.
 */
RFPort::RFPort(const ObjectState* state, Unit& parent) : Port(state, parent) {}
 
/**
 * The destructor.
 */
RFPort::~RFPort() {
}
 
 
/**
 * Returns the bit width of the port.
 *
 * @return The bit width of the port.
 */
int
RFPort::width() const {
    return parentUnit()->width();
}
 
 
/**
 * Returns the parent register file.
 *
 * @return The parent register file.
 */
BaseRegisterFile*
RFPort::parentUnit() const {
    return static_cast<BaseRegisterFile*>(Port::parentUnit());
}
 
 
/**
 * Saves the state of the object to an ObjectState tree and returns it.
 *
 * @return The newly created ObjectState tree.
 */
ObjectState*
RFPort::saveState() const {
    ObjectState* state = Port::saveState();
    state->setName(OSNAME_RFPORT);
    return state;
}
 
 
/**
 * Loads the state of the object from the given ObjectState tree.
 *
 * @param state An ObjectState instance representing state of an RFPort.
 * @exception ObjectStateLoadingException If the given ObjectState instance
 *                                        is invalid.
 */
void
RFPort::loadState(const ObjectState* state) {
    if (state->name() != OSNAME_RFPORT) {
        const string procName = "RFPort::loadState";
        throw ObjectStateLoadingException(__FILE__, __LINE__, procName);
    }
 
    Port::loadState(state);
}
}