DestinationField.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 DestinationField.cc
 *
 * Implementation of DestinationField class.
 *
 * @author Lasse Laasonen 2005 (lasse.laasonen-no.spam-tut.fi)
 * @note rating: red
 */
 
#include <string>
 
#include "DestinationField.hh"
#include "MoveSlot.hh"
#include "Application.hh"
#include "ObjectState.hh"
 
using std::string;
 
const std::string DestinationField::OSNAME_DESTINATION_FIELD = "dest_field";
 
/**
 * The constructor.
 *
 * Registers the destination field to the given move slot automatically.
 *
 * @param socketIDPos Position of the socket ID within the destination field.
 * @param parent The parent move slot.
 * @exception ObjectAlreadyExists If the parent move slot already has a
 *                                destination field.
 * @exception IllegalParameters If the given socket ID position is not the same
 *                              with other destination fields.
 */
DestinationField::DestinationField(
    BinaryEncoding::Position socketIDPos, MoveSlot& parent)
    : SlotField(socketIDPos, parent) {
    BinaryEncoding* bem = parent.parent();
    for (int i = 0; i < bem->moveSlotCount(); i++) {
    MoveSlot& slot = bem->moveSlot(i);
    if (slot.hasDestinationField() &&
        slot.destinationField().componentIDPosition() != socketIDPos) {
        const string procName = "SourceField::SourceField";
        throw IllegalParameters(__FILE__, __LINE__, procName);
    } else {
        break;
    }
    }
 
    setParent(NULL);
    parent.setDestinationField(*this);
    setParent(&parent);
}
 
/**
 * The constructor.
 *
 * Loads the state of the object from the given ObjectState tree.
 *
 * @param state The ObjectState tree.
 * @param parent The parent move slot.
 * @exception ObjectStateLoadingException If an error occurs while loading the
 *                                        state.
 * @exception ObjectAlreadyExists If the parent move slot already has a
 *                                destination field.
 */
DestinationField::DestinationField(const ObjectState* state, MoveSlot& parent)
    : SlotField(state, parent) {
    if (state->name() != OSNAME_DESTINATION_FIELD) {
    const string procName = "DestinationField::DestinationField";
    throw ObjectStateLoadingException(__FILE__, __LINE__, procName);
    }
 
    setParent(NULL);
    parent.setDestinationField(*this);
    setParent(&parent);
}
 
/**
 * The destructor.
 */
DestinationField::~DestinationField() {
    MoveSlot* parent = this->parent();
    assert(parent != NULL);
    setParent(NULL);
    parent->unsetDestinationField();
}
 
 
/**
 * Saves the state of the object to an ObjectState tree.
 *
 * @return The newly created ObjectState tree.
 */
ObjectState*
DestinationField::saveState() const {
    ObjectState* state = SlotField::saveState();
    state->setName(OSNAME_DESTINATION_FIELD);
    return state;
}