OperationExecutor.cc

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/*
    Copyright (c) 2002-2010 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file OperationExecutor.cc
 *
 * Definition of OperationExecutor class.
 *
 * @author Jussi Nykänen 2004 (nykanen-no.spam-cs.tut.fi)
 * @author Pekka Jääskeläinen 2005,2010 (pjaaskel-no.spam-cs.tut.fi)
 * @note rating: red
 */
 
#include <string>
 
#include "OperationExecutor.hh"
#include "Operation.hh"
#include "FUState.hh"
#include "PortState.hh"
 
using std::string;
 
/**
 * Constructor.
 *
 * @param parent Parent FUState.
 */
OperationExecutor::OperationExecutor(FUState& parent) : 
     hasPendingOperations_(false), parent_(&parent) {
}
 
/**
 * Destructor.
 */
OperationExecutor::~OperationExecutor() {
}
 
/**
 * Adds binding of operand to a port.
 *
 * @param io Operand index.
 * @param port Port to be bind.
 * @exception IllegalRegistration If parent of the port is not the same as the
 *                                parent of the executor.
 */
void
OperationExecutor::addBinding(int io, PortState& port) {
    if (io > static_cast<int>(bindings_.size()) - 1) {
        bindings_.resize(io, NULL);
    }
    
    if (&port.parent() != parent_) {
        string msg = "Parent of the port and executors differs";
        throw IllegalRegistration(__FILE__, __LINE__, __func__, msg);
    }
 
    if (bindings_[io - 1] != NULL) {
        string msg = "Operand with given index has been already bound"
            " to a port";
        throw IllegalRegistration(__FILE__, __LINE__, __func__, msg);
    }
 
    bindings_[io - 1] = &port;
}
 
void
OperationExecutor::reset() {
    return;
}